Lamp power supply arrangement for key telephone system

Details Lamp power supply arrangement for key telephone system Lamp power supply arrangement for key telephone system

H - Electricity

04

M

328/112, 379/12,

H04M 19/00 (2006.01) G08B 5/38 (2006.01) H03K 17/30 (2006.01)

Patent

CA 1039423

ABSTRACT The present invention relates to a rate generator for surgelessly delivering, to a remotely-grounded load, a plurality of current supply signals having predeterminable periodicity. The generator is comprised of a current source which has a substantially half-sinusoidal waveform and a semi- conductor switch which has its source and drain electrodes interposed between the current source and the load. The switch has a controllable gate electrode. A sensor is provided for sensing the current being delivered through the switch to the load. A driver unit is provided, controlled by the sensor, for selectively driving the gate electrode in inverse relation- ship to the magnitude of the current detected by the sensor, the driving commencing only when the magnitude of the source voltage waveform is less than a predetermined value.

291998

Affiliated with

Also associated with

Rating

Lamp power supply arrangement for key telephone system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lamp power supply arrangement for key telephone system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lamp power supply arrangement for key telephone system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-289487