Efficient IGBT switching
First Claim
Patent Images
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 coupled with the circuit board;
a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver; and
a fast capacitor coupled with the collector via an inductor of inductance less than 50 nH,wherein the circuit module is configured to couple with a load between the emitter and the collector.
2 Assignments
0 Petitions
Accused Products
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.
64 Citations
30 Claims
-
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 coupled with the circuit board; a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver; and a fast capacitor coupled with the collector via an inductor of inductance less than 50 nH, 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, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
15. 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 coupled with the circuit board; a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver; and a current bypass circuit between the collector and the emitter, wherein the current bypass circuit includes an inductance less than 10 nH.
-
-
16. 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 coupled with the circuit board and a fiber optic receiver; and a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver, wherein the driver is coupled with a fiber optic receiver.
-
-
25. 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 coupled with the circuit board; a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver, wherein the IGBT has an emitter inductance and a collector inductance, wherein the emitter inductance is greater than or equal to the collector inducance.
-
-
26. 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 coupled with the circuit board; a plurality of traces, wherein a first trace of the plurality of traces electrically couples the gate and the driver, wherein the IGBT has an inductance that is greater than the inductance of the IGBT circuit module without the IGBT.
-
-
27. An IGBT circuit module comprising
a plurality of IGBTs, wherein each IGBT includes a gate, a collector, and an emitter; -
a receiver; a pre-driver coupled with the receiver; and a plurality of gate drivers coupled with the pre-driver, and wherein each of the plurality of gate drivers is coupled with the gate of one of the plurality of IGBTs. - View Dependent Claims (28, 29, 30)
-
Specification