【摘要】 本文描述了一种将标准热电偶与DS2760锂离子电池监测芯片相结合,组成一个通过单根双绞线电缆与微处理器通信的一线总线传感器的方法。该传感器直接把热电偶冷端和热端mV级的输出信号数字化,且自身含有冷端补偿功能,大大简化了传统热电偶的测温电路。更多还原

【Abstract】 This article expounds the method that combining standard thermocouple with lithium ion battery pack monitor chip Ds2760 constructs 1-wire thermocouple, which communicates with microprocessor via single twisted-pair cable. 1-wire thermocouple can directly digitize the millivolt level output produced between the hot and cold junctions of thermocouple, and it can realize cold junction temperature compensation automatically. This method greatly simplifies conventional thermocouple temperature measurement circuit.更多还原