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TK 51T-A2 PWM Driver Module 30Pin Inverter Welding Machine Control Board

Cristophar — Sat, 18 Jul 2026 11:06:31 +0000

TK 51T-A2 PWM Driver Module 30Pin Inverter Welding Machine Control Board acts as a centralized, high-precision control unit engineered specifically for industrial inverter welding machines. This sophisticated daughterboard generates the vital pulse-width modulation (PWM) signals required to drive high-power IGBT or MOSFET inverter topologies safely and efficiently. Consequently, it stabilizes the welding arc and optimizes power delivery under fluctuating load conditions. The module relies on a dense 30-pin interface to handle power delivery, feedback loops, and protection monitoring simultaneously. Furthermore, its robust construction resists the severe electrical noise and thermal stress common to industrial workshop environments. Therefore, repairing or upgrading your machinery with this genuine replacement control board ensures consistent arc characteristics and restores original factory performance parameters.

Key Features:

Precise PWM Generation: Delivers highly accurate pulse-width modulation waveforms to secure an exceptionally stable welding current and smooth arc control.
Comprehensive Protection Circuits: Includes integrated monitoring hooks for over-current, over-voltage, and thermal overload conditions to safeguard the main inverter switches.
High-Density 30-Pin Interface: Consolidates power inputs, feedback lines, error signals, and gate drive outputs onto a single, standardized 30-pin inline layout.
Industrial-Grade Noise Immunity: Features strategic onboard filtering and a optimized multi-layer PCB layout; consequently, the board rejects high-frequency electromagnetic interference (EMI) from the welding arc.
Pre-calibrated Tuning: Ships with factory-set potentiometer adjustments for critical timing constraints, which minimizes setup time during machinery overhauls.

Technical Specifications:

Input Operating Voltage: 15 V_DC (±10% dual rail or single rail depending on system configuration)
Interface Form Factor: 30-Pin Male Header Inline Layout
PWM Frequency Range: ≈ 20 kHz to 40 kHz (Optimized for standard industrial inverter topologies)
Maximum Duty Cycle: ≈ 45% per channel (Includes dead-time insertion to prevent shoot-through currents)
Output Drive Capability: Designed to interface with external push-pull current amplification driver stages
Feedback Sensing Voltage: Configured for standard current transformer and shunt inputs (≤ 5 V peak inputs)

Mechanical Specifications:

Form Factor: Vertical Plug-in Daughterboard Card
Pin Connector Style: Single row, through-hole 30-pin standard male header strip
Substrate Material: Flame-retardant FR-4 fiberglass reinforced epoxy
Coating Protections: Features a moisture-resistant conformal coating to insulate against conductive metallic grinding dust.

Dimensions:

Total Board Length: ≈ 82.5 mm
Total Board Height: ≈ 45.0 mm
Pin Center-to-Center Pitch: Standard 2.54 mm (0.1 inch) spacing
Overall Module Thickness: ≈ 12.0 mm (Including protruding electrolytic capacitors and trimmer pots)

Pinout and Wiring:

Pins 1 to 5 (Power Supply In): Receive regulated operating voltages, typically including +15V, −15V, and digital ground references.
Pins 6 to 12 (Feedback Sensors): Accept current-transformer, voltage feedback, and thermal thermistor signals directly from the main transformer and output diodes.
Pins 13 to 20 (Control and Adjustments): Connect to external front-panel potentiometer controls for setting the current target, arc force, and hot-start parameters.
Pins 21 to 25 (PWM Driver Outputs): Route the complementary high-speed PWM gate drive signals to the primary inverter driver stage boards.
Pins 26 to 30 (Status and Protection): Link directly to front-panel error LEDs, standby switches, and remote control triggers.
Wiring Note: However, always verify the manufacturer-specific pin matching schema of your primary mainboard before powering on, as minor variations exist across factory production runs.

Datasheet Reference:

Download Core UC3525/SG3525 PWM Controller IC Datasheet

Commonly Used in:

Inverter Welding Machines: Serving as the main controller logic inside multi-board IGBT welding architectures.
Heavy Industrial Overhauls: Acting as a universally compatible replacement control card for repairing generic import welders.
DIY Power Inverters: Providing a robust base timing board for building high-power custom induction heating setups.

Applications:

Shielded Metal Arc Welding (SMAW): Regulates stable constant-current curves required for stick welding applications.
Gas Tungsten Arc Welding (GTAW): Offers precise low-current pulse timing required for fine-scale TIG operations.
Gas Metal Arc Welding (GMAW): Delivers steady power control loops necessary for consistent wire-feed MIG welding execution.

Equivalent Models:

TK 51T-A1: An older iteration featuring slightly modified feedback input sensitivities, which users can adapt through minor recalibrations.
ZX7-200 Control Board: A functionally identical 30-pin modular timing driver card shared widely across generic 200A inverter welding topologies.
SG3525 30-Pin Controller Card: A generic commercial equivalent built around the identical pulse-width modulation platform.

