POWER TOOL
First Claim
Patent Images
1. A power tool comprising:
- a secondary battery having positive and negative terminals across which a battery voltage is developed;
a drive unit connected to the secondary battery;
a detecting unit configured to detect a current value and a voltage value supplied from the secondary battery to the drive unit; and
a control unit configured to control an effective voltage and an effective current applied to the drive unit depending on a load imposed thereon to fall within an allowable power dissipation value.
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Accused Products
Abstract
A power tool includes: a secondary battery; a drive unit; a detecting unit; and a control unit. The secondary battery has positive and negative terminals across which a battery voltage is developed. The drive unit is connected to the secondary battery. The detecting unit is configured to detect a current value and a voltage value supplied from the secondary battery to the drive unit. The control unit is configured to control an effective voltage and an effective current applied to the drive unit depending on a load imposed thereon to fall within an allowable power dissipation value.
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Citations
8 Claims
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1. A power tool comprising:
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a secondary battery having positive and negative terminals across which a battery voltage is developed; a drive unit connected to the secondary battery; a detecting unit configured to detect a current value and a voltage value supplied from the secondary battery to the drive unit; and a control unit configured to control an effective voltage and an effective current applied to the drive unit depending on a load imposed thereon to fall within an allowable power dissipation value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification