Electricity: motive power systems – Switched reluctance motor commutation control
Reexamination Certificate
2005-08-25
2009-12-15
Patel, Rajnikant B (Department: 2838)
Electricity: motive power systems
Switched reluctance motor commutation control
C318S609000
Reexamination Certificate
active
07633249
ABSTRACT:
This invention is to reduce a voltage across a smoothing capacitor in a single-phase capacitorless inverter. A smoothing circuit (15) has a smoothing capacitor (C) connected between a pair of power supply lines (L1, L2). A diode (Ds) has its anode connected to one of the power supply lines (L1) and has its cathode connected to an end of a resistor (Rs), the other end of the resistor is connected to an end of a capacitor (Cs), the other end of the capacitor is connected to the other of the power supply lines (L2). In this way, the magnitude of a rectified voltage (Vdc) across the smoothing capacitor (C) can be reduced as compared with an absence of the series connection of diode (Ds), resistor (Rs) and capacitor (Cs).
REFERENCES:
patent: 4788485 (1988-11-01), Kawagishi et al.
patent: 6301131 (2001-10-01), Yoshida
patent: 1 0-32094 (1998-02-01), None
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Takahash, The Institute of Electrical Engineers of Japan, National Conference, 4-149, pp. 1591, (Mar. 2002), with English language translation.
Sekimoto Morimitsu
Yamai Hiroyuki
Birch & Stewart Kolasch & Birch, LLP
Daikin Industries Ltd.
Patel Rajnikant B
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