Multi-purpose adjustable DC-DC power supply

Abstract

The invention discloses a multi-purpose adjustable DC-DC power supply which comprises a direct current power supply, a power adjustment circuit which is connected with the direct current power supply, a controller used for controlling the power adjustment circuit and a control parameter adjustment circuit which is connected with the controller, wherein the power adjustment circuit comprises two field effect tubes Q1 and Q2, a transformer B1 and a plurality of rectifying, filtering and voltage stabilizing modules, wherein the plurality of rectifying, filtering and voltage stabilizing modules are respectively connected with a plurality of secondary side coils of the transformer B1, gates of field effect tubes Q1 and Q2 are respectively connected with two output ends of the controller, a source electrode of the field effect tube Q1 is connected with a drain electrode of the field effect tube Q2, a drain electrode of the field effect tube Q1 and a source electrode of the field effect tube Q2 are connected with both ends of a primary side coil of the transformer B1, and the power supply end of the direct current power supply is respectively connected with a tap arranged at the middle part of the primary side coil and the source electrode of the field effect tube Q1 or the drain electrode of the field effect tube Q2. The invention has the advantages of reasonable design, low cost, little volume, convenience of carrying, convenience of operation and good use effect and can efficiently solve the multi-purpose power use needs of an ordinary enterprise and a house.

Description

technical field [0001] The invention relates to a DC-DC power supply, in particular to a multi-purpose adjustable DC-DC power supply. Background technique [0002] At present, there are more and more small electrical appliances used in enterprises, families, and stores, such as cameras, mobile phones, MP4, MP5, electric bicycles, electric tricycles, electric massagers, etc. In actual use, the above small appliances require various power supply. However, the DC-DC power supply currently used in the market is single and limited in power, so the application is very inconvenient. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a multi-purpose adjustable DC-DC power supply, which is reasonable in design, low in cost, small in size, light in portability, easy to use and easy to use, and good in use effect. Strong voltage stabilization capability, large voltage adjustment range, and accurate output voltage value can e...

AI Technical Summary

Problems solved by technology

However, the DC-DC power supplies used in the market today are single and limited in power, so the application is very inconvenient

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