Miscellaneous

FLASHER CIRCUIT 

Flasher Circuit

The Circuit

المكونات مـتوفرة بـــ 83 أ  هارون الرشيد

 أمام مدرسة النصر مصر الجديدة


 ت: 26381745 - 01001221399

LM555 and LM556 Timer Circuits

  This page presents general information and tips for using the LM555 timer and devices with other letter prefixes. There will be minor internal circuitry differences between 555 timer IC's from the various manufacturers but they all should be useable for the circuits on this page.

  If you would like to use any of these ideas, take the time to do some testing before using the LM555 timer in an actual circuit. All of the solutions on this page can also be applied to the LM556 - Dual timer.

  Some of the circuits on this page were developed just to see if they would work and have no intended use.

  The menu below links to various sections of this page that relate to the items in the index. New additions appear at the bottom of the list.

1. RESET And CONTROL Input Terminal Notes
2. LM555 - Monostable Oscillator Calculator
3. LM555 - Astable Oscillator Calculator + Capacitor Calculator
4. Basic Circuits For The LM555 Timer
5. Triggering And Timing Helpers For Monostable Timers
6. Controlling Circuits For LM555 Timers
7. Advanced Circuits For The LM555 Timer
8. LM556 Timers with Complimentary or Push-Pull Outputs
9. Interlocked Monostable Timers
10. Power-Up Reset For Monostable Timers
11. Cross Canceling For Monostable Timers
12. RS - Flip-Flop Made With A LM556 Timer
13. Using The LM555 As A Voltage Comparator Or Schmitt Trigger
14. 50% Output Duty Cycle (Variable)
15. Bipolar LED Driver
16. Electronic Time Constant Control
17. Voltage Controlled Pulse Width Oscillator
18. Sweeping Output Siren
19. D Type Flip-Flop Made With A LM556 Timer
20. Time Delay Circuits
21. Variable Period Oscillator (CD4017)
22. Missing Pulse Detectors / Negative Recovery Circuits
23. 50% Output Duty Cycle (Fixed) Using Logic Devices
24. Three Stage Cycling Timer Circuit (Traffic Light Circuit)
25. RESET Terminal - Currents And Voltages
26. 555 Timer Current Draws
27. Delayed Re-Triggering
28. 555 Timer Output Section
29. Various Power ON Delay Circuits
30. Average 51.5 % Output Duty Cycle Using A 555 Timer
31. Driving Loads Of Greater Than 15 Volts Or 200 Milliamps
32. 'N' Steps And Stop Circuit (CD4017)
33. Various Power OFF Delay Circuits