Analysis and Design of the Magnetic Amplifier With Synchronous Rectifier Circuits
Autor: | TZU-CHANG WANG, 王子昌 |
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Rok vydání: | 2004 |
Druh dokumentu: | 學位論文 ; thesis |
Popis: | 92 Multi-output is always one of the basic requirements for the users in the power supply system. In the past, it was not necessary to request all of the outputs of a power supply system with better voltage regulation in the application, only the main output was used to do the feedback control in the design in order to get a stable output. As for the other outputs, the output voltages were gotten from transformer coil couplers. This kind of design can be used only for the application which doesn't request exact voltage regulation. If better voltage regulation is required, the usual method is to add linear regulators at the required outputs and the output efficiency will be reduced. Therefore, it is usually applied when the small output power is needed. In order to improve the voltage stability, the magnetic amplifiers used as post regulators have become the best solution. Nevertheless, increasing the efficiency is the most important thing today when the power system needs low voltage, large current, high power and more stable output voltage. The synchronous rectifier circuit has become popular in switching power supply with low voltages and large currents to obtain high output efficiency. Nevertheless, the main application is only for the single output power supply, and it won't get both high efficiency and voltage stability at the same time in multi-output power systems. This thesis is to use magnetic amplifiers to get better individual voltage stability and use the synchronous rectifier technology to obtain high output efficiency. |
Databáze: | Networked Digital Library of Theses & Dissertations |
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