H-bridge circuit with shoot through current prevention...

Details H-bridge circuit with shoot through current prevention... H-bridge circuit with shoot through current prevention...

2007-06-26

2007-06-26

Le, Don (Department: 2819)

Electronic digital logic circuitry

Reliability

Fail-safe

C326S027000, C363S050000

Reexamination Certificate

active

11239021

ABSTRACT:
The H-bridge circuit with shoot through current prevention during power-up includes: a high side transistor; a low side transistor coupled in series with the high side transistor; pull down devices coupled to a control node of the high side transistor and to a control node of the low side transistor; and wherein the pull down devices are controlled by a pull down circuit including a Power On Reset circuit, monitoring the digital power supply such that the high side and low side transistors are OFF until the digital power supply has settled to a desired operating voltage.

REFERENCES:
patent: 4989127 (1991-01-01), Wegener
patent: 6307409 (2001-10-01), Wrathall
patent: 6728084 (2004-04-01), Ziemer et al.
patent: 6909620 (2005-06-01), Park et al.

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