Package Includes:

1 x TK 51T-A2 PWM Driver Module 30Pin Inverter Welding Machine Control Board

Pure Sine Wave Inverter Driver Board EGS002 LCD Display

Cristophar — Sat, 18 Jul 2026 11:06:31 +0000

Pure Sine Wave Inverter Driver Board EGS002 LCD Display is a comprehensive, high-performance driver module designed for single-phase pure sine wave inverter systems. This board utilizes the EG8010 digital generator chip as its core and couples it with the IR2110S high-voltage half-bridge driver to provide a complete SPWM (Sinusoidal Pulse Width Modulation) control solution. Consequently, it enables users to build reliable, high-efficiency power inverters with minimal external circuitry. The module also features a dedicated interface for the included LCD display, which provides real-time monitoring of critical parameters like voltage, current, and temperature. Furthermore, its robust protection logic ensures the safety of both the inverter and the connected load. Therefore, the EGS002 remains the top choice for DIY enthusiasts and industrial engineers seeking a stable 50/60Hz AC power source.

Key Features:

Pure Sine Wave Output: The module generates a high-precision pure sine wave signal, ensuring compatibility with sensitive medical and laboratory equipment.
Integrated Protection Logic: It offers built-in protection against overvoltage, undervoltage, overcurrent, and overheating to prevent system failure.
Adjustable Frequency: Users can easily select between fixed 50Hz and 60Hz frequencies or use the variable 0−400Hz mode via jumper settings.
LCD Real-Time Display: The included 12832 LCD screen displays essential data, allowing for immediate diagnostics and performance tracking.
Dead-Time Control: Four adjustable dead-time settings (300ns, 500ns, 1.0us, and 1.5us) help prevent “shoot-through” in the power MOSFET stage.

Technical Specifications:

Core Controller: EG8010 ASIC
Gate Driver IC: Dual IR2110S
Logic Voltage (VCC): +5 V_DC
Driver Supply Voltage (VB): +12 V_DC to +20 V_DC
Output Waveform: Pure Sine Wave
Harmonic Distortion (THD): ≤ 3%
Frequency Stability: ± 0.1 Hz
Modulation Frequency: 20 KHz

Mechanical Specifications:

Board Material: High-grade FR-4 glass fiber PCB
Interface Type: 17-pin vertical header
Display Interface: 7-pin dedicated LCD port
Weight: ≈ 25 g (Combined board and LCD)

Dimensions:

Driver Board Size: ≈ 62 mm x 33 mm
LCD Module Size: ≈ 35 mm x 22 mm
Pin Pitch: 2.54 mm

Pinout and Wiring:

VCC/GND: Connect to the 5V logic power supply.
12V: Provide the 12V gate drive voltage for the IR2110S chips.
1LO/2LO & 1HO/2HO: Connect these pins to the gates of the H-bridge power MOSFETs.
VFB/IFB: Voltage and current feedback pins used for closed-loop regulation and protection.
TFB: Temperature feedback input for the thermal shutdown circuit.
LCD Port: Connect the 7-wire cable directly to the included LCD module.

Datasheet Reference:

Download EGS002 / EG8010 Driver Board Datasheet

Commonly Used in:

DIY Solar Inverters: Converting 12V, 24V, or 48V DC battery power into standard household AC.
Uninterruptible Power Supplies (UPS): Providing a clean backup power source during utility failures.
Variable Frequency Drives: Controlling AC motor speeds in experimental setups.

Applications:

Single-Phase Inverters: Serves as the primary control logic for building 500W to 3000W pure sine wave inverters.
Power Supply Prototyping: Ideal for academic research into power electronics and SPWM techniques.
Wind Power Conversion: Stabilizing fluctuating AC from wind turbines through a DC-link stage.

Equivalent Models:

EGS001: An earlier version without the specific LCD support and updated logic.
EGS003: A newer high-power variant using the EG8011 chip, however, it features different pin configurations.
KA225: A similar industrial-grade SPWM driver board used in commercial inverter units.

Package Includes:

1 x Pure Sine Wave Inverter Driver Board EGS002 LCD Display
1 x Connecting Ribbon Cable

SI5351 High Frequency square wave Signal Generator Module

Cristophar — Sat, 18 Jul 2026 11:06:31 +0000

SI5351 High Frequency Square Wave Signal Generator Module is a versatile clock generator that uses the innovative Silicon Labs Si5351A IC to produce up to three independent, non-integer related clock frequencies from a single crystal reference. This module effectively replaces multiple crystals and oscillators, consequently simplifying circuit design and reducing overall component count in frequency synthesis applications. It generates highly accurate square wave signals ranging from 8 kHz up to 160 MHz, making it an ideal choice for radio, embedded, and test equipment designs. Furthermore, you can easily configure the Si5351 via the I²C interface, allowing microcontrollers to dynamically change output frequencies on the fly for phase-locked loop (PLL) and clock distribution tasks. Therefore, engineers use this module to achieve flexible and precise timing solutions in complex digital systems.

Key Features:

Wide Frequency Range: Generates square wave output signals from 8 kHz up to 160 MHz across three independent channels.
High Precision: Utilizes an internal PLL (Phase-Locked Loop) and VCO (Voltage Controlled Oscillator) combined with a crystal reference for high-accuracy and low-jitter frequency synthesis.
Three Independent Outputs: Provides three separate clock outputs (CLK0, CLK1, CLK2), each capable of generating a unique, customizable frequency.
I²C Control: Features a simple two-wire I²C interface, enabling effortless integration and runtime frequency programming by a host microcontroller.
Single Crystal Reference: Requires only one external crystal oscillator (typically 25 MHz or 27 MHz) to generate all three output frequencies, saving space and cost.

