Leakage current blocking circuit and leakage current blocking method of decoupling capacitor

Abstract

The invention discloses a leakage current blocking circuit and a leakage current blocking method of a decoupling capacitor. The first end of the decoupling capacitor is coupled with a power supply voltage, and the leakage current blocking circuit is coupled between the second end of the decoupling capacitor and a grounding voltage and comprises at least one switch. The at least one switch is used for providing a channel to couple the decoupling capacitor to a ground voltage when the decoupling capacitor is not damaged, and is closed to block a leakage current of the decoupling capacitor when the decoupling capacitor is damaged.

Description

technical field [0001] The invention relates to a leakage current blocking circuit and a leakage current blocking method, in particular to a leakage current blocking circuit and a leakage current blocking method of a decoupling capacitor. Background technique [0002] Decoupling capacitors are capacitors installed at the power supply terminals of components in a circuit, and are typically implemented with metal-oxide-semiconductor field-effect transistors (MOSFETs). However, in the case of leakage current due to damage to the decoupling capacitors, additional power losses are added. Therefore, how to provide a leakage current blocking circuit and a leakage current blocking method of a decoupling capacitor has become an important issue in the art. SUMMARY OF THE INVENTION [0003] In view of this, embodiments of the present invention provide a leakage current blocking circuit of a decoupling capacitor. The first terminal of the decoupling capacitor is coupled to the power...

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Problems solved by technology

However, in the case of leakage currents due to damage to the decoupling capacitors, additional power loss will be added

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