Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1995-12-21
1998-06-16
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327589, 36518909, H03K 1710, H03K 17687
Patent
active
057677344
ABSTRACT:
A high voltage pump with an initiation scheme to achieve voltages above VDD. In response to a pulse signal, an initiation voltage is placed on a first node (515) of a voltage pump to initiate pumping action. The initiation voltage is passed through a transistor (545) coupled between a high voltage output node (415) and the first node (515) of the voltage pump. The first node (515) is coupled through a capacitor (510) to an oscillator (405) which charges the first node (515). A high voltage is produced at the high voltage output node (415). The initiation scheme may be applied to one-stage and multiple-stage voltage pumps.
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Vest William B.
Wong Myron W.
Altera Corporation
Callahan Timothy P.
Englund Terry L.
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