Title:
電力変換装置
Document Type and Number:
Japanese Patent JP7136039
Kind Code:
B2
Abstract:
To further downsize a transformer size by making a switching frequency high while maintaining control resolution of output voltage by reducing deviation in positive and negative current peak values by shortening as much as possible time required for detection of a trigger signal and output of a switching signal while suppressing increase in cost, and increasing time resolution when outputting a switching signal.SOLUTION: A trigger signal STG indicating that primary side current of a transformer Tr has achieved target current and a clock signal of a different phase are inputted in switching signal generating circuits 63 to 66. Respective switching signal generating circuit generates a switching signal turning one of second and fourth switching elements Q2 and Q4 from on to off and turning the other from off to on according to variation in the clock signal generated while the trigger signal STG is generated. An output circuit 67 outputs a switching signal generated earliest in the switching signal generating circuit as drive signals for driving the second and fourth switching elements Q2 and Q4.SELECTED DRAWING: Figure 4
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Inventors:
Ryota Kojima
Application Number:
JP2019143141A
Publication Date:
September 13, 2022
Filing Date:
August 02, 2019
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02M3/28; H02M3/335
Domestic Patent References:
| JP2014236596A | ||||
| JP2015143642A |
Foreign References:
| WO2007105487A1 |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo