| Autor: |
Scott S. Gerber, B. Ray, Richard L. Patterson |
| Rok vydání: |
2002 |
| Předmět: |
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| Zdroj: |
IECEC 96. Proceedings of the 31st Intersociety Energy Conversion Engineering Conference. |
| DOI: |
10.1109/iecec.1996.552943 |
| Popis: |
The low temperature (25/spl deg/C to -175/spl deg/C) performance of a 120 W, 100 kHz, 42/12 V phase-shifted zero-voltage-switched full-bridge DC-DC power converter designed with commercially available components is reported. Its efficiency increased from 80.8% at 25/spl deg/C to 81.8% at -175/spl deg/C. The power MOSFET and filter inductor loss decreased whereas the diode rectifier loss increased with decreasing temperatures. Low temperature operation of the open-loop control circuit based on CMOS and BiCMOS ICs is also discussed. The switching frequency of the converter increased with decreasing temperatures with maximum deviation of less than 4% compared to the room temperature operation. The converter successfully restarted at low temperatures without any visible degradation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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