Voltage adjustable drive in AC power source of sine wave
An AC power supply, sine wave technology, applied in the direction of AC power input conversion to AC power output, AC power input conversion to DC power output, electrical components, etc. problem, to achieve the effect of good dynamic stability, simple circuit structure, and improved application efficiency
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Embodiment 1
[0024] Such as figure 1 As shown, the sine wave AC power voltage regulation driver of the present invention includes a voltage regulation / commutation circuit 1, a filter / voltage regulation output circuit 2, a freewheeling / reverse suppression circuit 3, a photoelectric coupling circuit 4, and a voltage regulation control chip 5. The voltage regulation control chip 5 is connected to the control terminal of the voltage regulation / commutation circuit 1 through the photoelectric coupling circuit 4, the output of the voltage regulation / commutation circuit 1 is connected to the input terminal of the filter / voltage regulation output circuit 2, and the filter / voltage regulation output circuit One of the outputs of 2 is connected to the power supply input terminal of the voltage regulation / reversing circuit 1, the other is connected to the input terminal of the freewheeling / reverse suppression circuit 3, and the output of the freewheeling / reverse suppression circuit 3 is connected to the...
Embodiment 2
[0036] Such as image 3 As shown, it gives the figure 1 Another specific embodiment of the electrical principle block diagram shown in .
[0037] Among them: the voltage regulation / commutation circuit 1 in the electrical principle block diagram is composed of switch tubes Q1'-Q5' and inductor L1', and its freewheeling input terminal is drawn from the source of the switch tube Q1' to connect to the freewheeling / reverse suppression circuit 3's output terminal, its power supply input terminal is drawn from the drain of Q1', and connected to the two ends L-IN and N-IN of the mains power supply through the bridge rectifier block D1'-D4', and its control terminal is connected from the switch tube Q1 The grid of '-Q5' is drawn out, and connected to the voltage regulation control chip 5 through respective resistance networks and photoelectric coupling circuits 4 (this chip can be made by writing specific software into existing integrated circuits, and the realization of this chip fun...
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