Over-voltage protection circuit structure and method thereof

Details Over-voltage protection circuit structure and method thereof Over-voltage protection circuit structure and method thereof

2008-05-23

2011-10-11

Fureman, Jared (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S042000

Reexamination Certificate

active

08035940

ABSTRACT:
An over-voltage protection circuit structure for protecting a high power translation circuit is provided. The over-voltage protection circuit structure receives an alternating current input and comprises a relay circuit, a voltage detection module, and an energy supply circuit. The relay circuit relays the alternating current input to the high power translation circuit. The energy supply circuit provides power to the voltage detection module in response to the alternating current input. The voltage detection module detects a voltage value of the alternating current input continuously. When the voltage value is greater than or equal to a first reference value, the voltage detection module generates an over-voltage signal. The relay circuit opens to cease delivering the alternating current input into the high power circuit in response to the over-voltage signal, thus the purpose of protecting the high power circuit is achieved.

REFERENCES:
patent: 7489120 (2009-02-01), Matthews
patent: 2008/0247105 (2008-10-01), Divan
patent: 1728490 (2006-02-01), None
Chinese Office Action dated Jul. 12, 2010 (6 pages).

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