Gate driver circuits with programmable performance characteristics
AssigneeABB Schweiz AG
InventorKalyan Gokhale
Life of this patent
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Abstract
In one embodiment a gate driver circuit is provided. The gate driver circuit includes a turn-on circuit path and a turn-off circuit path. The turn-on circuit path is coupled between a gate of a solid-state switch and a first output of a gate driver, and the turn-on circuit path defines a turn-on time for the solid-state switch. The turn-off circuit path is coupled between the gate and a second output of the gate driver, and the turn-off circuit path defines a turn-off time for the solid-state switch. The turn-on circuit path and/or the turn-off circuit path includes one or more branches of resistors and fuses connected in series, where the one or more branches are electrically coupled in parallel.
Claims20
A gate driver circuit, comprising:
- a turn-on circuit path coupled between a gate of a solid-state switch and a first output of a gate driver, wherein the turn-on circuit path defines a turn-on time for the solid-state switch;
- and
- a turn-off circuit path coupled between the gate and a second output of the gate driver, wherein the turn-off circuit path defines a turn-off time for the solid-state switch,
- wherein the turn-on circuit path and/or the turn-off circuit path includes one or more branches of resistors and fuses connected in series, and wherein the one or more branches are electrically coupled in parallel.
A gate driver circuit, comprising:
- a first circuit path coupled between a node and an output of a gate driver;
- and
- a second circuit path coupled between the node and a gate of a solid-state switch,
- wherein the first circuit path and/or the second circuit path includes one or more branches of resistors and fuses connected in series, and wherein the one or more branches are electrically coupled in parallel.
A gate driver circuit, comprising:
- a turn-on circuit path coupled between a gate of a solid-state switch and a first output of a gate driver,
- wherein the turn-on circuit path defines a turn-on time for the solid-state switch,
- wherein the turn-on circuit path includes a plurality of branches of resistors and fuses connected in series, and
- wherein the turn-on time is configurable based on which of the fuses in the plurality of branches are selectively blown open.
Dependencies are inferred from the claim text.