Electronic equipment
First Claim
1. An electric equipment comprising:
- a first battery;
an electric condenser which has an internal resistance lower than that of the first battery and which serves to accumulate therein an electric power of the first battery;
charge control circuit which controls a charge current originating from the electric power of the first battery and caused to flow from the first battery to the electric condenser; and
a load which is driven with the electric power accumulated in the electric condenser, wherein the charge control circuit controls the charge current in correspondence to a self-discharge rate of the first battery.
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Accused Products
Abstract
Provided is electronic equipment in which an electric power of a battery or a secondary battery, having a high internal resistance, can be efficiently utilized. The electronic equipment includes: a first battery such as a battery or a secondary battery, having a high internal resistance; an electric condenser having an internal resistance lower than that of the first battery for accumulating therein an electric power of the first battery; a charge control circuit for controlling a charge current, for the electric condenser, originating from the electric power of the first battery; and a load driven with the accumulated electric power of the electric condenser. In the case where the electric condenser is charged with the electric power of the first battery, the charge control circuit controls the charge current so that when self-discharge of the first battery is less, a battery voltage drop of the first battery falls within a range of 5 to 20% of a battery voltage when the first battery is in an open state, and when the self-discharge of the first battery is equal to or larger than 10%, the battery voltage drop of the first battery falls within a range of 10 to 40% of the battery voltage when the first battery is in the open state.
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Citations
13 Claims
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1. An electric equipment comprising:
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a first battery;
an electric condenser which has an internal resistance lower than that of the first battery and which serves to accumulate therein an electric power of the first battery;
charge control circuit which controls a charge current originating from the electric power of the first battery and caused to flow from the first battery to the electric condenser; and
a load which is driven with the electric power accumulated in the electric condenser, wherein the charge control circuit controls the charge current in correspondence to a self-discharge rate of the first battery. - View Dependent Claims (2, 3, 4)
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5. An electric equipment, comprising:
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a first battery;
an electric condenser which has an internal resistance lower than that of the first battery and which serves to accumulate therein an electric power of the first battery;
a charge control circuit which controls a charge current originating from the electric power of the first battery and caused to flow from the first battery to the electric condenser; and
a load which is driven with the electric power accumulated in the electric condenser, wherein the load is driven in a first operation mode or a second operation mode consuming more current than in the first operation mode, and wherein the charge control circuit charges the electric condenser in a first charge control mode with a charge current which is larger than a current consumed when the load is driven in the first operation mode, and is smaller than a current consumed when the load is driven in the second operation mode. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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Specification