Battery monitoring system with integrated battery holder
First Claim
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1. A battery monitoring system for monitoring the state of a battery, the system comprising:
- a printed circuit board (PCB);
an electrical contact connected to the PCB, the electrical contact for electrically coupling with the battery;
a battery monitoring integrated circuit (IC) attached to the PCB, the battery monitoring IC for determining the state of the battery; and
a battery clip attachable to the PCB, the battery clip, when attached to the PCB, for securing the battery to the electrical contact.
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Abstract
An apparatus for monitoring the condition of a battery. The apparatus includes a battery clip that is used to secure a battery to a battery connection and a battery monitoring IC. The battery monitoring IC takes a “load vs. no-load measurement” and the results are recorded in a register. When the battery reaches a certain low voltage state, register bits are set and an output is generated. Furthermore, the exemplary embodiment includes a removal detection circuit for detecting removal and replacement of the battery and for preventing voltage floating on the battery output line.
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Citations
9 Claims
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1. A battery monitoring system for monitoring the state of a battery, the system comprising:
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a printed circuit board (PCB);
an electrical contact connected to the PCB, the electrical contact for electrically coupling with the battery;
a battery monitoring integrated circuit (IC) attached to the PCB, the battery monitoring IC for determining the state of the battery; and
a battery clip attachable to the PCB, the battery clip, when attached to the PCB, for securing the battery to the electrical contact. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
measurement circuitry for performing a DELTA-V measurement.
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3. The battery monitoring system of claim 2, wherein the battery monitoring IC further comprises:
a storage location for storing the DELTA-V measurement.
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4. The battery monitoring system of claim 3, wherein the battery monitoring IC further comprises:
an interface connected to the storage location, the DELTA-V measurement stored in the storage location being accessible through the interface.
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5. The battery monitoring system of claim 2, further comprising:
circuitry for signaling a low battery condition.
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6. The battery monitoring system of claim 5, further comprising:
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a storage device connected to the circuitry;
wherein an indicator of the low battery condition is stored in the storage device.
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7. The battery monitoring system of claim 1, wherein the battery monitoring IC comprises:
a battery removal detector for detecting the removal of the battery from the electrical contact.
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8. The battery monitoring system of claim 7, wherein the battery removal detector limits voltage floating on a battery output line responsive to the battery being removed from the electrical contact.
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9. The battery monitoring system of claim 1, wherein the battery clip is configured to secure a coin-shaped primary cell.
Specification