Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1984-02-16
1986-07-15
Gellner, Michael L.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
323316, 361152, G05F 322, H01H 4732
Patent
active
046009655
ABSTRACT:
In a current driving circuit which supplies a two-terminal load with current to be inverted in accordance with input information, a current driving circuit according to the present invention comprises a load whose one-side terminal has its potential fixed, circuitry to supply a non-fixed side terminal of the load with a direct current, and circuitry to supply the non-fixed side terminal with a current having a magnitude double that of the direct current and a polarity opposite to that of the direct current, while switching it in accordance with input information. Owing to such construction, the number of terminals to be led out from the loads can be reduced, and a load current can be inverted at high speed. In addition, reliability can be enhanced because the assembling process is simplified.
REFERENCES:
patent: 3629725 (1971-12-01), Chun
patent: 4433357 (1984-02-01), Nishimura et al.
patent: 4513252 (1985-04-01), Sano
Arai Shinichi
Kamo Yoshihisa
Katoh Yasuhiro
Momata Kazuhiro
Sato Naoki
Gellner Michael L.
Hitachi , Ltd.
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