Miscellaneous circuits - part 1

1. Duty-cycle to dc converter.

duty-cycle to dc converter

2. Frequency divider (Fin<200мГц; IC's - MC10137 and 7400).

Frequency divider

3. Replacement for Lambda-diode.

Replacement for Lambda-diode circuit

4. Voltage limiter.

Voltage limiter circuit

5. Frequency doubler circuit diagram.

Frequency doubler circuit

6. Triangle-wave Generator.

Triangle Wave Generator circuit

7. Frequency comparator circuit diagram. (with IC's 74121 and 7474)

frequency detector circuit

8. Analog of DIAC circuit schematic.

Analog of DIAC circuit

9. Comparator with two edges.

Comparator with two edges circuit

10. Frequency divider.

Frequency divider circuit

11. Buffer/inverter gate made of the trigger CD4013.

Buffer/inverter gate made of trigger

12. Circuit finding difference of two frequencies and phase detector circuit.

Circuit finding difference of two frequencies and phase detector circuit

13. Contact bounce eliminator circuit.

Contact bounce eliminator circuit

14. Narrow bandpass filte.

Narrow bandpass filter circuit

15. Current stabilizer for Zener diode.

Current stabilizer for Zener

16. Restore signal by DC.

Restore signal by DC

17. Phase changer with constant amplitude of signal at output.

phase changer with constant amplitude circuit diagram

18. Phase filter circuit.

phase filter circuit

19. Edge detection circuit diagram.

Edge detection circuit

20. Frequency comparator circuit diagram.

Frequency comparator circuit

21. Comparator-monostable multivibrator based on LM139 voltage comparator .

Comparator-monostable multivibrator circuit diagram

22. Monostable multivibrator with wide range of pulses (CD4000).

Monostable multivibrator with wide range of pulses

23. Monostable multivibrator doubles number of pulses (CD4000).

Monostable multivibrator doubles number of pulses circuit

24. Monostable multivibrator based on inductor (CD4000).

Monostable multivibrator based on inductor circuit

25. Monostable multivibrator based on inductor (CD4000).

Monostable multivibrator based on inductor circuit

26. Monostable multivibrator based on inductor and trigger (CD4000).

Monostable multivibrator based on inductor and trigger circuit

27. Duty-cycle indicator circuit.

If Duty-cycle=50% then U1=U2.

duty-cycle indicator circuit

28. Analog of zener diode with low operating voltage.

Analog of zener diode with low operating voltage circuit

29. Synchronous detector.

Synchronous detector

30. Output stage of phase detecto.

Output stage of phase detector

31. Gyrator circuit.

Gyrator circuit

32. Detector of the frequency. (CD4000)

Detector of frequency circuit diagram

33. Regenerative filter circuit.

Regenerative filter circuit

34. Comparator-monostable multivibrator.

Comparator-monostable multivibrator circuit

35. Filter for carrier frequency.

Filter for carrier frequency

36. Voice frequency doubler circuit.

Voice frequency doubler circuit

37. Notch filter with Q multiplier circuit.

Notch filter with Q multiplier circuit

38. Flashes lights based on neon lamps circuit diagram.

Flashes lights based on neon lamps circuit

39. Output stage of a DC to DC converter circuit.

Switching stage for voltage converter circuit

40. Simple ADC with potential divider circuit based on CD4000 series. See details

ADC with potential divider circuit

41. Simple ADC with current summator circuit based on CD4000 series. See details

ADC with current summator

42. 3D image on the screen of the oscilloscope.

3D image on the oscilloscope

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