Drain Source Voltage of FET Calculator

✖Supply Voltage at Drain controls the maximum drain current that the JFET can conduct. The higher the supply voltage, the higher the maximum drain current.ⓘ Supply Voltage at Drain [V_dd]			+10% -10%
✖Drain Current is the current that flow through the drain junction of the MOSFET and IGBT.ⓘ Drain Current [I_d]			+10% -10%
✖Drain Resistance of a JFET can be reduced by using a JFET with a wider channel width and length. JFETs with wider channel widths and lengths have lower resistance.ⓘ Drain Resistance [R_drain]			+10% -10%
✖Source Resistance of a JFET is typically much smaller than the drain resistance. This is because the source of a JFET is connected to the ground, which has a very low resistance.ⓘ Source Resistance [R_in]			+10% -10%

✖Drain to Source Voltage controls the flow of current through the JFET. The higher the drain-to-source voltage, the more current will flow through the JFET.ⓘ Drain Source Voltage of FET [V_ds]

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Formula

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Drain Source Voltage of FET

Formula

`"V"_{"ds"} = "V"_{"dd"}-"I"_{"d"}*("R"_{"drain"}+"R"_{"in"})`

Example

`"1.69V"="5V"-"10A"*("0.12Ω"+"0.211Ω")`

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Drain Source Voltage of FET Solution

STEP 0: Pre-Calculation Summary

Formula Used

Drain to Source Voltage = Supply Voltage at Drain-Drain Current*(Drain Resistance+Source Resistance)
V_ds = V_dd-I_d*(R_drain+R_in)
This formula uses 5 Variables

Variables Used

Drain to Source Voltage - (Measured in Volt) - Drain to Source Voltage controls the flow of current through the JFET. The higher the drain-to-source voltage, the more current will flow through the JFET.
Supply Voltage at Drain - (Measured in Volt) - Supply Voltage at Drain controls the maximum drain current that the JFET can conduct. The higher the supply voltage, the higher the maximum drain current.
Drain Current - (Measured in Ampere) - Drain Current is the current that flow through the drain junction of the MOSFET and IGBT.
Drain Resistance - (Measured in Ohm) - Drain Resistance of a JFET can be reduced by using a JFET with a wider channel width and length. JFETs with wider channel widths and lengths have lower resistance.
Source Resistance - (Measured in Ohm) - Source Resistance of a JFET is typically much smaller than the drain resistance. This is because the source of a JFET is connected to the ground, which has a very low resistance.

STEP 1: Convert Input(s) to Base Unit

Supply Voltage at Drain: 5 Volt --> 5 Volt No Conversion Required
Drain Current: 10 Ampere --> 10 Ampere No Conversion Required
Drain Resistance: 0.12 Ohm --> 0.12 Ohm No Conversion Required
Source Resistance: 0.211 Ohm --> 0.211 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_ds = V_dd-I_d*(R_drain+R_in) --> 5-10*(0.12+0.211)

Evaluating ... ...

V_ds = 1.69

STEP 3: Convert Result to Output's Unit

1.69 Volt --> No Conversion Required

FINAL ANSWER

1.69 Volt <-- Drain to Source Voltage

(Calculation completed in 00.020 seconds)

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< 9 FET Calculators

Ohmic Region Drain Current of FET

Go Drain Current = Channel Conductance*(Drain to Source Voltage+3/2*((Psi+Gain to Source Voltage-Drain to Source Voltage)^(3/2)-(Psi+Gain to Source Voltage)^(3/2))/((Psi+Pinch OFF Voltage)^(1/2)))

Transconductance of FET

Go Forward Transconductance = (2*Drain Current of Zero Bias)/Pinch OFF Voltage*(1-Gain to Source Voltage/Pinch OFF Voltage)

Drain Source Voltage of FET

Go Drain to Source Voltage = Supply Voltage at Drain-Drain Current*(Drain Resistance+Source Resistance)

Gate Substrate Capacitance of FET

Go Gate Substrate Capacitance = Gate Substrate Capacitance off Time/(1-(Gate Substrate Voltage/Psi))^(1/2)

Drain Current of FET

Go Drain Current = Drain Current of Zero Bias*(1-Gain to Source Voltage/Cuttoff Gain to Source Voltage)^2

Gate Source Capacitance of FET

Go Gate to Source Capacitance = Gate Source Capacitance off Time/(1-(Gain to Source Voltage/Psi))^(1/3)

