Electricity: motive power systems – Battery-fed motor systems
Patent
1995-10-10
1997-06-17
Ip, Paul
Electricity: motive power systems
Battery-fed motor systems
318373, 318376, H02J 904
Patent
active
056400713
ABSTRACT:
In a circuit having an electromechanical transducer, such as a motor (22), a control switch (24) is controlled by a control circuit (26) to connect the motor to, and disconnect from, a battery (12). When control switch opens, thereby disconnecting the motor from the battery, the momentum achieved by the motor tends keep the motor turning, causing the motor to behave like a generator. A switch network (28) connects a first capacitor (30), which is initially discharged, across the motor at the same time the control switch disconnects it from the battery. The momentum of the motor, and any attached mechanical system (32), generates a transient charge which is collected by the first capacitor. When the voltage produced by the collected charge reaches a peak, the switch network disconnects the first capacitor from the motor, reorients the first capacitor, and waits to apply the voltage to the motor. A charge pump connected between the first capacitor and the battery may be activated to transfer the collected charge back to the battery if the motor is not to be started for some time.
REFERENCES:
patent: 4454454 (1984-06-01), Valentine
patent: 4677539 (1987-06-01), Erickson et al.
patent: 4680516 (1987-07-01), Guzik et al.
patent: 4712853 (1987-12-01), Howard
patent: 4733146 (1988-03-01), Hamby
patent: 4767970 (1988-08-01), Rodal
patent: 4829391 (1989-05-01), Vargas
patent: 4904918 (1990-02-01), Bailey et al.
patent: 4926354 (1990-05-01), Pattantyus
patent: 5170105 (1992-12-01), Kumar
patent: 5243522 (1993-09-01), Salzmann
patent: 5245524 (1993-09-01), Nakagawa et al.
patent: 5412268 (1995-05-01), Arnaud et al.
patent: 5473227 (1995-12-01), Arnaud et al.
patent: 5572099 (1996-11-01), Carobolante
Garrett Scott M.
Malaspina Francis P.
Prasad Sathya S.
Thomas Simon
Ip Paul
Massaroni Kenneth M.
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