Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1996-07-19
1998-09-29
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327535, 327566, 327564, 327589, 327390, 327534, 307110, 363 59, H02M 318, H02M 700
Patent
active
058150269
ABSTRACT:
An integrated circuit voltage multiplier 30 in a semiconductor substrate of a first conductivity type. The multiplier includes a diode 22, having a first voltage VDD applied to a first port thereof, the diode being made of: 1) a first well 12 of a second conductivity type formed in the substrate, being connected to a second voltage VB; 2) a second well 14 of the first conductivity type formed in the first well, having an electrical contact point comprising the first port of the diode; and 3) a third well 16 of the second conductivity type formed in the second well, having an electrical contact point comprising a second port of the diode. The multiplier also includes a capacitor C3, having a first contact thereof connected to the second port of the diode and having a third, pulsed voltage PH1 connected to a second contact of the capacitor. The second voltage has a value of the first voltage or higher, such that the emitter-base junction of a parasitic transistor 20 formed by the substrate, the first well and the second well is not forward biased, and wherein the third, pulsed voltage drives the second port of the diode to a voltage of a level of the first voltage, less the forward bias voltage drop of the diode, plus the level of the third voltage.
REFERENCES:
patent: 5625544 (1997-04-01), Kowshik et al.
Marotta Giulio
Santin Giovanni
Smayling Michael C.
Callahan Timothy P.
Donaldson Richard L.
Kesterson James C.
Le Dihn T.
Moore J. Dennis
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