Pwm Generator – 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

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

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

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

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)

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

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