A High-Input-Voltage Converter Operating at 200kHz

Satoshi OHTSU; Hisao ISHII; Takashi YAMASHITA; Toshiyuki SUGIURA

A High-Input-Voltage Converter Operating at 200kHz

Satoshi OHTSU, Hisao ISHII, Takashi YAMASHITA, Toshiyuki SUGIURA

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A new circuit and a transformer structure is described for a high-input-voltage converter operating at a high switching frequency. The two-MOSFET forward converter is suitable for a high-input-voltage converter. To increase the switching frequency, the reset period of the transformer core flux must be reduced. There are a few methods for decreasing the reset period. Increasing the transformer flyback voltage and reducing its stray capacitance are effective in decreasing the reset period without increasing power loss. A new two-MOSFET forward converter is proposed which uset the increased flyback voltage and a transformer structure to reduce the stray capacitance. The new converter using this transformer provides the basis for a 48-V, 100-W output, 270-V input converter operating at 200kHz with high efficiency (above 95%).

Publication: IEICE TRANSACTIONS on Communications Vol.E75-B No.11 pp.1151-1158

Publication Date: 1992/11/25

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Type of Manuscript: Special Section PAPER (Special Issue on Telecommunications Energy Systems and Switching Power Converters)

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Satoshi OHTSU, Hisao ISHII, Takashi YAMASHITA, Toshiyuki SUGIURA, "A High-Input-Voltage Converter Operating at 200kHz" in IEICE TRANSACTIONS on Communications, vol. E75-B, no. 11, pp. 1151-1158, November 1992, doi: .
Abstract: A new circuit and a transformer structure is described for a high-input-voltage converter operating at a high switching frequency. The two-MOSFET forward converter is suitable for a high-input-voltage converter. To increase the switching frequency, the reset period of the transformer core flux must be reduced. There are a few methods for decreasing the reset period. Increasing the transformer flyback voltage and reducing its stray capacitance are effective in decreasing the reset period without increasing power loss. A new two-MOSFET forward converter is proposed which uset the increased flyback voltage and a transformer structure to reduce the stray capacitance. The new converter using this transformer provides the basis for a 48-V, 100-W output, 270-V input converter operating at 200kHz with high efficiency (above 95%).
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e75-b_11_1151/_p

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@ARTICLE{e75-b_11_1151,
author={Satoshi OHTSU, Hisao ISHII, Takashi YAMASHITA, Toshiyuki SUGIURA, },
journal={IEICE TRANSACTIONS on Communications},
title={A High-Input-Voltage Converter Operating at 200kHz},
year={1992},
volume={E75-B},
number={11},
pages={1151-1158},
abstract={A new circuit and a transformer structure is described for a high-input-voltage converter operating at a high switching frequency. The two-MOSFET forward converter is suitable for a high-input-voltage converter. To increase the switching frequency, the reset period of the transformer core flux must be reduced. There are a few methods for decreasing the reset period. Increasing the transformer flyback voltage and reducing its stray capacitance are effective in decreasing the reset period without increasing power loss. A new two-MOSFET forward converter is proposed which uset the increased flyback voltage and a transformer structure to reduce the stray capacitance. The new converter using this transformer provides the basis for a 48-V, 100-W output, 270-V input converter operating at 200kHz with high efficiency (above 95%).},
keywords={},
doi={},
ISSN={},
month={November},}

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TY - JOUR
TI - A High-Input-Voltage Converter Operating at 200kHz
T2 - IEICE TRANSACTIONS on Communications
SP - 1151
EP - 1158
AU - Satoshi OHTSU
AU - Hisao ISHII
AU - Takashi YAMASHITA
AU - Toshiyuki SUGIURA
PY - 1992
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E75-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 1992
AB - A new circuit and a transformer structure is described for a high-input-voltage converter operating at a high switching frequency. The two-MOSFET forward converter is suitable for a high-input-voltage converter. To increase the switching frequency, the reset period of the transformer core flux must be reduced. There are a few methods for decreasing the reset period. Increasing the transformer flyback voltage and reducing its stray capacitance are effective in decreasing the reset period without increasing power loss. A new two-MOSFET forward converter is proposed which uset the increased flyback voltage and a transformer structure to reduce the stray capacitance. The new converter using this transformer provides the basis for a 48-V, 100-W output, 270-V input converter operating at 200kHz with high efficiency (above 95%).
ER -