What is CCVS(Current Controlled Voltage Source)? Examples


Definition/Concept


The current-controlled voltage source is that where the terminal voltage is dependent or controlled by the current flow elsewhere in the circuit. In short, it is known as CCVS. It is also a type of dependent source. In the previous article, we have learned about voltage control voltage source where the terminal is voltage dependent upon the voltage elsewhere in the circuit but here the concept is different. Here, changes in current flow elsewhere in the circuit can change the terminal voltage.

Here, the current-controlled output voltage is determined by the expression, VOUT = ρIIN

Here, VOUT  = Output Dependent Voltage
          IIN = Input Current
ρ(rho) = Multyplying constant or efficient of the voltage source. It is sometimes known as transresistance. 

Remember that the unit of the ρ is Ohm because ρ = VOUT/IIN


Current Controlled Voltage Source(CCVS) Circuit Diagram


Here, you can see a simple and basic circuit diagram of CCVS. Here a 5V independent source is there and three resistors are available. The value of R1 = 5 ohm, R2 = 2 ohm, R3 = 8 ohm.

Current Controlled Voltage Source or CCVS Circuit Diagram



As you can see in the above circuit diagram the controlled voltage source depends upon the current flow through the resistor R2. This happens because when the flow of current through the resistor R2 changes it affects the current flow through other resistors also. We can assume the dependent voltage source is 2*I so if the current flow is 2A then the value of the controlled voltage source will be 4 and if the current flow is 3A then the value of the controlled voltage source will be 6.


CCVS Symbol


Here, you can see the symbol of the Current Controlled Voltage Source. It is quite different from the VCVS. Here the current flow is shown by the arrow mark.

Current Controlled Voltage Source CCVS Symbol


CCVS Example


A practical example of CCVS or Current Controlled Voltage Source is OpAmp used as Transconductance. Here the output voltage is dependent on the input current. So the controlling input current Iin controls the magnitude of the output voltage. In fact, you will see there are a lot of applications of CCVS in analog electronics circuits.


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What is CCVS(Current Controlled Voltage Source)? Examples What is CCVS(Current Controlled Voltage Source)? Examples Reviewed by Author on 6/18/2022 Rating: 5