Sughrue Mion, PLLC
On-vehicle electronic control device
An IC element 20a provided with input-output interface circuits 23, 24 and a control circuit 22a includes: a constant voltage control circuit 21a comprising a switching circuit 25a for conduction control of a switching element 11a connected to a power supply terminal 2a of an on-vehicle electronic control device 1a; and a comparison circuit 26 for opening the switching element 11a when a voltage of the first terminal Vdd1, to which an output voltage of the switching element 11a is supplied, is below a predetermined value; in which the input-output interface circuits 23, 24 is supplied with power from the first terminal Vdd1, while the control circuit 22a is supplied with power from the second terminal Vdd2 connected to an output circuit of the switching element 11a. 
Mitsubishi Denki Kabushiki Kaisha
G
G05F
inventional
Manabu Tetsushi Katsuya Kohji
Yamashita Watanabe Nakamoto Hashimoto