@@SixOThree capacitor charges itself through battery, and transistor consumes capacitor's energy and convert the electrical signal to turn on the led, as much long power is hold by capacitor, led will be "On", once capacitor is fully discharged led turns "off" and capacitor charges itself again, and the cycle continous to infinity, that's what we call "blinking of led" the purpose of resistor is to glow led without burning it
Someone has probably already answered this I'm sure, but isn't this avalanche pulse generation? The transistor rapidly conducts current when the voltage across the capacitor reaches the collector-emitter avalanche voltage. I thought the capacitor in an avalanche pulse generator had to be small to keep the energy from causing the PN junction to fail? Does this having the emitter connected to the positive plate, instead of the collector, have something to do with keeping that from happening?
Wow , you are very generous giving us all those informations (meaning all your projects).For an 50 W (maximum) led outside projector with sensor, what modification should I do?Thanks.
This 'negative resistance' oscillator uses the transistor's emitter to base in breakdown mode, which is to be avoided because it degrades the transistor. This circuit is never used in any mass produced equipment because the transistors are not tested and were not designed to be used in breakdown mode. It must be avoided to prevent damage.
@Acme Fixer: I don't think so. Assuming the LED chokes 2V, then breakdown voltage of the transistor is max 10V, so max current thru C-E is 70mA (limited by 150R resistor), not enough to kill the transistor.
I had already contructed the circuit with VRs too instead of Resistors to observe the blinking effect and is working fine but very strange fact I could notice but couldn't find the exact logical reason behind the issue. When I use ordinary BC547 the circuit works fine but I used the same transistor from leading manufacturers the circuit even didn't start and each and everytime same result obtained. Can anybody let me know the reason??? Thanks in advance.
Let me try to explain how it works. By RC = t, 3.3k resistor and 100u cap forms a time constant around 0.33s. When the cap just be charged, voltage of cap is lower than the acceptable reverse voltage of the VCE of the transistor. CE of transistor keeps open circuit then LED is off. However, once the cap voltage reaches over VCE, transistor becomes short circuit. It turns on the LED and also discharge the cap at the same time to complete one cycle operation. However, this circuit just works in high power supply voltage and the transistor may be damaged after a long time operation. To make this circuit more reliable, the transistor can be replaced by a zener diode, then using a NPN transistor which drives from the net between zener and LED to discharge the cap.
' that nice idea... can do that work with 6 volts batterys... dont need 12 volts... what size of LED 3mm or 5mm... what BC547 to do with middle pin between C and E
Us Motorcycle guys need help with these. Can you use the clear LED and focus it with a lens so we can put this on the front of our bikes for visability.
That's a nice simple timer circuit. Let's see it on a little circuit board instead of this "mid-air" style of construction. It's kind of cute, but if I'm mounting three of these to my RC plane, I'm looking for stable mounting, not a floppy gob of parts. Or do you pot it in RTV for rigidity?
I tried this circuit on bread board. Didn't work. Checked connections again and again. What could be the problem? FYI i am applying 3.4 V instead of 12 as mentioned in the diagram / video
Thanks for the Video. I wonder how the circuit works when no power is on the Base of the transistor,so the citcuit between C and E is open permanently.. can you help me understand? Greetings
actually the circuit abuses the negative resistance factor in all transistor to produce the blinking effect. Here a common NPN transistor is used. When Switched On the 3.3K resistor charges the 100uf capacitor until the voltage become high enough to get emitter-base junction to avalanche. At this moment the transistor turned on quickly and the capacitor discharged by led through 150ohm resistor, and when voltage across the leads fall, the current stops, then the capacitor again starts to charge through 3.3k resistor. Thank you
Thank you for the video. I am nubie in electronics, I tried and did like what you showed, but it worked only if I touch the led's plus pin with one of the multimeter needle. May I ask what seem to be the problem?
Check the soldering if you do not have much experience in soldering .Erratic behaviour of the circuit is possible in case of wrong or loose connection.
