S- Spo 20 So Sp J J 22 J Sp Q Sp O: c. C ca K K K 0 K 0 K 0 Rp O Rp Rp Rp O Rp b. Ring clock input 1 pulse per 10 second

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S Spo 20 So Sp J J 22 J Sp Q Sp O C C Ca K K K 0 K 0 K 0 Rp O Rp Rp Rp O Rp B Ring Clock Input 1 Pulse Per 10 Second 1 (70.88 KiB) Viewed 16 times

S- Spo 20 So Sp J J 22 J Sp Q Sp O: c. C ca K K K 0 K 0 K 0 Rp O Rp Rp Rp O Rp b. Ring clock input 1 pulse per 10 seconds (daytime only) с 0.001 F LOW-night HIGH-day R + V 1 ΚΩ Ipps clock oscillator 100 ΚΩ DU 74HCT14 Open LOW-day base HIGH-night photo-transistor E OF CDS photocell 4 pps MOD-10 (daytime) LOW-day 1 pps-night Q 04 3 To red light 2 To yellow light O lo To groen light D- Figure 1 Traffic Light Timing Series. Figure 1 (for questions no. 3 and 4) shows the use of ring shift counters to turn on traffic lights during the day in order: red light 20 s, yellow light 10 s and green light 20 s. At night, the yellow light will turn on and off continuously. a 3. For the purposes of the circuit, design a astabil multivibrator with a frequency of 1 Hz (1 pps) with a duty cycle of 70%. a. Calculate the required components. b. Describe the network. 4. a. Describe the characteristics of the ring shift counter circuit b. Draw Q0, Q1, Q2, Q3, and 04 signals on the ring shift counter circuit for the first 10 clock pulses