Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-07-06
2009-08-25
Budd, Mark (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S317000
Reexamination Certificate
active
07579749
ABSTRACT:
A power supply device generates an output voltage by driving a piezoelectric transformer using a frequency signal. The power supply device includes a comparison unit configured to compare an output voltage and a voltage setting signal that sets the output voltage, and a voltage control oscillation unit configured to generate the frequency signal to drive the piezoelectric transformer based on comparison results of the comparison unit. The voltage control oscillation unit generates the frequency signal within a range between the resonant frequency and a spurious resonant frequency closest to the resonant frequency.
REFERENCES:
patent: 5654605 (1997-08-01), Kawashima
patent: 5731652 (1998-03-01), Shimada
patent: 6028388 (2000-02-01), Shimada
patent: 6044003 (2000-03-01), Toshinari et al.
patent: 6144139 (2000-11-01), Noma et al.
patent: 6268681 (2001-07-01), Yamaguchi et al.
patent: 6509671 (2003-01-01), Takeda et al.
patent: 6583534 (2003-06-01), Nakatsuka et al.
patent: 6654221 (2003-11-01), Noma et al.
patent: 6720705 (2004-04-01), Nakatsuka et al.
patent: 6794794 (2004-09-01), Klement
patent: 6794796 (2004-09-01), Nakatsuka et al.
patent: 6911786 (2005-06-01), Qiu
patent: 7196475 (2007-03-01), Saito et al.
patent: H03-022873 (1991-01-01), None
patent: 11-206113 (1999-07-01), None
Murata Hiroki
Nagasaki Osamu
Nakamori Tomohiro
Namiki Teruhiko
Uchiyama Takehiro
Budd Mark
Canon Kabushiki Kaisha
Canon USA Inc IP Division
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