Overcurrent safety construction for a printed circuit board

Details Overcurrent safety construction for a printed circuit board Overcurrent safety construction for a printed circuit board

1980-09-16

1983-04-05

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Circuit interruption by thermal sensing

361400, 29577C, 29623, 29829, 29846, 337290, 337295, 337297, H02H 720

Patent

active

043793185

ABSTRACT:
In a printed circuit board, a safety means is provided to prevent the circuit elements such as semiconductor devices, resistors, and the like from suffering damage due to overcurrent flow. The safety means thus improved has a narrow gap provided within a metal foil pattern on the surface of the printed circuit board and a low-melting point metal such as solder bridges this gap to connect the metal foil.

REFERENCES:
patent: 3646666 (1972-03-01), Boleky et al.
patent: 3699403 (1972-10-01), Boleky
patent: 3967161 (1976-06-01), Lichtblau
patent: 4140988 (1979-02-01), Oakes
patent: 4272753 (1981-06-01), Nicolay
patent: 4296398 (1981-10-01), McGalliard
I.B.M. Tech. Disclosure Bulletin, vol. 19, No. 5, Oct. 1976, "Protection of Printed-Circuit Cards" by Hammer et al.

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