티스토리 뷰

Isolated(insulated) voltage and current monitor both locally and remotely

Overview

Error(accuracy), nonlinearity and noise levels below 0.1%

Item Information Option Remarks
Communication I2C with 6.8VDC U48(KIA7805) Using CN11 from 'Central' Module
Connectors CN51 : AC Source#1
CN52 : Load#1
CN61 : DC Source#2
CN62 : Load#2
   
Voltage ragne -100 ~ +100 V R54 or R64 : 20k ohm/B Channe#1 & Channel#3
-200 ~ +200 V R54 or R64 : 10k ohm/B Channe#1 & Channel#3
-400 ~ +400 V R54 or R64 : 4.99k ohm/B Channe#1 & Channel#3
Current range -200 ~ +200 mA R59 : 1.0 ohm/B Channel#2
-1,000 ~ 1,000 mA R59 : 0.2 ohm/B Channel#2
-5.0 ~ +5.0 A U63 : ...05B Channel#4
-20.0 ~ +20.0 A U63 : ...20A Channel#4
       

PCB Layout

Schematic(NoValue)

 

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