XY-PWM 1-Channel 1Hz-150KHz PWM Pulse Frequency LCD Display Signal Generator

SKU: 1941150

3.41 3.41 Piece 3.41 USD

¥ 24.00

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  • With outer casing

  • LCD high definition display

  • Support UART

  • Support frequency adjustment

  • Support duty cycle adjustment

  • High precision detection

  • Support power-down memory function

  • 1-Channel PWM output

  • Dual Work Mode

  • Knob supports lock function to avoid misoperation

  • Support enable output


  • Model: XY-KPWM;

  • Work Voltage:DC 3.3V-30V;

  • Frequency range(Normal mode):1Hz~150KHz;

  • Frequency range(Precise mode):1Hz~15KHz;

  • Frequency accuracy:2%;

  • Duty cycle accuracy:1% at Normal mode;

  • Duty cycle accuracy:0.1% at Precise mode;

  • Duty cycle range:0.00%-100%;

  • Output Current:About 5-30mA;

  • Output amplitude:Same to input voltage;

  • Work Temperature:-40℃~85℃;

  • Work Humidity:0%~95%RH;

  • Size:79*43*37mm;

Frequency Set Range:

  • There is two work mode so it have two frequency range.

  • Normal mode:Frequency range 1Hz~150KHz.Duty cycle range 000%-100%.Duty cycle accuracy 1%.

  • Precise mode:Frequency range 1Hz~15KHz.Duty cycle range 0.00%-100%.Duty cycle accuracy 0.1%.

  • Enter the settings interface when short press rotary switch in the normal running status to select frequency range.Rotary potentiometer to set frequency value.

  • Keep press rotary switch for 10second to switch Normal mode and Precise mode.

  • Keep press for 5second to locking parameters to protect the parameters from being modified.

  • Pay attention to the position where the decimal point moves when rotary potentiometer..

  • Display 'XXX'.No decimal point,The minimum frequency is 1Hz.The frequency range is 1Hz ~ 999Hz.

  • Display 'X.XX'.The decimal point is the penultimate, The minimum frequency is 0.01KHz.The frequency range is 1.00KHz ~ 9.99KHz.

  • Display 'XX.X'.The decimal point is the third last,The minimum frequency is 0.1KHz.The frequency range is 10.0KHz ~ 99.9KHz.

  • Display 'X.X.X'.The decimal point is fully lit,The minimum frequency is 1KHz.The frequency range is 1KHz ~ 150KHz.

  • For example: Display '100' means PWM output frequency is 100Hz; Display '1.91' means PWM output frequency is 1.91KHz; Display '52.1' means PWM output frequency is 52.1KHz; Display '1.3.4' means PWM output frequency is 134KHz; Duty cycle set range: Short press potentiometer to select set duty cycle and rotary potentiometer to set duty cycle value.

Use Steps:

  • Connect to power supply;

  • Press rotary switch for 10second to switch Normal mode and Precise mode;

  • Short press rotary switch to set frequency and change value by rotating switch;

  • Press rotary switch for 2second to set duty cycle;

  • Keep press for 5second to lock set parameters;

  • Test;

  • Press button 'ON/OFF' to turn on or off PWM output;

  • Remove power and connect load to use module.

Application: Square wave signal generator, generating square wave signal for experimental development; Used to generate a square wave signal that controls the motor driver; Generate adjustable pulses for use by the MCU; Dimmer; Speed governor.