Battery charging control
First Claim
1. A battery charging control circuit for controlling a charging of a rechargeable battery by means of a charging component, said battery charging control circuit comprising a switching element, a control component and an auxiliary energy storage component, wherein said switching element is adapted to connect a battery to a charging component and to disconnect said battery from said charging component, respectively;
- wherein said control component is adapted to control said switching element; and
wherein said energy storage component is arranged to be loaded by a charging component and to provide a voltage across said energy storage component as a supply voltage to said control component.
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Accused Products
Abstract
The invention relates to a battery charging control circuit for controlling a charging of a rechargeable battery by means of a charging component. The battery charging control circuit comprises a switching element, a control component and an energy storage component. The switching element is adapted to connect a battery to a charging component and to disconnect the battery from the charging component. The control component is adapted to control the switching element. The energy storage component is arranged to be loaded by the charging component and to provide a voltage across the energy storage component as a supply voltage to the control component. The invention relates equally to a electronic device comprising such a circuit and to a method of providing a power supply to a control component of such a circuit.
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Citations
27 Claims
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1. A battery charging control circuit for controlling a charging of a rechargeable battery by means of a charging component, said battery charging control circuit comprising a switching element, a control component and an auxiliary energy storage component,
wherein said switching element is adapted to connect a battery to a charging component and to disconnect said battery from said charging component, respectively; -
wherein said control component is adapted to control said switching element; and
wherein said energy storage component is arranged to be loaded by a charging component and to provide a voltage across said energy storage component as a supply voltage to said control component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic device comprising a battery charging control circuit for controlling a charging of a rechargeable battery by means of a charging component, said battery charging control circuit including a switching element, a control component and an auxiliary energy storage component,
wherein said switching element is adapted to connect a battery to a charging component and to disconnect said battery from said charging component, respectively; -
wherein said control component is adapted to control said switching element and to cause said energy storage component to be loaded by a charging component during periods of time in which said charging component is not connected via said switching element to a battery; and
wherein said energy storage component is arranged to provide a voltage across said energy storage component as a supply voltage to said control component. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of providing a power supply to a control component of a battery charging control circuit, which control component controls charging a battery with power supplied by a charging component, said method comprising:
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loading an auxiliary energy storage component of said battery charging control circuit by means of power supplied by said charging component; and
providing a voltage across said auxiliary energy storage component as supply voltage to said control component. - View Dependent Claims (24, 25, 26, 27)
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Specification