The present invention provides a hold-up time circuit, a hold-up time method, and a power supply system. The circuit includes an energy storage capacitor, a step-down circuit and a step-up circuit. A first input end and a second input end of the step-down ...

Embodiments of the present invention disclose a method, a device, and a system for supplying power from batteries. The method for supplying power from batteries includes: detecting a power supply state of a cycling battery in a system, where the system fir...

A control circuit for preventing a battery group (101) from being reversely connected includes a normally-open contactor (102), a first normally-open relay (103), a first diode (104), a second diode (105), a second normally-open relay (106), a third diode ...

An auxiliary power source for bi-directional power supply is disclosed by the present invention, which includes a bi-directionally isolated converter (21), a first non-isolated converter (22), a second non-isolated converter (23), a first merging circuit s...

A switch control circuit for a power supply and a power supplying circuit are provided. The switch control circuit includes: a cathode of a diode is connected with a negative electrode of the power supply, an anode of the diode is connected with a first te...

A solar light power generation system, a control device, and a control method thereof are provided. The solar light power generation system includes: a solar cell array, configured to output multiple branches of electric energy; a combination control unit,...

A method and a apparatus for controlling charging and discharging of a battery used in the base station are provided. The method includes the following steps: obtaining configuration parameters in the base station that are used for controlling the charging...