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

An analog switch circuit

A technology for simulating switching circuits and voltage generating circuits, applied in the field of semiconductor integrated circuits, can solve the problems such as the inability to completely eliminate the influence of temperature and weaken the influence of temperature.

Active Publication Date: 2022-02-01
SHANGHAI AWINIC TECH CO LTD
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, although the existing technical means can eliminate the change of the on-resistance of the analog switch caused by the transmission signal level, or can weaken the influence of some temperature, it still cannot completely eliminate the influence of temperature on the on-resistance of the analog switch.

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
  • An analog switch circuit
  • An analog switch circuit
  • An analog switch circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] refer to figure 1 , figure 1 A schematic structural diagram of an analog switch circuit provided by an embodiment of the present invention, the analog switch circuit includes: a voltage generating circuit ...

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 an analog switch circuit. The analog switch circuit includes: a voltage generating circuit and a first field effect transistor; wherein, the first end of the voltage generating circuit is connected to a voltage input end, and the voltage generating circuit The second terminal is connected to the gate of the first field effect transistor, the third terminal of the voltage generating circuit is connected to the source of the first field effect transistor, and the source of the first field effect transistor is also connected to the source of the first field effect transistor. The signal input terminal is connected, and the drain of the first field effect transistor is connected to the signal output terminal; the voltage generating circuit is used to generate a voltage that makes the first field effect transistor have a constant on-resistance. The analog switch circuit completely eliminates the influence of temperature on the on-resistance of the analog switch, can make the on-resistance of the analog switch constant, and greatly improves the performance of the analog switch circuit.

Description

technical field [0001] The present invention relates to the technical field of semiconductor integrated circuits, and more specifically, to an analog switch circuit. Background technique [0002] With the continuous development of science and technology, various electronic devices have been widely used in people's daily life, work and industry, bringing great convenience to people's life. [0003] In electronic equipment, due to the limitation of external interface resources of the equipment, data for different purposes share one interface, such as the USB interface in mobile phones, which is often used as Audio audio, USB and UART (Universal Asynchronous Receiver / Transmitter, Universal Asynchronous Receiver / Transmitter, Universal Asynchronous Receiver / Transmitter) ) and other signal transmission multiplexing interfaces, and the change of the on-resistance of the analog switch will affect the transmission quality of signals such as data transmission or audio or even video, w...

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 Patents(China)
IPC IPC(8): H03K17/14
CPCH03K17/145
Inventor 何永强罗旭程程剑涛
Owner SHANGHAI AWINIC TECH CO LTD
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