POWER SUPPLY APPARATUS, PRINTER, AND CONTROL METHOD
First Claim
1. A power supply apparatus comprising:
- a power source unit configured to supply electric power to an electric load;
a capacitor connected to a power supply line extending from the power supply unit to the electric load;
a charge circuit configured to charge the capacitor while restricting a current value of the electric power supplied from the power source unit;
a specifying unit configured to specify a voltage value of the capacitor;
a first determination unit configured to determine whether the charge of the capacitor is completed in accordance with the voltage specified by the specifying unit; and
a second determination unit configured to determine whether the voltage specified by the specifying unit is equal to or smaller than an error threshold value after the first determination unit determines that the charge of the capacitor is completed,wherein, if the first determination unit determines that the charge of the capacitor is completed, the charge circuit switches a current value of the charge circuit to a first current value which is smaller than a current value supplied before the charge of the capacitor is completed, andthe second determination unit performs the determination while the first current value is supplied.
1 Assignment
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Accused Products
Abstract
A power supply apparatus includes a power source unit configured to supply electric power to an electric load, a capacitor connected to a power supply line extending from the power supply unit to the electric load, a charge circuit configured to charge the capacitor while restricting a current value of the electric power supplied from the power source unit, a specifying unit configured to specify a voltage value of the capacitor, a first determination unit configured to determine whether the charge of the capacitor is completed in accordance with the voltage specified by the specifying unit, and a second determination unit configured to determine whether the voltage specified by the specifying unit is equal to or smaller than an error threshold value after the first determination unit determines that the charge of the capacitor is completed.
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Citations
18 Claims
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1. A power supply apparatus comprising:
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a power source unit configured to supply electric power to an electric load; a capacitor connected to a power supply line extending from the power supply unit to the electric load; a charge circuit configured to charge the capacitor while restricting a current value of the electric power supplied from the power source unit; a specifying unit configured to specify a voltage value of the capacitor; a first determination unit configured to determine whether the charge of the capacitor is completed in accordance with the voltage specified by the specifying unit; and a second determination unit configured to determine whether the voltage specified by the specifying unit is equal to or smaller than an error threshold value after the first determination unit determines that the charge of the capacitor is completed, wherein, if the first determination unit determines that the charge of the capacitor is completed, the charge circuit switches a current value of the charge circuit to a first current value which is smaller than a current value supplied before the charge of the capacitor is completed, and the second determination unit performs the determination while the first current value is supplied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A printer comprising:
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a power source unit configured to supply electric power to a print head; a capacitor connected to a power supply line extending from the power supply unit to the print head; a charge circuit configured to charge the capacitor while restricting a current value of the electric power supplied from the power source unit; a specifying unit configured to specify a voltage value of the capacitor; a first determination unit configured to determine whether the charge of the capacitor is completed in accordance with the voltage specified by the specifying unit; and a second determination unit configured to determine whether the voltage specified by the specifying unit is equal to or smaller than an error threshold value after the first determination unit determines that the charge of the capacitor is completed, wherein, if the first determination unit determines that the charge of the capacitor is completed, the charge circuit switches a current value of the charge circuit to a first current value which is smaller than a current value supplied before the charge of the capacitor is completed, and the second determination unit performs the determination while the first current value is supplied.
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18. A method for controlling a power supply apparatus including
a power source unit configured to supply electric power to an electric load, a capacitor connected to a power supply line extending from the power supply unit to the electric load, and a charge circuit configured to charge the capacitor while restricting a current value of the electric power supplied from the power source unit, the method comprising: -
specifying a voltage value of the capacitor; determining whether the charge of the capacitor is completed in accordance with a specified voltage; determining whether the specified voltage specified after it is determined that the charge of the capacitor is completed is equal to or smaller than an error threshold value; performing switching of a current value of the charge circuit to a first current value which is smaller than a current value supplied before the charge of the capacitor is completed if it is determined that the charge of the capacitor is completed; and performing the determination as to whether the specified voltage specified after it is determined that the charge of the capacitor is completed is equal to or smaller than an error threshold value while the first current value is supplied.
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Specification