Hello, This forum looks like a great place.. I hope I can get some help. I have been reading alot but hoping some experts can chime in.
I have an "intelligent lighting fixture".. Ie. A robot with a lamp.. known as a "HES Trackspot" Used in nightclubs. The fixture is from 1992 with a simple macro size PCB. I am attempting to convert this unit to use high current energy efficient LED for less power and brighter colors. The issues I cannot resolve are
1) Fixture uses SCR for dimming, LED's mostly use PWM
2) Output voltage for lamp is 24VAC @ 250W, Input voltage for LED's is DC
So basically im trying to install this LED
http://www.luminus.com/products/CBM-360.html
This is the schematic for the old Fixture (Note page 14 shows the dimming circuit)
https://www.highend.com/pub/products/automated_luminaires/Trackspot/Schematic/Tspotr15.pdf
http://www.greatneckgames.com/images/audio-visual-lighting/large/trackspot.jpg (PIC)
So im guessing I need a constant voltage for the LED, an LED IC Driver for the dimming/power and some way to marry the information from the SCR circuit to the IC Driver.. all while using the Switching, Dimming of the original fixture. The original bulb was 250 Watt halogen and I believe the dimming for the bulb terminates with a decreased voltage to the bulb.
Hope this makes any sense!
I have an "intelligent lighting fixture".. Ie. A robot with a lamp.. known as a "HES Trackspot" Used in nightclubs. The fixture is from 1992 with a simple macro size PCB. I am attempting to convert this unit to use high current energy efficient LED for less power and brighter colors. The issues I cannot resolve are
1) Fixture uses SCR for dimming, LED's mostly use PWM
2) Output voltage for lamp is 24VAC @ 250W, Input voltage for LED's is DC
So basically im trying to install this LED
http://www.luminus.com/products/CBM-360.html
This is the schematic for the old Fixture (Note page 14 shows the dimming circuit)
https://www.highend.com/pub/products/automated_luminaires/Trackspot/Schematic/Tspotr15.pdf
http://www.greatneckgames.com/images/audio-visual-lighting/large/trackspot.jpg (PIC)
So im guessing I need a constant voltage for the LED, an LED IC Driver for the dimming/power and some way to marry the information from the SCR circuit to the IC Driver.. all while using the Switching, Dimming of the original fixture. The original bulb was 250 Watt halogen and I believe the dimming for the bulb terminates with a decreased voltage to the bulb.
Hope this makes any sense!