[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

Re: Compact Fluorescent Noise

Subject: Re: Compact Fluorescent Noise
From: "Jeff Volp" <JeffVolp@xxxxxxx>
Date: Wed, 01 Nov 2006 19:12:29 GMT
Newsgroups: comp.home.automation
References: <cj32h.3177$Fi1.2190@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <FB32h.163702$QZ1.106429@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <4548cbd6.253352156@xxxxxxxxxxxxx> <Kb42h.163931$QZ1.78958@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <4549e865.260663484@xxxxxxxxxxxxx>

"Dave Houston" <nobody@xxxxxxxxxxxx> wrote in message
news:4549e865.260663484@xxxxxxxxxxxxxxxx
> "Jeff Volp" <JeffVolp@xxxxxxx> wrote:
>
> >What I think is happening is that the
> >high-frequency chopper in the CF bulb varies its frequency over each half
> >cycle, and it enters the X10/Insteon passband as the voltage approaches
> >zero.
>
> Why would it do that? It would seem to be more difficult to accomplish
than
> a steady frequency. Ort is the frequency of the chopper related in some
way
> to the sine wave?

The base of these bulbs is very small, so there isn't much room for an
electrolytic.  They might just rectify the line and feed it directly into
the chopper circuit.

Jeff

References:
- Compact Fluorescent Noise
  - From: Jeff Volp
- Re: Compact Fluorescent Noise
  - From: Jeff Volp
- Re: Compact Fluorescent Noise
  - From: Dave Houston
- Re: Compact Fluorescent Noise
  - From: Jeff Volp
- Re: Compact Fluorescent Noise
  - From: Dave Houston

Prev by Message: Re: Compact Fluorescent Noise
Next by Message: Re: Compact Fluorescent Noise
Previous by thread: Re: Compact Fluorescent Noise
Next by thread: Re: Compact Fluorescent Noise
Index(es):
- Message
- Thread

comp.home.automation Main Index | comp.home.automation Thread Index | comp.home.automation Home | Archives Home