Bridge type LC (inductance capacitance) resonance circuit with overcurrent protection function

A resonant circuit and overcurrent protection technology, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve the problems of common and affecting circuit safety, etc., and achieve the effect of simple and clear principle, convenient application, and device solution
CN102709884AActive Publication Date: 2012-10-03SHENZHEN LONGOOD INTELLIGENT ELECTRIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN LONGOOD INTELLIGENT ELECTRIC
Publication Date
2012-10-03

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Abstract

The invention provides a bridge type LC (inductance capacitance) resonance circuit with an overcurrent protection function. The bridge type LC resonance circuit comprises a switch circuit unit, a resonance circuit unit and an overcurrent protection unit, wherein the switch circuit unit is used for controlling the on-off state of driving signals of external loads, the resonance circuit unit is connected with the switch circuit unit and is used for generating high voltage, the overcurrent protection unit is connected with the switch circuit unit and the resonance circuit unit and is used for sampling current output by the switch circuit unit, and the switch circuit unit is forcibly switched off when the current is excessive. The bridge type LC resonance circuit with the overcurrent protection function is implemented in a zero-current switch-on mode, the circuit is protected, and simplicity and convenience are realized.
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Description

technical field

[0001] The invention relates to the field of circuit protection, in particular to a bridge-type LC resonant circuit with an overcurrent protection function. Background technique

[0002] In a circuit containing capacitance and inductance, if the capacitance and inductance are connected in parallel, it may appear in a small period of time: the voltage of the capacitance gradually increases, while the current gradually decreases; at the same time, the current of the inductance gradually increases, The voltage across the inductor decreases gradually. And in another small period of time: the voltage of the capacitor gradually decreases, while the current gradually increases; at the same time, the current of the inductor gradually decreases, and the voltage of the inductor gradually increases. The increase of the voltage can reach a positive maximum value, and the decrease of the voltage can also reach a negative maximum value. The direction of the current will a...

Claims

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