Gate Drain Capacitance of FET

Go Gate to Drain Capacitance = Gate Drain Capacitance off Time/(1-Gate to Drain Voltage/Psi)^(1/3)

Pinch off Voltage of FET

Go Pinch OFF Voltage = Pinch OFF Drain to Source Voltage-Gain to Source Voltage

Voltage Gain of FET

Go Voltage Gain = -Forward Transconductance*Drain Resistance

Drain Source Voltage of FET Formula

Drain to Source Voltage = Supply Voltage at Drain-Drain Current*(Drain Resistance+Source Resistance)
V_ds = V_dd-I_d*(R_drain+R_in)

What is Drain Source Voltage of FET ?

The drain-source voltage (Vds) of a Field-Effect Transistor (FET) is the voltage difference between the drain terminal (D) and the source terminal (S) of the transistor. It is a key parameter that characterizes the FET's operating conditions and is crucial for understanding and designing FET-based circuits. The V_DS voltage is used to control the FET's operation in different modes, and it can significantly affect the behavior of the transistor. The relationship between V_DS and the drain current (I_d) is essential to determine how the FET functions in various applications.

How to Calculate Drain Source Voltage of FET?

Drain Source Voltage of FET calculator uses Drain to Source Voltage = Supply Voltage at Drain-Drain Current*(Drain Resistance+Source Resistance) to calculate the Drain to Source Voltage, Drain Source Voltage of FET, the higher the drain-source voltage, the more current will flow through the FET. However, there is a limit to how much current the FET can conduct, which is determined by the pinch-off voltage. The pinch-off voltage is the voltage at which the depletion regions of the gate-junctions meet and pinch off the channel, preventing further current flow. Once the pinch-off voltage is reached, the drain current in a FET becomes relatively constant, even as the drain-to-source voltage is increased. Drain to Source Voltage is denoted by V_ds symbol.

How to calculate Drain Source Voltage of FET using this online calculator? To use this online calculator for Drain Source Voltage of FET, enter Supply Voltage at Drain (V_dd), Drain Current (I_d), Drain Resistance (R_drain) & Source Resistance (R_in) and hit the calculate button. Here is how the Drain Source Voltage of FET calculation can be explained with given input values -> 1.69 = 5-10*(0.12+0.211).

FAQ

What is Drain Source Voltage of FET?

Drain Source Voltage of FET, the higher the drain-source voltage, the more current will flow through the FET. However, there is a limit to how much current the FET can conduct, which is determined by the pinch-off voltage. The pinch-off voltage is the voltage at which the depletion regions of the gate-junctions meet and pinch off the channel, preventing further current flow. Once the pinch-off voltage is reached, the drain current in a FET becomes relatively constant, even as the drain-to-source voltage is increased and is represented as V_ds = V_dd-I_d*(R_drain+R_in) or Drain to Source Voltage = Supply Voltage at Drain-Drain Current*(Drain Resistance+Source Resistance). Supply Voltage at Drain controls the maximum drain current that the JFET can conduct. The higher the supply voltage, the higher the maximum drain current, Drain Current is the current that flow through the drain junction of the MOSFET and IGBT, Drain Resistance of a JFET can be reduced by using a JFET with a wider channel width and length. JFETs with wider channel widths and lengths have lower resistance & Source Resistance of a JFET is typically much smaller than the drain resistance. This is because the source of a JFET is connected to the ground, which has a very low resistance.

How to calculate Drain Source Voltage of FET?

Drain Source Voltage of FET, the higher the drain-source voltage, the more current will flow through the FET. However, there is a limit to how much current the FET can conduct, which is determined by the pinch-off voltage. The pinch-off voltage is the voltage at which the depletion regions of the gate-junctions meet and pinch off the channel, preventing further current flow. Once the pinch-off voltage is reached, the drain current in a FET becomes relatively constant, even as the drain-to-source voltage is increased is calculated using Drain to Source Voltage = Supply Voltage at Drain-Drain Current*(Drain Resistance+Source Resistance). To calculate Drain Source Voltage of FET, you need Supply Voltage at Drain (V_dd), Drain Current (I_d), Drain Resistance (R_drain) & Source Resistance (R_in). With our tool, you need to enter the respective value for Supply Voltage at Drain, Drain Current, Drain Resistance & Source Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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