Soft starting switch circuit and electronic apparatus
A soft-start switch and circuit technology, applied in the direction of output power conversion devices, electrical components, etc., can solve the problem of surge current without discussing the circuit structure, and achieve the effect of reducing the surge current and reducing the generation
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[0072] To improve as figure 1 The traditional soft-start switching circuit 1 shown in the figure is activated for the second time, that is, the input voltage V in When changing from a low potential to a high potential for the second time, the capacitor C cannot discharge electric energy at the moment of the previous step-down and cannot continue to be charged again, so the first transistor Q 1 will be fully turned on immediately, causing the output current I Q1 for an excessive instantaneous current. In other words, the surge current cannot be effectively suppressed after the traditional soft-start switch circuit 1 is started for the second time. The technical solution for effectively suppressing the surge current provided by the embodiments of the present invention will be further described below.
[0073] First, please refer to image 3 , image 3 It is the circuit diagram of the soft start switch circuit of the embodiment of the present invention. The soft start switc...
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