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ADE7758 attenuation network

Question asked by gehan on Jan 28, 2013
Latest reply on Jan 29, 2013 by hmani

HI all,

 

When using this IC I am using a 1.1M and a 1.5k resistor attenuation network to step down the mains 230Vrms voltage. What is the register where I have to give this ratio?

This meter will be used to measure currents up to 1A, 5A and 20A (not at the same time). Because of this I have chosen 3 sets of burden resistors and opted to switch them according to the primary current (The current transformer is a 30A to 5A). Just like in the Voltage sampling how do I give these ratios to the chip.

 

Thanks in advance !!!!!!!!!!!!!!!!!!!

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