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Integrated operation and discharge flat window expansion device based on variable asymmetric power supply mechanism

A technology that integrates operational amplifiers and power supply mechanisms. It is used in improving amplifiers to expand bandwidth, high-efficiency power electronic conversion, and amplifier combination. It can solve the problems of not wide output range, fixed input and output level windows, and narrow application range.

Active Publication Date: 2021-09-14
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] The purpose of the present invention is to provide an integrated op amp level window expansion device based on a variable asymmetric power supply mechanism to solve the problem that the input and output level windows of the current integrated op amp are relatively fixed and the output range is generally not wide, resulting in a narrow application range. The problem

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  • Integrated operation and discharge flat window expansion device based on variable asymmetric power supply mechanism
  • Integrated operation and discharge flat window expansion device based on variable asymmetric power supply mechanism
  • Integrated operation and discharge flat window expansion device based on variable asymmetric power supply mechanism

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention. It should be noted that in the following description, when detailed descriptions of known functions and designs may dilute the main content of the present invention, these descriptions will be omitted here.

[0019] figure 1 It is a schematic diagram of the relationship between the input and output level window and the power supply. in:

[0020] The maximum output signal value = power supply 1 - output voltage margin

[0021] The minimum output signal value = power supply 2 + output voltage margin

[0022] The input level window at this time is:

[0023] Maximum input signal value = power supply 1 - input voltage margin

[0024] Minimum input signal value = power supply 2 + input voltage margin

[0025] In the prior art, the level window of the integrated op amp is calcula...

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Abstract

The invention belongs to the field of integrated operational amplifier circuits, and particularly relates to an integrated operational discharge flat window expansion device based on a variable asymmetric power supply mechanism. In the invention, the control unit is connected with the dual-channel digital-to-analog converter, and the output of the dual-channel digital-to-analog converter is controlled by the control unit, so that the two voltages are mutually independent, the independent control of the positive and negative power supplies of the integrated operational amplifier is realized, and the voltage of each power supply can be adjusted more conveniently. After the voltage output by the dual-channel digital-to-analog converter is conditioned by the voltage amplifier and the push-pull circuit, the voltage range of the positive power supply and the negative power supply of the integrated operational amplifier is widened, the driving capability of the power supply is enhanced, the output range of the level window is improved, and the application range of the level window is further widened. Compared with the prior art, the integrated operational amplifier circuit has the advantages of being simple in structure, convenient to control, low in cost and the like, the bandwidth and the output power capacity of the integrated operational amplifier circuit can be kept to the maximum extent, and the application range of the integrated operational amplifier circuit can be widened.

Description

technical field [0001] The invention belongs to the field of integrated operational amplifier circuits, and in particular relates to an integrated operational amplifier level window expansion device based on a variable asymmetric power supply mechanism. Background technique [0002] In recent years, the integrated circuit industry has gradually become a strategic, basic and leading industry for social and economic development. As one of the most basic and widely used devices in integrated circuits, integrated operational amplifiers have been widely used in people's production and life: in terms of military products, integrated operational amplifiers have small size, light weight, low power consumption, and work Reliable and other characteristics, it has been favored by modern weapon systems; as a typical military-civilian product, integrated transport is an indispensable component in the fields of civilian consumer goods, mechanical control, mechatronics, instrumentation, an...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/42H03F3/68
CPCH03F1/42H03F3/68Y02B70/10
Inventor 孔德轩付在明刘航麟刘科吴中
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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