Solid state relay

Details Solid state relay Solid state relay

1998-03-18

2000-04-25

Lam, Tuan T.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

327453, H03K 1772, H03K 17725

Patent

active

060548916

ABSTRACT:
A solid state relay includes a power semiconductor controlled by a gate electrode. A current detector provides a signal which is a function of the absolute value of the current through the power semiconductor. An evaluation circuit coupled to the current detector receives the current signal. The current detector may include a ferromagnetic core surrounding a conductor coupled to the power semiconductor, a coil wound around the core, and an oscillator generating a carrier signal and a detection circuit, both coupled to the core. The current detector is used to control latching of the relay and to generate status signals if predetermined parameters are exceeded.

REFERENCES:
patent: 4016391 (1977-04-01), Kiuchi et al.
patent: 4129818 (1978-12-01), Goto et al.
patent: 4145592 (1979-03-01), Mizukawa et al.
patent: 4529931 (1985-07-01), Kuhns
patent: 4876468 (1989-10-01), Libert
patent: 5107412 (1992-04-01), Fuchs
patent: 5383082 (1995-01-01), Nishizawa
"Solid State AC Circuit Breaker", PROC. IEE, vol. 126, 1, Jan. 1979, pp. 75-76, XP002035029, M. Khalifa, Arifur Rahman, Syed Enamul-Haque.
European Search Report dated Jul. 18, 1997.

Affiliated with

Also associated with

Rating

Solid state relay does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid state relay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid state relay will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-996502