基于TVS和电容的浪涌保护电路

Surge Protection Circuit Based on TVS and Capacitor

摘要: 在电源供电系统中，浪涌的产生会对电子元器件造成不可逆的损害。电源开断瞬息产生的强力尖峰脉冲会对集成电路进行浪涌冲击。本文就浪涌电压冲击对电路造成的损害，通过理论和实验分析了TVS实际选型问题，并对比分析了TVS电路和电容电路对浪涌冲击带来的失效问题的抑制能力，在此基础上提出了基于TVS和电容的浪涌保护电路方案。

Abstract: In the power supply system, the generation of surge will cause irreversible damage to electronic components. The strong spike pulse produced by the instant of power supply disconnection will cause surge impact to the integrated circuit. In this paper, based on the damage caused by surge voltage shock to the circuit, the actual TVS selection problem is analyzed through theory and experiment, and the suppression ability of TVS and capacitor circuit to the failure problem caused by surge shock is compared and analyzed. On this basis, the surge protection circuit scheme based on TVS and capacitor is proposed.