Single-drive level shifter with low dynamic impedance

Details Single-drive level shifter with low dynamic impedance Single-drive level shifter with low dynamic impedance

1991-07-24

1992-11-03

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307475, 307451, 307558, 3072723, 307594, H03K 190175

Patent

active

051608545

ABSTRACT:
A level shifter, particularly suited for driving power stages for supplying power to integrated circuits, includes a DMOS transistor (40) which is driven by a digital signal source (42) and has a load resistor (44) as its drain load. A shifted output signal develops at the ends of said load resistor. The drain (V1) of the DMOS transistor is connected to the input of an inverter (46), while a Zener diode (54) and a second transistor (52) are connected in parallel with the load resistor (44), the gate of the second transistor (52) being driven by the output of the inverter (46). The output of the inverter (46) can be connected to the input of a drive stage (48), the output of which drives a power stage (50) for supplying power to an integrated circuit.

REFERENCES:
patent: 4501978 (1985-02-01), Gentile et al.
patent: 4506164 (1985-03-01), Higuchi
patent: 4791323 (1988-12-01), Austin
patent: 4829203 (1989-05-01), Ashmore, Jr.
patent: 4958089 (1990-09-01), Fitzpatrick et al.
patent: 4958091 (1990-09-01), Roberts
patent: 5036226 (1991-07-01), Tonnu et al.

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