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

Gain circuit

A gain circuit and branch technology, applied in the field of signal processing, can solve problems such as broadband signal processing that cannot achieve low power consumption, and achieve the effects of simple structure, high reconfigurability, and high matching.

Inactive Publication Date: 2015-09-09
ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a gain circuit to solve the problem in the prior art that the gain circuit based on the negative feedback form of the operational amplifier resistance cannot realize low-power broadband signal processing. The technical solution is as follows:

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
  • Gain circuit
  • Gain circuit
  • Gain circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] 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.

[0036] A transconductance unit is a unit circuit that converts a voltage signal into a current signal, please refer to image 3 , is a schematic diagram of the transconductance unit, specifically, image 3 (a) is a single-ended transconductance unit, and the single-ended transconductance unit includes an input terminal and an output terminal, image 3 (b) is a differential transconductance unit, and the differential transconductance unit includes a non-invert...

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 application provides a gain circuit, comprising a voltage conversion unit, a current conversion unit connected with the voltage conversion unit; wherein the voltage conversion circuit comprises N input trans-conductance units, and the open loops of N input trans-conductance units are applied, and N is any arbitrary integer which is more than or equal to one; the current conversion unit comprises M output trans-conductance units, which are connected to form an active positive impedance shape, and M is any arbitrary integer which is more than or equal to one; the voltage conversion unit is used for converting an input voltage signal of the gain circuit into a current signal by using N input trans-conductance units; the current conversion unit is used for using the M output trans-conductance units as the load of the voltage conversion unit and converting the current signal into the voltage signal to be used as output of the gain circuit.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a gain circuit. Background technique [0002] Gain circuits are widely used in electronic and electrical equipment. The gain circuits are used to appropriately amplify or attenuate signals so that subsequent circuits can achieve effective signal processing. In the application where the signal size changes instantaneously, the gain of the gain circuit is also required to be variable, so as to realize the tracking of the different size of the signal and set an appropriate gain value. [0003] Conventional gain circuits are usually implemented using closed-loop applications of operational amplifiers, such as figure 1 As shown, the input and output of the operational amplifier are voltage signals, and its gain is the ratio of the output voltage to the input voltage. The DC voltage gain of the ideal operational amplifier is infinite, and the unity gain bandwidth is fixed. ...

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): H03G3/20
Inventor 李文冠胡胜发
Owner ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD