Projetos de Circuitos Eletrônicos de Osciladores e Temporizadores

1. 1 Second Time Base From Crystal Osc.
2. 10 Hz to 10 Khz VCO with Square and Triangle wave
3. 1KHz Sinewave generator
4. 5 to 30 Minute Timer
5. 555 oscillator
6. 555 time delay circuit
7. 555 timer
8. 555 Timer Tutorial + Circuits
9. A GPS receiver based frequency standard
10. AD9852 DDS schematic
11. Astable Multivibrator
12. Budget timer
13. Cheap 40KHz clock
14. Circuit that momentarily closes a pair of contacts at long intervals
15. Clock divider
16. Clock doubler
17. Clock generator
18. CMOS oscillator
19. Colpitts 1 to 20 MHz Crystal Oscillator
20. Countdown timer with relay
21. Crystal 32.768KHz CMOS Oscillator
22. Crystal oscillator
23. D Flip-flot one-shot circuits (PDF)
24. Darkroom camera shutter timer
25. Day / Night / 24 Hour Select Sensor
26. DDS using AD9835
27. Divide by 1.5 counter (PFD)
28. Divide By 1-1/2 Circuit
29. Generating a Delayed Pulse With a dual 555 Timer
30. GPS receiver clock circuit
31. High Precision GPS/TV controlled Reference Oscillator
32. High-output square wave generator (PDF)
33. Line powered 60Hz clock generator (PDF)
34. Long period timer
35. Low frequency clock
36. Low Voltage , High Current Time Delay Circuit
37. Micropower pulse generator (PDF)
38. Micro-power pulse generator (PDF)
39. Mini DDS (Direct Digital Synthesis)
40. Monostable multivibrator
41. NE555 Basic Monostable
42. Onboard Fogger Timer
43. One transistor timer
44. Power-Off Time Delay Relay Circuit
45. Power-On Time Delay Relay Circuit
46. Push Button Switch Debouncer
47. 'Rounding Off' a square wave
48. Sawtooth wave oscillator
49. Simple sinewave generator
50. Sine/Cosine wave oscillator
51. Square wave oscillator
52. Square wave oscillator
53. Square wave to sine wave converter
54. Stable 40KHz clock
55. Stable multivibrator (IC)
56. Stable multivibrator (Transistor)
57. Switch debounce using 555
58. Time Delay Relay
59. Time Delay Relay
60. Timed beeper
61. Timer based on Microchip PIC16F628
62. Triangle wave oscillator
63. TV based Receiver for a Standard Frequency Generator
64. Two Transistor Sine Wave Oscillator
65. Variable timer
66. Versatile electronic timer
67. Wide-swing Variable Crystal Oscillator