Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1997-08-14
1999-10-26
Wells, Kenneth B.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
363 60, 307110, G05F 110
Patent
active
059735457
ABSTRACT:
A single pump circuit for generating a variable high voltage that responds to more than one discrete input. The present invention uses a common pump circuitry to process a number of voltage inputs. Each of the voltage inputs can be a different input voltage and will be stepped up to a higher output voltage according to the design constraints of the pump circuitry. Since the pump circuitry is used for each of the inputs, without redundancy, the amount of chip real estate consumed is minimized. A switching system is implemented that detects which input has a voltage present and activates a particular path to the pump output accordingly.
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Cypress Semiconductor Corp.
Maiorana P.C. Christopher P.
Wells Kenneth B.
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