Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1998-07-01
2000-08-22
Nappi, Robert E.
Electricity: motive power systems
Induction motor systems
Primary circuit control
318798, H02P 534
Patent
active
061077739
ABSTRACT:
A circuit arrangement for feeding a single-phase or multi-phase load from a sinusoidal alternating voltage energy supply mains which carries an at least having a frequency for which the load has a substantially resistive behavior. The circuit arrangement includes a full-wave rectifier stage for deriving a substantially sinusoidal intermediate circuit voltage, a modulation stage, for example, a single-phase or multi-phase inverter, which generates from the intermediate circuit voltage, under the control of a control signal whose frequency is high relative to the frequency of the mains alternating voltage, at least one high-frequency supply voltage which is applied to the load. The supply voltage (voltages) is determined from the product of the control signal and the intermediate circuit voltage. A high-frequency filter stage is coupled to the full-wave rectifier stage so as to suppress interference induced into the energy supply mains in a frequency range which includes the frequency of the control signal. This simple circuit arrangement ensures a mains current containing few harmonics.
REFERENCES:
patent: 4473790 (1984-09-01), Plunkett et al.
patent: 4716515 (1987-12-01), Alexander
patent: 4788635 (1988-11-01), Heinrich
patent: 5245522 (1993-09-01), Kawaguchi
patent: 5298847 (1994-03-01), Kerkman et al.
patent: 5471125 (1995-11-01), Wu
patent: 5576606 (1996-11-01), Phuoc et al.
Bartlett Ernestine C.
Duda Rina I.
Franzblau Bernard
Nappi Robert E.
U.S. Philips Corporation
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