Technical Specifications:

Clock Generator IC: Silicon Labs Si5351A
Output Channels: 3 (CLK0, CLK1, CLK2)
Output Frequency Range: 8 kHz to 160 MHz (Square Wave)
Reference Crystal: Typically 25 MHz or 27 MHz (Onboard)
Control Interface: I²C (Up to 400 kHz)
Supply Voltage (V_CC): 3.3 V to 5 V DC
Output Jitter: Typically ≤ 100 ps RMS

Mechanical Specifications:

Package Type: Small PCB module with header pins.
Mounting: Pin headers suitable for breadboard or through-hole PCB integration.
Output Impedance: 50 Ω nominal on clock outputs.

Dimensions:

Module Length: ≈ 20 mm
Module Width: ≈ 15 mm
Pin Pitch: 2.54 mm (0.1 inch)
Weight: ≈ 2 g (Ultra-lightweight)

Pinout and Wiring:

VCC: Connect to 3.3 V or 5 V power supply.
GND: Connect to the common ground reference.
SCL: I²C Clock line. Connect to the microcontroller’s I²C SCL pin.
SDA: I²C Data line. Connect to the microcontroller’s I²C SDA pin.
CLK0, CLK1, CLK2: Digital clock output pins (Square wave signals).
Wiring Note: The SCL and SDA lines typically require external pull-up resistors (e.g., 4.7 kΩ) to VCC for proper I²C communication.

Datasheet Reference:

Download Silicon Labs Si5351A/B/C Clock Generator Datasheet

Commonly Used in:

Software Defined Radios (SDR): Provides the necessary local oscillator (LO) and clocking signals for receivers and transmitters.
Test and Measurement Equipment: Used in frequency counters, signal sources, and laboratory calibration tools.
Amateur Radio (Ham Radio): Core component in VFOs (Variable Frequency Oscillators) and BFOs (Beat Frequency Oscillators).

Applications:

Frequency Synthesizers: Creating multiple, highly stable clock signals from a single reference for communication equipment.
Clock Distribution: Providing reliable timing for high-speed ADCs/DACs and digital logic across a circuit board.
High-Speed Data Acquisition: Serving as the sampling clock for complex digital signal processing (DSP) systems.

Equivalent Models:

AD9850/AD9851 (Analog Devices): These are DDS (Direct Digital Synthesis) chips that offer high-resolution sine wave generation, however, the Si5351 typically offers a wider frequency range for square wave clocking.
MAX038 (Maxim Integrated): A function generator IC, but ultimately, the Si5351 provides a much simpler digital interface and multi-output capability.

Package Includes:

1 x SI5351 High Frequency Square Wave Signal Generator Module

PWM to Voltage 0-100% to-10V Converter Module

Cristophar — Sat, 18 Jul 2026 11:06:31 +0000

PWM to Voltage 0-100% to 0-10V Converter Module is a vital interface component, bridging the gap between digital control systems and analog devices. Many industrial and motor control systems, such as PLCs and VFDs (Variable Frequency Drives), rely on a standard 0-10V analog voltage signal for speed or intensity regulation. This module efficiently takes a Pulse Width Modulation (PWM) signal, typically from a microcontroller like Arduino or an industrial controller, and accurately transforms its duty cycle (0% to 100%) into a proportional 0V to 10V DC voltage output. Engineers use this module to leverage the flexibility of digital control while maintaining compatibility with robust, industry-standard analog equipment, ensuring precise and reliable speed control for motors, dimmers for high-power lighting, and flow control systems.

Key Features:

High Conversion Accuracy: Precisely converts the PWM duty cycle into a linear 0V to 10V analog output voltage.
Wide Input Frequency Range: Supports a broad range of PWM input frequencies, typically from 1kHz to 3kHz, making it compatible with most microcontrollers and industrial sources.
Industry Standard Output: Provides a stable 0-10V DC output, which is the standard signal for controlling variable frequency drives (VFDs) and other industrial equipment.
Built-in Filtering: Integrates effective filtering to smooth the PWM signal, ensuring a clean and steady DC output voltage.
Calibration Function: Includes potentiometers or jumpers for fine-tuning the full-scale (10V) and zero-scale (0V) output, ensuring perfect calibration for specific applications.
Opto-Isolation: Some versions feature opto-isolation on the input, protecting the sensitive microcontroller from noise or voltage spikes from the industrial system.

Technical Specifications:

Input Signal Type: PWM (Pulse Width Modulation) Signal
PWM Input Level: Typically 3.3V to 12V or 5V to 24V (Specific range depends on the model variant)
PWM Input Frequency: 1 kHz to 3 kHz (Adjustable range)
Output Signal Type: DC Analog Voltage
Output Voltage Range: 0 V to 10 V
Conversion Linearity: $pm$ 0.1 V (Typical)
Supply Voltage: DC 12V to 30V (Required to generate the 10V output)

Mechanical Specifications:

Mounting: Screw holes for panel or enclosure mounting.
Connectors: Screw terminals for secure and robust wire connections for industrial environments.
Adjustments: Onboard potentiometers for fine-tuning output voltage ($V_{text{OUT}}$).

