Supercharge Your Innovation With Domain-Expert AI Agents!

Broken line direct-current amplifier

A technology of DC amplifiers and amplifiers, applied in DC coupled DC amplifiers, differential amplifiers, improved amplifiers to reduce temperature/power supply voltage changes, etc., can solve problems such as the temperature influence of digital amplifier circuits, and achieve the effect of increasing the magnification factor

Inactive Publication Date: 2012-08-01
武汉市康达电气有限公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the logarithmic amplification circuit is affected by temperature, and a complex temperature compensation circuit is required to improve the temperature stability of the circuit.

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
  • Broken line direct-current amplifier
  • Broken line direct-current amplifier
  • Broken line direct-current amplifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1 is the folded line amplifier of reverse input: as figure 1 As shown, it includes an operational amplifier 1, which is characterized in that it also includes an input resistor 2, a first resistor 3, and a plurality of negative feedback branches, wherein the inverting input terminal of the operational amplifier 1 is connected to the input resistor 2, and the A plurality of negative feedback branches are connected in parallel between the inverting input terminal and the output terminal of the operational amplifier 1 , and a first resistor 3 is connected between the inverting input terminal and the output terminal of the operational amplifier 1 . Each of the negative feedback branches includes a second resistor 4 and a voltage regulator tube 5, the negative pole of the voltage regulator tube 5 is connected to the inverting input terminal of the operational amplifier 1 through the second resistor 4, and the positive pole of the voltage regulator tube 5 is connect...

Embodiment 2

[0015] Embodiment 2 is a folded line amplifier with input in the same direction: as figure 2 As shown, it includes an operational amplifier 1, which is characterized in that it also includes an input resistor 2, a first resistor 3, and a plurality of negative feedback branches, wherein the inverting input terminal of the operational amplifier 1 is connected to the input resistor 2, and the A plurality of negative feedback branches are connected in parallel between the inverting input terminal and the output terminal of the operational amplifier 1 , and a first resistor 3 is connected between the inverting input terminal and the output terminal of the operational amplifier 1 . Each of the negative feedback branches includes a second resistor 4 and a voltage regulator tube 5, the negative pole of the voltage regulator tube 5 is connected to the output terminal of the operational amplifier 1, and the positive pole of the voltage regulator tube 5 is connected to the operational am...

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 a broken line direct current amplifier, which comprises an operational amplifier. The broken line direct current amplifier is characterized by further comprising an input resistor, a first resistor, a plurality of negative feedback branches, wherein an inverting input terminal of the operational amplifier is connected with the input resistor, the negative feedback branches are connected in parallel between the inverting input terminal and an output terminal of the operational amplifier, and the first resistor is connected between the inverting input terminal and the output terminal of the operational amplifier. The broken line direct current amplifier is designed to comprise the operational amplifier, the input resistor, the first resistor and the negative feedback branches, so that amplification factors of small signals can be increased while dynamic ranges of input signals are expanded, and continuous broken line voltage output signals and simulative logarithm amplified curves are obtained. The broken line direct current amplifier can be widely applied to voltage amplification, current amplification and control and driving circuits requiring continuously adjustments.

Description

technical field [0001] The invention relates to the technical field of amplifiers, in particular to a broken-line DC amplifier. Background technique [0002] The linear DC amplifier circuit based on the operational amplifier is often used in signal processing. Since the gain is fixed, the input small signal and large signal are amplified by the same factor. The output signal amplitude of the operational amplifier cannot be higher than the power supply. Affected by this, a large gain can increase the amplification factor of small signals, but the dynamic range of the input signal is limited; a small gain can increase the dynamic range of the input signal, but the amplification of small signals is limited. [0003] In order to increase the magnification of small signals and increase the dynamic range of input signals, a logarithmic amplifier circuit can be used to utilize the exponential amplification characteristics of the logarithmic amplifier circuit. When a small signal i...

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
IPC IPC(8): H03F3/45H03F1/30
Inventor 胡晓晖胡学军
Owner 武汉市康达电气有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com