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EFFICIENT BIAS POWER SUPPLY FOR NON-ISOLATED DC/DC POWER CONVERSION APPLICATIONS
EFFICIENT BIAS POWER SUPPLY FOR NON-ISOLATED DC/DC POWER CONVERSION APPLICATIONS
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机译:非隔离式DC / DC电源转换应用的有效偏置电源
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摘要
Unique methods are disclosed to construct an efficient bias supply for a main non-isolated DC/DC power conversion system. Additional bias supplies developed by employing an arbitrary number of transformers and/or an arbitrary number of secondary windings can be used to provide bias power to other isolated and non-isolated power conversion systems. By employing a transformer in forward conversion mode the basic circuit of the efficient bias supply is built without using any extra switching controllers and power switches. Furthermore a new architecture for monitoring and selecting the bias power source to ensure smooth start-up and operation during abnormal conditions and/or maintaining optimum and efficient steady state operation of a power conversion system is disclosed.
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