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A HARDWARE-EFFICIENT SELF-TUNED OUTPUT CAPACITOR CURRENT AND TIME CONSTANT ESTIMATOR FOR INDIRECT ENERGY TRANSFER CONVERTERS BASED ON DYNAMIC VOLTAGE SLOPE ADJU
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| Author(s) |
Shadi DASHMIZ |
| Abstract |
This paper introduces a novel hardware-efficient auto-tuned output capacitor current and time- constant estimator for indirect energy transfer converters, which is based on well-known principle of the utilization of an auxiliary RC circuit and time constant matching. To provide accurate current measurement and early fault detection of the system while avoiding complex calculations/hardware usually existing in other auto-tuned methods, the reconstruction of the time constant is performed through a simple detection of the polarity of the slope of the estimator voltage during the main switch off time. The effectiveness of the estimator has been experimentally verified with a 20 W boost-based prototype, demonstrating about 97\% of accuracy in the instantaneous current and time-constant measurements. |
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| Filename: | 0643-epe2016-full-21504725.pdf |
| Filesize: | 823.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2017-04-13 by System |
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