Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A voltage reference source and reference voltage output method

A technology of voltage reference source and reference voltage, which is applied in the electronic field, can solve the problems of inapplicability to low power supply voltage systems and inability to achieve ultra-low power consumption, and achieve the effect of ultra-low power consumption and low power supply voltage

Active Publication Date: 2020-06-26
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The supply voltage of existing voltage reference sources is usually greater than 1V, which is not suitable for low supply voltage systems, and cannot achieve ultra-low power consumption

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
  • A voltage reference source and reference voltage output method
  • A voltage reference source and reference voltage output method
  • A voltage reference source and reference voltage output method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The following will clearly and completely describe the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0045] As described in the background technology, the supply voltage of traditional voltage reference sources is usually greater than 1V, which is not suitable for low supply voltage systems, and the current consumed by traditional voltage reference sources is often at the microampere level, so traditional voltage reference sources cannot achieve Ultra-low power consumption. In addition, the traditional voltage reference source needs to use BJT devices, which leads to the f...

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 discloses a voltage reference source and a reference voltage output method. The voltage reference source comprises a voltage reference source and a current reference source, a bias current generation module and a reference voltage generation module, the bias current generation module is used for outputting bias current; the reference voltage generation module is used for generating apositive temperature coefficient voltage and a negative temperature coefficient voltage based on the bias current; reference voltage is output based on superposition of the positive temperature coefficient voltage and the negative temperature coefficient voltage; according to the voltage reference source, the current flowing through the positive temperature coefficient voltage generation circuitis adjusted through the trimming circuit so as to adjust the temperature coefficient of the reference voltage, so that the temperature coefficient of the reference voltage is close to zero, and the voltage reference source can realize low power supply voltage and ultra-low power consumption.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a voltage reference source and a reference voltage output method. Background technique [0002] The voltage reference source is a key circuit in analog and digital-analog hybrid integrated circuits, and different applications have different requirements for its performance. The power supply voltage in portable systems is often very low, and the power consumption requirements are strict, especially when it is in standby mode, an ultra-low power consumption reference voltage is often required. [0003] The power supply voltage of the existing voltage reference sources is usually greater than 1V, which is not suitable for low power supply voltage systems, and cannot achieve ultra-low power consumption. Contents of the invention [0004] In view of this, the present invention provides a voltage reference source and a reference voltage output method, the scheme is as follows: ...

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
IPC IPC(8): G05F1/567
CPCG05F1/567
Inventor 刘飞李涵哲霍宗亮
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com