| 摘要 |
<p>A battery detection circuit and method for a mobile terminal, and a mobile terminal. The mobile terminal comprises a processor and a battery. The battery detection circuit comprises a pulse module and a sampling module, wherein the processor sends a control signal to the pulse module; according to the control signal, the pulse module generates a pulse voltage signal, and sends same to the battery; the sampling module collects the pulse voltage signal so as to obtain a sampling voltage signal, and sends the sampling voltage signal to the processor; and according to the sampling voltage signal, the processor performs calculation to acquire a battery temperature. Since parameters, such as the pulse width and amplitude of a pulse voltage signal can be adjusted by a controller, the pulse voltage signal can be sampled many times, so that the acquired battery temperature is more accurate. In addition, since the battery temperature is acquired through a sampling voltage signal which is acquired by sampling a pulse voltage signal, the battery can be detected in the states of charging and using a cell phone, so that the security is higher, and the circuit is very simple and easy, thereby having lower costs and being easy to achieve.</p> |
