Tuesday, January 13, 2004
disgronification of transmacular frobs
Why do you need a resistor with an LED? The short answer: to limit the current in the LED to a safe value.
The long answer: LEDs are semiconductors, diodes in particular. The current flowing in an LED is an exponential function of voltage across the LED. The important part about that for you is that a small change in voltage can produce a huge change in current. That is the most important concept of this article. Resistors aren't like that. The current and voltage in a resistor are linearly related. That means that a change in voltage will produce a proportional change in current. Current versus voltage is a straight line for a resistor, but not at all for an LED.
linear on 01.13.04 @ 02:02 PM CST [more..] [Karma: 0 (+/-)] [1 Comment]
Friday, November 14, 2003
linear on 11.14.03 @ 11:22 AM CST [more..] [Karma: -1 (+/-)] [2 Comments]
Thursday, October 2, 2003
Qu'est-que c'est? Accent aigu! Trés bien!
rené on 10.02.03 @ 05:14 PM CST [more..] [Karma: -1 (+/-)] [1 Comment]
Sunday, September 28, 2003
auto hyperlink in entry text?
http://www.singlemaltscotch.net/ is gonna r0x0r j00r s0x0rz
linear on 09.28.03 @ 03:58 PM CST [link] [Karma: 0 (+/-)] [No Comments]
Wednesday, September 24, 2003
more crude humor
linear on 09.24.03 @ 03:28 PM CST [link] [Karma: -1 (+/-)] [1 Comment]
here's a linkblank test: (it doesn't validate)
Alice on 09.24.03 @ 08:45 AM CST [link] [Karma: -1 (+/-)] [No Comments]
Tuesday, September 23, 2003
what's the domain? linear1.org
linear on 09.23.03 @ 03:26 PM CST [link] [Karma: 0 (+/-)] [3 Comments]
mood: reckless abandon
there's a wee bug in the archive date header bits. I don't think it was my bug either.
linear on 09.23.03 @ 09:29 AM CST [link] [Karma: 0 (+/-)] [13 Comments]
Monday, September 22, 2003
this entry is (formerly) closed
music: door closing symphony: Wolfgang Amadeus Fubar
mood: xenophobic with overtones of paranoia
linear on 09.22.03 @ 02:34 PM CST [link] [Karma: 0 (+/-)] [11 Comments]
linear on 09.22.03 @ 02:33 PM CST [more..] [Karma: 0 (+/-)] [No Comments]
Fake Link One
Fake Link Two
Fake Link Three
| || || || ||1||2||3|
template by linear