Temperature measurement and identification circuit of built-in battery, battery, detecting device and detecting method

Abstract

The invention discloses a temperature measurement and identification circuit of a built-in battery, the battery, a detecting device and a detecting method, and belongs to the field of electronic equipment. The temperature measurement and identification circuit comprises a temperature-sensitive resistor, one end of the temperature-sensitive resistor is connected with the negative electrode of the battery, and the other end of the temperature-sensitive resistor is led out from the battery. A capacitor is further included, and the capacitor is in parallel connection with the temperature-sensitive resistor. The detecting device comprises a signal generating module, a temperature detecting module, an analog-digital conversion module and a control module. The temperature measurement and identification circuit of the built-in battery, the battery, the detecting device and the detecting method can be applied to the battery only with three pins, and the purposes of temperature measuring, identification, imitation prevention, low cost can be achieved at the same time.

Description

technical field [0001] The invention belongs to the field of electronics, and in particular relates to a temperature measurement and identification circuit of a built-in battery, a battery, a detection device and a detection method. Background technique [0002] Due to many reasons, the current mobile phone battery uses three pins, the positive pole and the negative pole respectively occupy two pins, and one pin can be used as a temperature measurement pin, and can also be used to identify the battery type (such as Use different resistors to represent different battery models) and / or pins of manufacturers (for example, each manufacturer can use different resistors to represent its own products); under this three-pin architecture, if you want to use A three-pin battery can read temperature and identification information at the same time by using a built-in chip in the battery, and use a single bus to output temperature and identification information at the same time. Obviousl...

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Problems solved by technology

[0003] In view of this, the present invention provides a built-in battery temperature measurement and identification circuit to solve the problem that the battery that has not yet adopted a three-pin structure can read temperature and identification information at the same time without a built-in chip, and at the same time The problem of low-cost solutions with certain anti-counterfeiting functions

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