The constant power part is throwing me. 2 qb288 and 1 xlg-240-h-ab to drive them. Individual heatsink for each board and a potentiometer for dimming. Series or parallel? Guessing parallel but how to limit voltage?
Thanks for the help
Xkg-240-h-ab and 2 qb288
Parallel Wired...jumby_growr wrote: ↑Tue Jun 08, 2021 2:32 amThe constant power part is throwing me. 2 qb288 and 1 xlg-240-h-ab to drive them. Individual heatsink for each board and a potentiometer for dimming. Series or parallel? Guessing parallel but how to limit voltage?
Thanks for the help
- The Driver’s internal circuits will automatically adjust the Voltage when the Vf is within the CC region, 27 - 56 Vdc.
- The Dimmer pot adjusts the Watts / Current and the Voltage output is automatically maintained.
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- LED-Curious
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So just plug and play? Hook the boards up in parallel and done?
Yes, for 240 Watt output...jumby_growr wrote: ↑Tue Jun 08, 2021 12:58 pmSo just plug and play? Hook the boards up in parallel and done?
The Io adj. internal pot can be set for 120 - 240 Watts max and the external dimmer pot can be manually adjusted from ~ 10 - 100%, 12 - 240 Watts respective of the Io internal pot (12 - 24 Watt min, respectively).
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- LED-Curious
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Got it. I appreciate it!