A high power factor rectifier associated with a ZCZVS PWM full-bridge inverter in a rectifier/inverter system

A high power factor rectifier associated with a ZCZVS PWM full-bridge inverter in a rectifier/inverter system

This work presents the operation and design of a high power factor AC-DC-AC power supply rated at 2 kW operating at high switching frequency. Good power factor is obtained using an AC-DC interleaved boost-flyback converter as a pre-regulator circuit associated with a nondissipative snubber without c...

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Bibliographische Detailangaben
Hauptverfasser: Gallo, C A, Chagas, M C, Tofoli, F L, Finzi Neto, R M
Format: Tagungsbericht
Sprache:eng
Schlagworte:
AC SMPS
Analog-digital conversion
Circuits
Electromagnetic interference
Leg
Power supplies
Pulse width modulation inverters
PWM Full-Bridge Inverter
Reactive power
Rectifiers
Snubbers
Switching frequency
ZCZVS
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Beschreibung
Zusammenfassung:This work presents the operation and design of a high power factor AC-DC-AC power supply rated at 2 kW operating at high switching frequency. Good power factor is obtained using an AC-DC interleaved boost-flyback converter as a pre-regulator circuit associated with a nondissipative snubber without commutation losses. Commutation losses are practically reduced to zero and EMI emission can also be minimized. The operation of the ZCZVS PWM full-bridge inverter operating at 30kHz in the high frequency leg and at 60Hz in low frequency leg is also investigated.
ISSN:0275-0473
2158-5210
DOI:10.1109/INTLEC.2010.5525667