| 摘要 |
An inrush current control circuit selectively short-circuit bypasses an inrush current limiting resistor (R1) of a power supply that includes a switching transistor (Q1) having a control terminal (gate or base) driven in dependence on a pulse width modulated (PWM) drive signal. The inrush current control circuit includes a bypass transistor (Q3), a first resistor (R3), a capacitor (C2), a second resistor (R2) and a diode (D3), wherein an anode terminal of the diode (D3) is connected to one of the terminals of the switching transistor (Q1) of the power supply.
|
