Re: N:Vision CFL's

[Marc_F_Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Sat, 24 Mar 2007 23:56:31 -0400, "Slammer" <mjinks@xxxxxxxxxxxxx> wrote in
message  <BI6dnW33uIJcb5jbnZ2dnUVZ_uqvnZ2d@xxxxxxxxxxxx>:

>"Marc_F_Hult" <MFHult@xxxxxxxxxxxxxxxxxxxxx> wrote in message
>news:lvla03hcvmcu0tj2bilcbp9hre2oki3rqq@xxxxxxxxxx
>> On Sat, 24 Mar 2007 13:28:02 GMT, nobody@xxxxxxxxxxxx (Dave Houston) wrote
>> in
>> message  <46062422.758879843@xxxxxxxxxxxxx>:
>>
>> I have found that the built-in electronics go wacky when the AC voltage to
>> them goes below a certain threshold when dimmed. There is hysteresis in
>> the effect. This occurs even with hard-wired,  20-amp dimmers with
>> toroidal chokes the size of donuts and with no X-10 anywhere in the house.
>>
>> ...Marc
>> Marc_F_Hult
>> www.ECOntrol.org
>
>"Hystersis" in the effect? Oh. please. Show me the equations.

No.

The hysteritic effect is that the lamps turn on at a higher voltage (rising
voltage) than they turn off at (lowering voltage).  The term is widely and
conventionally applied to this effect(eg) with analog comparators.

>"Toroidal chokes the size of doughnuts" in dimmers?

Yes. Each of the twelve toroidal chokes in the  Applied Electronics DP
12/2400 cabinets in my basement measure 3 inches in diameter and 1-1/2 inches
thick.

So in culinary techspeak, they are larger than a cake donut and  smaller than
a raised donut ;-)

http://www.appliednn.com/electrical/pdf/dp12-2400_man.pdf See figure four
which shows the size and location of the six pairs of inductors. )


They probably provide about 500usec rise time. That's not atypical for 2400
watt (20-amp) architectural dimmers. The active elements in the dimmers are
conventional 40-amp random-phase solid-state relays constructed using
back-to-back SCRs.

This lamp www.ECOntrol.org/GasElectricLamptGreygrnd.jpg contains four sockets
which are powered by a single channel of this dimmer panel.

I loaded it up with three different n:vision 60 watt CFls and one 60-watt
incandescent and dimmed and brightened the light using conventional phase
control.

>You mean rheostats.

No I do not. I mean exactly what I wrote.

>Or, do YOU know the difference?

You betcha.  And it is clear to me that you have no idea what you write
about.

... Marc
Marc_F_Hult
www.ECOntrol.org