Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1995-08-30
1997-12-23
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327537, G05F 110
Patent
active
057010960
ABSTRACT:
A charge-pump type booster circuit has a first capacitor, a power source applying unit, a transfer gate, a second capacitor, a switching unit, and a precharge circuit. The first capacitor is used to boost an output voltage, the power source applying unit is used to apply a first power supply voltage to an output terminal of the first capacitor. The transfer gate is used to transfer the boosted output voltage, and the second capacitor is used to boost a gate voltage of the transfer gate. The switching unit is used to control an input voltage of the second capacitor, and the precharge circuit is used to apply a specific high voltage to a control terminal of the transfer gate. Therefore, a sufficient high-voltage output (super-high power supply voltage) can be surely generated by using a low voltage (general high power supply voltage).
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T. Suzuki et al., "High-Speed Circuit Techniques for Battery-Operated 16 Mbit CMOS DRAM", IEICE Trans. Electron, vol. E77-C, No. 8, Aug. 1994, pp. 1334-1341.
Callahan Timothy P.
Fujitsu Limited
Kim Jung Ho
LandOfFree
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