SIGNAL GENERATOR MODULE & OSCILLOSCOPES – iFuture Technology

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

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

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

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

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

NE555 Pulse Frequency Duty Cycle Adjustable Module

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

NE555 Pulse Frequency Duty Cycle Adjustable Module is a versatile square wave signal generator designed for electronic development and prototyping. This module utilizes the classic NE555 timer IC to produce a steady stream of pulses with adjustable parameters. Consequently, users can precisely control both the output frequency and the duty cycle using the two multi-turn potentiometers integrated onto the board. Furthermore, the inclusion of a four-position jumper allows you to switch between different frequency ranges, offering extreme flexibility for various timing requirements. Therefore, this compact module serves as an ideal solution for driving stepper motors, generating clock pulses for digital circuits, or testing PWM-controlled devices.

Key Features:

Adjustable Output: The module features independent potentiometers to fine-tune the output frequency and the duty cycle ratio.
Multiple Frequency Ranges: A built-in jumper allows users to select between four distinct frequency bands, ranging from 1 Hz up to 200 kHz.
Onboard Indicators: An integrated LED provides visual feedback of the output signal; specifically, the LED flashes at low frequencies and changes intensity at higher frequencies.
Stable Signal Generation: The highly reliable NE555 chip ensures a consistent square wave output even under varying load conditions.
Wide Input Voltage: This module operates efficiently across a broad 5 V to 15 V power range, making it compatible with most microcontrollers and industrial power supplies.

Technical Specifications:

Input Voltage (VCC): 5 V to 15 V DC
Input Current: ≥ 100 mA
Output Amplitude: 4.2 V to 11.4 V (Varies based on input voltage)
Maximum Output Current: ≈ 15 mA (at 5 V) to 35 mA (at 12 V)
Low Frequency Range: 1 Hz to 50 Hz
Medium Frequency Range: 50 Hz to 1 kHz
High Frequency Range: 1 kHz to 10 kHz
Ultra-High Frequency Range: 10 kHz to 200 kHz

Mechanical Specifications:

Main Controller: NE555 Precision Timer IC
PCB Material: High-quality FR4 double-sided board
Potentiometer Type: 3296 Multi-turn Trimpots for precision adjustment
Mounting: Four 3 mm mounting holes for easy installation into enclosures.

Dimensions:

Module Length: ≈ 31.0 mm
Module Width: ≈ 22.0 mm
Module Height: ≈ 15.0 mm
Weight: ≈ 7.0 g

Pinout and Wiring:

VCC: Connect to the positive power supply (5 V – 15 V DC).
GND: Connect to the common ground (0 V).
OUT: Output square wave signal to your target circuit or load.
Note: However, always ensure the input voltage does not exceed 15 V to prevent damage to the NE555 IC and the filter capacitors.

Datasheet Reference:

Download NE555 Timer IC Datasheet

Commonly Used in:

Stepper Motor Control: Generating the necessary step pulses for motor drivers in CNC or 3D printing applications.
LED Dimming: Providing a PWM signal to control the brightness of high-power LEDs.
Digital Prototyping: Serving as a master clock source for breadboard-based logic circuits.

Applications:

PWM Signal Generation: Consequently, this module is widely used for DC motor speed control via external power transistors.
Frequency Synthesis: Producing reference frequencies for audio equipment testing and calibration.
Educational Tools: Demonstrating the principles of oscillation and signal modulation in laboratory settings.

Equivalent Models:

XY-LPWM: A digital PWM generator module featuring an LCD display for more precise frequency setting.
LM358 Pulse Module: Uses an operational amplifier for signal generation, however, it generally offers less current drive than the NE555.
AD9833 DDS Module: A high-precision programmable waveform generator for sine, triangle, and square waves.

Package Includes:

1 x NE555 Pulse Frequency Duty Cycle Adjustable Module

2 Channel Signal Generator Module For Square And Rectangular Wave

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

2 Channel Signal Generator Module For Square And Rectangular Wave is a versatile and compact PWM (Pulse Width Modulation) generator designed to produce stable square and rectangular signals across two independent channels. This module allows users to adjust both the frequency and the duty cycle for each channel separately, providing high precision for various electronic testing and control tasks. Consequently, it serves as an excellent tool for engineers and hobbyists who require a reliable digital clock source or motor control signal. Furthermore, the onboard LCD display clearly shows the current frequency and duty cycle parameters, ensuring ease of use during real-time adjustments. Therefore, you can effectively utilize this module to simulate sensor outputs or drive power components in embedded system prototypes.

Key Features:

Dual Independent Channels: The module outputs two PWM signals simultaneously, allowing you to set distinct frequencies and duty cycles for each channel.
High-Resolution LCD: A clear, backlit display provides visual confirmation of all parameters, which simplifies the calibration process.
Wide Frequency Range: This generator covers a broad spectrum from 1 Hz up to 150 kHz, supporting both low-speed and high-speed switching applications.
Serial Communication (UART): Users can programmatically control the module via a TTL serial interface, making it suitable for automated testing environments.
Non-Volatile Memory: The device automatically saves all set parameters upon power-down; consequently, it restores your previous settings when restarted.

Technical Specifications:

Operating Voltage: 3.3 V to 30 V DC
Frequency Range: 1 Hz ≈ 150 kHz
Frequency Accuracy: ≈ 2% in each range
Signal Load Capacity: Output current ≈ 5 mA to 30 mA
Output Amplitude: PWM amplitude is equal to the input supply voltage.
Duty Cycle Range: 0% to 100% (adjustable in 1% increments)
Operating Temperature: −20°C to +70°C

Mechanical Specifications:

Display Type: Blue Backlit LCD
Mounting: Four M3 mounting holes for secure enclosure installation.
Push Buttons: Tactile switches for Frequency+, Frequency-, Duty+, and Duty- controls.
Interface: Screw terminals for power input and PWM output signals.

Dimensions:

Length: 52 mm
Width: 32 mm
Height: 10 mm
Weight: ≈ 15 g

Pinout and Wiring:

VIN+: Connect to the positive DC power supply (3.3V – 30V).
VIN-: Connect to the common ground (GND).
PWM1: Signal output for the first channel (Square/Rectangular wave).
PWM2: Signal output for the second channel (Square/Rectangular wave).
UART (TX/RX): Connect these pins to a USB-to-TTL converter if remote serial control is required.

Datasheet Reference:

Download 2-Channel PWM Signal Generator Module Datasheet

Commonly Used in:

Motor Speed Controllers: Providing the PWM signal required for DC motor drivers and H-bridges.
LED Dimming Systems: Controlling the brightness of high-power LED arrays through rapid switching.
Laboratory Equipment: Serving as a low-cost frequency reference for circuit characterization.

Applications:

Square Wave Generation: Creating clock signals for digital ICs and microcontrollers during the prototyping phase.
Inverter Driving: Acting as the primary signal source for experimental power inverter circuits.
Valve Control: Driving proportional solenoid valves in fluid control systems.
Stepper Motor Pulse Source: Generating the step pulses needed to drive stepper motor controllers.

Equivalent Models:

XY-PWM1: A single-channel variant that offers similar frequency ranges and LCD feedback.
ZK-PP2K: A high-power PWM controller however, it includes integrated MOSFETs for direct load driving.
NE555 Timer Modules: Analog alternatives for basic square wave generation; nevertheless, they lack the precision and digital display of the 2-channel module.

Package Includes:

1 x 2 Channel Signal Generator Module For Square And Rectangular Wave

SG3525 PWM Controller Module

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

SG3525 PWM Controller Module leverages the widely respected SG3525 pulse-width modulation controller IC, providing a robust, high-performance solution for designing modern switching power supplies and DC-DC converters. This module simplifies the integration of a highly stable oscillator, error amplifier, and output drivers into your circuit, allowing you to achieve precise voltage regulation and efficient power delivery. As a fixed-frequency device featuring feed-forward control and remote ON/OFF sequencing, the SG3525 module empowers engineers and hobbyists to construct sophisticated, high-power solutions such as inverters, battery chargers, and motor controllers where reliability and tight control are paramount.

Key Features:

Highly Integrated Design: Incorporates the SG3525A IC, streamlining the creation of complex switching power circuits.
Stable Internal Oscillator: Offers frequency control ranging from 1 Hz up to 400 kHz, adjustable with external resistors and capacitors (R_T and C_T).
Shorted Output Protection: Includes an under-voltage lockout (UVLO) circuit and soft-start function to protect output devices during power-up and fault conditions.
Push-Pull Output Stage: Features dual high-current output drivers capable of sinking and sourcing up to 200 mA, perfectly suited for driving power MOSFETs or IGBTs.
Dead Time Control: Allows precise adjustment of the output dead time to prevent shoot-through currents in the external power stage, maximizing efficiency and component safety.

Technical Specifications:

Input Voltage (V_IN): 8 V to 35 V DC
Output Driver Current (Source/Sink): ≈ 200 mA (Peak)
Oscillator Frequency Range: 1 Hz to 400 kHz
Reference Voltage (V_REF): 5.1 V (±1%)
Operating Temperature: ≈ -25°C to 85°C

Mechanical Specifications:

Module Layout: Compact PCB with header pins for easy prototyping.
Pin Pitch: Standard 2.54 mm (0.1 in) for breadboard and perfboard compatibility.
Mounting: Typically includes pre-drilled holes for secure mounting within enclosures (varies by manufacturer).

Dimensions:

PCB Length: ≈ 35 mm
PCB Width: ≈ 30 mm
Height (with components): ≈ 15 mm
Weight: ≈ 8 g to 15 g

Pinout and Wiring:

V_CC: Power input pin (Connect 8 V to 35 V DC power supply).
GND: System ground connection.
V_REF: Output for the stable 5.1 V reference voltage (Use for sensor or microcontroller power).
Output A (OUTA) / Output B (OUTB): Push-pull outputs for driving external MOSFET gates.
C_T / R_T: Connections for external capacitor and resistor to set the oscillation frequency.
Shutdown (SD): Allows remote ON/OFF control; pulling low typically disables the output.
Error Amp In (+): Non-inverting input of the error amplifier.
Error Amp In (-): Inverting input of the error amplifier (Connect feedback voltage here).

