Lightning protection circuit applicable to high-voltage environment

Abstract

The invention discloses a lightning protection circuit applicable to a high-voltage environment. The source electrode and the gate electrode of a P-type field-effect transistor MOS1 (Metal Oxide Semiconductor 1)are connected and are simultaneously connected with VDD; the source electrode and the gate electrode of a P-type field-effect transistor MOS2 are connected and are simultaneously connected with the drain electrode of the P-type field-effect transistor MOS1; the drain electrode of an N-type field-effect transistor MOS3 is connected with that of the P-type field-effect transistor MOS2; the gate electrode and the source electrode of the N-type field-effect transistor MOS3 are connected and are simultaneously connected with the drain electrode of an N-type field-effect transistor MOS4; the gate electrode and the source electrode of the N-type field-effect transistor MOS4 are connected and are simultaneously grounded; the positive electrode of a voltage stabilizing diode D1 is connected with the source electrode of the N-type field-effect transistor MOS4 and the VDD; and one end of a resistor R1 is connected with the drain electrode of the P-type field-effect transistor MOS2. The lightning protection circuit is applicable to the high-voltage environment and is simple in structure.

Description

technical field [0001] The invention relates to a lightning protection circuit, in particular to a lightning protection circuit suitable for high-voltage environments. Background technique [0002] In summer, the thunderstorm season, lightning often occurs. There are lightning protection circuits in all aspects, but most of them are used in low voltage environments. However, the circuit structure of the lightning protection circuit used in the high-voltage environment is relatively complicated. Contents of the invention [0003] The invention provides a lightning protection circuit suitable for a high-voltage environment, which can be applied to a high-voltage environment, and has a simple circuit structure. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: [0005] A lightning protection circuit suitable for high-voltage environments, which includes P-type field effect transistor MOS1,...

AI Technical Summary

Problems solved by technology

However, the circuit structure of the lightning protection circuit used in the high-voltage environment is relatively complicated.

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