Biopotential amplifier and physiological signal measuring system

A biopotential, amplifier technology, applied in the direction of amplification control, electrical components, gain control, etc., can solve the problem of low amplification performance of physiological signal amplifiers

Active Publication Date: 2021-04-13
SHENZHEN POWER SUPPLY BUREAU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]In traditional technology, the amplification performance of physiological signal amplifier is low

Method used

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  • Biopotential amplifier and physiological signal measuring system
  • Biopotential amplifier and physiological signal measuring system
  • Biopotential amplifier and physiological signal measuring system

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Embodiment Construction

[0046] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0047] The technical solution of the present application and how the technical solution of the present application solves the technical problem will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or ...

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Abstract

The invention relates to a biopotential amplifier and a physiological signal measuring system. The biopotential amplifier comprises an open-loop amplifying circuit and a closed-loop amplifying circuit. The input end of the open-loop amplifying circuit is used for receiving biopotential to be amplified, and the output end of the open-loop amplifying circuit is connected with the input end of the closed-loop amplifying circuit; the open-loop amplifying circuit is used for amplifying the biopotential to be amplified to obtain amplified biopotential; and the closed-loop amplifying circuit is used for amplifying the amplified biopotential and correcting the gain of the closed-loop amplifying circuit through feedback. According to the biopotential amplifier provided by the invention, the biopotential to be amplified is amplified through the open-loop amplifying circuit and the closed-loop amplifying circuit, and the closed-loop amplifying circuit corrects the gain of the closed-loop amplifying circuit through feedback, thus, the biopotential amplifier maintains stable output biopotential through constant stable gain to expand the linear output range, and the amplification performance of the biopotential amplifier can be improved.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a biological potential amplifier and a physiological signal measurement system. Background technique [0002] Currently, the market demand for physiological measurement systems such as electrocardiogram measurement systems, electroencephalographs, and blood pressure measurement systems is increasing due to the diversified needs for high-quality medical technology. The core component in the physiological measurement system is the physiological signal amplifier, and the performance of the physiological signal amplifier determines the performance of the entire measurement system. [0003] In the traditional technology, the amplification performance of the physiological signal amplifier is low. Contents of the invention [0004] Based on this, it is necessary to provide a biopotential amplifier and a physiological signal measurement system for the above technical probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03G3/30
CPCH03G3/30
Inventor 田杰
Owner SHENZHEN POWER SUPPLY BUREAU
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