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

Switched capacitor circuit and compensation method thereof, and analog to digital converter

A technology for switching capacitors and capacitor banks, which is used in analog-to-digital converters, analog-to-digital conversion, code conversion, etc.

Active Publication Date: 2017-06-23
NCKU RES & DEV FOUND +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the operational amplifier 110 is not ideal, then the gain (hereinafter denoted as "A") will be finite and the voltage V X will not be 0

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
  • Switched capacitor circuit and compensation method thereof, and analog to digital converter
  • Switched capacitor circuit and compensation method thereof, and analog to digital converter
  • Switched capacitor circuit and compensation method thereof, and analog to digital converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The following is a detailed description of the embodiments in conjunction with the accompanying drawings, but the provided embodiments are not intended to limit the scope of the present invention, and the description of the structure and operation is not intended to limit the order of execution, and any recombination of components The structure of the resulting device with equal efficacy is within the scope of the present invention. In addition, the drawings are for illustration purposes only and are not drawn to original scale.

[0031] The terms "first", "second", ... etc. used herein do not specifically refer to a sequence or sequence, but are only used to distinguish elements or operations described with the same technical terms. In addition, regarding "coupled" used herein, it may mean that two elements are directly or indirectly connected. That is to say, when "the first item is coupled to the second item" is described below, other items may also be disposed betw...

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 switched capacitor circuit with feedback compensation is provided. First terminals of a feedback capacitor and at least one capacitor are coupled to a first input terminal of a differential amplifier. Second terminals of the feedback capacitor and the capacitor are coupled to an input terminal during a first period. A feedback compensation circuit amplifies a first voltage on the first input terminal of the differential amplifier by a gain greater than one to generate a second voltage. The second terminal of the feedback capacitor is coupled to the output terminal of the differential amplifier, and the feedback compensation circuit applies the second voltage to the second terminal of the capacitor during a second period.

Description

technical field [0001] The present invention relates to a switched capacitor circuit, and in particular to a switched capacitor circuit with feedback compensation, an analog-to-digital converter and a compensation method. Background technique [0002] figure 1 is a switched capacitor circuit shown according to known techniques. Please refer to figure 1 , the non-inverting input of the operational amplifier 110 is grounded. The inverting input of the operational amplifier 110 is coupled to the capacitor C F 、C S and coupled to the virtual ground CCM through the switch SW15. Capacitance C F The second terminal of is coupled to the output terminal of the operational amplifier 110 or the input voltage V in . Capacitance C S The second terminal is coupled to the input voltage V in or the reference voltage V REF . During the sampling period, the switches SW12, SW13, and SW15 are turned on, and the switches SW11, SW14 are turned off. Therefore, the input voltage V in ...

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): H03M1/06H03M1/12
CPCH03M1/06H03M1/12H03M1/164H03H19/004H03H19/006
Inventor 张顺志邵姿菁黄崇铭
Owner NCKU RES & DEV FOUND