Title:
過電流保護装置
Document Type and Number:
Japanese Patent JP6702294
Kind Code:
B2
Abstract:
An overcurrent protection device is to be provided between a power supply and a load circuit including an electric load and an electric wire electrically connected with each other, and includes a switching element, a current detector, a characteristic estimation portion, and a controller. The switching element switches flowing and interrupting of a load current that flows from the power supply to the electric load. The current detector detects the load current. The characteristic estimation portion estimates a thermal characteristic of the electric wire based on the load current detected by the current detector. The controller outputs an overcurrent protection signal for interrupting the load current so as to protect the load circuit from an overcurrent to the switching element based on the thermal characteristic estimated by the characteristic estimation portion and the load current detected by the current detector.
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Inventors:
Fushiya Tomokatsu
Naoyuki Yasuda
Manabu Morita
Jiro Ito
Shinji Oshita
Naoyuki Yasuda
Manabu Morita
Jiro Ito
Shinji Oshita
Application Number:
JP2017227083A
Publication Date:
June 03, 2020
Filing Date:
November 27, 2017
Export Citation:
Assignee:
Anden Co., Ltd.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H02H5/04; H02H3/08; H02H3/087
Domestic Patent References:
| JP9238425A | ||||
| JP9257859A |
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office