Holtek HT71D0x动力线数据传输解决方案
Holtek公司的HT71D0x是动力线数据收发器, HT71D02内置3.3V稳压器输出, HT71D04内置5.0V稳压器输出, 全系列高压输入电压可达30V. 经由内置数据传输调制接口,可将高压传输在线数据解调并转为3.3V or 5V信号给子系统MCU,亦可将子系统MCU信号调制后转为高压经由传输线传回主系统,适用于诸如烟感器、水表等联网系统产品。本文介绍了HT71D02/HT71D04主要特性,方框图和系统方框图以及应用电路.
In systems where a master controller controls a number of individual interconnected subsystems such as found in smoke detector systems, water metering systems, solar energy system etc., the cost of the lengthy interconnecting cabling can be a major factor. By sending data along the power supply lines, the interconnecting cables can be reduced to a simple two line type, thus greatly reducing both cable and installation costs.
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