Datasheet Reference:

Download SG3525 PWM Controller Datasheet

Commonly Used in:

Power Electronics Laboratories: Essential tool for experimental and educational power circuit design.
UPS Manufacturing: Used as the core control element in high-frequency uninterruptible power supplies.
Solar Inverter Systems: Regulating the DC-to-AC conversion stage for off-grid solutions.

Applications:

High-Power DC-DC Converters: Building buck, boost, and isolated flyback converters.
Pure Sine Wave and Modified Sine Wave Inverters: Generating the necessary PWM signals to control the H-bridge output stage.
Brushless DC (BLDC) Motor Control: Providing the precise gate drive signals required for motor commutation.

Equivalent Models:

TL494 PWM Controller: A popular, simpler, and slightly older alternative often used in lower-power applications.
UC384x Series: Current-mode PWM controllers, preferred for high-speed, high-efficiency topologies.
SG3524: The predecessor to the SG3525, offering similar functionality but with fewer advanced features.

Package Includes:

1 x SG3525 PWM Controller Module

Frequency Adjustable Pulse Generator Module NE555

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

Frequency Adjustable Pulse Generator Module NE555 is a versatile and compact timing solution designed to produce reliable square wave signals for various electronic control applications. Built around the industry-standard NE555 timer IC, this module allows users to generate a steady stream of pulses with adjustable frequency and duty cycle. Consequently, it serves as an excellent clock source for stepper motor drivers, PWM controllers, and DIY electronics projects. The board features multi-turn potentiometers and a frequency range jumper, which provide precise control over the output characteristics. Furthermore, its wide input voltage range ensures compatibility with both 5V and 12V logic systems. Therefore, you can easily integrate this module into your design to act as a stable signal generator without needing complex microcontroller programming.

Key Features:

Adjustable Frequency Range: The onboard 4-position jumper allows users to select between four distinct frequency bands, ranging from 1Hz to 200kHz.
Dual Potentiometer Control: Features independent trim pots to fine-tune the output frequency and the duty cycle, providing maximum flexibility for pulse-width modulation.
Visual Output Indicator: Includes an onboard LED that flashes at low frequencies, allowing you to visually verify the pulse output at a glance.
Standard NE555 Core: Utilizes the highly reliable NE555 timer chip, known for its temperature stability and robust performance in timing circuits.
Buffered Output: The module produces a clean square wave output capable of driving small loads or providing a trigger signal to power transistors and ICs.

Technical Specifications:

Input Voltage (V_CC): 5V to 15V DC
Input Current: ≥ 100 mA
Output Amplitude: 4.2V V-PP to 11.4V V-PP (Depending on input voltage)
Maximum Output Current: ≈ 15 mA (at 5V) to 35 mA (at 12V)
Frequency Bands: 1Hz–50Hz, 50Hz–1kHz, 1kHz–10kHz, 10kHz–200kHz
Duty Cycle Adjustment: 50% to 100% (Adjustable)

Mechanical Specifications:

PCB Material: High-quality FR4 Glass Fiber
Mounting Holes: 4 x 3 mm diameter holes for secure chassis mounting
Connector Type: 3-pin male header (GND, OUT, VCC)
Potentiometer Type: Multi-turn precision cermet trim pots

Dimensions:

Board Length: ≈ 31 mm
Board Width: ≈ 22 mm
Total Height: ≈ 15 mm
Weight: ≈ 7 g

Pinout and Wiring:

Pin 1 (GND): Connect this pin to the negative terminal of your power supply.
Pin 2 (OUT): The square wave pulse output pin. Connect this to your load or oscilloscope.
Pin 3 (VCC): Power input pin. Connect to a DC source between 5V and 15V.
Note: However, ensure the input voltage does not exceed 15V to prevent damaging the NE555 IC.

Datasheet Reference:

Download TI NE555 Timer IC Datasheet

Commonly Used in:

Stepper Motor Controllers: Providing the step pulses required to drive motor drivers like the A4988 or DRV8825.
LED Dimming Circuits: Acting as a PWM source to control the brightness of DC LED strips.
Audio Tone Generators: Creating basic audible square waves for testing speakers or buzzers.

Applications:

Clock Signal Generation: Providing a consistent clock pulse for digital logic gates and counters.
DC Motor Speed Control: Serving as the base signal for PWM speed controllers when paired with a power MOSFET.
Circuit Testing: Troubleshooting digital circuits by injecting a known pulse frequency into signal paths.

Equivalent Models:

XY-LPWM Module: A digital alternative featuring an LCD screen for frequency readout, however, it is more complex than the analog NE555 version.
AD9833 DDS Module: A programmable waveform generator, although it requires a microcontroller for operation.
LM358 PWM Module: Uses an op-amp for pulse generation, often providing a different duty cycle range.

Package Includes:

1 x Frequency Adjustable Pulse Generator Module NE555

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