Gate to Source Capacitance Formula

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Gate to source Capacitance is defined as the capacitance that is observed between the gate and source of the Junction of MOSFET. Check FAQs
Cgs=Cg-(Cgb+Cgd)
Cgs - Gate to Source Capacitance?Cg - Gate Capacitance?Cgb - Gate to Base Capacitance?Cgd - Gate to Drain Capacitance?

Gate to Source Capacitance Example

With values
With units
Only example

Here is how the Gate to Source Capacitance equation looks like with Values.

Here is how the Gate to Source Capacitance equation looks like with Units.

Here is how the Gate to Source Capacitance equation looks like.

14.61Edit=59.61Edit-(35Edit+10Edit)
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Gate to Source Capacitance Solution

Follow our step by step solution on how to calculate Gate to Source Capacitance?

FIRST Step Consider the formula
Cgs=Cg-(Cgb+Cgd)
Next Step Substitute values of Variables
Cgs=59.61μF-(35μF+10μF)
Next Step Convert Units
Cgs=6E-5F-(3.5E-5F+1E-5F)
Next Step Prepare to Evaluate
Cgs=6E-5-(3.5E-5+1E-5)
Next Step Evaluate
Cgs=1.461E-05F
LAST Step Convert to Output's Unit
Cgs=14.61μF

Gate to Source Capacitance Formula Elements

Variables
Gate to Source Capacitance
Gate to source Capacitance is defined as the capacitance that is observed between the gate and source of the Junction of MOSFET.
Symbol: Cgs
Measurement: CapacitanceUnit: μF
Note: Value should be greater than 0.
Gate Capacitance
Gate Capacitance is the capacitance of the gate terminal of a field-effect transistor.
Symbol: Cg
Measurement: CapacitanceUnit: μF
Note: Value should be greater than 0.
Gate to Base Capacitance
Gate to Base Capacitance is defined as the capacitance that is observed between the gate and Base of the Junction of MOSFET.
Symbol: Cgb
Measurement: CapacitanceUnit: μF
Note: Value should be greater than 0.
Gate to Drain Capacitance
Gate to Drain Capacitance is defined as the capacitance that is observed between the gate and drain of the Junction of MOSFET.
Symbol: Cgd
Measurement: CapacitanceUnit: μF
Note: Value should be greater than 0.

Other formulas in Analog VLSI Design category

​Go Drain Voltage
Vbc=PdfC
​Go Gate to Base Capacitance
Cgb=Cg-(Cgs+Cgd)
​Go Gate to Channel Voltage
Vgc=(QchCg)+Vt
​Go Gate to Collector Potential
Vgc=Vgs+Vgd2

How to Evaluate Gate to Source Capacitance?

Gate to Source Capacitance evaluator uses Gate to Source Capacitance = Gate Capacitance-(Gate to Base Capacitance+Gate to Drain Capacitance) to evaluate the Gate to Source Capacitance, The Gate to Source Capacitance formula is defined as the capacitance that is observed between the gate and the source of the Junction of MOSFET. Gate to Source Capacitance is denoted by Cgs symbol.

How to evaluate Gate to Source Capacitance using this online evaluator? To use this online evaluator for Gate to Source Capacitance, enter Gate Capacitance (Cg), Gate to Base Capacitance (Cgb) & Gate to Drain Capacitance (Cgd) and hit the calculate button.

FAQs on Gate to Source Capacitance

What is the formula to find Gate to Source Capacitance?
The formula of Gate to Source Capacitance is expressed as Gate to Source Capacitance = Gate Capacitance-(Gate to Base Capacitance+Gate to Drain Capacitance). Here is an example- 1.5E+7 = 5.961E-05-(3.5E-05+1E-05).
How to calculate Gate to Source Capacitance?
With Gate Capacitance (Cg), Gate to Base Capacitance (Cgb) & Gate to Drain Capacitance (Cgd) we can find Gate to Source Capacitance using the formula - Gate to Source Capacitance = Gate Capacitance-(Gate to Base Capacitance+Gate to Drain Capacitance).
Can the Gate to Source Capacitance be negative?
No, the Gate to Source Capacitance, measured in Capacitance cannot be negative.
Which unit is used to measure Gate to Source Capacitance?
Gate to Source Capacitance is usually measured using the Microfarad[μF] for Capacitance. Farad[μF], Kilofarad[μF], Millifarad[μF] are the few other units in which Gate to Source Capacitance can be measured.
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