Battery module and method for determining battery ID and temperature

• Main Authors: SHEN, JEAN-LIEH, TENG, CHIHUNG, PAN, CHUNG-YI
• Format: Patent
• Language: English; French; German
• Published: 28.07.2010
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

A battery module (30) for a portable electronic device is disclosed. The battery module (30) is connected with the portable electronic device with at least three contacts (1,2,3). The battery module (30) includes a battery (31), a battery recognition circuit (32), and a thermal sensing circuit (33). The battery recognition circuit (32) has an energy storage element (321) and a current limiting element (322), and the thermal sensing circuit (33) has a switch (331) and a thermal sensing element (332). The thermal sensing element (332) varies its electric parameter in accordance with the temperature of the battery module (30). With the charging curve of charging the energy storage element (321) by way of the current limiting element (322), the portable electronic device can determine a battery type, and the thermal sensing circuit (33) is then initiated to acquire the thermal information of the battery module (30).