Controller Pulse Frequency Duty Cycle Adjustable 3 Button:
Specifications:
Input Voltage: DC 5V - 30V (5V Micro USB)
Output Current: <30mA
Output Amplitude: Default 5Vp-p (settable)
Frequency Accuracy: plusmn 2%
Frequency Range: 1Hz ~ 150KHz
Output Amplitude: Default 5Vp-p (settable)
Operating Temperature Range: -30 to 70 deg
Size: 45mm x 29mm
Uses:
Adjustable pulse generation for chip use;
As a square wave signal generator which generates a square wave signal;
To provide a signal to the stepping motor driver;
To produce variable pulse signal, the control-related circuit (PWM dimming, speed)
Frequency is divided into three ranges:
XXX (no decimal point): the smallest unit is 1Hz, the range 1Hz ~ 999Hz;
XX.X (decimal point in ten): The minimum unit is 0.1Khz; the range of 0.1KHz ~ 99.9KHz
X.X.X. (there are three decimal point): the smallest unit is 1Khz; the range 1KHz ~ 150KHz
Frequency display example:
"100" indicates that the PWM output pulse of 100Hz;
"54.1" indicates that the PWM output pulse of 54.1KHz;
"1.2.4." Indicates that the PWM pulse output 124KHz
Duty Cycle in the range: 0 to 100;
Three frequencies duty cycle is the same, all the parameters non-volatile.
Parameter settings:
Module has three buttons [Set], [Up], [Down];
Press [Set] key to switch the display four parameters (FR1: PWM1 frequency; dU1: PWM1 duty cycle; FR2: frequency of PWM2; dU2: PWM2 duty cycle), before the handover parameters, there will be corresponding parameter name flash.
Press [Up], [Down] keys to modify the current parameter value (long press can quickly add or subtract fast).
Two PWM each have three preset frequency, the frequency display interface, long press [SET] key to switch between three types of frequencies, three kinds of frequency duty cycle is the same value. (XXX: range 1Hz ~ 999Hz; XX.X: range 0.1Khz ~ 99.9Khz; X.X.X .: range 1Khz ~ 150Khz,).
