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US 7,679,334 B2Granted
Power supply unit and electric apparatus
AssigneePanasonic Corporation
InventorsKohei Suzuki, Hiroshi Yoshizawa, Kohji Yuasa, Munehisa Ikoma
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AssigneePanasonic Corporation
InventorsKohei Suzuki, Hiroshi Yoshizawa, Kohji Yuasa, Munehisa Ikoma
Estimating the term…
Provided is a power supply unit for supplying power to an electric apparatus, comprising an indicator unit, an introduction-detecting unit for detecting introduction of the electric apparatus into a vehicle for transportation of the electric apparatus, a voltage-detecting unit for detecting the voltage of the power source, a memory unit for storing a first voltage and a second voltage lower than the first voltage, a judgment unit for determining whether the voltage of the power source detected by the voltage-detecting unit is higher than the first voltage and a forced discharge unit. The forced discharge unit is configured to cause the indicator unit to notify if the electric apparatus is in a state prohibiting introduction into the vehicle and forcibly discharge the power source.
A power supply unit for supply of power to an electric apparatus, comprising
An electric apparatus, comprising
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte:…
Including monitoring or indicating arrangements: control of state of charge [SOC]
Electric constitutive elements: for supply of electrical power to vehicle subsystems or for
The load networks being external to vehicles, i.e. exchanging power with vehicles: exchanging power with road vehicles
About 1 year 11 months of term left · ends 23 Sep 2028 (estimated)
1. Field of the Present Invention
The present invention relates to a power supply unit using a nonaqueous electrolyte secondary battery as its power source and an electric apparatus to which power is supplied from the power supply unit.
2. Description of the Background Art
FIG. 1 is a diagram showing an example of the electric apparatus in the first embodiment of the present invention.
FIG. 2 is a perspective appearance view illustrating a personal computer using the power supply unit in the first embodiment of the present invention.
FIG. 3 is a flowchart showing the control algorithm of the power supply unit in the first embodiment.
Hereinafter, favorable embodiments of the present invention will be described with reference to attached drawings. The following embodiments are only specific examples of the present inventions, and should not be construed that they restrict the technological scope of the present invention.
Hereinafter, favorable embodiments of the present invention will be described, by using a laptop personal computer as an example of the electric apparatus.
FIG. 1 is a diagram showing an example of the electric apparatus in the first embodiment of the present invention. The electric apparatus shown in FIG. 1 has a power supply unit 9 and an apparatus circuit 10. The power supply unit 9 has an introduction-detecting button 1, a power source 2, a voltage-detecting unit 3, a LED (Light Emitting Diode) 4, a switch 5, a control unit 6, and a memory unit 7.