Voltage control apparatus and information processing apparatus
AssigneeFujitsu Limited
InventorsShogo Hiyama, Kentarou Yuasa
Life of this patent
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Abstract
A voltage control apparatus includes a boost converter configured to convert an input voltage to a voltage equal to or higher than a first voltage in an operative state and directly output the input voltage in an inoperative state, a buck-boost converter coupled with the boost converter in parallel and configured to convert the input voltage to a second voltage lower than the first voltage, a memory, and a processor coupled to the memory and configured to keep the buck-boost converter in the operative state, set the boost converter to the inoperative state when the input voltage is equal to or higher than the first voltage, and change the boost converter to the operative state when the input voltage is lower than the first voltage.
Claims4
A voltage control apparatus comprising:
- a boost converter configured to convert an input voltage to a voltage equal to or higher than a first voltage in an operative state and directly output the input voltage in an inoperative state;
- a buck-boost converter coupled with the boost converter in parallel and configured to convert the input voltage to a second voltage lower than the first voltage;
- a memory;
- and
- a processor coupled to the memory and configured to:
- keep the buck-boost converter in the operative state,
- set the boost converter to the inoperative state when the input voltage is equal to or higher than the first voltage, and
- change the boost converter to the operative state when the input voltage is lower than the first voltage.
An information processing apparatus comprising:
- a boost converter configured to convert an input voltage to a voltage equal to or higher than a first voltage in an operative state and directly output the input voltage in an inoperative state;
- a buck-boost converter coupled with the boost converter in parallel and configured to convert the input voltage to a second voltage lower than the first voltage;
- a conversion circuit configured to convert output voltages of the boost converter and the buck-boost converter to a third voltage lower than the second voltage;
- a memory;
- a first processor coupled to the memory and configured to:
- keep the buck-boost converter in the operative state,
- set the boost converter to the inoperative state when the input voltage is equal to or higher than the first voltage, and
- change the boost converter to the operative state when the input voltage is lower than the first voltage;
- and
- a second processor configured to operate with supplied the third voltage.
Dependencies are inferred from the claim text.