RE: Dimmers

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Jan Wagner <jwagner-at-cc.hut.fi> 


On Tue, 25 Nov 2003, Tesla list wrote:
 > Original poster: "Philip Brinkman" <peeceebee-at-mindspring-dot-com>
 >
 > O.K., You got me curious... I took apart my dimmer, it has a linear
 > variable resister... resistance lowers voltage, or so I learned in
 > electronics 101, this is how the volume control for your radio works, I
 > don't know what a triac dimmer is, I don't have an ossciliscope, to measure
 > wave form, all I know is it works perfectly on my neon sign transformer.

HowStuffWorks to the rescue!
   http://home.howstuffworks-dot-com/dimmer-switch.htm/printable

Includes a nice pic with the delayed turn-on i.e. the phase-angles.

cheers,
  - jfw

--
**************************************************
  high voltage at http://www.hut.fi/~jwagner/tesla
  jwagner-at-cc.hut.fi - Jan.Wagner-at-cern.ch
  Jan OH2GHR