Battery energy management system for measuring a minimum battery voltage
First Claim
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1. A method of measuring a minimum battery voltage, comprising the steps of:
- (a) storing a voltage in a detector circuit that is external to a microcontroller;
(b) modifying the voltage in response to receiving an input voltage signal; and
(c) sampling the voltage in response to receiving a command from the microcontroller.
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Abstract
A method of monitoring a battery energy management system includes discharging a detector circuit to a minimum battery voltage, measuring an elapsed time that the minimum battery voltage is detected, resetting a timer circuit, and sampling the minimum battery voltage and the elapsed time of the minimum battery voltage in response to a predefined prompt. The discharge of the detector circuit, the measurement of the minimum battery voltage, the elapsed time of the minimum battery voltage, and the reset of the timer circuit are performed in response to an input voltage being less than the voltage stored within the detector circuit.
21 Citations
18 Claims
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1. A method of measuring a minimum battery voltage, comprising the steps of:
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(a) storing a voltage in a detector circuit that is external to a microcontroller; (b) modifying the voltage in response to receiving an input voltage signal; and (c) sampling the voltage in response to receiving a command from the microcontroller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A battery energy management system, comprising:
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a microcontroller; and a battery energy management circuit that stores a voltage, wherein said battery energy management circuit is at least partially mounted separate from said microcontroller, and said battery energy management circuit is operable to modify said voltage and sample a minimum battery voltage in response to a command from said microcontroller. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification