Patent ID: 8670251

Claim:
A regulating apparatus with soft-start and fast-shutdown function applied to a voltage-supplying apparatus, the regulating apparatus with soft-start and fast-shutdown function including: a voltage input terminal electrically connected to the voltage-supplying apparatus; a soft-start and fast-shutdown circuit electrically connected to the voltage input terminal; a first terminal electrically connected to the soft-start and fast-shutdown circuit; a regulating circuit electrically connected to the voltage input terminal, the soft-start and fast-shutdown circuit, and the first terminal; a ground circuit electrically connected to the first terminal and the voltage-supplying apparatus; and a voltage output terminal electrically connected to the regulating circuit, wherein the soft-start and fast-shutdown circuit includes: a first capacitor, one side of the first capacitor being electrically connected to the voltage input terminal; a first diode, the cathode of the first diode being electrically connected to the regulating circuit, the anode of the first diode being electrically connected to the other side of the first capacitor; a first resistor, one side of the first resistor being electrically connected to the other side of the first capacitor, the other side of the first resistor being electrically connected to the first terminal; and a first transistor switch, the first side of the first transistor switch being electrically connected to the voltage input terminal, the second side of the first transistor switch being electrically connected to the first terminal, the third side of the first transistor switch being electrically connected to the other side of the first capacitor; when voltages are supplied from the voltage-supplying apparatus to the voltage input terminal and the ground circuit, the ground circuit is connected to ground, so that the first terminal is connected to ground, and then the starting time of the regulating circuit is delayed by the soft-start and fast-shutdown circuit; when voltages are not supplied from the voltage-supplying apparatus to the voltage input terminal and the ground circuit, the ground circuit is not connected to ground, so that the first terminal is not connected to ground, and then the regulating circuit is shut down fast by the soft-start and fast-shutdown circuit.