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An isolation circuit based on electromagnetic sensor to realize linear pulse power

An electromagnetic sensor and isolation circuit technology, applied in the direction of voltage/current isolation, etc., can solve the problems of large error and low efficiency of the measurement isolation method, and achieve the effect of increased isolation transmission frequency, precise isolation transmission, and high operating frequency

Active Publication Date: 2022-02-25
南京瑞控电气有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an isolation circuit based on an electromagnetic sensor to realize linear pulse power, so as to solve the problems of large error and low efficiency in the existing measurement isolation method

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  • An isolation circuit based on electromagnetic sensor to realize linear pulse power
  • An isolation circuit based on electromagnetic sensor to realize linear pulse power
  • An isolation circuit based on electromagnetic sensor to realize linear pulse power

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Embodiment Construction

[0023] 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.

[0024] The present invention provides such figure 1 The electromagnetic sensor shown in the figure realizes the isolation circuit of linear pulse power, including input side working voltage V1, first resistor R, input signal vi, D / A converter, electromagnetic sensor BL, isolated output side working voltage Vcc and shaper ZX, One side of the electromagnetic sensor BL inputs two circuits, wherein the left end of the upper circuit is connected to the input side o...

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Abstract

The invention discloses an isolation circuit based on an electromagnetic sensor to realize linear pulse power, including a D / A converter, an electromagnetic sensor BL for isolating and converting an input pulse waveform into a differential signal, a shaper ZX, a first resistor R1 and The second resistor R2; one end of the input side of the electromagnetic sensor BL is connected to the input side operating voltage V1 through the first resistor R1, and the other end is connected to the output of the D / A converter, and the input terminal of the D / A converter is connected to the input signal vi ; One end of the output side of the electromagnetic sensor BL is connected to the input end of the shaper ZX, and the other end is connected to the 1 / 2Vcc place; a Zener diode is connected between the 1 / 2Vcc place and the ground, and the 1 / 2Vcc place is connected to the isolated output A second resistor R2 is connected between the side working voltage Vcc. The invention reduces the error of measuring and isolating the linear pulse electric quantity signal, realizes precise isolation and transmission, and greatly improves the efficiency at the same time.

Description

technical field [0001] The invention belongs to the technical field of isolated transmission of microelectric DC signals, and in particular relates to an isolation circuit based on an electromagnetic sensor to realize linear pulse power. Background technique [0002] The current measurement isolation methods are electromagnetic transformer amplitude modulation carrier isolation and optocoupler isolation. The electromagnetic transformer amplitude modulation carrier isolation has been basically eliminated for many years. Now the optocoupler isolation is widely used. These two methods are in line with the linear accuracy requirements. High places are difficult to achieve. [0003] 1. Magnetic transformer AM carrier isolation [0004] A Magnetic transformer amplitude modulation carrier has low isolation and transmission efficiency in actual use, and the circuit is relatively complex. The magnetic field is easily affected by temperature, and the output value of the measured line...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R15/20
CPCG01R15/20
Inventor 鲁声豪鲁家银
Owner 南京瑞控电气有限公司
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