Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1991-04-18
1995-03-28
Pellinen, A. D.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
361170, 361171, 361155, 307110, H02M 318, H01H 4732
Patent
active
054023033
ABSTRACT:
One or more loads, commonly solenoids, requiring a high-power drive--typically 500 ma. 7.5 v.d.c.--are selectively actuated by energy that is accumulated over time--typically over several hundred milliseconds--within associated, addressable, energy-accumulating high-power drivers. The energy accumulation is solely from micropowered signals--typically 1 ma., 4.5 v.d.c.--that are received from a control system that is itself micropowered--typically from a high-equivalent-series-resistance power source. The energy-accumulating high-power solenoid drivers (i) accumulate predetermined amounts of energy only as, when, and to such extent as is required, (ii) multiply the voltage (nominally times two) of the received micropowered signals, and (iii) shape the current waveform of the output high-power solenoid drive signals--all as desired so as to optimally both use and conserve energy. The selfsame micropowered signals normally supply several energy-accumulating solenoid drivers in electrical parallel, selectively addressing an individual one such driver. Each energy-accumulating solenoid driver is tri-stated, and neither consumes nor leaks energy save imminently upon the times of its selected actuation, and of the actuation of the load that it drives.
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Luck Jonathan M.
Nielsen Wyn Y.
Fleming Fritz M.
Fuess William C.
Pellinen A. D.
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