Cut-off Frequency of Varactor Diode Solution

STEP 0: Pre-Calculation Summary
Formula Used
Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode)
fc = 1/(2*pi*Rse*Cj)
This formula uses 1 Constants, 3 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
Variables Used
Cut-off Frequency - (Measured in Hertz) - A Cut-off Frequency is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced rather than passing through.
Series Field Resistance - (Measured in Ohm) - Series Field Resistance refers to the opposition offered to the flow of current by the field winding around the circuit that is connected in series with the varactor diode.
Capacitance of Varactor Diode - (Measured in Farad) - The Capacitance of Varactor Diode is the ability of a component or circuit to collect and store energy in the form of an electrical charge.
STEP 1: Convert Input(s) to Base Unit
Series Field Resistance: 34 Ohm --> 34 Ohm No Conversion Required
Capacitance of Varactor Diode: 1522 Microfarad --> 0.001522 Farad (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
fc = 1/(2*pi*Rse*Cj) --> 1/(2*pi*34*0.001522)
Evaluating ... ...
fc = 3.0755767003922
STEP 3: Convert Result to Output's Unit
3.0755767003922 Hertz --> No Conversion Required
FINAL ANSWER
3.0755767003922 3.075577 Hertz <-- Cut-off Frequency
(Calculation completed in 00.004 seconds)

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16 Diode Characteristics Calculators

Non-Ideal Diode Equation
Go Non Ideal Diode Current = Reverse Saturation Current*(e^(([Charge-e]*Diode Voltage)/(Ideality Factor*[BoltZ]*Temperature))-1)
Ideal Diode Equation
Go Diode Current = Reverse Saturation Current*(e^(([Charge-e]*Diode Voltage)/([BoltZ]*Temperature))-1)
Capacitance of Varactor Diode
Go Capacitance of Varactor Diode = Material Constant/((Barrier Potential+Reverse Voltage)^Doping Constant)
Self-Resonance Frequency of Varactor Diode
Go Self Resonance Frequency = 1/(2*pi*sqrt(Inductance of Varactor Diode*Capacitance of Varactor Diode))
Saturation Drain Current
Go Diode Saturation Current = 0.5*Transconductance Parameter*(Gate Source Voltage-Threshold Voltage)
Cut-off Frequency of Varactor Diode
Go Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode)
Zener Current
Go Zener Current = (Input Voltage-Zener Voltage)/Zener Resistance
Thermal Voltage of Diode Equation
Go Thermal Voltage = [BoltZ]*Temperature/[Charge-e]
Diode Equation for Germanium at Room Temperature
Go Germanium Diode Current = Reverse Saturation Current*(e^(Diode Voltage/0.026)-1)
Quality Factor of Varactor Diode
Go Quality Factor = Cut-off Frequency/Operating Frequency
Responsivity
Go Responsivity = Photo Current/Incident Optical Power
Zener Resistance
Go Zener Resistance = Zener Voltage/Zener Current
Zener Voltage
Go Zener Voltage = Zener Resistance*Zener Current
Average DC Current
Go Direct Current = 2*Peak Current/pi
Voltage Equivalent of Temperature
Go Volt-Equivalent of Temperature = Room Temperature/11600
Maximum Wavelight
Go Maximum Wavelight = 1.24/Energy Gap

Cut-off Frequency of Varactor Diode Formula

Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode)
fc = 1/(2*pi*Rse*Cj)

What is a varactor diode?

The diode whose internal capacitance varies with the variation of the reverse voltage type of diode is known as the Varactor diode. It is used for storing the charge. The varactor diode always works in reverse bias, and it is a voltage-dependent semiconductor device.

How to Calculate Cut-off Frequency of Varactor Diode?

Cut-off Frequency of Varactor Diode calculator uses Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode) to calculate the Cut-off Frequency, The Cut-off frequency of varactor diode is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced rather than passing through. Cut-off Frequency is denoted by fc symbol.

How to calculate Cut-off Frequency of Varactor Diode using this online calculator? To use this online calculator for Cut-off Frequency of Varactor Diode, enter Series Field Resistance (Rse) & Capacitance of Varactor Diode (Cj) and hit the calculate button. Here is how the Cut-off Frequency of Varactor Diode calculation can be explained with given input values -> 3.075577 = 1/(2*pi*34*0.001522).

FAQ

What is Cut-off Frequency of Varactor Diode?
The Cut-off frequency of varactor diode is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced rather than passing through and is represented as fc = 1/(2*pi*Rse*Cj) or Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode). Series Field Resistance refers to the opposition offered to the flow of current by the field winding around the circuit that is connected in series with the varactor diode & The Capacitance of Varactor Diode is the ability of a component or circuit to collect and store energy in the form of an electrical charge.
How to calculate Cut-off Frequency of Varactor Diode?
The Cut-off frequency of varactor diode is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced rather than passing through is calculated using Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode). To calculate Cut-off Frequency of Varactor Diode, you need Series Field Resistance (Rse) & Capacitance of Varactor Diode (Cj). With our tool, you need to enter the respective value for Series Field Resistance & Capacitance of Varactor Diode 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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