Title:
LINEAR POWER SOURCE DEVICE AND POWER SOURCE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/140091
Kind Code:
A1
Abstract:
A linear power source device (1A) comprises: a first mirror transistor (M2A) configured to be able to generate first mirror current (Im2A); a second mirror transistor (M3A) configured to be able to generate second mirror current (Im3A); a switch circuit (SWA) that switches, on the basis of a switching signal (ENA), between outputting of the first mirror current from a current transmission/reception terminal (TiA) to the outside and receiving of external mirror current from the outside through the current transmission/reception terminal (TiA); and a comparison unit (CMA) that compares the external mirror current with the second mirror current, and, on the basis of the comparison result, draws out current from a second node (N2A), through which a first feedback resistor (R1A) and a second feedback resistor (R2A) are connected, or injects current into the second node.
Inventors:
INOUE HIROKI (JP)
WATANABE ATSUHIRO (JP)
IWAHASHI ISAMU (JP)
WATANABE ATSUHIRO (JP)
IWAHASHI ISAMU (JP)
Application Number:
PCT/JP2022/048559
Publication Date:
July 27, 2023
Filing Date:
December 28, 2022
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
G05F1/56
Foreign References:
| JP2020004214A | 2020-01-09 | |||
| JPH10260743A | 1998-09-29 | |||
| JPS54104947U | 1979-07-24 | |||
| US20200042026A1 | 2020-02-06 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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