■ JLCPCB Prototype for $2(Any Color): jlcpcb.com
Hi, today we see how a Strobe Light works.
For this project I decided to use the famous NE555 IC with a fantastic RED PCB.
In this project the 555 timer IC works as an astable multivibrator and generates a frequency, the square wave output drives the three LEDs. The flashing frequency is adjust by a 47uF electrolytic capacitor and a 10K potentiometer is used to adjust the *Duty Cycle. The output signal from 555 is brought directly to the LEDs, which must be connected in parallel, each with its own resistance. Another very important feature is the maximum output current of the NE555 (200mA) this makes us understand that we can add more than three LEDs, because each LED absorbs about 20mA.. but do not put more than 10 LEDs otherwise you risk to damaging the NE555 IC.
* What is Duty Cycle in NE555 timer?
The mark to space ratio of a square wave or pulse oscillator is often referred to as the Duty Cycle. This is a more useful term when the purpose of an output wave is to drive some device such as a motor. Changing the duty cycle changes the average DC voltage or DC current level of the output, and hence the power supplied to control the speed of the motor. This is also important in driving output devices such as lamps, heaters and many others. The Duty Cycle is a term that describes the percentage of each cycle taken up by the active or high period.
After trying the excellent service offered by JLCPCB I recommend it, the quality of the circuits is high, customer service is always available and professional, the time of realization is short and the delivery of PCBs is by express courier.
JLCPCB is a great place to get hight quality custom circuit boards at an extremely low price, you can buy 10 PCB Boards for 2 Dollars.
JLCPCB is the largest PCB prototype enterprise and a High-Tech manufacturer specializing in quick PCB prototype and small batch PCB production. With over 12 years of experience in PCB manufacturing, has more than 400,000 customers, with over 10,000 online orders of PCB a day. Customer service is one of the best in the world, so feel free to upload your Gerber files for file review before completely submitting your order.
More About JLCPCB: support.jlcpcb.com/collection...
Components:
- 1x NE555 IC
- 3x White LEDs 3mm or 5mm
- 1x Green LED 3mm
- 3x 330Ω Resestors
- 2x 1KΩ Resistors
- 1x 100Ω Resistor
- 1x 10KΩ Trimmer/Potentiometer
- 1x 1N4148 Diode
- 1x 47uF@25V Electrolytic Capacitor
- 1x 10nF Polyester Capacitor
- PCB: (Ready for jlcpcb.com): bit.ly/2Y1lRcM
*Don't use my PCB for profit or sponsored videos.
If you add the external LED
- 1x 330Ω Resistor
- 1x LED 3mm or 5mm
This circuit must be powered with 9V DC, below I leave the references to view: the electronic circuit diagram, the PCB and the Gerber file to be uploaded directly on the JLCPCB website.
- PCB (Printed Circuit Board): 7:21 (FRONT) - 7:28 (BACK)
- Circuit Diagram: 7:35
- Gerber Files (Ready for jlcpcb.com): bit.ly/2Y1lRcM
*You can see the complete procedure to upload the Gerber file on jlcpcb in the video from 2:37
**JLCPCB have a Technical Support for exporting Gerber files from many software at this link: support.jlcpcb.com/category/2...
For any other questions you can ask me for explanations in the video comments:)
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WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals.
Music:
- Iron Man theme (Intro JLCPCB)
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#NE555 #Electronic #StrobeLight