Question about Office Equipment & Supplies
I have a moorized projector screen - elite screen "silver max 92h" - And projector - epson powerlite- that I built a lift for using a firgelli linear actuator. The screen is a 12v dc motor and has an up/down/stop switch that connects to 110v outlet power (and I think uses 60hz resistance) The projector says "100-200V, 50/60 Hz, 3.2-1.4A" Linear actuator just has 2 wires coming out of it (thought it would come with a switch but it doesn't) and is 12VDC. With no limiter it will stop at full up and ful down positions which is perfect for my lift. My question here (if you've made it this far haha) is how do I possibly connect all of them to one switch that drops the screen, drops the projector (by powering the actuator) and also turn on the projector (and adversely will power down the projector and pull up the projector and screen by reversing polarity in the actuator and screen motor)? Hope that's not too confusing and thanks for any help you can provide I don't know much about this sort of thing. Also one idea I had was to tap the actuator into the line heading from the switch to the screen motor, they are both 12VDC so my hope is that the one switch would then lower them both, bur I don't know if that would work? Then I'd have to just figure out the projector power? HELP! Haha or at least let me know I I'm on the right track. Thanks a lot!! -MJ
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Posted on Jan 02, 2017
SOURCE: USING 1 CHANNEL
I can't find any documentation for your amp; it was made when Jensen was owned by Recoton, and they're no longer in business. With any 4-channel amp, you can't bridge all four channels into a single channel. What you can do, if you're connecting it to a single sub, is to bridge two of the channels into one channel and leave the other two channels unused. It doesn't usually matter which two channels you pick, but some 4-channel amps designate channels 3 and 4 (or rear channels) for the subwoofer. Whichever ones you use should have a "LPF" or "LP" crossover setting available.
Posted on Jul 01, 2007
what you are doing is over **** for 300 mA, now if you will pulling some real wattage then you would need linear regulation.
just use a 10.00 ac adapter . or a zener diode .
the calculations in real time analysis is complex GE has the formula online . but a spike at 300ma will be assorbed by the transformer easilly. if you are protecting delicate circuit then a fuse will not work quickly enough , fry and blow is all they do.
a crowbar circuit is what most designers use nowdays.fast and efficient.
There are plenty of IC regulators on the market that will give these specs but I think your are over thinking your needs unless you have an exact spec for medical research.
Posted on Mar 09, 2008
Yes it could, but... but it also depends on your antenna, what antenna are you using. Do not upgrade the power of your radio unless you know your antenna can handle the output power.
Posted on Oct 13, 2008
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