A charge control circuit includes a resistance module, a voltage comparing module, and a charge control module. The resistance module includes a thermistor, and the resistance of the thermistor varies according to the temperature of a battery. The voltage ...

A power source (100) includes a first power terminal (101) for outputting a first supply voltage. A power management circuit (200) includes a pulse width modulation unit (24) having an input power terminal (240), a first switch unit (22) capable of being t...

An electronic device with standby state includes a MCU, a voltage conversion unit, a screen lock circuit, and a power-saving trigger circuit. The voltage conversion unit is connected to the MCU and is used to convert a power supply voltage to a suitable vo...

A power enabling control circuit is arranged in an electronic device. The electronic device includes a processor, a power integrated circuit, and a Moving Pictures Experts Group chip. The power enabling control circuit is connected to the processor and the...

An exemplary charge indicator circuit indicates the state of charge of a battery. The charge indicator circuit includes a connection jack (10), an indicator module (30), a voltage detection module, a charger IC (60), and a path connection module (40). The ...

A discharge circuit for increasing discharge time of battery includes a discharging IC and a delay discharge circuit. When the discharging IC detects any voltage input, a minimum operating voltage of the discharging IC is set to 6.3V, when the discharging ...

A protection circuit for lithium-ion battery is provided. The protection circuit samples the voltage of the lithium-ion battery as a sample voltage and outputs the sample voltage. A switch circuit includes a first switch having two first connection termina...