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

Temperature sensing device, switched capacitor device and voltage integrating circuit thereof

A technology of voltage integration and switching capacitors, which is applied in the field of switching capacitor devices and their voltage integration circuits, and temperature sensing devices, and can solve the problems of voltage integrator performance degradation and slow response time

Active Publication Date: 2017-06-13
NAN YA TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the operational amplifier OP1 does not have a high gain or the response time of the operational amplifier OP1 is very slow, the operational amplifier OP1 will have a variable voltage Voffset, and the performance of the voltage integrator will also be reduced.

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
  • Temperature sensing device, switched capacitor device and voltage integrating circuit thereof
  • Temperature sensing device, switched capacitor device and voltage integrating circuit thereof
  • Temperature sensing device, switched capacitor device and voltage integrating circuit thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] Please refer to figure 2 , figure 2 It is a circuit diagram of a voltage integration circuit 200 shown in an embodiment of the present invention. The voltage integration circuit 200 includes an operational amplifier OP1 , a capacitor C1 and a current source 210 . The operational amplifier OP1 has a non-inverting input terminal IE1 , an inverting input terminal IE2 and an output terminal OE. The output terminal OE of the operational amplifier OP1 generates the output voltage Vout, and the operational amplifier OP1 receives the reference voltage Vref through the non-inverting input terminal IE1. Current I IN Flows into the inverting input IE2 of the operational amplifier OP1, thus generating a voltage Vneg at the inverting input IE2 of the operational amplifier OP1. The operational amplifier OP1 generates an output voltage Vout at its output OE. The current source 210 is coupled to the output terminal OE of the operational amplifier OP1 and the capacitor C1, and th...

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 temperature sensing device, a switched capacitor device and a voltage integration circuit. The voltage integrator circuit includes an operational amplifier, a capacitor, and a current source. An operational amplifier has a non-inverting input, an inverting input, and an output. The output of the operational amplifier generates an output voltage and its non-inverting input receives a reference voltage. The capacitor is coupled between the output terminal and the inverting input terminal of the operational amplifier. The current source is coupled to the output terminal of the operational amplifier. The current source draws a replica current from the capacitor, and the level of the replica current is determined by the level of current flowing into the inverting input of the operational amplifier.

Description

technical field [0001] The present invention relates to a voltage integrating circuit, and more particularly to a temperature sensing device with a low gain and / or low speed operational amplifier, a switched capacitor device and a voltage integrating circuit thereof. Background technique [0002] Please refer to figure 1 , figure 1 is a circuit diagram of a conventional voltage integrator 100. The voltage integrator 100 includes a capacitor C1 and an operational amplifier OP1. The operational amplifier OP1 has a non-inverting input terminal, an inverting input terminal and an output terminal. The non-inverting input terminal of the operational amplifier receives a reference voltage Vref. The capacitor C1 is coupled between the inverting input terminal and the output terminal of the operational amplifier OP1. The inverting input of the operational amplifier OP1 receives the current I IN , and the output terminal of the operational amplifier OP1 generates an output delta...

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): G06G7/184
CPCH03F3/45475H03F2200/264H03F2203/45512G01K7/21G01K7/00H03F1/34H03F3/45071
Inventor 潘栋
Owner NAN YA TECH
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