Subject:
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Re: Need Electrical Help
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 26 Oct 2008 00:28:42 GMT
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Viewed:
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10996 times
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Rob Hendrix wrote:
> Great idea. I hadn't thought about whether Tom was going to use a variable
> speed control. I just assumed batteries for some reason. Have you had any
> brightness issues with the seemingly low 15mA output for multiple LEDs or
> are you hooking 1 to 2 LEDs max to this FET? To the human eye it would be
> hard to distinguish 7.5mA / 15mA unless they were beside each other.
As a crazy idea, use a MAX882/3/4 configured to output the required
voltage. It is a step-up regulator that will work with as little as 1.5
volts.
There are also PWM solutions.
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Message is in Reply To:
 | | Re: Need Electrical Help
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| (...) Great idea. I hadn't thought about whether Tom was going to use a variable speed control. I just assumed batteries for some reason. Have you had any brightness issues with the seemingly low 15mA output for multiple LEDs or are you hooking 1 to (...) (16 years ago, 24-Oct-08, to lugnet.trains)
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