Question

1:-(50) Find: RG - Yas , Im and the region of geration kn = 60 mAlv? y2v M 15V till IMR & Po = 20012 the region

Answer 1

Solution:

In MOSFET the gate current will be zero hence Vd=Vg

​​​​​From the circuit Vs= 0V

Vds= Vgs.

The given MOSFET is in saturation because drain and gate are shorted.

We assumes Kn = kn/2 .

Kn= unCox W/2L.

1. 
   Q tisu IMN = 2000 = 0,2k1 un A OA since 16:0 The MOSFET is in saturation region Becane gate and drain are shorted Vo: VG and Va=0 current equation in satwalion Yegion 22 Ios Kn 2 [(Vas V4) kn (VG -V+)? Tos 2 uncox W = kn 6omalve If 11 kn = GOMAV lin Cup w 21 Kn= kn
   
2. 
   Tр - Kn (No – 4 ) 2. kn = = 6omaly? knä encoxw L Jк (ох 0 In 60 хіб? ( vo-) Kn= encox w 2. 2C kn = kn KVL 15 - 0, 21р – Vo Тр - 1 — ЗОХto 15 -0. 2. Г) -2 To 0.03 ( 13 -0.2 Th) 3.3.30 гр (64+ o, ouT) - S. 2.Гр ил 6. би Тр 3. TIT) +164 фа 411, ч м, 6 Тр И. ИО МА MOSFET bill not burk in saturation 4. Ио и в In Insat = 4. Ио ме
   
3. 
   gm 2x nios kna linloow 2L gm = 2 30m4, 40m knakn 2 Im = 22.98 malv kn = 60 2 Kn 3 omalu Vas= Voove Vs=0 VG =V6 15 - 0. 2X1 - Vasco vus = 15-0,2x u.uomXK 15 - 0.88 VGS 14.12 Volt To = 4.noma vas = 14.12V gm = 22.97 m Alu