Title:
METHOD AND DEVICE FOR MONITORING A POWER ELECTRONIC ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2019/137581
Kind Code:
A1
Abstract:
The problem to be solved by the present invention is that of designing the monitoring of a power electronic assembly to be more effective and versatile. This problem is solved according to the invention in that, by means of a power electronic assembly, an electrical value is converted and/or modified which first corresponds to an electrical input value, which is later converted to at least one electrical output value by a conversion and/or modification process which proceeds in connection with the power electronic assembly, wherein, during said conversion and/or modification, according to the invention a bit stream is generated by means of a delta-sigma modulator and represents the electrical value, that is to say the electrical input value or the at least one electrical output value. According to the invention, a bit stream can also be generated by means of a plurality of delta-sigma modulators and represents the respective electrical values, that is to say the electrical input value and the at least one electrical output value. According to the invention, the power electronic assembly is monitored based on the bit stream(s) thus generated and available as a result. It is essential to the present invention that the bit stream(s) is/are not demodulated, and therefore very meaningful information of the corresponding useful signal is provided.
Inventors:
ORLIK THOMAS (DE)
HOMANN MICHAEL (DE)
KLÖCK JAN (DE)
RABBA HEIKO (DE)
HOMANN MICHAEL (DE)
KLÖCK JAN (DE)
RABBA HEIKO (DE)
Application Number:
PCT/DE2019/100017
Publication Date:
July 18, 2019
Filing Date:
January 10, 2019
Export Citation:
Assignee:
IAV GMBH INGENIEURGESELLSCHAFT AUTO & VERKEHR (DE)
International Classes:
G01R31/42; G01R31/34; H03M3/00
Domestic Patent References:
| WO2001031770A1 | 2001-05-03 | |||
| WO1994011747A1 | 1994-05-26 | |||
| WO2015193439A1 | 2015-12-23 |
Foreign References:
| DE102014108667A1 | 2015-12-24 | |||
| EP1705493A1 | 2006-09-27 | |||
| DE102014108667A1 | 2015-12-24 |
Other References:
TI DESIGNS: "Isolated Current Shunt and Voltage Measurement for Motor Drives Using AM437x", 28 February 2015 (2015-02-28), pages 1 - 47, XP055579235, Retrieved from the Internet [retrieved on 20190409]
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