/diy/ - Do It Yourself

Anonymous Tue Jan 19 21:14:14 2021 No.2008032 [View]
File: 453 KB, 1024x765, pwm.png [View same] [iqdb] [saucenao] [google]

LED PWM question. I'm using this driver board (3A output) with a 12V power supply:
https://www.digikey.com/short/zn29m1

It takes a PWM signal up to 20 kHz. I'm using this PWM circuit (pic related) with pot = 10k and R1/R3 = 10k:
https://www.instructables.com/Yet-Another-Simple-Pot-controlled-555-PWM-generato/

It appears not to work, and I'm back to the drawing board. Would I need anything like a MOSFET in between the 555 timer's output pin and the PWM input on the driver board?

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/diy/ - Do It Yourself

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