Difference Between Voltage Controlled Device And Current Controlled Device

Difference Between Voltage Controlled Device And Current Controlled Device. In any (electronic) device controlling parameter is voltage it is called voltage controlled device. Bjt is used for low current applications, such as radio transmitters.

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The difference between bjt and mosfet is that the bjt is used as a current control device whereas mosfet is used as a voltage control device. Bjt is a current controlled device: It is a low cost:

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The voltage applied to the gate controls the width of the channel, allowing the fet to carry current between the drain and source pins. Bjt is used for low current applications, such as radio transmitters.

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In jfet, there is no junction. In the case of a voltage controlled device, the current is almost independent of the voltage, and the amount of voltage is what matters for control.

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Some of the advantages of jfet are: Triac can conduct in both directions;

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Bjt has a finite input impedance so it has a small finite. In the case of a voltage controlled device, the current is almost independent of the voltage, and the amount of voltage is what matters for control.

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The difference between bjt and mosfet is that the bjt is used as a current control device whereas mosfet is used as a voltage control device. It is a voltage controlled device.

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In the case of a voltage controlled device, the current is almost independent of the voltage, and the amount of voltage is what matters for control. Voltage controlled devices are those whose output depend on input voltage.

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A voltage contolled is one which is driven by a voltage source. They can be easy to control as compared to current controlled devices in high current applications.

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Source (s) drain(d) gate(g) classification of fet In the case of a voltage controlled device, the current is almost independent of the voltage, and the amount of voltage is what matters for control.

Fet Is A Voltage Controlled Device Because Its Output Characteristics Are Determined By The Field Which Depends On The Voltage Applied.

In both an electric field is produced so what is the difference? In jfet, there is no junction. Its heat stability is better:

It Can Thus Be Described As A Bidirectional Device.

The voltage applied to the gate controls the width of the channel, allowing the fet to carry current between the drain and source pins. A jfet is a voltage controlled, constant current device in which variation in input voltage control the output current. If one looks only at the physics of the device, a bjt is current controlled while a fet is voltage controlled.

Its Frequency Response Is High:

Now the question is that current is also generated due to voltage and still bjt is current controlled and fet voltage controlled. It is a voltage controlled device. Power mosfet is a voltage controlled device.

Scr Can Function By Positive Gate Control Voltage Only.

Bjt is a current controlled device. Voltage controlled voltage source (vcvs) and voltage controlled current source (vccs) comparison. In the case of a current controlled device, the voltage is almost independent of the current, and the amount of current is what matters for control.

The Bjt Is A Current Controlled Device.

The gate voltage that cuts off the current flow. Bjt size is higher as compared with fet: Triac can conduct in both directions;