LED Driver 101
ฝัง
- เผยแพร่เมื่อ 26 เม.ย. 2015
- Welcome to the first episode of Driver ED - a TH-cam channel from Applied Concepts, Inc. (ACI) detailing technical and practical concepts related to LED Drivers and LCD Backlighting. In our first Episode, LED Driver 101, we cover the fundamental principles behind our I-Drive product line and how the most efficient ways to drive LEDs.
Stay tuned for future videos covering our entire line of LED Drivers, Modified High-Bright & NVIS LED Displays, CCFL Inverters, and other products we manufacture. We will discuss how to integrate our products, troubleshooting, as well as other interesting topics and technologies related to LEDs and specifically LED Backlighting.
Please subscribe to our channel, let us know what you think of our videos, and suggest future topics you would like us to cover. You can also visit us online at www.acipower.com - วิทยาศาสตร์และเทคโนโลยี
I'm coming from the laser hobbyists camp...if your driver isn't employed at all(direct current ungoverned or regulated) or is set at the wrong current your laser diode will blow. Love how you showed that at first you had to over come the initial leds forward voltage to get it to glow then showed the very small window it operates in and how the current flow increased.
"Driver Ed"
Love it. Awesome video, thanks!
Very straightforward, easy to understand, and helpful thanks!
Excellent video, the display with the meters made it very clear
great video! you explained it great! Looking forward to seeing more videos from you.
Thank you. That's a good lesson and you've got good teaching skills.
instablaster...
Good video! A question is: how does a 12v LED driver IC produce a 120v forward voltage (Vf in the video ) for the LED string? I know there are some boost thecnologies, but 12v -> 120v seems a very high boost.
Hello Sir, please consider wearing a lapel mic to avoid room echo, and to increase clarity. Thank you!
Great video!!! Very informative.
is pablo escobar discovering different carreer options?
😭
I came across a phenomena, I found tree dumped led lights, inside, a separate driver, the led lamps are connected in series and parallel, the burnt diodes though were located, on each parallel line and one higher than the other on the series line and on separateparallel line as if indicatingthe high voltage path, amazing! Is this because a surge is a separate voltage frequency! Why didn't the first sets of diodes burn on either end instead, or all diodes?
Hopefully other videos will be more thorough than this one. Do you need a specific driver for each output voltage? 12 V in...but 120 v out....What if you needed 100 out?
Thanks that was good start !!
Excellent. Thanks
Hello I need help for led driver,
my current Kitchen chandelier led driver is bad and need to replace with new one, the configuration of bad one is:
Input AC 90-265V 50/60Hz
Output: 83-120VDC, current 260mA (Constant)
Power: 25-36X1W
The new one I got in the market:
Input: AC85-277V 50/60Hz
Output: Voltage 60-120VDC, Current 300mA (Constant)
Power 20-36 W Watt
Can you tell me should I use new led driver (which is 40mA more) in my Kitchen led chandelier. Your advice will be highly appreciated.
Thanks
Great video
Thankz
thank you very nice .
Good quality educational Video, Get excited to learn more, but Unfortunately it only one video in the channel
We are working on more content as we speak!
First and only video???? What happened?
👍👍👍
i liked this...shame u didn't continue
Is there a negative consequence if my LEDs are 2.5m away from the LED Driver?
to begin with, im not an electrician, just a humble and passionate enthusiast;
the negative consequence of a longer distance is a higher resistance that must be overcome. Your voltage is going to have to go upwards in order to keep your amperage low. Look into ohm's law. E=IxR or Voltage = Amps x Resistance in english. So, truly, its all going to depend on your specific set of numbers. Nevertheless, I don't think 2.5m is long enough to dramatically increase the resistance of your circuit albeit you are using the proper size wiring.
Best Wishes, some guy from youtube.
So if I have a DC 5V 60A 300W PSU and two strips of LEDs (WS2812B ) 5V would this blow my lights?
Darren Hedlund
You would have to go with the manufacturer recommended voltages for the led strips. There's usually a voltage range ( upper and lower voltages ). So if 5 volts is near the middle of this range your ok. If it's near the high end or over the top of the range, it'll burn out faster or right away if way over. If 5 volts is on the low end your ok. Lasts longer and more efficient. Hope it helps
no, but if no resistor then leds draw maximum amp (led forward currrent) and will die due to overheat
I am confused. You say for example, Vftot = 120V. How can that be when your input Vi = 12V?
12V is to power the driver, the driver will transform that into the appropriate requirement which is 120V in the example.
where is the 100 or before 101 video?
Regulates on current and not fixed voltages
A worthy whiteboard chat....thumbs up...and all that.
However..
*[cue thunder sound effect]
...at about one minute into the lesson, you speak of impedance...
Impedance is AC phenomena, taking into account resistance and reactance
resulting from being driven from an AC source. Your whiteboard examples are
being driven from DC sources...only RESISTANCE is in play here.
As this is scripted as a tutorial in LED basics, which are DC beasts, keeping
confusion to the new bees to a minimum is a good thing. Resistance and reactance
are not interchangeable terms.
Dictionary: "impedance: the effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance." So, if we ignore parasitic inductance or capacitance of the LED, it's impedance ~= resistance, albeit non-linear.
I am confused. this is not 101 lol
For some reason I find that the most informative videos have the worst ratings.
It's just bad design to put LEDs in series. If one of them goes bad, the whole string is out. That is why we use LEDs in parallel, at lower voltage, not 120V!
All would burn during a surge, not while in series. Best option, sets in series and parallel may be categorised to "the survival era"; a bonus had the drivers a manual var-resistor after a fast modification, just in case!
No
LED LIGHTS IS and BECOME a VERY, VERY DENGEROUS for drivers, many people going to have car accident from LED light blinding.
The LED Drivers discussed in this video are for LCD panels similar to your television! The new LED headlights in cars are quite bright though!
It doesn't matter what they are called, i work nights as a driver and witness how many people ARE SO disrespectful ignorant and drive with high beams.
I'm sorry but this is very. very dangerous.
Compared to last year, accidents have tripled.