PWM LED Driver by Green Dragon

The Green Dragon variable duty cycle PWM LED driver PCB based on the 555 timer IC invented in 1971 and still in production today.

Schematic

PWM LED Driver Schematic
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PWM LED Driver Component Datasheets

PCB

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Variable Duty Cycle PWM LED Driver Theory of operation

Variable duty cycle PWM Dimmer theory of operation.
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It’s Tiny!

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