Precision control of relay operate and release times
AssigneeGTE Automatic Electric (Canada) Limited
InventorJohn A. Gauthier
Life of this patent
Estimating the term…
Abstract
A shift register is provided with two inputs and two outputs. One input is from a free running clock and a second input is provided for relay operate and release signals. The two outputs are coupled to a NAND gate to provide a longer relay operate than release time. The two outputs are coupled to a NOR gate for a longer relay release time than operate time. Either gate output is coupled to a relay driver to operate the relay.
Claims3
A system for varied accurate relay operate and release times including, a relay, a free running clock producing clock pulses, and relay operate and release signals, said system comprising:
- a single shift register device having one input coupled to said clock pulses and a second input coupled to said relay operate and release signals;
- a single output gate means coupled to said shift register device;
- and
- relay driver means coupled to said output gate means and to said relay.
Dependencies are inferred from the claim text.