Title:
SWITCHING POWER SUPPLY DEVICE, CALIBRATION METHOD THEREFOR, AND DIGITAL PROCESSOR
Document Type and Number:
WIPO Patent Application WO/2023/157662
Kind Code:
A1
Abstract:
In a calibration step, with a switching power supply device 100 operated at a current that is to trigger overcurrent protection during normal operation of the switching power supply device 100, a search processing unit 220 changes a set value DSET and searches for a critical value corresponding to a boundary determining whether or not the overcurrent protection is to be triggered. In the calibration step, a digital processor 200 reads the set value DSET, which is based on the critical value searched for by the search processing unit 220, into a non-volatile memory 210. During normal operation of the switching power supply device 100, the digital processor 200 reads the set value DSET from the non-volatile memory 210 and sets said value in an overcurrent detection circuit 130.
Inventors:
HORII KAZUHIRO (JP)
Application Number:
PCT/JP2023/003395
Publication Date:
August 24, 2023
Filing Date:
February 02, 2023
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H02M3/28
Domestic Patent References:
| WO2021015388A1 | 2021-01-28 |
Foreign References:
| JP2009136105A | 2009-06-18 | |||
| JP2001119933A | 2001-04-27 | |||
| JPS63299767A | 1988-12-07 | |||
| JP2006136146A | 2006-05-25 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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