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This paper presents a new high efficiency DC-DC converter for electric double layer capacitor (EDLC). The bi-directional two-stage converter combined with a coupling capacitor and a coupled inductor (CCCI) is used in order to obtain high power efficiency at large voltage conversion ratio. Static characteristics of the proposed converter are analyzed and confirmed by experiments. As a result it is...
This paper presents a new LLC converter combined with switched capacitor for high voltage applications. In the proposed converter, the flying capacitor of the switched capacitor is divided into two parts, and they are used as resonance capacitors of an LLC converter. The proposed method reduces the switch voltage stress to a half of the input voltage, and the current in switches are a half of that...
This paper proposes a new two-stage converter with a coupling capacitor and a coupled inductor. In order to downsize the two-stage converter, two inductors are tightly coupled together. Circuit operation is described in detail. Steady state analysis is performed and confirmed by experiments. It is clarified that the proposed converter has advantages of larger voltage conversion ratio and higher power...
If the voltage of rectangular waveform produced in the inverter is used as a dc power supply through a half-wave rectifier, a smoothing capacitor and reactor can be made extremely small by using asymmetric two phase system. Although this basic concept has been already reported, the basic operation of the amplitude modulation converter, used in this system as a key element, has not been clarified yet...
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