Circuit Simulator - 555 Square Wave Generator
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Learn how to use circuit simulator software to design your own 555 Square Wave Generator circuits.
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You can easily design 555 Square Wave Generator circuit diagrams by practising with the given circuit simulator. With this online circuit simulator, you can design and simulate your own electronic circuits.
555 Square Wave Generator
Circuit Description:
This is a simple square wave oscillator using a 555 timer chip.
A timing interval starts when the trigger input ("tr") goes lower than 1/3 Vin, or 3.33V. When this happens, the 555 output goes high, and the 555 waits for the threshold input ("th") to reach 2/3 Vin, or 6.67V. As the capacitor charges, the threshold input slowly rises until it reaches the required level. Then, the timing interval ends, the output goes low, and the capacitor is discharged through the "dis" input.
When the capacitor is discharged enough so that the trigger reaches 3.33V, then a new timing interval begins. The end result is a square wave.
A timing interval starts when the trigger input ("tr") goes lower than 1/3 Vin, or 3.33V. When this happens, the 555 output goes high, and the 555 waits for the threshold input ("th") to reach 2/3 Vin, or 6.67V. As the capacitor charges, the threshold input slowly rises until it reaches the required level. Then, the timing interval ends, the output goes low, and the capacitor is discharged through the "dis" input.
When the capacitor is discharged enough so that the trigger reaches 3.33V, then a new timing interval begins. The end result is a square wave.
Discussion:
6 comments Page 1 of 1.
Muni said:
1 decade ago
What is the maximum frequency of square wave generated by 555 timer?
(3)
Bamband haryanto said:
1 decade ago
Hello,
I'm Bambang haryanto from indonesia with no electronic background.
I need your help to plan electronic circuit based on timer 555 IC to generate pulse 3.5v, width 100msec from input trigger 0.5v, 5 msec.
If you could help me to prepare ready for use that electronic circuit im very thankfull.
Thank you.
I'm Bambang haryanto from indonesia with no electronic background.
I need your help to plan electronic circuit based on timer 555 IC to generate pulse 3.5v, width 100msec from input trigger 0.5v, 5 msec.
If you could help me to prepare ready for use that electronic circuit im very thankfull.
Thank you.
(5)
Prashant said:
1 decade ago
What do you understand by a phased array? Describe the most common use of such a system.
(1)
Prashant said:
1 decade ago
Can a DC-DC converter have efficiency of over 98%? If so, how? And if not, why?
(6)
Prashant said:
1 decade ago
How would you interface a 0-10 Volt output sensor with an ADC with 3.3 Volt limit?
(1)
Srivamsi said:
1 decade ago
Why the trigger reaches 3.33V, then a new timing interval begins?
(5)
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