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Patent Searching and Data


Title:
AC TO DC CONVERTER WITH PARALLEL CONVERTER
Document Type and Number:
WIPO Patent Application WO/2019/158120
Kind Code:
A1
Abstract:
The disclosure relates to technology for an apparatus having an AC rectifier configured to generate one or more rectified signals from an alternating current (AC) signal, bus having a positive line and a negative line, parallel converter connected between the positive line and the negative line, and bulk capacitor coupled to the parallel converter. The bus is connected to the AC rectifier to receive a first of the rectified signals between the positive line and the negative line. The apparatus has a controller configured to operate the parallel converter in a first mode in which energy from a second of the rectified signals from the AC rectifier is stored in the bulk capacitor and a second mode in which the energy stored in the bulk capacitor is discharged to the bus to increase a voltage on the bus during at least an initial portion of the second mode.

Inventors:
DAI HEPING (US)
Application Number:
PCT/CN2019/075163
Publication Date:
August 22, 2019
Filing Date:
February 15, 2019
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02M7/04
Foreign References:
US20160181931A12016-06-23
CN1845430A2006-10-11
CN103401466A2013-11-20
CN103607107A2014-02-26
US20170201202A12017-07-13
JPH07245956A1995-09-19
Other References:
H. SHINJ.-I. HA: "2014 International Power Electronics and Application Conference and Exposition", 5 November 2014, IEEE, article "Active DC-Link Circuit for Single-Phase Diode Rectifier System with Small Capacitance", pages: 875 - 880
Y. OHNUMAJ.-I. ITOH: "2010 Energy Conversion Conference and Exposition", 12 September 2020, IEEE, article "A Control Method for a Single-to-three-phase Power Converter with an Active Buffer and a Charge Circuit", pages: 1801 - 1807
See also references of EP 3753099A4
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