A novel method of high frequency switching for dc-to-dc converter is presented. This method is based on the commutation with aid of inductor current, where a short interval (dead time) of both switches off is given for removing switching surges and switching losses. By the method of constant current-ripple using a saturable core, the condition of zero voltage switching is made independent of the duty ratio. The output voltage is regulated by pulse width modulation in the same way as that of the conventional converter of PWM control. The mechanism of commutation for giving a dead time is analyzed by assuming equivalent circuits, during which a zero voltage switching is realized. From calculations and experiments, it is found that a desired dead time is derived by connecting external capacitance to the gate-source terminal of the MOSFET.
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Kazurou HARADA, Hiroshi SAKAMOTO, Koosuke HARADA, "Dead Time Analysis of Inductor Commutation DC-to-DC Converter Controlled by a Small Saturable Core" in IEICE TRANSACTIONS on transactions,
vol. E73-E, no. 9, pp. 1442-1448, September 1990, doi: .
Abstract: A novel method of high frequency switching for dc-to-dc converter is presented. This method is based on the commutation with aid of inductor current, where a short interval (dead time) of both switches off is given for removing switching surges and switching losses. By the method of constant current-ripple using a saturable core, the condition of zero voltage switching is made independent of the duty ratio. The output voltage is regulated by pulse width modulation in the same way as that of the conventional converter of PWM control. The mechanism of commutation for giving a dead time is analyzed by assuming equivalent circuits, during which a zero voltage switching is realized. From calculations and experiments, it is found that a desired dead time is derived by connecting external capacitance to the gate-source terminal of the MOSFET.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e73-e_9_1442/_p
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@ARTICLE{e73-e_9_1442,
author={Kazurou HARADA, Hiroshi SAKAMOTO, Koosuke HARADA, },
journal={IEICE TRANSACTIONS on transactions},
title={Dead Time Analysis of Inductor Commutation DC-to-DC Converter Controlled by a Small Saturable Core},
year={1990},
volume={E73-E},
number={9},
pages={1442-1448},
abstract={A novel method of high frequency switching for dc-to-dc converter is presented. This method is based on the commutation with aid of inductor current, where a short interval (dead time) of both switches off is given for removing switching surges and switching losses. By the method of constant current-ripple using a saturable core, the condition of zero voltage switching is made independent of the duty ratio. The output voltage is regulated by pulse width modulation in the same way as that of the conventional converter of PWM control. The mechanism of commutation for giving a dead time is analyzed by assuming equivalent circuits, during which a zero voltage switching is realized. From calculations and experiments, it is found that a desired dead time is derived by connecting external capacitance to the gate-source terminal of the MOSFET.},
keywords={},
doi={},
ISSN={},
month={September},}
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TY - JOUR
TI - Dead Time Analysis of Inductor Commutation DC-to-DC Converter Controlled by a Small Saturable Core
T2 - IEICE TRANSACTIONS on transactions
SP - 1442
EP - 1448
AU - Kazurou HARADA
AU - Hiroshi SAKAMOTO
AU - Koosuke HARADA
PY - 1990
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E73-E
IS - 9
JA - IEICE TRANSACTIONS on transactions
Y1 - September 1990
AB - A novel method of high frequency switching for dc-to-dc converter is presented. This method is based on the commutation with aid of inductor current, where a short interval (dead time) of both switches off is given for removing switching surges and switching losses. By the method of constant current-ripple using a saturable core, the condition of zero voltage switching is made independent of the duty ratio. The output voltage is regulated by pulse width modulation in the same way as that of the conventional converter of PWM control. The mechanism of commutation for giving a dead time is analyzed by assuming equivalent circuits, during which a zero voltage switching is realized. From calculations and experiments, it is found that a desired dead time is derived by connecting external capacitance to the gate-source terminal of the MOSFET.
ER -