Apparatus and method of protecting battery packs
AssigneeLG Chem, Ltd.
InventorJung Yong Song
Life of this patent
Estimating the term…
Abstract
Disclosed are an apparatus and a method for protecting a battery pack. The apparatus includes: a sensor for detecting external physical impact so as to output a voltage signal; a first protection circuit for receiving the voltage signal output from the sensor; a gauging IC for determining whether the voltage received from the first protection circuit is larger than a predetermined value, so as to output the voltage signal to either the first protection circuit or a second protection circuit; the second protection circuit for receiving the voltage signal from the gauging IC; and an alarm circuit connected to the first and second protection circuits so as to receive the voltage signal from the first and second protection circuits and raise an alarm signal.
Claims9
The apparatus for protecting a battery pack, comprising:
- a sensor for detecting external physical impact so as to output a voltage signal;
- a first protection circuit for receiving the voltage signal output from the sensor;
- a gauging IC for determining if the voltage received from the first protection circuit is larger than a predetermined value, so as to output the voltage signal to either the first protection circuit or a second protection circuit;
- the second protection circuit for receiving the voltage signal from the gauging IC;
- and
- an alarm circuit connected to the first and second protection circuits so as to receive the voltage signal from the first and second protection circuits and raise an alarm signal.
A method for protecting a battery pack, comprising the steps of:
- connecting a first protection circuit connected to a sensor and detecting a sensor voltage signal, and a second protecting circuit to a alarm circuit including multicolored light emitting diodes;
- receiving a voltage signal output from the first protection circuit;
- determining if a value of the voltage signal output is within a predetermined range;
- selecting either the first protection circuit or the second protection circuit based on whether or not the value of the voltage signal output is in excess of the predetermined range;
- and
- outputting the alarm signal to the selected protection circuit.
Dependencies are inferred from the claim text.