On Friday, 25 November 2016 13:52:31 UTC, wrote:
On Thursday, November 24, 2016 at 1:01:11 PM UTC, tabbypurr wrote:
On Wednesday, 23 November 2016 13:42:32 UTC, wrote:


Trailing Edge, AKA Reverse Phase Control, RFC is a technical backwater , a patch for retro fit to cover early driver limitations.

cheaper rather than early

RPC dimmers are considerably more complax and costly than forward phase choppers.

cheaper lamps not cheaper dimmers

LEDs are best dimmed and driven at the driver.

Usually they're best dimmed wherever it's cheapest

Dimming seems usually considered in domestic installls as something of a luxury,

yup

cost isn`t a primary consideration.

Cost is why many more aren't sold. Cost is critical for most domestic goods. It's why there's so much difference between domestic & industrial versions of the same thing.


From article quoted "...adjustable minimum brightness..." isn`t something that`s needed when LEDs can be dimmed to near zero directly at driver.

Dimming the power, whatever way, to the driver will always have aminimum setting below which cannae go.

There are a few ways you can dim RC ballasted LEDs all the way to zero.

If you have one, there is a multi multi million pound market available,

Is there? I'm not convinced.

unfortunately you cannae change the laws of physics....

I just need to understand some basic electronics.


NT