Excitation type drain electrode driving system for blue light LED lamp
A LED lamp and drain-driven technology, applied in the direction of light source, electric light source, lamp circuit layout, etc., can solve the problems of shortened start-up time, long start-up time, and large current noise, so as to avoid external electromagnetic interference, reduce current noise, The effect of reduced interference
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[0016] Such as figure 1 As shown, the present invention mainly includes five parts: a voltage divider switch circuit, a control switch circuit, a nonlinear trigger circuit, a power amplifier circuit and a beam-excited logic amplifier circuit.
[0017] Among them, the power amplifier circuit is used to amplify the trigger signal generated by the non-linear trigger circuit. The power amplifier circuit is realized by three-stage power amplifier, which consists of power amplifier P1, power amplifier P2, power amplifier P3, resistor R9, and capacitor C2. , Resistor R10, capacitor C3, resistor R11, resistor R12, resistor R14, resistor R13 and capacitor C4. When connected, the resistor R9 and the capacitor C2 are connected in series between the output terminal of the power amplifier P1 and the negative input terminal, the resistor R10 and the capacitor C3 are connected in series between the output terminal of the power amplifier P2 and the positive input terminal, and the resistor R1...
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