When would a technician take differential voltage measurements ?
For what kind of circuits would have differential inputs or outputs

 

When would a technician take differential voltage measurements ?
For what kind of circuits would have differential inputs or outputs

Technically speaking, all voltage measurements are differential. "Single-ended" measurements are simply a differential measurement between some point and another referenced as 0V.

You are most likely referring to measurements that are made between two points, neither of which are considered a "common" or 0V.

Look up "Wheatstone Bridge" for an example of where differential measurements are important.

 

This must be homework. We saw the identical question a while back.

 

Making Differential voltage measurements that are not referenced to Zero or ground

Can you please give some examples of when a technician would measure a differential voltage that is not referenced to ground?

 

Voltage across a resistor to estimate current.
Voltage across a diode to check its integrity.

 

Output of a differential driver, or the input of a differential receiver

 

push pull amplifier
differential amplifier
the Voltage difference of a power supply resistor for heat dissipation
The voltage difference of a Series pass FET or Transistor in power supply