Compact capacitor charger using resonant MOSFET inverter

Sakugawa, Takashi; Matsumoto, Yuto; Itoh, Yuta; Akiyama, H.

doi:10.1109/ppc.2011.6191623

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…A pulsed power generator consists of a controller, capacitor charger and pulsed power generator [5][6]. The controller contains a microprocessor, such as a PIC (Peripheral Interface Controller) or FPGA (Field Programmable Gate Array).…”

Section: Introductionmentioning

confidence: 99%

A study on capacitor charger using variable frequency inverter as a high repetitive pulsed power modulator

Kajiwara

Asou

Sakugawa

et al. 2014

2014 IEEE International Power Modulator and High Voltage Conference (IPMHVC)

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Various methods exist for capacitor charging circuits, but for all, a high frequency inverter is indispensable to realize high repetitive operation of the pulsed power modulator. While high frequency operation of the inverter is effective in charging voltage accuracy, the switching loss increases in proportion to the frequency of the inverter. This study utilizes a half-bridge circuit as inverter circuit to the charger characterized by the following components: The switching device is a SiC-based MOSFET (SiliconCarbide based Metal Oxide Semiconductor Field Effect Transistor), and the converter circuit uses high-speed SiCbased diodes. After simulating capacitor charging circuit loss while varying operating frequency of the variable frequency inverter, we analyzed the stability of the charging voltage, continuous operation, and downsizing of charger.

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Section: Introductionmentioning

confidence: 99%