0195136047.pdf

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 lines

Diode current

ac component

varies about IQ,

the quiescent level

ωt

ωt

Q 2

Q

Q 1

VQ VB

IQ

i

+−vS(t) +−

+−vt

+−

VB − √ 2 VS

v

Diode voltage

ac component

varies about VQ,

the quiescent level

VB + √ 2 VS

Figure E7.2.5Continued