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Automation & Motion Control
Opto 22's LED Dimmer Connects to Serial Networks
1/29/2013

The new network LED Dimmer from Opto 22 uses pulse width modulation technology (PWM) to control brightness from 0-100 percent for 9-30 to control VDC constant voltage LED lighting assemblies such as lamps, bulbs, strips, ropes and bars. It can also be used for other resistive-type loads.   (Source: Opto 22)
The new network LED Dimmer from Opto 22 uses pulse width modulation technology (PWM) to control brightness from 0-100 percent for 9-30 to control VDC constant voltage LED lighting assemblies such as lamps, bulbs, strips, ropes and bars. It can also be used for other resistive-type loads.
(Source: Opto 22)

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naperlou
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Lots of work for dimming
naperlou   1/29/2013 10:16:15 AM
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Al, this is an interesting approach, and as you point out it is flexible and extensible.  One thing it does bring to light (pun intended) is that controlling LEDs is much more complex than the systems they replace.  On the other hand, with the electronics we have available now, it is not a problem to develop and integrate systems such as this.

Charles Murray
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Re: Lots of work for dimming
Charles Murray   1/29/2013 9:39:43 PM
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As you point out, Al, vehicle applications seem like a natural. I could see this being used in vehicle interiors. Do you happen to know if LED-based interior lights in vehicles use dimmers today?

apresher
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LED Dimmer
apresher   1/30/2013 3:30:17 PM
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Chuck, Don't know if dimmers are used at this point but it's easy to see that dimmer would be an advantage and unique feature for vehicles.

Charles Murray
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Re: LED Dimmer
Charles Murray   1/30/2013 6:19:31 PM
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In a lot of vehicles today, the interior lights dim as you prepare to drive, or when leave the vehicle and close the door. I do wonder if LEDs have been able to do that up tp now. This technology would be important for those applications, I would think.

Cabe Atwell
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Re: LED Dimmer
Cabe Atwell   2/1/2013 5:46:51 PM
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> 2013

> Serial connection

What works, works. From some current engineering students I know, serial is not a big focus at all. In fact, one of them had zero work with serial communication. Sad state of affairs indeed.

C

apresher
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Serial Networks
apresher   2/4/2013 2:13:48 PM
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Cabe, Very surprising that serial communications wouldn't be a topic that everyone would be exposed to.  But I guess it is simple enough that young engineers can get up-to-speed on their own if they need to

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