It didn't work in tinkercad circuit design, can someone help? I'm new to Transistor circuits and I used a PNP transistor and copied the exact circuit. The LED anode is attached to the emitter of the transistor. Anyone have advice.
I have all the parts and hooked up. No strobe effect. Followed instructions as indicated on your TH-cam video. Please advice as to what I'm doing wrong. Very much like to have a few of these to light up my model StarTrek Starships. Thanks for your time, Jim.
I think that 12V supply charging the 16V capacitor and when it discharge the bulb is blinking. but durring charging there's no current flow through bulb because of resisters.
Would your circuit work with a super bright white LED? I want something that can be seen in sunlight to light up a drone in the sky. Is it do-able? Thanks.
This will work perfectly on my Airplane ✈️ models. Can you please show me how to make the same thing but a double strobe ? Shown on the ends of the wings of a 747-8 Jumbo.
This guy is making real things,and he even answers to questions to explain his projects.for that reason.I subscribe.
Thanks very much
Where is his explanation on how this works?
@@SixOThree In the circuit diagram.
@@SixOThree capacitor charges itself through battery, and transistor consumes capacitor's energy and convert the electrical signal to turn on the led, as much long power is hold by capacitor, led will be "On", once capacitor is fully discharged led turns "off" and capacitor charges itself again, and the cycle continous to infinity, that's what we call "blinking of led" the purpose of resistor is to glow led without burning it
Is it possible using three or two light?
If I gonna use this in a 2v led strip what value of capacitor and resistor will I use?
your presentation skills are getting better. nice little project.
Someone has probably already answered this I'm sure, but isn't this avalanche pulse generation? The transistor rapidly conducts current when the voltage across the capacitor reaches the collector-emitter avalanche voltage. I thought the capacitor in an avalanche pulse generator had to be small to keep the energy from causing the PN junction to fail? Does this having the emitter connected to the positive plate, instead of the collector, have something to do with keeping that from happening?
I love the ideas and I really like it! Simpoe and easy! Thank you.
But, is there a way to power on in 3v-3.7v battery? What changes will be needed?
That looks great! Excellent strobing effect! 🚨👍🏼
All these fun little projects on youtube make me want to invest in some tools lots of tools
Oscilador por saturación a ruptura o vavalancha, ¿es cierto? Buen video, gracias.
Its fantastic! Many thanks!
Wow , you are very generous giving us all those informations (meaning all your projects).For an 50 W (maximum) led outside projector with sensor, what modification should I do?Thanks.
This 'negative resistance' oscillator uses the transistor's emitter to base in breakdown mode, which is to be avoided because it degrades the transistor. This circuit is never used in any mass produced equipment because the transistors are not tested and were not designed to be used in breakdown mode. It must be avoided to prevent damage.
@Acme Fixer: I don't think so. Assuming the LED chokes 2V, then breakdown voltage of the transistor is max 10V, so max current thru C-E is 70mA (limited by 150R resistor), not enough to kill the transistor.
03:05 I would suggest a 1N4007 in series with the 3K3 Ohm resistor sothat )I electrolytic capacitors could be safety used.
hi. I need this strobe light but powered by a 2s lipo, 8,4 v fully charged. It will work?
Thanks
COOL . SIMPLE E MUITO BEM EXPLICADO E MONTADO . PARABÉNS . VALEU
Great, is it what I was looking for, how many LEDs can be connected to this system? How many volts does it work with?
Kya ispe 2 led chalegi ek saath ??
Can i use it for 9v ?. and im gonna add 3 LED's at the same time , it will work ?.
Hola, ¿ Se puede hacer con una fuente de 5 voltios?, ¿que resistencias necesitaría?
I had already contructed the circuit with VRs too instead of Resistors to observe the blinking effect and is working fine but very strange fact I could notice but couldn't find the exact logical reason behind the issue. When I use ordinary BC547 the circuit works fine but I used the same transistor from leading manufacturers the circuit even didn't start and each and everytime same result obtained.
Can anybody let me know the reason???
