IEICE TRANSACTIONS on transactions
Realization of a Switched-Capacitor AC-DC Converter with a Low Output-Voltage Ripple and Its Design
Summary :
An AC-DC converter using a new switched-capacitor (SC) transformer and its design are presented. The features of this circuit are as follows. (1) The maximum voltage of capacitors is 1/n times that of a condenser-input-type rectificer circuit, where n is the number of chargetransfer capacitors. (2) The output voltage ripple is small, since the equivalent smoothing capacitor value is n times that of conventional SC transformers (series-parallel switching type). Using the presented design method, each element value is designed from the specifications of a test circuit. The experimental results of the test circuit show that (1) the efficiency of the SC transformer is very high (95%), and the total efficiency is 74% due to the losses of the clock generator and the control circuit, (2) the maximum output power is 40 W, (3) the value of the inrush current of the tested converter is only twice the value of the steady state current. The measured characteristics showed good agreement with the calculated ones.
- Publication
- IEICE TRANSACTIONS on transactions Vol.E73-E No.9 pp.1434-1441
- Publication Date
- 1990/09/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Switched-Mode Power Supplies for Electronics)
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Ichirou OOTA, Fumio UENO, Takahiro INOUE, HUANG Bing Lian, "Realization of a Switched-Capacitor AC-DC Converter with a Low Output-Voltage Ripple and Its Design" in IEICE TRANSACTIONS on transactions,
vol. E73-E, no. 9, pp. 1434-1441, September 1990, doi: .
Abstract: An AC-DC converter using a new switched-capacitor (SC) transformer and its design are presented. The features of this circuit are as follows. (1) The maximum voltage of capacitors is 1/n times that of a condenser-input-type rectificer circuit, where n is the number of chargetransfer capacitors. (2) The output voltage ripple is small, since the equivalent smoothing capacitor value is n times that of conventional SC transformers (series-parallel switching type). Using the presented design method, each element value is designed from the specifications of a test circuit. The experimental results of the test circuit show that (1) the efficiency of the SC transformer is very high (95%), and the total efficiency is 74% due to the losses of the clock generator and the control circuit, (2) the maximum output power is 40 W, (3) the value of the inrush current of the tested converter is only twice the value of the steady state current. The measured characteristics showed good agreement with the calculated ones.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e73-e_9_1434/_p
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@ARTICLE{e73-e_9_1434,
author={Ichirou OOTA, Fumio UENO, Takahiro INOUE, HUANG Bing Lian, },
journal={IEICE TRANSACTIONS on transactions},
title={Realization of a Switched-Capacitor AC-DC Converter with a Low Output-Voltage Ripple and Its Design},
year={1990},
volume={E73-E},
number={9},
pages={1434-1441},
abstract={An AC-DC converter using a new switched-capacitor (SC) transformer and its design are presented. The features of this circuit are as follows. (1) The maximum voltage of capacitors is 1/n times that of a condenser-input-type rectificer circuit, where n is the number of chargetransfer capacitors. (2) The output voltage ripple is small, since the equivalent smoothing capacitor value is n times that of conventional SC transformers (series-parallel switching type). Using the presented design method, each element value is designed from the specifications of a test circuit. The experimental results of the test circuit show that (1) the efficiency of the SC transformer is very high (95%), and the total efficiency is 74% due to the losses of the clock generator and the control circuit, (2) the maximum output power is 40 W, (3) the value of the inrush current of the tested converter is only twice the value of the steady state current. The measured characteristics showed good agreement with the calculated ones.},
keywords={},
doi={},
ISSN={},
month={September},}
Copy
TY - JOUR
TI - Realization of a Switched-Capacitor AC-DC Converter with a Low Output-Voltage Ripple and Its Design
T2 - IEICE TRANSACTIONS on transactions
SP - 1434
EP - 1441
AU - Ichirou OOTA
AU - Fumio UENO
AU - Takahiro INOUE
AU - HUANG Bing Lian
PY - 1990
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E73-E
IS - 9
JA - IEICE TRANSACTIONS on transactions
Y1 - September 1990
AB - An AC-DC converter using a new switched-capacitor (SC) transformer and its design are presented. The features of this circuit are as follows. (1) The maximum voltage of capacitors is 1/n times that of a condenser-input-type rectificer circuit, where n is the number of chargetransfer capacitors. (2) The output voltage ripple is small, since the equivalent smoothing capacitor value is n times that of conventional SC transformers (series-parallel switching type). Using the presented design method, each element value is designed from the specifications of a test circuit. The experimental results of the test circuit show that (1) the efficiency of the SC transformer is very high (95%), and the total efficiency is 74% due to the losses of the clock generator and the control circuit, (2) the maximum output power is 40 W, (3) the value of the inrush current of the tested converter is only twice the value of the steady state current. The measured characteristics showed good agreement with the calculated ones.
ER -
English
