Title:
電子制御装置
Document Type and Number:
Japanese Patent JP6773620
Kind Code:
B2
Abstract:
The ECU includes first and second power terminals, first and second voltage limiting elements, first and second diodes, and a power supply IC. A voltage is applied to the first power terminal from a battery, and a voltage is applied to the second power terminal from the battery via a start switch. The first voltage limiting element is provided between the first power terminal and an input terminal of the power supply IC. The cathode of the first diode is connected to the input terminal of the power supply IC. The second voltage limiting element is provided between the second power terminal and the anode of the first diode. The cathode of the second diode is connected to the anode of the first diode, and the anode is grounded. A limit voltage of the first voltage limiting element is greater than a limit voltage of the second voltage limiting element.
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Inventors:
Hiroo Katabuchi
Application Number:
JP2017177552A
Publication Date:
October 21, 2020
Filing Date:
September 15, 2017
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
H02M3/00
Domestic Patent References:
| JP2013151220A | ||||
| JP2005149092A | ||||
| JP2015080955A |
Attorney, Agent or Firm:
Moriaki Ogawa
Haruyuki Nishiyama
Mitsuji Sekiya
Haruyuki Nishiyama
Mitsuji Sekiya