XY-PWM1 Signal Generator Module

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)