Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Rectangular or pulse waveform width control
Reexamination Certificate
2007-02-13
2007-02-13
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Rectangular or pulse waveform width control
C323S222000, C327S100000, C327S175000
Reexamination Certificate
active
11097520
ABSTRACT:
In a wave-shaping circuit, a charging switching element in series with an inductor is switched, a capacitor is charged with a back electromotive force generated by the inductor, a discharging switching element in series with a discharge resistor is switched, and the charge in the capacitor is discharged. By controlling the timing at which the charging switching element and the discharging switching element are switched, the power supply voltage can be increased and it is possible to generate a charge voltage for which the slope of the envelope can be determined. As a result, an output voltage with a desired output voltage waveform can be obtained from the charge voltage. The wave-shaping circuit is a simple circuit that does not include a transformer is used to increase the voltage of a low-voltage power supply and to form an output voltage waveform from a DC waveform.
REFERENCES:
patent: 4355277 (1982-10-01), Davis et al.
patent: 4459537 (1984-07-01), McWhorter
patent: 5371439 (1994-12-01), Griffin
patent: 5801935 (1998-09-01), Sugden et al.
patent: 6320298 (2001-11-01), Kawabe
patent: 2003/0067449 (2003-04-01), Yoshikawa et al.
patent: 0 668 166 (1995-08-01), None
Patent Abstracts of Japan for JP2004-021697 published on Jan. 22, 2004.
“A digitally-controller, low-cost driver for piezoceramic flight control surfaces in small unmanned aircraft and munitions”, Dillard et al., APEC 2002, 17th, Annual IEEE Applied Power Electronics Conference And Exposition, Dallas, TX., Mar. 10-14, 2002, Annual Applied Power Electronics Conference, New York, NY: IEEE, US, vol. 2 of 2. Conf. 17, Mar. 10, 2002, pp. 1154-1160.
European Search Report for EP 05 25 2096 completed Sep. 27, 2005.
Darby & Darby
Le Dinh T.
SMK Corporation
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