Dimensions:

Board Length: ~45 mm
Board Width: ~35 mm
Board Height: ~15 mm

Pinout and Wiring:

VCC: Connect the module’s positive power supply (DC 12V-30V).
GND: Connect to the power supply ground and the control signal ground.
PWM: Input terminal for the PWM signal from your microcontroller (e.g., Arduino PWM pin).
VOUT: Output terminal for the 0-10V DC analog voltage signal.
GND (Output): Connect to the ground reference of the device being controlled (e.g., the VFD’s analog input ground).
Wiring Note: You must supply a voltage greater than 10V to VCC to ensure the module can accurately output the full 10V range. Connect the VOUT and Output GND pins directly to the analog speed/signal inputs of the target device (like a VFD).

Datasheet Reference:

Download Datasheet (Generic Reference)

Commonly Used in:

Industrial Automation: Interface microcontrollers or single-board computers with standard industrial control loops.
CNC/Machine Control: Control spindle motor speeds using the industry-standard 0-10V interface.
Smart Lighting Systems: Drive professional-grade dimmable LED drivers that require a 0-10V control signal.

Applications:

Motor Speed Control: Command the speed of AC or DC motors through VFDs or motor controllers that accept 0-10V input.
Valve and Damper Control: Translate a digital signal into a proportional analog signal for precise positioning of flow control mechanisms.
Proportional Control: Use PWM to achieve highly adjustable control in HVAC systems and laboratory equipment.

Equivalent Models:

Dedicated DAC Chips (e.g., MCP4725): Offer I2C digital-to-analog conversion, a software-based approach, but often require external circuits to boost the output to 10V.
PLC Analog Output Modules: Integrated modules within a Programmable Logic Controller (PLC) chassis for industrial use.

Package Includes:

1 x PWM to Voltage 0-100% to 0-10V Converter Module

EGS002 EG8010 IR2110 DC-AC SPWM Pure Sine Wave Inverter Driver Module

Cristophar — Sat, 18 Jul 2026 11:06:31 +0000

EGS002 EG8010 IR2110 DC-AC SPWM Pure Sine Wave Inverter Driver Module is an advanced, integrated solution that dramatically simplifies the design and construction of high-quality DC-to-AC pure sine wave inverters. This compact driver board consequently utilizes the powerful EG8010 SPWM control chip and the robust IR2110 high/low side MOSFET/IGBT gate driver ICs, creating a complete control system. The module generates the required sinusoidal Pulse Width Modulation (SPWM) signals with high accuracy. Furthermore, its sophisticated logic includes crucial protection features, such as undervoltage, overvoltage, overcurrent, and overtemperature safeguards, ensuring system longevity and safety. Therefore, electronics designers and hobbyists frequently choose the EGS002 to build reliable, high-efficiency power backup systems, solar inverters, and automotive power supplies.

Key Features:

Pure Sine Wave Output: Generates highly accurate Sinusoidal Pulse Width Modulation (SPWM) signals, resulting in an AC output with a Total Harmonic Distortion (THD) of ≤ 3%, perfect for sensitive electronics.
Integrated Gate Drivers: Incorporates the industry-standard IR2110 driver ICs, offering high-speed, high-current drive capability for the external power stage MOSFETs or IGBTs.
Adjustable Output Frequency: Allows users to select the output frequency, supporting both 50 Hz and 60 Hz standards via a jumper setting.
Protection Circuits Built-in: Includes integrated protection for DC Undervoltage, Overvoltage, Overcurrent, and Overtemperature, enhancing the reliability of the overall inverter system.
Dead Band Control: Features adjustable dead-time control (300 nS, 500 nS, 1 μS, 1.5 μS) to prevent shoot-through in the H-bridge power stage, a critical factor for efficiency.

Technical Specifications:

Core Chip: EG8010 (SPWM Control ASIC)
Driver Chip: IR2110 (High and Low Side MOSFET/IGBT Gate Driver)
Input Voltage (V_in): 10 V to 18 V DC (Operating voltage for the module’s logic)
Output Frequency Options: 50 Hz or 60 Hz (Selectable via jumper)
Soft-Start Function: Yes (Pin controlled)
Output Waveform: Pure Sine Wave (THD ≤ 3%)
Operating Temperature Range: −10°C to +50°C

Mechanical Specifications:

Package Type: Printed Circuit Board (PCB) Module
Mounting Holes: Four standard mounting holes (M3 size typically)
Input/Output Connection: Pin headers and screw terminals for easy interfacing.
Indicator LEDs: Includes status and error indicator LEDs for monitoring operation.

Dimensions:

Module Length: ≈ 65.0 mm
Module Width: ≈ 36.0 mm
Module Height: ≈ 12.0 mm (Max component height)
Weight: ≈ 18 g (Extremely lightweight for portable applications)

Pinout and Wiring:

J4 (Power Input): Connect 12 V DC power for the EG8010/IR2110 ICs. Pin 1 is GND, Pin 2 is +12 V.
J5 (Feedback/Protection): Used for voltage feedback, current feedback, and temperature sensor input.
J3 (Output): Provides the four required high-frequency SPWM signals to drive the external H-bridge power stage (e.g., L1, L2, H1, H2).
Jumper JP1/JP2: Selects 50 Hz (JP1 closed) or 60 Hz (JP2 closed) output frequency.
Jumper JP5: Selects the dead-time setting. Remember to set this based on your external MOSFET/IGBT switching speed.

