XY-LPWM Pulse Frequency Adjustable Module

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