《电工与电子技术基础》 复习资料绘图化简题.docx

《电工与电子技术基础》 复习资料绘图化简题.docx

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《电工与电子技术基础》复习资料绘图化简题

《电工与电子技术基础》复习资料绘图化简题（Fundamentalsofelectricalandelectronictechnologyreviewdatadrawingsimplifiedproblem）

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"Reviewofthefundamentalsofelectricalandelectronictechnology""

Theninthchapteristhesequentiallogiccircuit

1.assumethattheinitialstateoftheflipflopsshownineachdiagramis0,andtrytodrawthewaveformattheQendundertheactionoftheCPpulse.

Answer:

2.assumethattheinitialstateoftheflipflopsshownineachdiagramis0,andtrytodrawthewaveformattheQendundertheactionoftheCPpulse.

Answer:

3.assumethattheinitialstateofeachTTLflip-flopis0asshowninthefollowingdiagram,andtrytodrawthewaveformattheQendundertheactionoftheCPpulse.

Answer:

4.assumethattheinitialstateofeachTTLflip-flopis0asshowninthefollowingdiagram,andtrytodrawthewaveformattheQendundertheactionoftheCPpulse.

Answer:

5.assumethattheinitialstateofeachTTLflip-flopis0asshowninthefollowingdiagram,andtrytodrawthewaveformattheQendundertheactionoftheCPpulse.

Answer:

6.assumethattheinitialstateofeachTTLflip-flopis0asshowninthefollowingdiagram,andtrytodrawthewaveformattheQendundertheactionoftheCPpulse.

Answer:

7.,knownTTLmaster-slaveJKflip-flop,inputJ,K,timelypulse,CPwaveform,showninfigure.PleasedrawthecorrespondingwaveformoftheoutputQ.Settheinitialtrigger0.

Answer:

8.,knownTTLmaster-slaveKJflip-flop,inputJ,K,timelypulse,CPwaveform,showninfigure.PleasedrawthecorrespondingwaveformoftheoutputQ.Settheinitialtrigger0.

Answer:

9.,aknown（TTL）JKtriggerinput,J,K,timelypulse,CPwaveformshowninthefigure.PleasedrawthecorrespondingwaveformoftheoutputQ.Settheinitialtrigger0.

Answer:

10.,aknown（TTL）JKtriggerinput,J,K,timelypulse,CPwaveformshowninthefigure.PleasedrawthecorrespondingwaveformoftheoutputQ.Settheinitialtrigger0.

Answer:

11.drawthewaveformoftheQflipflopsattheDflipflopsasshowninfigure（a）.Theknowninputwaveformisshowninfigure（B）.Theinitial0Qend.

Answer:

12.drawthewaveformoftheQflipflopsattheDflipflopsasshowninfigure（a）.Theknowninputwaveformisshowninfigure（B）.Theinitial0Qend.

Answer:

Theoutputwaveformof13.countercircuitandatalllevelsofthedeltaknownasshownbelow,pleasenote:

1,thecounterisstillalongtheleadingedgetriggertrigger?

2,synchronousorasynchronouscountingcircuit.3,isafewcountcircuit?

Answer:

1,thecounteristhefrontedgetrigger;2,itisanasynchronouscounter;3,itisafourbinaryortwobitbinarycounter.Asshowninfigure14.thecircuitiscomposedofcounterDflip-flop,explainitsfunction;anddrawthecorrespondingoutputwaveformwithCPpulse.（setinitialstateto000）

Answer:

thiscircuitis:

threebitbinary（oroneoctal）asynchronousadditioncounter,itswaveformisasfollows.

Asshowninfigure16.thecircuitiscomposedofcounterDflip-flop,explainitsfunction;anddrawthecorrespondingoutputwaveformwithCPpulse.

（setinitialstateto000）

Answer:

thiscircuitis:

threebitbinary（oroneoctal）asynchronoussubtractioncounter,itswaveformisasfollows.

Asshowninfigure17.thecircuitiscomposedofcounterDflip-flop,explainitsfunction;anddrawthecorrespondingoutputwaveformwithCPpulse.（setinitialstateto000）

Answer:

thiscircuitis:

threebitbinary（oroneoctal）asynchronoussubtractioncounter,itswaveformisasfollows.

Asshowninfigure18.thecircuitiscomposedofcounterDflip-flop,explainitsfunction;anddrawthecorrespondingoutputwaveformwithCPpulse.（setinitialstateto000）

Answer:

thiscircuitis:

threebitbinary（oroneoctal）asynchronousadditioncounter,itswaveformisasfollows.

Asshowninfigure19.thecircuitiscomposedofcounterJKflip-flop,explainitsfunction;anddrawthecorrespondingoutputwaveformwithCPpulse.（setinitialstateto000）

Answer:

thiscircuitis:

threebitbinary（oroneoctal）asynchronoussubtractioncounter,itswaveformisasfollows.

