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The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024

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Re: Re[2]: Ervan LED's again!!

To: <ukha_d@xxxxxxx>
Subject: Re: Re[2]: Ervan LED's again!!
From: "Ian Lowe" <ian@xxxxxxx>
Date: Sun, 23 Nov 2003 16:25:08 -0000
Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
References: <NFBBJEDBFKAGPBCHMIKAEEHMFAAA.dave@xxxxxxx> <016601c3b081$599a2590$4101a8c0@xxxxxxx> <156323634078.20031123130742@xxxxxxx> <002801c3b1db$954e0ba0$4101a8c0@xxxxxxx>
Reply-to: ukha_d@xxxxxxx

----- Original Message -----
From: "Ian Lowe" <ian@xxxxxxx>
> I drove them with a nice clean 5V supply through a 330 ohm resistor,
so
> I'm thinking 0.7v dropped across the led, 4.3 through the resistor,
> sticking it into ohm's law gives me 13mA, so I'm not even tickling the
LED.

and in typical fashion, this is wrong ;)

The forward voltage on these White Leds is about 2.4V, rather than the 07V
dropped across a simple signal diode...

and in that case, I'm only pushing 7mA (seven!!) though the LED..

These guys are gonna be INSANELY bright at full power!

References:
- Ervan LED's again!!
  - From: "Dave McLaughlin" <dave@xxxxxxx>
- Re: Ervan LED's again!!
  - From: "Ian Lowe" <ian@xxxxxxx>
- Re[2]: Ervan LED's again!!
  - From: Rob Heyes <mh001b4520@xxxxxxx>
- Re: Re[2]: Ervan LED's again!!
  - From: "Ian Lowe" <ian@xxxxxxx>

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