V1 M R1 12V 00 D1 R2 00 C2 C1 =1μF =9.4nF U1 -vco RST OUT DIS THR TRI сом GND XSC2 Ext Tig 555 TIMER RATED T=tc +td=0.693R1C1 +0.693R2C1 = 0.693(R1 +R2)C1...........1 f=1/T1/(tc+td) .... Use the equation (1) (or 2) to find the values for R1 and R2 A. Design a pulse generator for frequencies = 15 KHz, 10 KHz and 5 KHz with a 70% duty cycle. Use C1 = 9.4 nF and C = 1uF. B. For frequency = 200 Hz, generate the waveform for the following duty cycles: 90%, 70%, 50%, 30%, and 10%.

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Publisher:Robert L. Boylestad
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V1
M
R1
12V
00
D1
R2
00
C2
C1
=1μF
=9.4nF
U1
-vco
RST
OUT
DIS
THR
TRI
сом
GND
XSC2
Ext Tig
555 TIMER RATED
T=tc +td=0.693R1C1 +0.693R2C1 = 0.693(R1 +R2)C1...........1
f=1/T1/(tc+td) ....
Use the equation (1) (or 2) to find the values for R1 and R2
A. Design a pulse generator for frequencies = 15 KHz, 10 KHz and 5 KHz with a
70% duty cycle. Use C1 = 9.4 nF and C = 1uF.
B. For frequency = 200 Hz, generate the waveform for the following duty cycles:
90%, 70%, 50%, 30%, and 10%.
Transcribed Image Text:V1 M R1 12V 00 D1 R2 00 C2 C1 =1μF =9.4nF U1 -vco RST OUT DIS THR TRI сом GND XSC2 Ext Tig 555 TIMER RATED T=tc +td=0.693R1C1 +0.693R2C1 = 0.693(R1 +R2)C1...........1 f=1/T1/(tc+td) .... Use the equation (1) (or 2) to find the values for R1 and R2 A. Design a pulse generator for frequencies = 15 KHz, 10 KHz and 5 KHz with a 70% duty cycle. Use C1 = 9.4 nF and C = 1uF. B. For frequency = 200 Hz, generate the waveform for the following duty cycles: 90%, 70%, 50%, 30%, and 10%.
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