×

Driver circuit

  • US 4,798,935 A
  • Filed: 07/08/1987
  • Issued: 01/17/1989
  • Est. Priority Date: 07/08/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. A driver circuit responsive to an input AC voltage for applying said input AC voltage for a predetermined duration to a load, said driver circuit comprising means for receiving an input AC voltage, means for providing a DC voltage related to said input AC voltage, timing means responsive to said DC voltage for generating a continuous control signal for a selected time period which has a duration greater than one cycle of said input AC voltage and corresponding in duration to said predetermined duration, and control means receiving said control signal over said selected time period for applying said input AC voltage to said load through said control means when said input AC voltage is in the positive portion of its cycle, said input AC voltage applied to said control means when said input AC voltage is in both the positive and negative portions of its cycle.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×