Three-level inverter power module with multiple operation modes
AssigneeAtieva, Inc.
InventorsRichard J. Biskup, Zheng An
Life of this patent
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Abstract
A three-level T-type neutral point clamp (TNPC) inverter comprises: a first direct current (DC) terminal and a second DC terminal; a first capacitor and a second capacitor electrically connected in series between the first and second DC terminals; and first, second and third circuitry legs, each of the first, second and third circuitry legs including i) switches electrically connected in series between the first and second DC terminals, and ii) a T-leg switch electrically connected between a point between the first and second capacitors and a point between the switches, wherein the T-leg switch is undersized compared to the switches.
Claims22
A three-level T-type neutral point clamp (TNPC) inverter comprising:
- a first direct current (DC) terminal and a second DC terminal;
- a first capacitor and a second capacitor electrically connected in series between the first and second DC terminals;
- and
- first, second and third circuitry legs, each of the first, second and third circuitry legs including i) switches electrically connected in series between the first and second DC terminals, and ii) a T-leg switch electrically connected between a point between the first and second capacitors and a point between the switches, wherein the T-leg switch is undersized compared to the switches, wherein the T-leg switch is undersized compared to the switches by the T-leg switch having less die area than a die area of each of the switches, and wherein the die area of the T-leg switch is at most about 20 percent of the die area of each of the switches.
A three-level T-type neutral point clamp (TNPC) inverter comprising:
- a first direct current (DC) terminal and a second DC terminal;
- a first capacitor and a second capacitor electrically connected in series between the first and second DC terminals;
- and
- first, second and third circuitry legs, each of the first, second and third circuitry legs including i) switches electrically connected in series between the first and second DC terminals, and ii) a T-leg switch electrically connected between a point between the first and second capacitors and a point between the switches, wherein the T-leg switch is undersized compared to the switches, wherein the T-leg switch is undersized compared to the switches by the T-leg switch having a current rating that is lower than a current rating of each of the switches, and wherein the current rating of the T-leg switch is at most about 20 percent of the current rating of each of the switches.
Dependencies are inferred from the claim text.