Can someone explain this?
Thread Starter
Instructor
Joined: Mar 2014
Posts: 178
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From: RI
Can someone explain this?
I've seen some C7s in YouTube videos (usually at the dragstrip) looking like police cars with their rear tail lights flashing, and
said, "how did they do that"? Well, I just reviewed some security footage from my house showing me going up the street (in 1st gear), with MY tail lights blinking like a cop car. How did this happen???
said, "how did they do that"? Well, I just reviewed some security footage from my house showing me going up the street (in 1st gear), with MY tail lights blinking like a cop car. How did this happen???
Team Owner
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From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Video cameras pick up on this pulsing
Pro
Joined: Jul 2004
Posts: 681
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From: Columbus Indiana
Actually the LEDs do not glow continually, like a filament build. They use pulse width modulation, and turn on and off at high frequency. But the on/off cycle is so fast that it looks like it's lit continually. As the above poster pointed out, the video frame rate catches the LEDs in on/off cycles making them appear to flash.
Pro
Joined: Jul 2004
Posts: 681
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From: Columbus Indiana
Good explanation. Did not intend to double post. I was typing my reply when you posted.
Team Owner
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From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Le Mans Master
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From: Muscle Shoals, AL
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Has no one noticed the 666 in the OP's sig? Isn't it obvious?
He has demons in his taillights. Makes them flash like the flames of hell.
Fancy, smancy engineering explanations.
OK, I've got a petroleum engineering degree, 12 civil engineering licenses, and work as a software engineer. Yeah, the led video thing is right. But my hounds of hell explanation sounded better, right?
He has demons in his taillights. Makes them flash like the flames of hell.
Fancy, smancy engineering explanations.
OK, I've got a petroleum engineering degree, 12 civil engineering licenses, and work as a software engineer. Yeah, the led video thing is right. But my hounds of hell explanation sounded better, right?
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Team Owner
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From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Team Owner
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From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
Persistence_of_vision
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dont know if this is what youre asking, but i believe from some courses i took, that you put a capacitor in your circuit. these devices store energy up to a specified amount, then discharge, sending essentially a stream of electrons to the light and causing it to ignite. someone please correct me if im wrong.
