Real-Time Ton/Toff adjustment and fault prediction in high-voltage IGBT serial switch for pulsed power applications
This paper presents a control architecture for dynamic voltage balancing in high-voltage IGBT stacks, addressing transient overvoltage phenomena during switching transitions. The system integrates a three-layer protection scheme - local RC snubbers, TVS diodes, and a global snubber - with adaptive g...
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| Language: | English |
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Polish Academy of Sciences
2025-07-01
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| Series: | International Journal of Electronics and Telecommunications |
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| Online Access: | https://journals.pan.pl/Content/135757/25-5175-Bu%C5%82ka_sk.pdf |
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| author | Sylwester Bułka |
| author_facet | Sylwester Bułka |
| author_sort | Sylwester Bułka |
| collection | DOAJ |
| description | This paper presents a control architecture for dynamic voltage balancing in high-voltage IGBT stacks, addressing transient overvoltage phenomena during switching transitions. The system integrates a three-layer protection scheme - local RC snubbers, TVS diodes, and a global snubber - with adaptive gate timing correction at 20 ns resolution. Realtime edge control is performed locally for each device, based on optical feedback and independent Ton/Toff adjustment. A reduced 14-dimensional control space is achieved by anchoring a reference transistor, ensuring temporal stability and synchronization. The operational behavior of TVS devices under burst-mode stress is characterized as transitional buffering during system tuning. Additionally, methods for predictive degradation analysis-based on UCES(on), Ton/Toff drift, thermal trends, and correction statistics - are outlined, supporting fault diagnostics and preventive maintenance strategies. Preliminary results obtained from the prototype system indicate that it is feasible to develop an algorithm that exhibits desirable trends in adaptive regulation, supporting the overall concept of closedloop switching control in stacked HV structures. |
| format | Article |
| id | doaj-art-4ba6f76072244f86ad81d702b809e042 |
| institution | DOAJ |
| issn | 2081-8491 2300-1933 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | International Journal of Electronics and Telecommunications |
| spelling | doaj-art-4ba6f76072244f86ad81d702b809e0422025-08-20T02:39:25ZengPolish Academy of SciencesInternational Journal of Electronics and Telecommunications2081-84912300-19332025-07-01vol. 71No 316https://doi.org/10.24425/ijet.2025.153631Real-Time Ton/Toff adjustment and fault prediction in high-voltage IGBT serial switch for pulsed power applicationsSylwester Bułka0Institute of Nuclear Chemistry and Technology, PolandThis paper presents a control architecture for dynamic voltage balancing in high-voltage IGBT stacks, addressing transient overvoltage phenomena during switching transitions. The system integrates a three-layer protection scheme - local RC snubbers, TVS diodes, and a global snubber - with adaptive gate timing correction at 20 ns resolution. Realtime edge control is performed locally for each device, based on optical feedback and independent Ton/Toff adjustment. A reduced 14-dimensional control space is achieved by anchoring a reference transistor, ensuring temporal stability and synchronization. The operational behavior of TVS devices under burst-mode stress is characterized as transitional buffering during system tuning. Additionally, methods for predictive degradation analysis-based on UCES(on), Ton/Toff drift, thermal trends, and correction statistics - are outlined, supporting fault diagnostics and preventive maintenance strategies. Preliminary results obtained from the prototype system indicate that it is feasible to develop an algorithm that exhibits desirable trends in adaptive regulation, supporting the overall concept of closedloop switching control in stacked HV structures.https://journals.pan.pl/Content/135757/25-5175-Bu%C5%82ka_sk.pdfmicrowave klystron modulatorhv pulse switchadaptive regulationpulse slope correctionseries transistor hv ballancing |
| spellingShingle | Sylwester Bułka Real-Time Ton/Toff adjustment and fault prediction in high-voltage IGBT serial switch for pulsed power applications International Journal of Electronics and Telecommunications microwave klystron modulator hv pulse switch adaptive regulation pulse slope correction series transistor hv ballancing |
| title | Real-Time Ton/Toff adjustment and fault prediction in high-voltage IGBT serial switch for pulsed power applications |
| title_full | Real-Time Ton/Toff adjustment and fault prediction in high-voltage IGBT serial switch for pulsed power applications |
| title_fullStr | Real-Time Ton/Toff adjustment and fault prediction in high-voltage IGBT serial switch for pulsed power applications |
| title_full_unstemmed | Real-Time Ton/Toff adjustment and fault prediction in high-voltage IGBT serial switch for pulsed power applications |
| title_short | Real-Time Ton/Toff adjustment and fault prediction in high-voltage IGBT serial switch for pulsed power applications |
| title_sort | real time ton toff adjustment and fault prediction in high voltage igbt serial switch for pulsed power applications |
| topic | microwave klystron modulator hv pulse switch adaptive regulation pulse slope correction series transistor hv ballancing |
| url | https://journals.pan.pl/Content/135757/25-5175-Bu%C5%82ka_sk.pdf |
| work_keys_str_mv | AT sylwesterbułka realtimetontoffadjustmentandfaultpredictioninhighvoltageigbtserialswitchforpulsedpowerapplications |