Title:
OVERCURRENT PROTECTION CIRCUIT AND SEMICONDUCTOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/084646
Kind Code:
A1
Abstract:
Provided is an overcurrent protection circuit which is highly versatile and compatible with various switching elements. An overcurrent protection circuit 10 detects an overcurrent when an OCP interruption time TOCP has elapsed in a state of an OCP voltage value VOCP being more than an OCP threshold value Vref. The overcurrent protection circuit comprises: a plurality of comparators CMP11, CMP12, CMP13 which compare the OCP voltage value VOCP with a plurality of different OCP threshold values Vref11, Vref12, Vref13; and a plurality of interruption time generation circuits [(switch element Q11, resistor R11, and capacitor C11), (switch element Q12, resistor R12, and capacitor C12), (switch element Q13, resistor R13, and capacitor C13)] that generate different OCP interruption times TOCP11, TOCP12, TOCP13, for the respective comparators CMP11, CMP12, CMP13.
Inventors:
KAWASHIMA, Ryota (3-6-3, Kitano, Niiza-sh, Saitama 66, JP)
Application Number:
PCT/JP2022/039065
Publication Date:
April 25, 2024
Filing Date:
October 20, 2022
Export Citation:
Assignee:
SANKEN ELECTRIC CO.,LTD. (Kitano Niiza-sh, Saitama 66, JP)
International Classes:
H02H7/085
Attorney, Agent or Firm:
HORI, Shiroyuki et al. (8th Floor Atagoyamabengoshi Building, 1-6-7, Atago, Minato-k, Tokyo 02, JP)
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