Stress tolerant high voltage back-to-back switch

Details Stress tolerant high voltage back-to-back switch Stress tolerant high voltage back-to-back switch

2006-10-03

2006-10-03

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

Reexamination Certificate

active

07116151

ABSTRACT:
Methods and apparatuses associated with stepping down a high voltage in a high voltage switch. An additional transistor may be coupled to a switching transistor, and the additional transistor biased to a voltage level in between the high voltage to be switched and a switch reference voltage. When the switch is off, the high voltage may thus be spread across multiple devices to prevent a voltage from the gate to the drain to exceed a threshold associated with gate-aided breakdown of the drain-to-substrate channel-side pn-junction.

REFERENCES:
patent: 5748029 (1998-05-01), Tomasini et al.
patent: 5973508 (1999-10-01), Nowak et al.

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