Mcpwm Flickering

markiv
Posts: 6
Joined: Mon Sep 16, 2019 7:46 am

Mcpwm Flickering

Postby markiv » Wed Sep 18, 2019 8:07 am

I am trying to make a ac dimmer using esp32 via mcpwm .
I have used 4n35 to get zero crossing using it as sync and via phase dimmer i am able to dim the lights but there is lot of flickering .
What can i do ? any suggestion is it the fault in esp32? beacause i have tried it with Mega and its working flawless

ESP_Sprite
Posts: 2851
Joined: Thu Nov 26, 2015 4:08 am

Re: Mcpwm Flickering

Postby ESP_Sprite » Thu Sep 19, 2019 3:32 am

Have you tried looking at the signal with an oscilloscope?

WiFive
Posts: 2791
Joined: Tue Dec 01, 2015 7:35 am

Re: Mcpwm Flickering

Postby WiFive » Thu Sep 19, 2019 5:35 am


markiv
Posts: 6
Joined: Mon Sep 16, 2019 7:46 am

Re: Mcpwm Flickering

Postby markiv » Mon Sep 23, 2019 9:00 am

ESP_Sprite wrote:
Thu Sep 19, 2019 3:32 am
Have you tried looking at the signal with an oscilloscope?
no ihave not tried but i directly connected a bulb , but its flickering a lot

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