Power latch circuit and monitoring equipment

• Main Authors: SUN XIAOWEI, LI LINGUI
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERATION; PICTORIAL COMMUNICATION, e.g. TELEVISION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model discloses a power supply latch circuit and a monitoring device, and the power supply latch circuit comprises a signal latch circuit and a power supply control circuit. According to the technical scheme of the utility model, the signal input end of the signal latch circuit is externally connected with a master control system signal, the signal latch circuit is used for negation and latch of the value of the master control system signal, and the signal input end of the power supply control circuit is connected with the signal output end of the signal latch circuit so as to receive the negation value signal. The signal output end of the power supply control circuit is externally connected with the power supply input end of the monitoring camera, the power supply control circuit outputs a high level or a low level according to a signal output by the signal output end of the signal latch circuit, so that the monitoring camera is in a starting state, and the monitoring state of the monitoring came