Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Generating sawtooth or triangular output
Reexamination Certificate
2008-03-07
2010-10-19
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Generating sawtooth or triangular output
C327S134000
Reexamination Certificate
active
07816955
ABSTRACT:
The present invention provides a ramp generator capable of appropriately setting a rise starting point of an output voltage of a ramp waveform and an output voltage at the time of stable output. A current adjustment unit including a differential pair of transistors and an amplifier constitute a feedback circuit. By controlling the charging/discharging of an integration capacitor by ON/OFF of a discharge current source connected to a common emitter terminal of the current adjustment unit, an output of the ramp waveform outputted from an output terminal disposed at the connection end of the integration capacitor is controlled.
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Japanese Office Action in JP 2007-072800 (in Japanese), dated Jun. 23, 2009.
Chujo Norio
Imagawa Kengo
Takahashi Masayoshi
Antonelli, Terry Stout & Kraus, LLP.
Donovan Lincoln
Hiltunen Thomas J
Hitachi , Ltd.
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