Asshowninfigure20.thecircuitiscomposedofcounterJKflip-flop,explainitsfunction;anddrawthecorrespondingoutputwaveformwithCPpulse.（setinitialstateto000）

Answer:

thiscircuitis:

threebitbinary（oroneoctal）asynchronousadditioncounter,itswaveformisasfollows.

Asshowninfigure21.thecircuitiscomposedofcounterJKflip-flop,explainitsfunction;anddrawthecorrespondingoutputwaveformwithCPpulse.（setinitialstateto000）

Answer:

thiscircuitis:

threebitbinary（oroneoctal）asynchronousadditioncounter,itswaveformisasfollows.

Asshowninfigure22.thecircuitiscomposedofcounterJKflip-flop,explainitsfunction;anddrawthecorrespondingoutputwaveformwithCPpulse.（setinitialstateto000）

Answer:

thiscircuitis:

threebitbinary（oroneoctal）asynchronoussubtractioncounter,itswaveformisasfollows.

The23.circuitbyTTLtriggerisshowninFigure1:

thelogicfunctionofcircuit;thedrawwaveformofQ0andQ1（settheinitialstatefor00）.

Answer:

bythecircuitcanknow,J0=Q1,J1=,Q0,candrawtheQ0,Q1waveform,asshown.Thiscircuitisasynchronousthreedecimalunit.

The24.circuitbyTTLtriggerisshowninFigure1:

thelogicfunctionofcircuit;thedrawwaveformofQ0andQ1（settheinitialstatefor00）.

Answer:

Ascanbeseenbythecircuit,J0=Q1,J1=,Q0,youcandrawQ0,Q1waveform,asshown.Thiscircuitisasynchronousthreedecimalunit.

Thecircuitandtheinputsignalasshowninfigure25.bythewaveformconsistingofTTLtriggers,drawthewaveformofQ0andQ1.（settheinitialstateofeachflip-flopto0）

Answer:

Thecircuitandtheinputsignalasshowninfigure26.bythewaveformconsistingofTTLtriggers,drawthewaveformofQ0andQ1.（settheinitialstateofeachflip-flopto0）

Answer:

Twenty-seven

ThecircuitandtheinputsignalwaveformasshownbytheTTLflipflops,drawthewaveformofQ0andQ1.（settheinitialstateofeachflip-flopto0）

Answer:

Thecircuitandtheinputsignalasshowninfigure28.bythewaveformconsistingofTTLtriggers,drawthewaveformofQ0andQ1.（settheinitialstateofeachflip-flopto0）

Answer:

Eighthchapters

Combinationallogiccircuit

1.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A,B,B=C=A,B+B,C

A

01010101

B

00110011

C

00001111

Y

00010011

2.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A+B+A.B

A

0101

B

0011

Y

1001

3.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A?

B+A?

B

A

1014combinationallogiccircuits,asshown,trytowritelogicalexpressions.

B

0011

Y

0110

Answer:

Y=A?

B?

C.D.E?

5.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A,B,A,B,C,B,C=A,A,B,C+A,B,C,B,C=A,B,,C,A（A+B,C）C

A

01010101

B

00110011

C

00001111

Y

01010110

6.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A,A,B,B,A=A,A,B+B,A=B=A,B=+B（A+B）

A

0101

B

0011

Y

0110

7.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A,B,B=C=A,B+B,C

A

01010101

B

00110011

C

00001111

Y

00010011

8.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A+,B+,B+,C=（A+B）+（B+C）

A

010

B

001

C

000

Y

001

10101

10011

01111

10111

9.combinationallogiccircuits,asshown,trytowritelogicalexpressions,

Mergeandsimplify.Listthestatetruthtableofthecircuit.

Answer:

Y=A+,B=A+,B+,B+C=A+,B+C,B+C

A

01010101

B

00110011

C

00001111

Y

01111111

10.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A,B+B=C=A=B=B=C=ABC

A

Zero

B

Zero

C

Zero

Y

Zero

1010101

0110011

0001111

0000001

11.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A?

B+B?

C

A

01010101

B

00110011

C

00001111

Y

00010011

12.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=（A+B）?

（B+C）

A

01

B

00

C

00

Y

00

010101

110011

001111

110111

13.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A+,B+,B+C=A+,B+C

A

01010101

B

00110011

C

00001111

Y

01111111

14.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

Answer:

Y=A,B=B=C=A=B?

C

A

0101

B

0011

C

0000

Y

0000

0101

0011

1111

0001

15.combinationallogiccircuits,asshown,trytowritelogicalexpressionsandsimplifythem.Listthestatetruthtableofthecircuit.

An