Datasheet Reference:

Download EG8010 SPWM Controller Datasheet

Commonly Used in:

DIY Pure Sine Wave Inverters: Serves as the brain for custom-built 12V/24V/48V inverters.
UPS and Power Backup Systems: Provides the stable sine wave required for running sensitive computer equipment and medical devices.
Solar and Wind Power Systems: Forms the core control logic for converting DC battery power into grid-quality AC power.

Applications:

Driving Sensitive Loads: Powering loads such as variable speed motors, printers, and audio equipment that demand low harmonic distortion.
Off-Grid and Mobile Power: Building reliable AC sources for RVs, boats, and remote site installations.
Inverter Development and Testing: For example, engineers use this module for rapid prototyping of new power conversion topologies.

Equivalent Models:

Dedicated SPWM IC Solutions: Alternative designs often use chips like the specialized sine wave generator parts (e.g., some specific Microchip or TI controllers), however, they usually require external gate drivers.
EGS003 / EGS004 Modules: Newer revisions or variants from the same manufacturer, offering minor feature or package changes but maintaining the core pure sine wave functionality.

Package Includes:

1 x EGS002 EG8010 IR2110 DC-AC SPWM Pure Sine Wave Inverter Driver Module

SG3525 LM358 Inverter Driver Board 12V 24V

Cristophar — Sat, 18 Jul 2026 11:06:30 +0000

SG3525 LM358 Inverter Driver Board is a specialized control module designed to create pure sine wave or modified sine wave power inverters, converting low-voltage DC (12V or 24V) into high-voltage AC (220V/110V). This board utilizes the robust SG3525 Pulse Width Modulation (PWM) controller chip to generate precise switching signals and the versatile LM358 operational amplifier for error feedback and voltage regulation. You can easily adjust the output frequency and voltage feedback, giving you fine-tuned control over the inverter’s performance. This module simplifies the complex task of designing the control stage for a high-power inverter, allowing you to focus on selecting the power MOSFETs and output transformer. It is an essential component for DIY solar inverters, backup power supplies, and portable AC power sources.

Key Features:

Dual Voltage Compatibility: Supports wide input voltage operation from 12V to 24V DC, adapting to various battery configurations.
SG3525 PWM Controller: Features the industry-standard SG3525 for reliable, high-frequency, push-pull PWM signal generation.
LM358 Error Amplifier: Integrates the LM358 op-amp to handle voltage feedback, ensuring stable and regulated AC output.
Adjustable Frequency and Voltage: Includes onboard potentiometers that let you precisely set the output frequency (typically 50Hz/60Hz) and output voltage amplitude.
Drive Protection: Incorporates robust output stage components to drive external high-power MOSFETs or IGBTs reliably.

Technical Specifications:

Input DC Voltage Range: 12 V / 24 V DC (User selectable via jumper/wiring)
Output AC Waveform: Modified Sine Wave or Pure Sine Wave (Requires additional filtering/components)
PWM Control Chip: SG3525
Error Feedback Chip: LM358
Output Frequency: Adjustable, typically 50 Hz to 60 Hz
Output Drive Current: Sufficient to drive external MOSFET gates (Low power signal only)

Mechanical Specifications:

Mounting: Four mounting holes allow you to securely fix the PCB within an enclosure.
Indicators: Includes an LED indicator for power or operational status.
Connections: Utilizes screw terminals for robust and secure input and output wiring.

Dimensions:

Length: ≈ 40 mm to 50 mm
Width: ≈ 30 mm to 40 mm
Height: ≈ 15 mm
Weight: ≈ 15 g to 25 g

Pinout and Wiring:

DC Input (+V / GND): Connect these terminals to your 12V or 24V DC battery supply.
PWM Outputs (OUT A / OUT B): These terminals deliver the complementary square wave signals. You will connect them directly to the gates of your external N-channel power MOSFETs (via suitable gate resistors).
Feedback Input (VFB): Connect this pin to a divided and rectified version of the high-voltage AC output for regulation.
Frequency Adjust (Potentiometer): Adjust this component to set the desired output frequency (e.g., 50Hz or 60Hz).

Datasheet Reference:

Download SG3525/LM358 Control Board Manual

Commonly Used in:

DIY Power Inverters: The primary control stage for custom high-power DC-to-AC conversion projects.
Solar Power Systems: Forming the intelligent heart of off-grid solar inverters.
Uninterruptible Power Supplies (UPS): Providing the regulated AC signal in backup battery systems.

Applications:

Portable AC Power: Building inverters for use in vehicles, camping, or remote locations.
Benchtop Power Supplies: Creating regulated low-frequency AC sources for testing or small motors.
Educational Electronics Projects: Teaching the principles of PWM and closed-loop control in power electronics.

Equivalent Models:

TL494 Driver Boards: A common, slightly simpler alternative PWM controller board for power supplies and inverters.
Dedicated Sine Wave Inverter Modules: Higher-cost, integrated modules that include the sine wave shaping circuitry on the board.
EG8010 Driver Boards: Specialized boards that natively generate a pure sine wave signal using a digital controller.

