H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/28, 323/9
H05B 41/16 (2006.01) G05F 1/44 (2006.01) H05B 41/392 (2006.01)
Patent
CA 1133583
FREQUENCY SENSITIVE SWITCHING CIRCUIT ABSTRACT OF THE DISCLOSURE A switching circuit for energizing a load, such as fluorescent lamp ballasts, in response to a control signal of preselected frequency superimposed on AC power circuits which supply the load. A triac is gated to conduct the AC power to the load by a cir- cuit including an impedance element and a series resonant LC network tuned to the frequency of the control signal. The gate circuit is arranged to block the control signal during all but a small por- tion of each half cycle of the applied AC power, thereby reducing the consumption of control signal power, Further, a current limiting resistor is connected between the series resonant network and the triac to extend circuit life by protecting the triac from excess current without adversely affecting the signal- blocking function of the gate circuit.
341825
Gte Sylvania Incorporated
R. William Wray & Associates
LandOfFree
Frequency sensitive switching circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frequency sensitive switching circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency sensitive switching circuit will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-698298