Critical-voltage indicator for a vehicle battery
OwnerHamid Sahebjami, Steve Sahebjaminventors
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Abstract
The present invention provides methods and apparatuses for the detection and warning of a critical voltage of a vehicle battery. An apparatus includes a voltage regulator, a voltage-level detector, a logic circuit, and a light-emitting diode (LED) with a current-protection circuit for providing an indication when the battery voltage drops below a critical voltage level.
Claims20
An apparatus that detects a low voltage condition for a battery of a vehicle, the apparatus comprising:
- a voltage regulator that provides a voltage reference having a corresponding predetermined voltage value;
- a voltage detector that compares a voltage representation of the battery and the voltage reference and that provides a corresponding detection output;
- and
- a logic circuit that captures the corresponding detection output to form a captured detection output.
An apparatus that detects a low voltage condition for a battery of a vehicle, the apparatus comprising:
- an interface that obtains a voltage representation of the battery;
- a voltage regulator that provides a voltage reference having a corresponding predetermined voltage value;
- a processor that is configured to perform:
- (a) comparing the voltage reference with the voltage representation to provide a comparison result;
- and
- (b) capturing the comparison result to form a captured result;
The method for indicating a low voltage condition for a battery of a vehicle, the apparatus comprising:
- (a) generating a voltage reference having a corresponding predetermined voltage value;
- (b) obtaining a voltage representation of the battery;
- (c) comparing, when the battery is energizing a starter motor of the vehicle, the voltage reference with the voltage representation of the battery to obtain a corresponding detection output;
- (d) capturing the corresponding detection output to form a captured detection output;
- and
- (e) configuring a display according to the captured detection output.
Dependencies are inferred from the claim text.