Package Includes:

1 x SG3525 LM358 Inverter Driver Board

XY-LPWM Pulse Frequency Adjustable Module

Cristophar — Sat, 18 Jul 2026 11:06:30 +0000

XY-LPWM Pulse Frequency Adjustable Module is a versatile and high-precision PWM signal generator designed for laboratory development and industrial control applications. This module features a clear LCD display that simultaneously shows frequency and duty cycle, allowing for intuitive adjustments via on-board buttons. Furthermore, it supports serial communication, enabling remote configuration through a microcontroller or PC. The device generates a stable square wave signal across a wide range, making it ideal for driving stepper motor drivers or testing electronic components. Consequently, you can rely on this module for consistent performance in both PWM dimming and speed control tasks. Therefore, the XY-LPWM stands out as an essential tool for engineers requiring a compact and reliable frequency adjustment solution.

Key Features:

Dual Display Interface: The integrated LCD screen provides a sharp readout of both the frequency and duty cycle for real-time monitoring.
Wide Frequency Range: This module covers a broad spectrum from 1 Hz to 150 kHz, divided into four distinct ranges for high-resolution tuning.
Serial Port Control: It features TTL level communication (UART), allowing users to read and set parameters programmatically.
Automatic Parameter Saving: The module automatically stores all settings; consequently, the parameters remain intact even after a power cycle.
High Frequency Accuracy: It maintains an accuracy of approximately 2% in each range, ensuring reliable timing for sensitive pulse-width modulation applications.

Technical Specifications:

Working Voltage: 3.3 V to 30 V DC
Frequency Range: 1 Hz to 150 kHz
Frequency Accuracy: ±2%
Duty Cycle Range: 0% to 100% (Adjustable in 1% increments)
Output Current: 5 mA to 30 mA (Signal level output)
Output Amplitude: PWM amplitude is equal to the input supply voltage.
Ambient Temperature: −20°C to +70°C

Mechanical Specifications:

Display Type: Blue Backlit LCD
Enclosure Material: High-quality ABS Plastic (Open frame design)
Mounting: Integrated mounting clips for panel installation
Buttons: Tactile micro-switches for Frequency (+/-) and Duty (+/-) adjustments.

Dimensions:

Overall Length: ≈ 52 mm
Overall Width: ≈ 32 mm
Overall Height: ≈ 10 mm
Mounting Hole Size: Standard 48 mm x 27 mm cutout

Pinout and Wiring:

VIN+: Positive DC power input (3.3 V to 30 V).
VIN-: Common ground or negative power input.
PWM: Pulse Width Modulation signal output pin.
GND: Signal ground for the PWM output.
RX/TX: UART serial interface pins for remote control via TTL levels.

Datasheet Reference:

Download XY-LPWM Signal Generator Datasheet

Commonly Used in:

Stepper Motor Control: Generating the necessary pulse trains to control the speed and position of stepper motors.
LED Dimming: Providing a high-frequency PWM signal for flicker-free brightness control in LED systems.
DC Motor Speed Controllers: Serving as the control signal for external power MOSFETs or motor drivers.

Applications:

Circuit Prototyping: Acting as a square wave signal generator for testing logic gates and microcontrollers.
Valve Control: Driving solenoid valves with adjustable duty cycles to manage fluid flow rates.
Educational Projects: Demonstrating the principles of pulse-width modulation and frequency response in electronics labs.

Equivalent Models:

XY-KPWM: A similar model featuring an encoder knob for faster frequency adjustments.
ZK-PP2K: A high-power PWM controller that integrates a MOSFET driver for direct load management.
XY-PWM: A standard version however, it may lack the serial communication features found in the LPWM variant.

Package Includes:

1 x XY-LPWM Pulse Frequency Adjustable Module with LCD Display

XY-PWM1 Signal Generator Module

Cristophar — Sat, 18 Jul 2026 11:06:30 +0000

XY-PWM1 Signal Generator Module is a versatile, high-precision PWM (Pulse Width Modulation) generator designed for laboratory testing, motor speed control, and electronic prototyping. This module features a clear digital display that allows users to adjust both frequency and duty cycle independently with high accuracy. Furthermore, the built-in UART communication interface enables seamless integration into automated control systems or remote monitoring setups. Consequently, it provides a reliable square wave signal source for driving power transistors, servos, and dimmer circuits. Therefore, you can achieve professional-grade signal generation in a compact and cost-effective form factor suitable for both hobbyists and industrial engineers.

Key Features:

Independent Adjustment: The module allows for separate control of frequency and duty cycle via onboard buttons, ensuring precise signal output.
LCD Display: A bright, easy-to-read LCD screen displays both values simultaneously, reducing the risk of errors during configuration.
Wide Frequency Range: It covers a broad spectrum from 1 Hz to 150 kHz, making it adaptable for various high-speed switching applications.
Serial Communication: Supports UART (TTL level) commands, which enables users to set parameters through a computer or microcontroller.
Memory Function: The device automatically saves all set parameters upon power-down; consequently, it eliminates the need for reconfiguration after every reboot.

