Power drawing circuit for two-wire switching unit

Details Power drawing circuit for two-wire switching unit Power drawing circuit for two-wire switching unit

1996-08-06

1998-06-02

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307112, 307125, 327446, 327438, H01H 4700

Patent

active

057604983

ABSTRACT:
A power drawing circuit for a two-wire switching unit, the two-wire switching unit including a switching control circuit having its positive voltage input terminal connected in series to a load, the load being connected to one side of a power source. The power drawing circuit comprises a voltage drawing part for drawing a voltage to be supplied to the switching control circuit when the switching unit is turned on, the voltage drawing part having its one side connected to the positive voltage input terminal of the switching control circuit and its other side connected to a negative voltage input terminal of the switching control circuit, a triac having its one side connected to the other side of the voltage drawing part, its other side connected to the other side of the power source and its gate connected to a control terminal of the switching control circuit, and a diode connected in parallel to the power drawing part for passing a reverse current, the diode having its anode connected to the negative voltage input terminal of the switching control circuit and its cathode connected to the positive voltage input terminal of the switching control circuit. The power drawing circuit is not restricted by the types of load. Also, the power drawing circuit is well adaptive even to reactance loads and simple in construction.

REFERENCES:
patent: 4731548 (1988-03-01), Ingraham
patent: 4803418 (1989-02-01), Ritchie
patent: 5579192 (1996-11-01), Lee

Affiliated with

Also associated with

Rating

Power drawing circuit for two-wire switching unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power drawing circuit for two-wire switching unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power drawing circuit for two-wire switching unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1463497