Thanks in advance.
What does a resistor doing in the circuit ? I know it resist the current. But how is it helping the circuit ? i really wanna know
I really like your ideas. How to do a circuit like this with 15 reds LED and 12v supply? Thanks
Not possible
Let me try to explain how it works. By RC = t, 3.3k resistor and 100u cap forms a time constant around 0.33s. When the cap just be charged, voltage of cap is lower than the acceptable reverse voltage of the VCE of the transistor. CE of transistor keeps open circuit then LED is off. However, once the cap voltage reaches over VCE, transistor becomes short circuit. It turns on the LED and also discharge the cap at the same time to complete one cycle operation. However, this circuit just works in high power supply voltage and the transistor may be damaged after a long time operation. To make this circuit more reliable, the transistor can be replaced by a zener diode, then using a NPN transistor which drives from the net between zener and LED to discharge the cap.
I agree with the zener diode. the transistor isn't doing much other than acting like a diode. base isn't being used switch it on/off.
That's what I looking for :D explained very well and without this shitty music. Thanks [°√•]
Do you have a schematic of that? Thanks!
'
that nice idea...
can do that work with 6 volts batterys...
dont need 12 volts...
what size of LED 3mm or 5mm...
what BC547 to do with middle pin between C and E
Us Motorcycle guys need help with these. Can you use the clear LED and focus it with a lens so we can put this on the front of our bikes for visability.
12v light use kr skte hai....
Changing the value of the capacitor alters the time constant increasing or decreasing the rate of flash.
What if I want to have a super bright strobe? Can you do a video on that?
How to increase / decrease the time between two flashes?
Ideal para la moto y chau relé gracias por el vídeo.
Good content bro, love from kerala
ഹായ് 🤪
What are the materials? is it easy to do?
What is the resistor values for Red, Yellow, Blue and White LED's?
Avalanche breakdown.
Nice illustration.
sir pls explain how its avalanche breakdown
Bloody fantastic thanks
Thank you so much, it's thanks to you that I did what I wanted
how does it works? without triggering base?
A very nice work. I have a question! Can we burn more than one led diode with this circuit or a different circuit? Thanks.
If same question how many led can be added to this circuit?
How many LEDs do you support?
Im using 12v led what is the resistor ohm should u use
What are the specs on the LED? 5V? 12V? How many mA?
good evening you liked the green led. great videos happy New Year
Must be tray to make this ideas. Love it 👍 and Thank You 🙏
Nice video! Can you explain how transistor switchs on and off without variation of potential on its gate?
Good job, any simple project for pulsing led ?, thx
Can i use 12v led smd instead of single led 3v
Working fine... someone please explain why the base terminal is not connected to the external circuit.
I want to make the same scheme but voltage 24 V. Dc What needs to change
Hi can you please help to make a Butter Churner using bidirectional motor?
how many leds can be used in this circuit?
superb tutorial..thanks a lot.
What changes need if we want to add 50 led
For 5 v supply resistance used?
Its not working bro... Why?
BC 547, 120Ohm resister, 470uf capacitor
Any problem of changing Supply volt...
Can use 3.7v, 7v, 9v, is it work correctly...?
Plzzz rplyy
Great job brother. .
can we add 4 other LEDs to this?
That's a nice simple timer circuit. Let's see it on a little circuit board instead of this "mid-air" style of construction. It's kind of cute, but if I'm mounting three of these to my RC plane, I'm looking for stable mounting, not a floppy gob of parts. Or do you pot it in RTV for rigidity?
Are you saying that you have the ability to build an RC plane, but you can't figure out how to stabilize a few electronic components?
Perhaps we could skip making music videos and actually explain stuff by talking?
English may not be his first language.
No need for the talking but no music I agree on.
Then get assistance from someone who is a native English speaker. The vast majority of people watching youtube speak English.
I agree
@@erbenton07 r u fu....in' nuts?
spanish is , actually😝😛😝😛
go get a forest and get lost ! 😁😁😂😂
Total cost kitni padegi bro if i use 3 watt led bulb
I tried this circuit on bread board. Didn't work.
