A decade or so ago, I designed a simple circuit that included a quad optoisolator arranged in a full-wave analog-multiplier bridge (Figure 1).

大约十年前，我设计了路，包括按全波模拟乘法器桥列的四光耦（图1）。

You can also monitor two independent loads by attaching a second optoisolator circuit to the Counter B input of a single DS2423.

也可以通过配光绝缘体路到DS2423计数器B的输出端，来监测两阻负载。