Improved Efficiency in Power Factor Correction Circuits with a pn-Gated SiC FET
2007 ◽
Vol 556-557
◽
pp. 995-998
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Keyword(s):
The purpose of this paper is to present an all-SiC switched AC-DC converter using active power factor correction. The typical boost-converter approach is employed using continuous conduction mode. A SiC Schottky barrier diode performs the free-wheeling diode function, and a 600 V, 0.12 % SiC vertical junction field effect transistor performs the switching function under the control of a Fairchild ML4821 integrated circuit. The converter is operable off-line over the full universal voltage range (85-260 VAC), but it was optimized for a 400-600 W application operating at 208 VAC. Results are presented that demonstrate extremely high efficiency at a switching frequency of 500 kHz, the highest operating frequency of the ML4821.
2016 ◽
Vol 7
(2)
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pp. 450
2021 ◽
Vol 68
(2)
◽
pp. 1197-1209
Keyword(s):
1995 ◽
Vol 53
◽
pp. 518-519
Keyword(s):
2020 ◽
Vol 9
(12)
◽
pp. 318-322
2020 ◽
Vol 8
(4)
◽
pp. 4025-4036
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2001 ◽
Vol 148
(2)
◽
pp. 202
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Keyword(s):