Discharging circuit for a piezoelectric device

Details Discharging circuit for a piezoelectric device Discharging circuit for a piezoelectric device

2006-07-11

2006-07-11

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07075210

ABSTRACT:
In a piezoelectric actuator, a first driving signal amplified a predetermined sine wave is applied to a piezoelectric device in a direction parallel to a polarization direction thereof. A second driving signal having a negative phase with respect to the first driving signal which is amplified the sine wave is applied to the piezoelectric device in a direction opposite to the polarization direction. Thus, the piezoelectric device is driven by a driving signal amplified the first or second driving signal double. Voltages of the first and second driving signals are much smaller than a voltage of inversion of polarization of ceramic thin plates constituting the piezoelectric device.

REFERENCES:
patent: 4613782 (1986-09-01), Mori et al.
patent: 4653101 (1987-03-01), Myers
patent: 4689735 (1987-08-01), Young
patent: 4733106 (1988-03-01), Okutsu et al.
patent: 4997177 (1991-03-01), Mori et al.
patent: 5101178 (1992-03-01), Komoda
patent: 5130598 (1992-07-01), Verheyen et al.
patent: 5208505 (1993-05-01), Mitsuyasu
patent: 5210454 (1993-05-01), Naito
patent: 5319278 (1994-06-01), Myohga et al.
patent: 5589723 (1996-12-01), Yoshida et al.
patent: 5646469 (1997-07-01), Tsukimoto et al.
patent: 5783899 (1998-07-01), Okazaki
patent: 5786654 (1998-07-01), Yoshida et al.
patent: 5912525 (1999-06-01), Kobayashi et al.
patent: 5945768 (1999-08-01), Treu, Jr.
patent: 5969464 (1999-10-01), Nakano et al.
patent: 6081061 (2000-06-01), Reineke et al.
patent: 6133671 (2000-10-01), Atsuta et al.
patent: 6140750 (2000-10-01), Ueyama
patent: 6147433 (2000-11-01), Reineke et al.
patent: 6151050 (2000-11-01), Hosono et al.
patent: 6177753 (2001-01-01), Atsuta
patent: 6204591 (2001-03-01), Nariai
patent: 6271618 (2001-08-01), Hoffmann et al.
patent: 6703762 (2004-03-01), Okada
patent: 0 347 846 (1989-12-01), None
patent: 1-122375 (1989-05-01), None
patent: 6-232469 (1994-08-01), None
patent: 7-123744 (1995-05-01), None
patent: 9-9650 (1997-01-01), None
patent: 9-37572 (1997-02-01), None
patent: 10-290588 (1998-10-01), None

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