Unlock instant, AI-driven research and patent intelligence for your innovation.

Power supply circuit

A technology of power supply circuit and power supply, which is applied in the direction of data processing power supply, etc., and can solve the problems of mainboard failure, loss, loss of mainboard, etc.

Inactive Publication Date: 2014-12-03
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the mains power is cut off, the motherboard cannot work due to no power supply, and the data on the motherboard will be lost if it is not stored, resulting in unnecessary losses

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power supply circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

[0011] Please refer to figure 1 , the power supply circuit 100 of the present invention is arranged on a main board, connected to the output end of the power supply 1 of the main board, the power supply 1 is connected to the mains 2, and the power supply 1 is used to connect the mains 2 converted into direct current to supply power to the motherboard. A preferred embodiment of the power supply circuit 100 of the present invention includes a heat exchange controller U1, a diode D1, three field effect transistors Q1, Q2, Q3, a complex programmable logic device (Complex Programmable Logic Device, CPLD) 8, two Capacitors C1, C2 and five resistors R1-R5. In this implementation manner, the field effect transistors Q1 , Q2 and Q3 are all N-type field effect transistors.

[0012] The monitoring pin UV of the heat exchange controller U1 is connected ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a power supply circuit, which comprises a heat exchange controller, a first electronic switch, a second electronic switch, a first diode, a first resistor, a second resistor, a third resistor, a fourth resistor and a first capacitor, wherein the heat exchange controller is connected between a power supply and the first and second electronic switches, the first electronic switch is connected with the diode through the second electronic switch, and the diode is also grounded through the first capacitor. The power supply circuit can realize the power supply to a main board during the main board power failure so that the system data can be stored.

Description

technical field [0001] The invention relates to a power circuit. Background technique [0002] Existing motherboards generally have the function of self-power-off protection, that is, when information such as its own voltage and current is abnormal, the motherboard will automatically store important data in the system and disconnect the power supply to prevent data loss and protect the motherboard. However, when the mains power is cut off, the main board cannot work because there is no power supply, and the data on the main board will be lost if it is not stored, thereby causing unnecessary losses. Contents of the invention [0003] In view of the above, it is necessary to provide a power supply circuit to supply power to the mainboard to store system data when the mainboard is powered off. [0004] A power circuit, connected to the output end of the power supply of the motherboard, the power circuit includes a heat exchange controller, first and second electronic switche...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/30
Inventor 陈群博
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD