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![transformer - Can someone explain this schematic and how to modify it to add PWM LED dimming? - Electrical Engineering Stack Exchange transformer - Can someone explain this schematic and how to modify it to add PWM LED dimming? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/cFSpQ.png)
transformer - Can someone explain this schematic and how to modify it to add PWM LED dimming? - Electrical Engineering Stack Exchange
![transformer - Can someone explain this schematic and how to modify it to add PWM LED dimming? - Electrical Engineering Stack Exchange transformer - Can someone explain this schematic and how to modify it to add PWM LED dimming? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/JpZB4.png)