Programmable event limit detector for computer system power control
First Claim
1. A system for controlling the application of power from a battery that supplies power to an electrical system and also to a computer that monitors the battery, comprising:
- a switch in the power supply path between the battery and the computer; and
a controller distinct from the computer and that receives data related to the battery voltage and current supplied to the electrical system;
said controller including a comparator for comparing the voltage and current data received to produce a signal to turn on said switch for a predetermined time to supply power to actuate said computer for a time sufficient to perform its battery monitoring function when one of the current or voltage data received by said controller exceeds one of a predetermined high or low limit.
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Accused Products
Abstract
A system for controlling the application of power from a battery (12) to an electrical system (18) as well as to a computer (30) that monitors the battery, includes a switch (52) in the power supply path between the battery and the computer. The switch is operated by a controller (40) that receives data representing the battery voltage and the current supplied to the electrical system (18). The controller includes a comparator for comparing the received voltage and current data to preset data values to produce a signal (46) to turn on the switch for a predetermined time to supply power to actuate the computer to perform its monitoring function when one of the current or voltage data received by the controller exceeds one of a predetermined high or low limit data value. The system also includes a wake-up circuit (48) to produce the signal to turn on the switch for a predetermined time to supply power to actuate the computer when one of the predetermined high or low voltage or current limits is not exceeded for a given time.
15 Citations
6 Claims
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1. A system for controlling the application of power from a battery that supplies power to an electrical system and also to a computer that monitors the battery, comprising:
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a switch in the power supply path between the battery and the computer; and
a controller distinct from the computer and that receives data related to the battery voltage and current supplied to the electrical system;
said controller including a comparator for comparing the voltage and current data received to produce a signal to turn on said switch for a predetermined time to supply power to actuate said computer for a time sufficient to perform its battery monitoring function when one of the current or voltage data received by said controller exceeds one of a predetermined high or low limit.- View Dependent Claims (2, 3, 4, 5, 6)
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Specification