CONTROL CIRCUIT AND CIRCUIT CONTROL METHOD

• Main Authors: GAO, Chunyu, XIE, Bo
• Format: Patent
• Language: English; French; German
• Published: 07.07.2021
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PERFORMING OPERATIONS; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

Embodiments of this application provide a control circuit and a circuit control method. The control circuit provided in the embodiments of this application includes a switch unit, a trigger unit, and a control unit, where the trigger unit is connected to the control unit, and the control unit is connected to the switch unit. The trigger unit is configured to: after obtaining an abrupt change of an electric signal output by a power source, control the switch unit to be closed by using the control unit, to establish continuity in a path between the power source and a load device, so that the power source supplies power to the load device, and the load device continuously outputs a level signal to the control unit after being energized, to control, by using the control unit, the switch unit to stay in a closed state. In this way, the switch unit can be automatically enabled when the power source supplies power, so that the power source automatically supplies power to the load device. In addition, rights of control over the switch unit are transferred from the trigger unit to the load device, so that the load device can control the path that supplies power to the load device.