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Flicker-free LED Dimmer

Featuring constant current and high efficiency

Flicker-free LED Dimmer
At first glance, dimming LED lamps appears rather simple. Take a PWM output from any desired microcontroller, use this signal to drive a power MOSFET, and you’re done. However, in this article we take a different approach – certainly not new, but often overlooked – that gives perfect, flicker-free LED dimming with high efficiency. The circuit is built with ordinary components, which also makes it suitable for educational purposes.
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