Question
Download Solution PDFFor a D-MOSFET when biased at VGS = 0 V having IDSS =30 mA and VGS (off) = -6V, the drain current is equal to ______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept of Drain Current in a D-MOSFET:
The drain current (ID) for a D-MOSFET can be calculated using the following formula:
ID = IDSS × (1 - VGS / VGS(off))2
Where,
- ID = Drain current
- IDSS = Drain current when VGS = 0 V
- VGS = Gate-source voltage
- VGS(off) = Gate-source cutoff voltage
Given Data:
- IDSS = 30 mA
- VGS(off) = -6 V
- VGS = 0 V
Calculation:
Using the formula:
ID = IDSS × (1 - VGS / VGS(off))2
Substitute the given values:
ID = 30 mA × (1 - 0 V / -6 V)2
ID = 30 mA × (1 - 0)2
ID = 30 mA × 1
ID = 30 mA
Conclusion:
Hence, the drain current is equal to 30 mA.
Last updated on May 29, 2025
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