介绍一款结构简单、成本低廉、新颖实用的输入过压保护电路，实例和实验结果表明了该保护电路的可行性。

This paper presents a novel circuit against input over-voltage. The experiment results are in positive to the feasibility of the protection circuit.

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内部诊断提供全面的过载、输入欠压及过温保护。

Internal diagnostics provide comprehensive protection against overloads input undervoltage and overtemperature conditions.

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具有输入过压和输出过压保护电路，有效防止意外操作造成功放损坏。

Protective circuits for input overvoltage and output overvoltage effectively protect the power amplifier from damage by accidental operation.

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