Led Display Sign | Electronic Project Circuits

Posts Tagged ‘led display sign’

LED Stroboscope

This circuit can be improved a bit by using a more stable STROBE RATE oscillator or by using a regulator to power the oscillator and associated logic. If you do this you should switch to 74HC class devices.

source: http://www.members.shaw.ca/novotill/LedStroboscope/index.htm

Be the first to comment - What do you think? Posted by admin - May 5, 2009 at 8:15 am

Categories: LED Flasher, Lighting Tags: led display sign, light security strobe, xenon low voltage lighting

Two LED flashing alternate Display using LM324

This be LED display circuit , that interesting. By it will wink to alternate between LED the red and LED the green. This circuit can work with IC LM324, by part of IC op-amp 4 pcs. number LM324 cheap build origin waves square circuit comes out 1 cycle per every second. For LED one by one resistors serial connection stays with LED one by that one be valuable differently, because of requirement Foreard voltage differently. If LED2 stick glowing bright , while again stick ,give enhance the value of R6 a little again. value expansion of R6 too much will go to decrease the brightness of LED2 down go to power supply can use 5V sizes or 6V.

Be the first to comment - What do you think? Posted by admin - March 7, 2009 at 7:36 am

Categories: LED Flasher, Lighting, Op-amp circuit Tags: flashing blinking, led display sign, LM324 led chaser

3V Lamp flasher High Current by LM3909

If you like to use the integrated circuit LM3909 build be Flasher Circuit. But may get into trouble about apply to Lamp at have the requirement Current tall no. I then introduce to see this circuit can apply to power supply 3V and apply to Lamp 3V 1A get. By use transistor help enlarge current tallly can go up for the rate something flasher of lamp can then poor Lamp stick bright can be unfinished. By the circuit uses the integrated circuit makes flasher get. By build transistor a kind NPN that durable Current 1A or tall more build stay the outside. This circuit can use to is Lamp warn at fine the frequency of something Flasher get. For use advertise or show the something. By lamp at have reflect large-sized stay within a darkroom will fine give wink with tall speed That will do see to is actor picture stops something K rumor can shake. Friends , may get circuit this idea goes to apply please sir.