Inverting latching bootstrap driver with V.sub.dd *2 booting

Details Inverting latching bootstrap driver with V.sub.dd *2 booting Inverting latching bootstrap driver with V.sub.dd *2 booting

1988-09-26

1990-02-20

Hudspeth, David

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, 307452, 307578, H03K 1710

Patent

active

049029193

ABSTRACT:
An inverting latching bootstrap driver is used to drive a load where the input to the driver may change during the driving phase. The input to the driver circuit is controlled by a precharge/discharge type decoder. The bootstrap driver samples the input during the same phase the decoder discharges, and isolates the input while the decoder precharges. Accordingly, the decoder is precharged during the same phase that the bootstrap output is driven. The circuit implementation uses a transistor in series with the enhancement device of the inverter to disable the inverter while the bootstrap is fired. Since the device used to isolate the booting charge is a depletion mode device, the booting node will be able to rise to a full V.sub.DD *2.

REFERENCES:
patent: 4494018 (1985-01-01), Clemen et al.
patent: 4622479 (1986-11-01), Taylor
patent: 4633106 (1986-12-01), Backes et al.
patent: 4679214 (1989-07-01), Takemae
patent: 4680488 (1987-07-01), Okumura et al.
patent: 4725746 (1988-02-01), Segawa et al.

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