Driving control device, vehicle-onboard power supply system, and vehicle
AssigneeRohm Co., Ltd.
InventorKiminobu SATO
Life of this patent
Estimating the term…
Abstract
A driving control device for controlling the driving of the gate of a cut-off NMOS transistor arranged to be connectable between a first power supply circuit and a second power supply circuit includes a boost circuit configured to feed a gate control voltage to the gate and a controller configured, in start-up control for the cut-off NMOS transistor, to keep the current capacity of the boost circuit during start-up at a first current capacity and, after that, to switch the current capacity of the boost circuit to a second current capacity higher than the first current capacity.
Claims9
A driving control device for controlling driving of a gate of a cut-off NMOS transistor arranged to be connectable between a first power supply circuit and a second power supply circuit, the driving control device comprising:
- a boost circuit configured to feed a gate control voltage to the gate;
- and
- a controller configured, in start-up control for the cut-off NMOS transistor, to keep a current capacity of the boost circuit during start-up at a first current capacity and, after that, to switch the current capacity of the boost circuit to a second current capacity higher than the first current capacity.
Dependencies are inferred from the claim text.