Introduction to FET’s
,Current Controlled vs Voltage Controlled Devices
2
, Types of FET’s
• JFET – Junction Field Effect Transistor
• MOSFET – Metal Oxide Semiconductor Field Effect
Transistor
– D-MOSFET - Depletion Mode MOSFET
– E- MOSFET - Enhancement Mode MOSFET
3
, JFET Construction
There are two types of JFET’s: n-channel and p-channel.
The n-channel is more widely used.
There are three terminals: Drain (D) and Source (S) are connected to n-channel
Gate (G) is connected to the p-type material
4
,Current Controlled vs Voltage Controlled Devices
2
, Types of FET’s
• JFET – Junction Field Effect Transistor
• MOSFET – Metal Oxide Semiconductor Field Effect
Transistor
– D-MOSFET - Depletion Mode MOSFET
– E- MOSFET - Enhancement Mode MOSFET
3
, JFET Construction
There are two types of JFET’s: n-channel and p-channel.
The n-channel is more widely used.
There are three terminals: Drain (D) and Source (S) are connected to n-channel
Gate (G) is connected to the p-type material
4