Power supply and power supply system with multiple power supplies

Abstract

The invention discloses a power supply and a power supply system with multiple power supplies. The power supply is used for receiving an electric energy of an input voltage and generating an output voltage and an output current. The power supply comprises a power convertor, an output protecting circuit and a control unit, wherein the power convertor is used for receiving the electric energy of the input voltage and generating an inner output voltage; the output protecting circuit is connected with an output end of the power convertor and comprises a plurality of switch circuit sets in parallel connection; the output protecting circuit is used for limiting a current direction of the output current under an switch-on/off action of the switch circuit sets; the control unit is electrically connected with the output protecting circuit; and the control unit is used for outputting a plurality of control signals for respectively controlling the switch circuit sets, wherein at least two control signals are included and are used for respectively controlling at least two switch circuit sets to switch off at different moments. The power supply provided by the invention can be used for increasing power supply efficiency under the normal running of the power supply and the production cost is lower.

Description

technical field [0001] The present invention relates to a power supply, in particular to a power supply capable of improving power supply efficiency, accurately preventing reverse current and reducing production costs, and a power supply system with multiple power supplies. Background technique [0002] In recent years, with the advancement of science and technology, electronic products with various functions have been gradually developed. These electronic products with various functions not only meet the various needs of people, but also integrate into everyone's needs. Daily life makes people's life more convenient. [0003] These various electronic products with different functions are composed of various electronic components, and the power supply voltage required by each electronic component is different. Therefore, the AC power provided by today's power supply system is not suitable for directly supplying electronic products use. In order to provide an appropriate vo...

AI Technical Summary

Problems solved by technology

[0014] The main purpose of the present invention is to provide a power supply and a power supply system with multiple power supplies to solve the problem that the known power supply cannot Precisely prevent defects such as reverse current and high production cost

Images