3-way PWM Pulse Frequency Duty Cycle Adjustable Module Square Wave Rectangular Wave Signal GeneratorItem NO.: XY-LPWM3

3-way PWM Pulse Frequency Duty Cycle Adjustable Module

Module Highlights:

1. 3-way PWM output, frequency adjustable, 3-way frequency output consistent, duty cycle adjustable independently, suitable for most occasions;

2. LCD display frequency and duty cycle, very clear and easy to adjust

3. Wide frequency range and high accuracy;

4. Capable of serial communication

Module Description:

●Three PWM outputs, wide frequency range, and independent real-time adjustment of duty cycle;

●The frequency is divided into four ranges and automatically switches:

1. XXX (without Decimal separator): the minimum unit is 1Hz, and the value range is 1Hz~999Hz;

2. X.XX (the Decimal separator is in the hundreds), the minimum unit is 0.01Khz, and the value range is 1.00Khz~9.99Khz;

3. XX. X (the Decimal separator is in the tenth place): the smallest unit is 0.1Khz; Value range: 10.0KHz~99.9KHz

4. X.X.X (the Decimal separator is in the tens and hundreds): the minimum unit is 1 Khz; Value range: 1KHz~150KHz

●Frequency display: 100 represents PWM output of 100Hz pulses;

1.01 represents a PWM output of 1.01K pulses;

54.1 represents a pulse with PWM output of 54.1KHz;

1.2.4 represents a PWM output pulse of 124KHz;

●The range of duty cycle values: 0-100%, where 100% is represented by A0%.

●All set parameters, save after power failure.

Parameter Settings:

●The module has 8 independent buttons for setting frequency and duty cycle, and supports short pressing (increasing or decreasing by one unit) and long pressing (quickly increasing or decreasing). It is very simple, and the parameters are automatically saved after setting, without loss upon power failure.

●Three duty cycle buttons can be pressed simultaneously for real-time adjustment. The LCD displays the duty cycle of the last pressed button, which has strong real-time performance and can be used for simple duty cycle scanning.

Module Parameters:

1. Working voltage: 3.3-30V;

2. Frequency range: 1Hz~150KHz;

3. Frequency accuracy: The accuracy in each range is about 2%;

4. Signal load capacity: The output current can be around 5-30ma;

5. Output amplitude: The PWM amplitude is equal to the power supply voltage;

6. Environmental temperature: -20~+70 ℃.

Applicable Scope:

1. Used as a square wave signal generator to generate square wave signals for experimental development;

2. Used to generate square wave signals for controlling motor drivers;

3. Generate adjustable pulses for MCU use;

4. Generate adjustable pulses and control related circuits (such as PWM dimming speed control applications).