Inrush current limiter
An inrush current and limiter technology, applied in electrical components, circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve the problem that the thermistor cannot simultaneously reduce the inrush current, increase, cannot Satisfaction etc.
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[0021] The basic circuit diagrams of the high-voltage side inrush current limiter and the low-voltage side inrush current limiter disclosed in the present invention are shown in Figure 2a and Figure 2b , the current limiting resistor R L Connected to an N-channel metal-oxide-semiconductor field-effect transistor (NMOSFET) M C Between the receiving end (drain) and the discharging end (source), the gate driver 100 is connected to M C between the gate and source. The gate driver consists of a transistor Q connected to the M C The gate and source of Q are realized by PNP bipolar transistors in the embodiment. The second capacitance C 2 The positive and negative poles of Q are connected to the emitter and collector of Q respectively. first diode D 1 The anode and cathode of the resistor are respectively connected to the base and emitter of Q, and the first resistor R 1 Connect the collector and base of Q. The first capacitance C 1 The negative pole and positive pole of ...
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