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US 9,853,441 B2Granted
Voltage transient protection circuitry
AssigneeTriune Systems, LLC
InventorsRoss E. Teggatz, Wayne T. Chen, Brett Smith
Life of this patent
Estimating the term…
Abstract
Disclosed are advances in the arts with novel and useful voltage transient protection circuitry in configurations which include a bridge circuit in combination with one or more voltage reference, load to ground circuit, and/or snub circuit such that the output node is held at a selected voltage level, preferably mid-rail, and potentially damaging transient voltages are avoided.
Claims20
A voltage transient protection circuit in a configuration comprising:
- a voltage reference circuit operably coupled by a switch to a gate of a high-side device;
- and
- a load to ground circuit operably coupled to an output node;
- wherein the high-side device is configured to be operated under selected voltage conditions and deactivated in response to a selected high voltage condition, to hold the output node at a selected voltage level.
1 more element
A voltage transient protection circuit in a configuration comprising:
- a bridge circuit having an output node;
- a voltage reference circuit operably coupled by a switch to the output node;
- and
- wherein the voltage reference circuit is configured to operate under selected voltage conditions and to be deactivated in response to a selected high voltage condition, such that the output node is held at a selected voltage level.
1 more element
A voltage transient protection circuit in a configuration comprising:
- a voltage reference circuit operably coupled by a switch to a gate of a high-side device, whereby the high-side device is configured to be deactivated in response to a selected high voltage condition;
- a low-side snub circuit operably coupled between a gate of a low-side device and an output node, whereby the low-side device is configured to be deactivated in response to a selected low voltage condition;
- and
- wherein a deadband voltage region is provided by the configuration of the high side device and the low side device where neither the high-side device nor the low-side device operates.
1 more element
Dependencies are inferred from the claim text.