Digital product charging alarm control circuit

Abstract

The invention discloses a digital product charging alarm control circuit. A micro-control unit receives or transmits a wireless signal through a wireless module. The micro-control unit performs alarming of a buzzer SP1 by controlling a buzzer driving circuit. The micro-control unit receives the voltage signal fed back from an external power supply and the temperature signal at the charging head ofexternal equipment through an external temperature detecting circuit and an external temperature detecting circuit. The micro-control unit detects the current and controls charging of the output portthrough a current detection and control circuit and feeds back the control signal to the micro-control unit. A power supply management IC circuit controls the external power supply circuit to supplypower to the micro-control unit and the output port by cooperating with the micro-control unit. The invention belongs to the technical field of the charging alarm control circuit. The digital productcharging alarm control circuit has the function of overcurrent, overvoltage and overt-temperature protection for the charging head.

Description

technical field [0001] The invention relates to a charging alarm control circuit, in particular to a charging alarm control circuit for digital products, belonging to the technical field of charging alarm control circuits. Background technique [0002] The charger adopts high-frequency power supply technology and uses advanced intelligent dynamic adjustment charging technology. The power frequency machine is designed based on the traditional analog circuit principle. The internal power components (such as transformers, inductors, capacitors, etc.) of the machine are relatively large. There is less noise when running with a large load, but this model has strong resistance to harsh grid environment conditions, and its reliability and stability are stronger than high-frequency machines. [0003] Nowadays, there are few protections for chargers, and digital products often have the problem of spontaneous combustion of digital products caused by overheating and overvoltage during ...

AI Technical Summary

Problems solved by technology

[0002] The charger adopts high-frequency power supply technology and uses advanced intelligent dynamic adjustment charging technology. The power frequency machine is designed based on the traditional analog circuit principle. The internal power components (such as transformers, inductors, capacitors, etc.) of the machine are relatively large. There is less noise when running with a large load, but this model has strong resistance to harsh grid environmental conditions, and its reliability and stability are stronger than high-frequency machines

[0003] Nowadays, there are few protections for chargers, and digital products often have the problem of spontaneous combustion of digital products caused by overheating and overvoltage during charging. Therefore, a circuit with charging alarm control for digital products is needed to realize charging of digital products. Protection during the process

Images