Efficient IGBT switching
First Claim
Patent Images
1. An IGBT circuit module comprisinga circuit board;
- an IGBT coupled with the circuit board having a gate, a collector, and an emitter;
a driver that provides current to the gate of the IGBT coupled with the circuit board; and
a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver, wherein the length of the first trace is less than 1 cm,wherein the circuit module is configured to couple with a load between the emitter and the collector.
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Abstract
Embodiments of the invention provide IGBT circuit modules with increased efficiencies. These efficiencies can be realized in a number of ways. In some embodiments, the gate resistance and/or voltage can be minimized. In some embodiments, the IGBT circuit module can be switched using an isolated receiver such as a fiber optic receiver. In some embodiments, a single driver can drive a single IGBT. And in some embodiments, a current bypass circuit can be included. Various other embodiments of the invention are disclosed.
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Citations
20 Claims
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1. An IGBT circuit module comprising
a circuit board; -
an IGBT coupled with the circuit board having a gate, a collector, and an emitter; a driver that provides current to the gate of the IGBT coupled with the circuit board; and a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver, wherein the length of the first trace is less than 1 cm, wherein the circuit module is configured to couple with a load between the emitter and the collector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An IGBT circuit module comprising
a circuit board; -
an IGBT coupled with the circuit board having a gate, a collector, and an emitter; a driver that provides current to the gate of the IGBT coupled with the circuit board; and a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver, wherein the first trace has an inductance less than 100 nH, wherein the circuit module is configured to couple with a load between the emitter and the collector.
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20. An IGBT circuit module comprising
a circuit board; -
an IGBT coupled with the circuit board having a gate, a collector, and an emitter; a driver that provides current to the gate of the IGBT coupled with the circuit board; and a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver, wherein the first trace has an inductance less than 1 ohm, wherein the circuit module is configured to couple with a load between the emitter and the collector.
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Specification