Checked connections again and again.
What could be the problem?
FYI i am applying 3.4 V instead of 12 as mentioned in the diagram / video
just for one LED?
Thanks for the Video. I wonder how the circuit works when no power is on the Base of the transistor,so the citcuit between C and E is open permanently.. can you help me understand? Greetings
actually the circuit abuses the negative resistance factor in all transistor to produce the blinking effect. Here a common NPN transistor is used. When Switched On the 3.3K resistor charges the 100uf capacitor until the voltage become high enough to get emitter-base junction to avalanche. At this moment the transistor turned on quickly and the capacitor discharged by led through 150ohm resistor, and when voltage across the leads fall, the current stops, then the capacitor again starts to charge through 3.3k resistor.
Thank you
@@TechIdeasAG Thank you very much:-) that helped me :-)
4 led lagau to support kr jye gaa?
Thank you for the video.
I am nubie in electronics, I tried and did like what you showed, but it worked only if I touch the led's plus pin with one of the multimeter needle. May I ask what seem to be the problem?
Check the soldering if you do not have much experience in soldering .Erratic behaviour of the circuit is possible in case of wrong or loose connection.
@@chetananam475 ok. Will try again from start. Thank you.
Hey how can I blink my 220f tail lamp like the same way, can I use the same circuit directly to a12 volt dc battery of my bike..?🤔
Use realy
This led strobe can connect to bike?
Can we connect it on motorcycle???
Did it work for 12volts led?
Sir please ask first background sound name
What are the requirements for 24v dc pls comment
How do i make it strobe once every minute?
Can we use it for motorcycle
dusra resistor kitna capacity ka hai
Wair can I by stuff make my own strod leds?
It didn't work in tinkercad circuit design, can someone help? I'm new to Transistor circuits and I used a PNP transistor and copied the exact circuit. The LED anode is attached to the emitter of the transistor. Anyone have advice.
Awesome idea
I have all the parts and hooked up. No strobe effect. Followed instructions as indicated on your TH-cam video. Please advice as to what I'm doing wrong. Very much like to have a few of these to light up my model StarTrek Starships. Thanks for your time, Jim.
Ok, you've done alright, now just increase the input voltage to about 13.5 to 14 volt.
I figured another way. Put the 150 ohm in place of the 3.3k. Then removed the 150 ohm and put a 75k in it's place to run off of 12v.
Is it work on 3.7 v battery?
can use 4.2v battery?
Thanks! I subscribed
What kind of 12v battery can be used
Very simple and nice
Sir can use bc 548 resistance..
..can we do this circuit at 5vDC ?
this reansistor on video is PNP ?
saved it for watch later bro nice!
Can i operate at 230v ac with 100k resistance
How to use 12v LED..?
How can I make the blinking slower?
how much amp on 12 volt/ mine not working
,..
अगर 10 10 led लगाना होतो कैसे ऑपरेट होगा और क्या क्या वॉल्यू होगी कंपोनेंटस की
Can it run in 3.7V (Li-Ion Battery)?
I think that 12V supply charging the 16V capacitor and when it discharge the bulb is blinking. but durring charging there's no current flow through bulb because of resisters.
hi did you use a normal led diode at 2.5 or 3 volts or 12v
Can i use led strips at 12v?
12v led wouldn't work
how can I make one for 5 V input ?
Would your circuit work with a super bright white LED? I want something that can be seen in sunlight to light up a drone in the sky. Is it do-able?
Thanks.
Nope, it will not work in your condition
@@TechIdeasAG Thanks.
Hocam bu devreye otomobildeki 12 volt bağlarsak olurmu veya sonuç ne olur
How can i connect this to bike battery..
Can we use 2229 transistor?
This will work perfectly on my Airplane ✈️ models.
Can you please show me how to make the same thing but a double strobe ? Shown on the ends of the wings of a 747-8 Jumbo.
parabéns + 1 escrito like