Capacitor step-down driver LED circuit 1
Source: InternetPublisher:小胖友 Updated: 2018/02/25
In the circuit, the thyristor SCR and R3 form a protection circuit. When the current flowing through the LED is greater than the set value, the SCR conducts at a certain angle, thereby shunting the circuit current and making the LED work in a constant current state, thus preventing the LED from Damaged due to momentary high voltage.
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