Spark suppressor circuit for protection of an electrical switch,

Details Spark suppressor circuit for protection of an electrical switch, Spark suppressor circuit for protection of an electrical switch,

1994-05-17

1996-11-19

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 56, H01G 212

Patent

active

055769195

ABSTRACT:
A spark suppressor circuit (1) is provided for protection of an electrical switch (4) which in series with a load (2) is connected between a first supply voltage terminal (8) and a second supply voltage terminal (10), the load (2) and the electrical switch (4) being interconnected at a switch terminal (6). The spark suppressor circuit (1) comprises: a first (12), a second (14) and a third (16) connection terminal connectable to the first supply voltage terminal (8), the second supply voltage terminal (10) and the switch terminal (6), respectively, a triac (18) having a first main electrode (20) connected to the third connection terminal (16), having a second main electrode (22) connected to the second connection terminal (14), having a gate electrode (24) connected to the first connection terminal (12) via a resistor (32), a diac (26) connected between the gate electrode (24) and a node (28), and a capacitor (30) connected between the node (28) and the third connection terminal (16), the resistor (32) being coupled between the first connection terminal (12) and the node (28) to supply a current in response to a voltage difference between the first connection terminal (12) and the third connection terminal (16).

REFERENCES:
patent: 3555353 (1971-01-01), Casson
patent: 3783305 (1974-01-01), Lefferts
patent: 4585926 (1986-04-01), Easthill

Affiliated with

Also associated with

Rating

Spark suppressor circuit for protection of an electrical switch, does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spark suppressor circuit for protection of an electrical switch,, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spark suppressor circuit for protection of an electrical switch, will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-545432