User Manual

http://www.Droking.com
200393
Module Parameters:
Working Voltage: 3.3 ~ 30V
Range of Frequency: 1Hz ~ 150KHz (Normal Mode);
1Hz ~ 15KHz (Refined Mode)
Frequency Accuracy: 2% or so
Signal Carrying Capacity: 5 ~ 30mA or so (output current)
Output Amplitude: equal to power supply voltage
Environment Temperature: -20 ~ +70℃
Features:
With double mode, duty cycle will be proceeded step by 0.1%
under accurate mode.
LCD panel displays frequency and duty cycle clearly; it’s very
convenient by adopting coded potentiometer to adjust; PWM
output can individually set frequency and duty cycle.
Our PWM module is provided with locked function which can
avoid incorrect operation.
This module can set upper-lower limit of duty ratio.
The signal generator has wide frequency range and high
accuracy, besides, it has serial communication.
Set lower limit
“dn” of duty ratio
Long pressing potentiometer for 2 seconds enter into upper-lower
limit setting, and short pressing it can switch between upper limit
and lower limit, and then long pressing it for 2 seconds drop out of
the setting.
Set upper limit “up” of duty ratio
Module Information:
PWM output: can individually set frequency and duty ratio.
Normal Mode:
Frequency Range: 1HZ ~ 150KHZ, Duty Cycle: 000 ~ 100%,
Duty Cycle: Step by 1%;
Accurate Mode:
Frequency Range: 1HZ ~ 15KHZ, Duty Cycle: 00.0 ~1 00%,
Duty Cycle: Step by 0.1%;
Frequency is divided into 4 ranges which can be switched
automatically:
XXX (no decimal point): The minimum unit is 1Hz and the
range is 1Hz ~ 999Hz;
X.XX (decimal in hundreds place): The min unit is 0.01KHz
and the range is 1.00KHz ~ 9.99KHz;
XX.X (decimal in tens place): The min unit is 0.1KHz and the
range is 10.0KHz ~ 99.9KHz;
X.X.X (decimal in tens and hundreds place): The min unit is
1KHz and the range is 1KHz ~ 150KHz.