Title:
SIGNAL TRANSFER DEVICE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/112492
Kind Code:
A1
Abstract:
A signal transfer device 200 comprises: a logic 214 of a primary circuit system 200p; a logic 225 and a driver 226 of a secondary circuit system 200s; and transformer circuits TR1 and TR2 that provide an electrical insulation between the primary circuit system 200p and the secondary circuit system 200s and that transfer driving pulse signals (ON, OFF1, OFF2) and feedback pulse signals (OSFBH, OSFBL) between the logics 214 and 225. The second logic 225 has a function of determining a logic level of a gate signal VG by driving the driver 226 in response to the driving pulse signals (ON, OFF1, OFF2), a function of driving, in the form of pulses in a first pulse quantity at a prescribed period, the feedback pulse signals (OSFBH, OSFBL) when the secondary circuit system 200s is in a normal state, and a function of performing switching of the first pulse quantity in accordance with the driving performance of the driver 226.
Inventors:
ARIMURA MASAHIKO (JP)
Application Number:
PCT/JP2022/039712
Publication Date:
June 22, 2023
Filing Date:
October 25, 2022
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H03K19/0175; H01L21/822; H01L27/04; H02M1/08; H03K17/691; H04L25/02
Domestic Patent References:
| WO2011055611A1 | 2011-05-12 |
Foreign References:
| US9673809B1 | 2017-06-06 | |||
| JP2017017788A | 2017-01-19 | |||
| JP2013051547A | 2013-03-14 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
Download PDF: