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This paper describes a power loss analysis of a proposed tapped-inductor buck converter which suitable for home DC power supply system. A laboratory prototype of a coin size (34mm × 26mm × 5mm) with DC 48V input to 1.2V/30A output was built and tested to verify the accuracy of the loss analysis. As a result, about 90% efficiency under middle and heavy load region can be achieved at 500kHz switching...
This paper discusses suitability of a novel tapped-inductor converter for home DC power supply system. Advantages such as high efficiency, compact size, low cost and high reliability are achieved by the characteristics like the buck converter. A laboratory prototype of a coin size (34mm × 26mm × 5mm), which can convert the voltage from 48V input to 1.2V/30A output, was tested. As a result, maximum...
A partial-resonant tapped-inductor converter with an auxiliary switch is proposed. The circuit construction is the same as a conventional tapped-inductor converter with active clamp circuit, but the drive timing for the auxiliary switch is different from the conventional one. As a result the output stability is improved as compared with the conventional active clamp one. Furthermore, zero current...
A new control method for boost and buck-boost converters employing a hysteretic PWM controller is presented. The triangular voltage obtained from a simple RC network connected to an auxiliary winding of the inductor is superimposed to the output voltage and fed to a hysteretic comparator as a feedback signal. The presented control method provides no steady-state error voltage on the output and excellent...
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