Optical fiber isolating multi-tube serial high-voltage amplifier and application method thereof

Abstract

The invention discloses an optical fiber isolating multi-tube serial high-voltage amplifier and an application method thereof, and belongs to the technical field of material high voltage testing. The optical fiber isolating multi-tube serial high-voltage amplifier has the following structure that: an analog-to-digital conversion circuit is serially connected with an optical fiber transmission circuit; the optical fiber transmission circuit is connected with a first optical fiber receiving circuit through a first optical fiber and is connected with a second optical fiber receiving circuit through a second optical fiber; the first optical fiber receiving circuit, a first analog-to-digital conversion circuit, a first signal processing circuit and an upper bridge arm on a high voltage working circuit are connected in series in sequence; and the second optical fiber receiving circuit, a second analog-to-digital conversion circuit, a second signal processing circuit and a lower bridge arm on the high voltage working circuit are connected in series in sequence. The amplifier has the beneficial effects of high output voltage, wide output signal frequency, safe and reliable optical fiber isolation and small equipment size, and can be widely applied to various high voltage testing occasions of high voltage piezoelectric material testing, high voltage insulation testing, strong electric field construction and the like.

Description

technical field [0001] The invention belongs to the technical field of high-voltage testing of materials, and in particular relates to an optical fiber isolation multi-tube series high-voltage amplifier and an application method thereof. Background technique [0002] A high-voltage amplifier is a voltage amplifier that amplifies a low-voltage signal of several volts to a high-voltage signal of thousands or tens of thousands of volts. It is used in high voltage test, strong electric field test and many other occasions. [0003] In the prior art, for example, the SHVA-252NP50 high-voltage amplifier produced by Tianjin Shenghuo Technology Co., Ltd. has a peak-to-peak value of 5000V and a frequency range of 0-1000Hz. Since no optical fiber is used for signal isolation and the circuit structure is complex, N-channel mos tubes and P-channel mos tubes are required for the upper and lower bridge arms respectively, and the voltage amplitude and frequency are limited by various facto...

AI Technical Summary

Problems solved by technology

Since no optical fiber is used for signal isolation, the circuit structure is complex, and N-channel mos tubes and P-channel mos tubes are required for the upper and lower bridge arms, and the voltage amplitude and frequency are limited by various factors.

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