Subject:
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Re: GP2D12 IR sensor RCX active sensor interface?
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 9 Oct 2001 19:35:43 GMT
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Viewed:
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1926 times
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In lugnet.robotics.rcx, Gareth Bestor writes:
> FYI - I just noticed in the component specs from Sharp that the GP2D12
> (and GP2D15 for that matter) have a built-in voltage regulator.
> See
> http://www.sharp.co.jp/ecg/opto/products/pdf/optical_sd/optical_sd/gp2d12.pdf
>
> So is an external regulator a necessary precaution? Just curious...
>
> - Gareth
Hi Gareth,
maybe you don't need an external regulator ?!?!
But, the specs also say that rating of supply voltage is "-0.3 to +7V".
Do you know what happens to the sharp if supply voltage rises above +7V ???
(the mux has a supply voltage of +9V for example)
Check it out and let us know at which voltage you fried your sharp.
(just kidding)
I prefer adding a voltage regulator i know the specs of.
BTW there must be a reason for recommending an operating supply voltage of
4.5V to 5.5V i guess.
Regards,
Rainer
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Message has 1 Reply:
 | | Re: GP2D12 IR sensor RCX active sensor interface?
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| Hi all, It seems I missed this thread... (...) As suggested by Rainer, if you use an external battery everything is much simpler, you could even use a 4.5V battery to avoid regulator. (...) I don't think you can improve this circuit with a simple (...) (23 years ago, 10-Oct-01, to lugnet.robotics.rcx)
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