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Electronic Devices and Circuits
Digital Switching in MOSFET
Presented by: Muhammad Ubaidullah Ghaffary(20-TE-91)
Malik Ameer Mavia(20-TE-71)
Digital Switching
Digital
Devices
Micro
Processor
ALU
Logic
Gates
CMOS(Complementary MOS)
 Technology to construct ICs, Logic gates etc.
 pMOS:
 Used to make Pull Up Networks(PUN)
 In PUN + suggests series and . suggest parallel
 Passes 1(VDD)
 0 to gate will ON
 1 to gate will OFF
 nMOS:
 Used to make Pull Down Networks(PDN)
 In PUN . suggests series and + suggest parallel
 Passes 0(ground)
 1 to gate will ON
 0 to gate will OFF
CMOS(Complementary MOS)
CMOS Inverter Operation
 When Vin=0 Vout=VDD
 When Vin=VDD Vout= 0
NAND Operation
A B Output
0 0 1
0 1 1
1 0 1
1 1 0
NOR Operation
MOSFET In Power Switching
 MOSFET has
 Positive temperature coefficient which prevents thermal runway.
 Low Power Losses
 Fast switching Speed
 MOSFETs are used for
 Motor Control
 DC to AC Conversion
 DC to DC Conversion
 Load Switching
Thank You

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