Power converter architecture employing at least one capacitor across a DC bus
First Claim
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1. A power converter, comprising:
- a first housing;
a substrate received in the first housing, the substrate comprising a number of regions;
a first DC bus bar comprising a first set of terminals, the first DC bus bar received at least partially in the first housing with the first set of terminals accessible from an exterior thereof;
a second DC bus bar comprising a second set of terminals, the second DC bus bar received at least partially in the first housing with the second set of terminals accessible from an exterior thereof;
a number of switches mounted to at least some of the regions of the substrate and electrically coupled to one another to form a bridge circuit electrically coupled between the first and the second DC bus bars;
a first film capacitor disposed in the exterior of the first housing and electrically coupled across the terminals of the first and the second DC bus bars; and
a second film capacitor disposed in the exterior of the first housing and electrically coupled across the terminals of the first and the second DC bus bars; and
a first DC interconnect electrically coupling an anode of the first film capacitor to an anode of the second capacitor; and
a second DC interconnect electrically coupling a cathode of the first capacitor to a cathode of the second film capacitor.
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Abstract
A power converter utilizes a high frequency capacitor and a bulk capacitor coupled across the DC terminals to reduce high frequency effect and voltage overshoot, leading to space and cost savings in power converter design. Each capacitor may be physically coupled adjacent the gate driver board via clips, clamps, and/or fasteners.
56 Citations
2 Claims
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1. A power converter, comprising:
- a first housing;
a substrate received in the first housing, the substrate comprising a number of regions;
a first DC bus bar comprising a first set of terminals, the first DC bus bar received at least partially in the first housing with the first set of terminals accessible from an exterior thereof;
a second DC bus bar comprising a second set of terminals, the second DC bus bar received at least partially in the first housing with the second set of terminals accessible from an exterior thereof;
a number of switches mounted to at least some of the regions of the substrate and electrically coupled to one another to form a bridge circuit electrically coupled between the first and the second DC bus bars;
a first film capacitor disposed in the exterior of the first housing and electrically coupled across the terminals of the first and the second DC bus bars; and
a second film capacitor disposed in the exterior of the first housing and electrically coupled across the terminals of the first and the second DC bus bars; anda first DC interconnect electrically coupling an anode of the first film capacitor to an anode of the second capacitor; and
a second DC interconnect electrically coupling a cathode of the first capacitor to a cathode of the second film capacitor. - View Dependent Claims (2)
- a first housing;
Specification
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Current AssigneeContinental Automotive Systems, Inc. (Continental AG)
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Original AssigneeContinental Automotive Systems US Incorporated (Continental AG)
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InventorsFlett, Fred, Ahmed, Sayeed, Patwardhan, Ajay V., Maly, Douglas K.
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Primary Examiner(s)Dinh; Tuan T
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Application NumberUS10/664,808Publication NumberTime in Patent Office1,868 DaysField of Search361775-777, 361/803, 257690-692US Class Current361/775CPC Class CodesH02M 1/126 using passive filtersH02M 1/32 Means for protecting conver...H02M 7/003 Constructional details, e.g...
