Electrical – an example of a three-terminal current-controlled voltage source

voltage-source

Dependent sources come in four flavors:

  • voltage-dependent current sources (e.g. a FET can act as a VCCS)
  • current-dependent current sources (BJT)
  • voltage-dependent voltage sources (OpAmp as an example of a linear component)
  • current-dependent voltage sources

A resistor can be seen as a special type of CCVS, where the current through the resistor determines the voltage across it.

Is there such a thing as a three-terminal current-controlled voltage source? I guess the equivalent circuit could look like this:

schematic

simulate this circuit – Schematic created using CircuitLab

The current at AM1 controls the voltage across R1, measured by VM1. But is there a single, specific component that does the same thing?

Best Answer

A much better and more practical implementation of a Current Controlled Voltage Source (CCVS) can be made using an Opamp:

enter image description here

Source

All the other controlled sources can also be implemented using an opamp, some resistors and maybe a MOSFET (for the VCCS and CCCS).

Related Topic