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

Embedded multiplier and operational amplifier

A technology of operational amplifiers and amplifiers, which is applied to amplifiers, amplifier combinations, parts of amplifiers, etc., and can solve problems affecting the stability of operational amplifiers and consuming static power of operational amplifiers.

Pending Publication Date: 2018-01-05
刘欣亮
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current power compensation method requires additional voltage margin, and it also consumes the static power of the operational amplifier, causing the operational amplifier to generate an offset voltage, which will still affect the stability of the operational amplifier under certain circumstances.

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
  • Embedded multiplier and operational amplifier
  • Embedded multiplier and operational amplifier
  • Embedded multiplier and operational amplifier

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0031] see figure 1 , the first embodiment of the present invention provides an operational amplifier 10 , the operational amplifier 10 includes: a first-stage amplifier 11 , a second-stage amplifier 12 and an embedded multiplier 100 . Wherein, the embedded multiplier 100 is respectively connected with the output end of the first stage amplifier 11, the input end of the second stage amplifier 12 and the output end of the second stage amplifier 12.

[0032] In this embodiment, the embedded multiplier 100 acquires the current signal output by the second-stage amplifier 12, amplifies and converts the current signal into a compensation current signal through I-V conversion and V-I conversion in sequence. Furthermore, when the embedded multiplier 100 obtains the current signal output by the first-stage amplifier 11, it forms power compensation for the current signal according to the compensation current signal, and outputs the compensated current signal to the second-stage amplifie...

no. 2 example

[0034] see figure 2 , the second embodiment of the present invention provides an embedded multiplier 100 , the embedded multiplier 100 includes: a current conversion module 110 and a current amplification module 120 . Wherein, the input end of the current conversion module 110 is connected with the output end of the second-stage amplifier 12, and the output end of the current conversion module 110 is respectively connected with the input end of the current amplification module 120 and the output end of the first-stage amplifier 11, and the current amplification module The output terminal of 120 is connected with the input terminal of the second stage amplifier 12 .

[0035]The current conversion module 110 is configured to convert the current signal output by the second-stage amplifier 12 through I-V and V-I, convert and amplify the current signal into a compensation current signal, and output the compensation current signal to the current amplification module 120 .

[0036]...

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 embodiment of the invention provides an embedded multiplier and an operational amplifier. The operational amplifier comprises a first-stage amplifier and a second-stage amplifier, and the embeddedmultiplier comprises a current conversation module and a current amplification module. The input end of the current conversation module is connected with the output end of the second-stage amplifier,the output end of the current conversation module is respectively connected with the input end of the current amplification module and the output end of the first-stage amplifier, and the output endof the current amplification module is connected with the input end of the second-stage amplifier. The embedded multiplier implements power compensation on the operational amplifier by acquiring and amplifying a current signal output by the second-stage amplifier, does not require an additional voltage margin and effectively avoids consumption on static power of the operational amplifier so as toavoid a case that the operational amplifier generates an offset voltage, thereby effectively improving working stability of the operational amplifier.

Description

technical field [0001] The invention relates to the technical field of electronic power equipment, in particular to an embedded multiplier and an operational amplifier. Background technique [0002] With the development and improvement of science and technology, electronic equipment in the field of electronic power technology has made great progress. [0003] Operational amplifiers are widely used in various electronic circuits to amplify signals in the circuits. At present, power compensation can be used to ensure the stability of the operation of the operational amplifier, for example, the classic Miller compensation. However, the currently used power compensation method requires an additional voltage margin, and it also consumes the static power of the operational amplifier, causing the operational amplifier to generate an offset voltage, which in turn affects the stability of the operational amplifier in certain cases. [0004] Therefore, how to effectively ensure the ...

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): H03F1/14H03F3/68
Inventor 刘欣亮
Owner 刘欣亮