US 11,745,599 B1
Low inductance power converter with compact commutation cell
Uwe Waltrich, Forchheim (DE); and Stanley Buchert, Herzogenaurach (DE)
Assigned to Rolls-Royce Deutschland Ltd & Co KG, Blankenfelde-Mahlow (DE)
Filed by Rolls-Royce Deutschland Ltd & Co KG, Blankenfelde-Mahlow (DE)
Filed on Dec. 14, 2022, as Appl. No. 18/81,315.
Application 18/081,315 is a continuation of application No. 17/899,960, filed on Aug. 31, 2022, granted, now 11,634,034.
Claims priority of application No. 10 2022 205 483.0 (DE), filed on May 31, 2022.
Int. Cl. B60L 15/00 (2006.01)
CPC B60L 15/007 (2013.01) [B60L 2210/14 (2013.01); B60L 2210/30 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A power electronics converter comprising:
a converter commutation cell comprising a power circuit and a gate driver circuit, the power circuit comprising at least one power semiconductor switching element and at least one capacitor,
wherein each power semiconductor switching element of the at least one power semiconductor switching element is comprised in a power semiconductor prepackage,
wherein the power semiconductor prepackage comprises one or more power semiconductor switching elements embedded in a solid insulating material, each power semiconductor switching element of the one or more power semiconductor switching elements having at least three terminals including a gate terminal,
wherein the gate driver circuit is electrically connected to each power semiconductor switching element of the at least one power semiconductor switching element,
wherein the gate driver circuit is configured to provide switching signals to the gate terminal of each power semiconductor switching element of the at least one power semiconductor switching element, and
wherein a peak rated power output of the power electronics converter is greater than 25 kW and a value of a converter parameter α is less than or equal to 5 pHm3, wherein the converter parameter a is a product of a smallest cuboidal volume that encloses the converter commutation cell and a parasitic inductance of the power circuit of the converter commutation cell.