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App note: Engineering scaling

App note: Engineering scaling

Scaling large values to be fed on limited input digital meters, application note from Murata. Link here (PDF)

It is oftentimes necessary to attenuate “large” input signals down to a level that more closely matches the input range of a selected meter. For example, suppose the signal to be measured is 19 Volts, and the input voltage range of the available meter is 2 Volts (the preferred model for any attenuation circuit). Obviously, the “raw” input signal voltage is much too high for a ± 2V meter to measure directly and must first be attenuated.

 




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