| ??? 07/26/05 11:19 Read: times |
#98133 - Answer Responding to: ???'s previous message |
Sun said:
Kai, I looked at the datasheet for the ISO106 and noticed that I require two +- 15V supplies, one for the input end and one for the output end. Is there any way that I can use one supply for both ends, or will this just defeat the purpose of this device. No, you would need two totally separated supplies, as they sit on two different potentials, one 300V away from other! I also looked at the AD202, i think that does the very same thing as the ISO106, but it operates from a single 15V supply. You can also use the AD202, if you want. I only focused on the ISO106, because in datasheet an application was shown, which is exactly like your's. So, you can use any other iosolation amplifier which matchs your requirements. But choose a component withstanding as high potential differences across barrier as possible! And don't forget overvoltage protection!!! Think about what happens, when a inductive load is switched-off!! So, also an intelligent positioning of your sensoric is needed. Kai |
