Title:
SWITCHING CONTROL DEVICE, SWITCHING POWER SUPPLY DEVICE, AND POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/042392
Kind Code:
A1
Abstract:
The switching control device according to an embodiment of the present invention comprises: a time measurement circuit for measuring time from a time point when the voltage between both terminals of a first switching element in an off-state from among a plurality of switching elements included in at least either an inverter circuit or a rectifier smoothing circuit becomes a reference voltage or less to a time point when the first switching element switches from the off-state to an on-state and for outputting the result as a measured time; an integration circuit for comparing the measured time with the reference time and obtaining the integral value of the error between the measured time and the reference time; and a drive circuit for setting, as needed in accordance with the integral value of the error, a delay time from a time point when a second switching element of the plurality of switching elements switches from an on-state to an off-state to a time point when the first switching element switches from the off-state to the on-state and controlling each of the switching operations of the plurality of switching elements using the set delay time.
Inventors:
MATSUURA KEN (JP)
Application Number:
PCT/JP2021/034388
Publication Date:
March 23, 2023
Filing Date:
September 17, 2021
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H02M3/28
Foreign References:
| JP2015204726A | 2015-11-16 | |||
| JP2021108522A | 2021-07-29 | |||
| JP2013021758A | 2013-01-31 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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