Technical Specifications:

Working Voltage: 3.3 V to 30 V DC
Frequency Range: 1 Hz ≈ 150 kHz
Frequency Accuracy: ±2%
Duty Cycle Range: 0% − 100%
Output Current: 5 mA − 30 mA (Typical)
Output Amplitude: PWM amplitude is equal to the input supply voltage.
Operating Temperature: −20°C to +70°C

Mechanical Specifications:

Display Type: Blue Backlit LCD
Enclosure: Open-frame PCB design with mounting holes
Control Interface: Four tactile push buttons (Freq+, Freq-, Duty+, Duty-)
Signal Type: TTL Square Wave

Dimensions:

Length: ≈ 52 mm
Width: ≈ 32 mm
Height: ≈ 10 mm
Weight: ≈ 14 g

Pinout and Wiring:

VIN+: Positive DC power supply input (3.3 V to 30 V).
VIN-: Negative DC power supply input (Ground).
PWM: PWM signal output pin.
GND: Signal ground for the PWM output.
RX/TX: UART serial communication pins for remote parameter setting.
Wiring Note: Always ensure the input voltage does not exceed 30 V; otherwise, you risk damaging the internal regulator.

Datasheet Reference:

Download XY-PWM1 Signal Generator Module Datasheet

Commonly Used in:

Motor Speed Control: Serving as the control signal for DC motor speed controllers and H-bridge drivers.
LED Dimming: Generating PWM signals to regulate the brightness of high-power LED arrays.
Stepper Motor Testing: Providing a consistent pulse source to verify the operation of stepper motor drivers.

Applications:

Square Wave Generation: Providing a reference signal for research and development laboratory environments.
Circuit Prototyping: Driving power MOSFETs or IGBTs during the design of switching power supplies.
Servo Control: Adjusting the duty cycle to control the precise position of standard RC servos.

Equivalent Models:

XY-LPWM: A similar low-power PWM generator often used for smaller logic-level signal tasks.
ZK-PP2K: An advanced PWM and pulse generator that offers additional frequency modulation features.
HW-753: A standard single-channel PWM module providing similar 150 kHz range capabilities.

Package Includes:

1 x XY-PWM1 Signal Generator Module (1Hz-150kHz)

XR2206 Function Signal Generator DIY Kit

Cristophar — Sat, 18 Jul 2026 11:06:30 +0000

XR2206 Function Signal Generator DIY Kit is a versatile and highly accessible electronic assembly designed to provide high-precision waveforms for laboratory testing and hobbyist experimentation. This kit utilizes the classic XR2206 monolithic function generator integrated circuit to produce high-quality sine, square, and triangle waves. Consequently, it serves as an excellent educational tool for students and a practical benchtop instrument for engineers troubleshooting audio equipment or timing circuits. The module features adjustable frequency and amplitude controls, allowing users to fine-tune the output signals to meet specific project requirements. Furthermore, the inclusion of a transparent acrylic housing ensures the device remains protected while maintaining its aesthetic appeal on any workstation. Therefore, you should consider this DIY kit if you need a cost-effective, multi-functional signal source for your electronics lab.

Key Features:

Triple Waveform Output: The generator produces high-purity sine, triangle, and square waves, giving you the flexibility to test various types of analog and digital hardware.
Wide Frequency Range: This kit covers a broad spectrum from 1 Hz to 1 MHz, providing adequate bandwidth for most audio and low-frequency RF experiments.
Adjustable Parameters: Built-in potentiometers allow you to easily modify the frequency and amplitude, while an internal trimmer adjusts sine wave distortion for maximum signal clarity.
User-Friendly DIY Assembly: All components are through-hole, making the soldering process straightforward for beginners and enthusiasts alike.
Durable Enclosure: The kit includes a precision-cut acrylic case that protects the sensitive PCB from external shorts and physical damage.

Technical Specifications:

Supply Voltage: 9 V to 12 V DC
Waveform Types: Square, Sine, and Triangle
Frequency Range: 1 Hz − 1 MHz
Impedance: 600 Ω ±10%
Sine Wave Distortion: Less than 1% (at 1 kHz)
Sine Wave Flatness: +0.5 dB (1 Hz − 100 kHz)
Square Wave Rise/Fall Time: Less than 50 ns (at 1 kHz)
Triangle Wave Linearity: Less than 1% (up to 100 kHz)

Mechanical Specifications:

PCB Material: High-quality FR-4 Double-sided board
Enclosure Material: Transparent Acrylic (Plexiglass)
Control Interface: Three rotary potentiometers for Coarse Frequency, Fine Frequency, and Amplitude.
Switching: Jumpers for waveform selection and frequency range shifting.

Dimensions:

PCB Size: ≈ 62 mm x 45 mm
Case Size (Assembled): ≈ 72 mm x 55 mm x 18 mm
Total Weight: ≈ 80 g (including housing)

Pinout and Wiring:

DC Input (9V-12V): Connect a regulated DC power source to the onboard power jack or screw terminals.
Ground (GND): Connect to the common ground of your test circuit to ensure signal stability.
Signal Output (OUT): The main output terminal for Sine and Triangle waves.
Square Output (SQW): Dedicated output terminal for the Square wave signal.
Wiring Note: Always ensure the jumper headers are correctly positioned to select the desired frequency range; otherwise, the potentiometers may not reach the target frequency.

Datasheet Reference:

Download Exar XR2206 Monolithic Function Generator Datasheet

Commonly Used in:

Audio Equipment Testing: Validating the performance of amplifiers, filters, and speakers by injecting clean sine or square waves.
Educational Labs: Demonstrating the principles of oscillation and waveform characteristics in physics or electronics classes.
Logic Circuit Troubleshooting: Using the square wave output as a clock source for digital ICs and microcontrollers.

Applications:

Frequency Response Analysis: Determining the cutoff frequencies of passive and active filters.
Calibration: Serving as a reference signal for calibrating oscilloscopes and frequency counters.
Sensor Simulation: Mimicking the output of analog sensors to test control logic before final integration.

Equivalent Models:

ICL8038 Module: A similar function generator kit that also produces sine, square, and triangle waves, though with different voltage requirements.
AD9833 DDS Module: A digital alternative providing much higher frequency precision and software control; however, it lacks the simplicity of an analog DIY kit.
MAX038 Generator: A high-frequency successor to the XR2206, capable of reaching up to 20 MHz, primarily for advanced RF applications.

Package Includes:

1 x XR2206 Function Signal Generator PCB and Components Kit
1 x Transparent Acrylic Case Set with Screws
1 x Detailed Assembly Manual (Digital or Printed)

TL494 PWM Controller Module

Cristophar — Sat, 18 Jul 2026 11:06:30 +0000

TL494 PWM Controller Module is a high-performance integrated circuit (IC) mounted on a compact breakout board, designed to simplify the creation of efficient switching power supplies, DC-DC converters, and motor control circuits. At the heart of this module is the industry-standard TL494 chip, which integrates all the necessary functions for a pulse-width modulation (PWM) control circuit. It features two error amplifiers, an internal reference voltage, an oscillator, and a dead-time control comparator. Engineers and DIY enthusiasts choose this module because it offers a ready-to-use solution for driving power FETs and transistors with precisely controlled duty cycles and frequencies, enabling robust and predictable power management designs.

Key Features:

Integrated PWM Control: Utilizes the powerful TL494 IC to provide precise and stable control over the duty cycle of switching elements.
Adjustable Output Frequency: You can easily set the oscillator frequency using an external resistor and capacitor, offering maximum design flexibility.
Dual Error Amplifiers: The two internal error amplifiers allow for simultaneous voltage and current feedback loops, enhancing regulation accuracy.
Dead-Time Control: A built-in dead-time control comparator gives you the ability to prevent simultaneous conduction of output transistors, which is crucial for full-bridge and half-bridge topologies.
Output Control: The output control pin allows you to select single-ended or push-pull operation, adapting the module to various circuit needs.
5V Reference Output: Provides a stable 5V reference voltage (V_REF) output for external circuit use, simplifying sensor and feedback network design.

Technical Specifications:

Controller IC: TL494
Supply Voltage (V_CC): 7 V to 40 V
Output Voltage (V_C): Up to 40 V
Reference Voltage Output (V_REF): 5.0 V ±5%
Maximum Output Current (I_O): 200 mA (Sink or Source)
Oscillator Frequency Range: 1 kHz to 300 kHz
Output Type: Push-Pull or Single-Ended
Onboard Components: LED power indicator, terminals for external R and C for frequency adjustment.

Mechanical Specifications:

Module Type: Breakout PCB for the DIP-16 TL494 IC.
Connectors: Screw terminals for secure power and output connections; pin headers for control/feedback signals.
Mounting Holes: Two mounting holes for easy installation into enclosures.

Dimensions:

Board Length: ~35 mm
Board Width: ~30 mm
Board Height: ~15 mm (including screw terminals)

Pinout and Wiring:

VCC: Power supply input (7V to 40V).
GND: Ground connection.
OUT1 / OUT2 (C1 / C2): Collector outputs for the two internal transistors. Use these to drive external power stages.
E1 / E2: Emitter outputs for the two internal transistors (typically connected to GND in single-ended mode).
V_REF: Stable 5V Reference Output.
R_T / C_T: Pins for connecting the external resistor (R_T) and capacitor (C_T) to set the oscillator frequency.
DT: Dead-Time Control pin.
EAFB / EAIN: Non-inverting (+) and Inverting (-) inputs for Error Amplifier 1 (used for voltage regulation).
Wiring Note: Connect VCC and GND first. Then, select your desired output frequency using the R_T/C_T terminals. Use the error amplifier inputs to feed back your output voltage or current signal for closed-loop regulation.

Datasheet Reference:

Download TL494 Datasheet

Commonly Used in:

Power Supply Development: The standard IC for building custom desktop computer power supplies and regulated battery chargers.
Inverters and Converters: Essential in designing push-pull, full-bridge, or half-bridge DC-DC converters and small power inverters.
Industrial Control: Used in isolated power delivery stages for industrial machinery and electronic equipment.

Applications:

Regulated Switching Power Supplies: Build high-efficiency, regulated outputs for sensitive electronics.
Battery Charging Systems: Precisely control charging current and voltage for Li-ion, lead-acid, or NiMH batteries.
DC Motor Speed Control: Use the PWM output to vary the effective voltage to DC motors, controlling their speed and torque.
High-Frequency Signal Generation: Create square wave signals for testing and driver circuits.

Equivalent Models:

SG3525: A popular PWM controller IC, often favored for its built-in soft-start capability and high current output drivers.
UC384x Series (e.g., UC3842): Current-mode PWM controllers commonly used for flyback and boost converter topologies.

Package Includes:

1 x TL494 PWM Controller Module