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Title:
USB INTERFACE CIRCUIT AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/234268
Kind Code:
A1
Abstract:
A pull-up circuit 210 includes variable current sources CS1, CS2 that supply a current to CC pins of a connector 102. A voltage detection circuit 220 measures voltages V1, V2 of a CC1 pin and a CC2 pin. A processing unit 230 controls the variable current sources CS1, CS2 and detects moisture adhering to the CC pins CC1, CC2 on the basis of the output of the voltage detection circuit 220.

Inventors:
ITAKURA NOBUTAKA (JP)
Application Number:
PCT/JP2023/019976
Publication Date:
December 07, 2023
Filing Date:
May 29, 2023
Export Citation:
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Assignee:
ROHM CO LTD (JP)
International Classes:
G06F1/26; H02J1/00
Foreign References:
JP2021005995A2021-01-14
JP2021522766A2021-08-30
JP2020004265A2020-01-09
JP2020052959A2020-04-02
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
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