Low impedance snubber capacitor arrangement in a converter module
US12237790B2 · kind B2 · utility
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20Claims
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Inventors
Key dates
| Filing date | Mar 14, 2023 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Sep 25, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10272
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure is directed at an AC drive for driving an electric motor. The AC drive has a 3-phase diode bridge, an inverter and a snubber board with multilayer printed circuit board elements, wherein the power lane in every layer of every element is connected to only one potential DC− or DC+, each element includes two capacitors of inverted polarity, wherein each element includes two C-shaped bus bars and wherein the C-shaped bus bars of two neighbouring elements are placed in close proximity to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.