Low-power-consumption power supply control circuit based on single-chip microcomputer

• Main Author: HU YITIAN
• Format: Patent
• Language: Chinese; English
• Published: 09.06.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model discloses a low-power-consumption power supply control circuit based on a single-chip microcomputer. The low-power-consumption power supply control circuit comprises a PNP type triode, an NPN type triode, a first resistor, a second resistor, a third resistor and a voltage stabilizing circuit. The emitting electrode of the PNP type triode is connected with an external power supplythrough the first resistor, the collecting electrode of the PNP type triode is connected with the input end of the voltage stabilizing circuit, and the emitting electrode and the base electrode of the PNP type triode are connected with the two ends of the second resistor respectively; the emitting electrode of the NPN type triode is grounded, the collecting electrode of the NPN type triode is connected with the base electrode of the PNP type triode through the third resistor, and the base electrode of the NPN type triode is connected with an external control signal; the output end of the voltage stabilizing circuit i