Power supply apparatus
First Claim
1. A power supply apparatus for supplying power to a device connected thereto, the apparatus comprising:
- a power supply;
a voltage conversion unit which varies a voltage inputted from said power supply to a predetermined voltage and outputs the varied voltage to the device;
an ammeter which measures an output current value of said power supply apparatus; and
a control unit which controls variation in voltage caused by said voltage conversion unit,wherein said control unit boosts the voltage outputted from said power supply in stages and detects, by detecting a change in the output current value, that the output voltage of said power supply apparatus boosted by said voltage conversion unit has reached a voltage capable of driving the device.
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Accused Products
Abstract
Provided is a technology where a voltage capable of driving a mobile device, to which a power supply apparatus is connected, is automatically detected. The power supply apparatus, for supplying power to the device connected, includes a power supply, a voltage conversion unit which varies a voltage inputted from the power supply to a predetermined voltage and outputs the varied voltage to the device, an ammeter which measures an output current value of the power supply apparatus, and a control unit which controls the voltage varied by the voltage conversion unit. The control unit boosts the voltage outputted from the power supply in stages and detects, by detecting a change in the output current value, that the output voltage of the power supply apparatus boosted by the voltage conversion unit has reached a voltage capable of driving the device.
43 Citations
9 Claims
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1. A power supply apparatus for supplying power to a device connected thereto, the apparatus comprising:
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a power supply; a voltage conversion unit which varies a voltage inputted from said power supply to a predetermined voltage and outputs the varied voltage to the device; an ammeter which measures an output current value of said power supply apparatus; and a control unit which controls variation in voltage caused by said voltage conversion unit, wherein said control unit boosts the voltage outputted from said power supply in stages and detects, by detecting a change in the output current value, that the output voltage of said power supply apparatus boosted by said voltage conversion unit has reached a voltage capable of driving the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification