Apparatus for powering a transmitter from a switched leg

Details Apparatus for powering a transmitter from a switched leg Apparatus for powering a transmitter from a switched leg

1996-05-17

1997-12-23

Berhane, Adolf

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

375219, H02J 336, H04B 502

Patent

active

057012407

ABSTRACT:
A power supply for operating from a switched leg of an AC power line and for powering a transmitter is described. A switch provides current during the beginning of each AC half cycle to an inductor and charges a capacitor. When the switch is open, the inductor continues to charge the capacitor. During the time that the inductor is coupled to that AC line, the switched leg is open. For instance, the signal used to close the switch also prevents a triac in the switched leg from conducting. When the voltage on the capacitor drops to a predetermined level transmission from the transmitter is inhibited. A timing circuit is used to determine when to begin transmissions to compensate for variables in the node such as line voltages and part tolerances.

REFERENCES:
patent: 4713598 (1987-12-01), Smith
patent: 4821166 (1989-04-01), Albach
patent: 4918690 (1990-04-01), Markkula, Jr. et al.
patent: 4962354 (1990-10-01), Visser et al.
patent: 5018138 (1991-05-01), Twitty et al.
patent: 5182746 (1993-01-01), Hurlburt et al.
patent: 5347549 (1994-09-01), Baumann et al.
patent: 5454008 (1995-09-01), Baumann et al.
patent: 5548614 (1996-08-01), Stoll et al.

Affiliated with

Also associated with

Rating

Apparatus for powering a transmitter from a switched leg does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for powering a transmitter from a switched leg, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for powering a transmitter from a switched leg will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1805688