Electronic Devices and Circuit Theory 11th. Edition by Boylestad, Robert; Nashelsky, Louis | 9780132622264 | 0132622262

Electronic Devices and Circuits

Electronic Devices and Circuit Theory

239 SOLVED PROBLEMS

Question: 17.3

For the network of Fig. 17.64 , if VBB = 12 V, R = 20 kΩ, C = 1 mF, RK = 100 Ω, RB1 a. V P . b. R max and R min . c. T and frequency of oscillation. d. The waveforms of vA, vG, and v K . = 10 kΩ, RB2 = 5 kΩ, IP = 100 µA, VV = 1 V, and IV = 5.5 mA, determine: a. VP . b. Rmax and Rmin . c. T and ...

Verified Answer:

a. Eq. (17.20):

V_{P}=\eta V_{B B}+V_{D}[/l...

Question: 17.1

Given the relaxation oscillator of Fig. 17.45 : a. Determine RB1 and RB2 at IE = 0 A. b. Calculate V P , the voltage necessary to turn on the UJT. c. Determine whether R 1 is within the permissible range of values as determined by Eq. (17.8) to ensure firing of the UJT. d. Determine the frequency ...

Verified Answer:

\eta=\frac{R_{B_{1}}}{R_{B_{1}}+R_{B_{2}...

Question: 17.2

Determine RB1 and VBB for a silicon PUT if it is determined that h = 0.8, VP = 10.3 V, and RB2 = 5 kΩ.. ...

Verified Answer:

Eq. (17.4):

\eta=\frac{R_{B_{2}}}{R_...

Question: 5.5

For the network of Fig. 5.33 (with C E unconnected), determine (using appropriate approximations): a. r e . b. Z i . c. Z o . d. A v ...

Verified Answer:

a. Testing

\beta R_{E}>10 R_{2}

....

Question: 12.14

Calculate the total harmonic distortion for the amplitude components given in Example 12.13 . ...

Verified Answer:

Using the computed values of

D_{2}=0.10, D_...

Question: 15.16

Determine the regulated output voltage of the circuit in Fig. 15.31 . ...

Verified Answer:

The output voltage calculated using Eq. (15.21) [l...

Question: 15.15

Determine the regulated voltage in the circuit of Fig. 15.30 with R1 = 240 Ω and R2 = 2.4 kΩ. ...

Verified Answer:

Eq. :(15.21)

V_{o}=V_{ ref }\left(1+\frac{R...

Question: 15.14

Determine the maximum value of load current at which regulation is maintained for the circuit of Fig. 15.29 . ...

Verified Answer:

To maintain

V_{i}(\min ) \geq 7.3 V

...

Question: 15.13

For a transformer output of 15 V and a filter capacitor of 250 µF, calculate the minimum input voltage when connected to a load drawing 400 mA. ...

Verified Answer:

The voltages across the filter capacitor are [late...

Question: 15.12

Draw a voltage supply using a full-wave bridge rectifier, capacitor filter, and IC regulator to provide an output of + 5 V. ...

Verified Answer:

The resulting circuit is shown in Fig. 15.29