Check patentability & draft patents in minutes with Patsnap Eureka AI!

Power supply control circuit for microprocessor

A technology of power supply control circuit and microprocessor, applied in the direction of data processing power supply, electronic switch, electrical components, etc., can solve the problems of peripheral circuit malfunction and so on

Inactive Publication Date: 2007-07-25
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Usually, the power supply provides the core voltage and input / output voltage for the microprocessor at the same time, but the microprocessor supplies the input / output voltage before the start-up operation is completed, which may easily cause the peripheral circuit connected to the input / output interface of the microprocessor to malfunction.

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 control circuit for microprocessor
  • Power supply control circuit for microprocessor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Please refer to FIG. 1 , which is a connection block diagram of a preferred embodiment of a microprocessor power supply control circuit in a power supply system according to the present invention.

[0012] A microprocessor power supply control circuit 100, which includes a voltage divider circuit 10, a detection and determination circuit 20, and a switch circuit 30; a first voltage V1 is simultaneously connected to a microprocessor 40 and the voltage divider circuit 10, the The switch circuit 30 is connected between a second voltage V2 and the microprocessor 40, the detection and determination circuit 20 is connected between the voltage dividing circuit 10 and the switch circuit 30, and the second voltage V2 is connected into the detection and determination circuit 20; the voltage divider circuit 10 provides a detection voltage for the detection and determination circuit 20, and the detection voltage increases with time, and when it reaches the conduction voltage of the ...

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

A power supply control circuit of microprocessor is prepared for arranging switch loop between the second voltage and microprocessor and detection / judgment loop between voltage-dividing loop and switch loop, connecting the second voltage to detection / judgment loop, providing a detection voltage by voltage-dividing loop, judging and controlling switch loop by detection / judgment loop through said detection voltage for controlling on / off state of line between the second voltage to said microprocessor.

Description

【Technical field】 [0001] The invention relates to a microprocessor power supply control circuit. 【technical background】 [0002] The operating voltage provided by the power supply for the microprocessor can generally be divided into the core voltage of the microprocessor and the input / output voltage. The core voltage refers to the voltage for driving the microprocessor core chip, and the input / output voltage refers to the voltage for driving the input / output circuit. Usually the core voltage of the processor is less than or equal to the input / output voltage. [0003] Usually, the power supply provides the core voltage and input / output voltage for the microprocessor at the same time, but the microprocessor supplies the input / output voltage before the start-up operation is completed, which may easily cause the peripheral circuit connected to the input / output interface of the microprocessor to malfunction. . [0004] In order to avoid the above-mentioned malfunction, it is n...

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): G06F1/26
CPCG06F1/26H03K17/22
Inventor 郭恒祯
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com