10-20-2024, 07:17 PM
(10-20-2024, 02:16 AM)admin Wrote: sorry, B16M mosfet output can't use for PWM output, because of ESP32-S3 conenct with i2c PCF8575 extender chip , then connect with 10A mosfet. Use ON/OFF is better. But B16M have free GPIOs on board, that can use for PWM output, just without driver.
if you want to use dimmer , suggest you chose KC868-AP or KC868-D16 dimmer controller.
What is the max PWM frequency usable with KC868-AP and KC868-D16? I think for KC868-AP it should be ~1.5kHz since it is the limitation of PCA9685. What about KC868-D16?
I'm using 20kHz now with a custom esp-32 based PCB with MOSFET driver IC in order to avoid any hearable humming noise from the power supply. Is there any Kincony product which can support such PWM frequency (and a couple of Amperes load)?