Patent ID: 11962238
Assignee: HITACHI ASTEMO, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 3:
4. The electronic control unit according to claim 3, further comprising:
a switch arranged between a substrate terminal of the low-side switch and the GND; and
a plurality of diodes connected in series between a node connecting the high-side switch and the inductor, and the GND,
wherein the low-side switch is an NMOS, and
the switch is also controlled to the OFF state simultaneously as the low-side switch is controlled to the OFF state, the substrate terminal of the low-side switch and the GND are brought into a disconnected state, and a current flowing through the inductor is supplied from the GND through the plurality of diodes when the high-side switch is in the OFF state.