0195136047.pdf

334 DIGITAL BUILDING BLOCKS AND COMPUTER SYSTEMS J K Ck Q Q D Ck Q Q T (a) (b) (c) Q Q Input Output QQ Qn Qn Qn Qn T 0 1 Figure ...

PROBLEMS 335 Ck Master Slave 1 S 1 R 1 J K Q 1 Q 1 S 2 R 2 Q 2 Q 2 Q 2 (^2) Q 2 3 4 Figure P6.1.52 S 1 S 0 I 10 10 11 11 I 0 1 0 ...

336 DIGITAL BUILDING BLOCKS AND COMPUTER SYSTEMS *6.2.12Show an arrangement for multiplexing 64-to-1 by using four 16-to-1 multi ...

PROBLEMS 337 Input pulses (^1) T 0 Output Ck FF0 Y 0 T 1 Ck FF1 Y 1 T 2 Ck FF2 Y 2 Figure P6.2.29 1 Clock input line J Ck FF1 A ...

338 DIGITAL BUILDING BLOCKS AND COMPUTER SYSTEMS analog output voltage as a fraction of the reference voltage. *6.2.37Consider t ...

7 Semiconductor Devices 7.1 Semiconductors 7.2 Diodes 7.3 Bipolar Junction Transistors 7.4 Field-Effect Transistors CONTENTS ix ...

340 SEMICONDUCTOR DEVICES 4. 35 × 10 −^4 S/m. Good electrical characteristics and feasible fabrication technology have been requ ...

7.2 DIODES 341 corresponding to a switch. A diode acts like a switch that closes to allow current flow in the forward direction, ...

342 SEMICONDUCTOR DEVICES pnElectrons diffuse Holes diffuse (a) (b) (c) p p n n x x x Immobile ions Depletion region Donor Space ...

7.2 DIODES 343 (a) (b) 0 Maximum specified current Forward bias 10 5 −0.1 −0.05 0.05 0.1 V, V 0 −IS I, nA (c) 10 5 −1.0 −0.5 0.5 ...

344 SEMICONDUCTOR DEVICES exponential factor in Equation (7.2.3), the apparent shape of theI–Vcurve depends critically upon the ...

7.2 DIODES 345 Slope = 1/Rr Slope = 1/Rf 0 von i v i Ideal diode Rf v Rr D von v + − + Figure 7.2.6Piecewise-linear model of a d ...

346 SEMICONDUCTOR DEVICES Solution For determining the condition of the ideal diode, let us initially assume that it does not co ...

7.2 DIODES 347 SincevD=v 1 − 2 .6, the condition for the diode to conduct isv 1 > 2 .6V. 600 Ω v 0 (b) Ideal diode 1.2 kΩ vD ...

348 SEMICONDUCTOR DEVICES 12 V D iD, mA 60 40 20 0 0.5 1.0 1.5 2.0 2.5 (b) vD,V iD, mA 60 40 20 41.38 27.5 01.01.50.5 0.668 Qpoi ...

7.2 DIODES 349 WhenvD≥0orvS≥ 0 .6 V, the diode conducts. Once the diode conducts, the expression for the load voltage can be obt ...

350 SEMICONDUCTOR DEVICES (IQ,VQ) by graphical analysis. Extend the graphical analysis for different values of (i) load resistan ...

7.2 DIODES 351 (b) (c) V Vo VB RL 1 Q Q^1 2 Q 3 Q 4 RL 1 < RL 2 < RL 3 < RL 4 VB V I RL 2 RL 3 RL 4 0 0 IQ VB Load line ...

352 SEMICONDUCTOR DEVICES (d) (e) (f) Q 5 Q 4 Q 2 Q 3 Q 1 Load line slope = −1/RL VB 1 VB 2 VB 3 VB 4 VB 5 V I 0 RL VB v i Load ...

7.2 DIODES 353 (g) Load line Motion of load line ωt Q 2 Q Q 1 VQ VB IQ ωt i (VB + √ 2 VS) v Combination of direct and time-varyi ...