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

Features:

• 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

Parameters:

• 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.