Power supply device
AssigneeVolvo Truck Corporation
InventorsYoshiaki Yamada, Takayuki Tsuchiya, Kunihiko Hikiri, Koichi Itani, Hiroshi Toyama, Noriaki Miyake
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Abstract
A power supply device for supplying power to a load by combining a secondary battery and a capacitor includes a bypass switch which enables power to be directly supplied to the load from the capacitor by being switched to a connected state when a voltage of the capacitor is a voltage capable of driving the load, and a first DC-DC converter which enables the voltage of the capacitor to be stepped up and supplied to the load when the voltage of the capacitor drops below a minimum voltage capable of driving the load.
Claims10
A power supply device for supplying power to a load by combining a secondary battery and a capacitor, comprising:
- a bypass switch adapted to enable power to be directly supplied to the load from the capacitor by being switched to a connected state when a voltage of the capacitor is a voltage capable of driving the load;
- and
- a first DC-DC converter adapted to enable the voltage of the capacitor to be stepped up and supplied to the load when the voltage of the capacitor drops below a minimum voltage capable of driving the load.
Dependencies are inferred from the claim text.