Hello everyone,
I need to control high power leds: 350mA
I need to make them blink at a frequency of 20Hz and a duty cycle of 50%. To do this, I decided to control the 3 PWM inputs of the driver with GPIOs from an arduino.
The driver is supplied with 12V and the GPIOs of the arduino with 5V.
-> Is this a problem ?
The goal is to control the gate of the transistor with the PWM signal in order to control the LED.
-> Is my schema good ?
The problem is that I did some tests and it turns out that on the Gate of the transistor I find 12V permanently without even that the PWM is activated ... and when it is activated, the signal on the gate remains at 12V without varying.
Thank you for your help,
Best regards,