Logic protection amplification type blue-light LED lamp protecting system
A logic protection, LED lamp technology, applied in the direction of light source, electric light source, electric lamp circuit layout, etc., can solve the problems of high energy consumption, complex structure, poor comprehensive protection, etc., to improve sensitivity and accuracy, overcome delay effect, power low consumption effect
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[0025] like figure 1 As shown, the blue LED lamp protection system of the present invention is mainly composed of a gate drive circuit, a logic control circuit, an oscillator, a power amplifier P1, a power amplifier P2, a pulse comparator U1, a pulse comparator U2, a field effect transistor MOS1, It consists of field effect transistor MOS2, field effect transistor MOS3 and field effect transistor MOS4, and a logic protection amplifier circuit connected in series between the pulse comparator U1 and the pulse comparator U2.
[0026] When connected, the output terminals of the power amplifier P1, the output terminals of the power amplifier P2, the output terminals of the pulse comparator U1 and the output terminals of the pulse comparator U2 are all connected to the logic control circuit, and the two output terminals of the oscillator are respectively It is connected with the negative input terminal of the pulse comparator U1 and the negative input terminal of the pulse comparato...
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