MOS Cap detail view STA: NLDM vs CCS model detailed Analysis STA: GBA vs PBA detailed Analysis Short Channel mosfet with all secondry effect Single Mosfet circuit analysis Cascode Analysis RC, RL circuit with different condition.
RC circuit
We see systyem response equatin in system blog eq, lets V(0-) = 0v so Vo(0+) = 0v as capactior does not allow sudden change, or at t=0, where input is sudden changing from 0 to 1 there will be ∞ frequency. so Zc = 1/jwc = 0 mean capacitor short circuit, so Vo(0) = 0v... Continue Reading →
Decreasing of Crosstalk glitch with decreasing coupling cap
We all know crosstalk decrease with decreasing coupling mean spreading the coupling cap metal wire. so , why with decreasing coupling cap crostalk decrease? as if cap decrease, the it will fast charge so the change of input should wil be fast or can say that glith hight will be more, but it reduced why?... Continue Reading →
Miller Cap
in above citcuit Vo1 =0, Vo2 = V1 as Vo1 = 0v , we can do is virtual gnd not actual GND, like below. so left R is betwen V1 and gnd right R is between -v1 and gnd. same way, in bleow cicruit there is some where null voltage point going to be if... Continue Reading →
CMOS Inverter Characterstics
Below are the cmos inverter characterstics: lets understand that how different region of operation occur during input transition and current graph of cmos inverter nmos and pmos region of operation eq: N-mos operation: Vgs < Vth (cutt-off) Vgs > Vth and Vds < Vgs -Vth (Linear) Vgs > Vth and Vds >= Vgs -Vth (saturation)... Continue Reading →
N-Mos Pass Logic
Vgs < Vth (cutt-off) Vgs > Vth and Vds < Vgs -Vth (Linear) Vgs > Vth and Vds >= Vgs -Vth (Saturation) Lets 5v is applied at gate, Vtn =1v. In n-mos higher potential terminla is considerd as drain, Vs = Vo = 0V (Initially). When Vin = Vd =0v Vgs = 5 - 0... Continue Reading →
System Response
Any system response comprise of two response y(t) = ytr(t) + yss(t) ytr(t) is transient response of system which define the speed of system mean time constant(τ) of system. it due to only presense of storing element in system (capacitor, inductor) yss(t) is stady state response of system which define error and final state of... Continue Reading →
KVL
We know that sum of all voltage in a closed loop is zero is defined as KVL. why? or is it always true? is KVL valid everywhere? lets discuss it work done to move from A to B in presense of charge Q = change in potnetial energy from A to B dW = ΔPE... Continue Reading →
Ohm’s Law
In Conductive material, electron movment is random and its average motion across cross sectional area is zero due to thermal equlibrium so, to flow current we have to disturb thermal equilibrium. when we create potenial difference by applying battery to disturb thermal equilirium. potenial difference created by battery will create electric field (E-Field is potenial... Continue Reading →
Current
Curent: It is flow of charge. I=dQ/dt Current flow is Three type: Conduction Current : which need conductive medium to flow, ohm's law and KCL is aplicable on conduction current. Convention Current : which does not require conductive medium. Eg. in Cathode Ray Tube, thunderstorm etc. KCL does not applicable. Displacement Current : where charge... Continue Reading →
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