Question RE the HD45 converter.

[Led_Blind]

Hi all,

I have a LuxV HD45 and was wondering wether the converter will fry a Seul. I understand the Vf differences between the 2.

My thinking goes that if the circut is current regulated then the Vf will be set by the led. Is this right?

 

[dat2zip]

For the LuxV configuration there is a step up converter to boost the battery voltage to 7-8V needed to drive the LuxV.

For a Seoul you will need a step down converter in place of the step up converter. Putting a Seoul in place of the LuxV will most likely fry the LED or converter.

LuxV uses a NewBB boost converter.

Lux3 configuraitons used the DBx2.

Wayne

 

[Led_Blind]

Cheers Wane, Looks like it will be left as is untill Lumileds comes out with their next gen Lux V's

As a point of interest, have you experimented with the Seul leds in the HD45 and how does it go.

Chris

 

[CM]

Been looking at that HD45 Lux III on the shop for a while now with an eye towards a Seoul P4 transplant.

Wayne, how efficient is the DBx2? I notice it says that it will run off 2x123. Does this use a similar setup as the Downboy but with two stage or is this converter of a more efficient synchronous switcher design?