Electronic products with improved surge protecting circuit

Details Electronic products with improved surge protecting circuit Electronic products with improved surge protecting circuit

1997-11-26

1999-04-06

Hecker, Stuart N.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

361 40, 361126, H02H 710, H02H 100

Patent

active

058926690

ABSTRACT:
An improved surge protecting circuit which can protect the power source and the internal and external circuit elements of an electronic product by absorbing external surges through ground. The protecting circuit according to the present invention is connected between an AC input terminal and an AC ground pattern. The protecting circuit includes surge absorption patterns having an arc discharge gap of preferably 0.25 mm, which is less than a specified safety distance, which is typically 5 mm, so as to absorb the external surges transmitted through the terminal to the AC ground pattern and a varistor connected between the surge absorption patterns and the AC ground patterns.

REFERENCES:
patent: 509783 (1893-11-01), Wurts
patent: 1865273 (1932-06-01), Palueff
patent: 2087340 (1937-07-01), Davis
patent: 4689713 (1987-08-01), Hourtane et al.
patent: 4743997 (1988-05-01), Carpenter, Jr.
patent: 5198791 (1993-03-01), Shibayama et al.
patent: 5317469 (1994-05-01), Lu
patent: 5555150 (1996-09-01), Newman, Jr.

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