© Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2...

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© Bob York Common Emitter Amps V gen R gen V cc V out R c V gen R in R gen v in R b1 R b2 V in V cc V out R c R b1 R b2 R L R out R L V in R in v in β i b R out V out β i b

Transcript of © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2...

Page 1: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

Common Emitter Amps

Vgen

Rgen

Vcc

Vout

Rc

Vgen Rin

Rgen

vin

Rb1

Rb2

Vin

Vcc

Vout

Rc

Rb1

Rb2

RL

Rout RLVin Rin vin

β ib

Rout Vout

β ib

Page 2: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

Lab Circuits

VoutRb1

Vin

2.2 kΩ

10 kΩ

1 μF

1 μF

+10 V

10 μF1kΩ

Vgen

10 kΩ

100 Ω

Page 3: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

Common Emitter Amplifier

Vgen

Rgen

Vcc

Vout

Rc

Rb1

Rb2

RL

∞Re

Page 4: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

Common Base Amplifier

B C

E

B

vbe

C

EVin

Vout

Ie

Vcc

Rc

Vin vin Rd Voutout d

vin e

V RA

V r

out dR R

in eR r

β ibβ ib

β ib

re re

re

Page 5: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

Common-Base Amplifier

Vgen

Rgen

Vcc

Vout

Rc

Rb1Rb2

RL

Re

Vgen Rin

Rgen

vin

gmvinRout RL

outv m out L

in

VA g R R

V

out cR R

in e eR R r

Page 6: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

Lab experiment

Vout

Vin

100 kΩ

100 Ω

1 μF

100 kΩ

Vgen 10 Ω

1 kΩ

Rc

+12 V

Page 7: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

Multistage Amplifier

Vin

4.7 kΩ

47 kΩ

1 μF

+15 V

100 μF3.3 kΩ

Vgen

10 kΩ

10 Ω

Vout

2.2 kΩ

1 μF

+15 V

100 μF

3.3 kΩ

Va

100 kΩ

Page 8: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

HW

Vin

4.7 kΩ

47 kΩ

+15 V

3.3 kΩ

Vout

2.2 kΩ

+15 V

3.3 kΩ

Va

100 kΩ

Page 9: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

Emitter Follower

Vgen

Rgen

Vcc

Vout

Rc

Rb1

Rb2

RL

Re

Page 10: © Bob York Common Emitter Amps V gen R gen V cc V out RcRc V gen R in R gen v in ∞ ∞ R b1 R b2 V in V cc V out RcRc ∞ ∞ R b1 R b2 RLRL R out RLRL V in.

© Bob York

CE Resistive Feedback

Vcc

Vout

Rc

Rf

Vin

Vcc

Vout

Ic

Rf

Vin

RL

Vgen

Rgen

gmvbeRLVin

Rf

vbe

gmvbeRout Vout

Rf

vbe