Constant Current Regulator
Constant Current Regulator
(OP)
I've recently purchased a Magnavox 15" LCD-TV {15MF400T/37} which requires 12 volt, 3.5 Amp, DC input.
I want to use this TV in my RV - on a Standard 12 volt, Deep Cycle, Vehicle Electrical System - where voltage can vary from 10 - 15 volts depending on the state of discharge or recharge, etc.
Will it be necessary to regulate the current input (to the TV) with a constant current regulator, and/or voltage regulator ??
Or can I just plug it Straight IN ??
Thanks,
turner7A8
PS- The TV came with a 120 V. AC to 12 V., DC, 4.16 AMP converter and there's no documentation regarding vehicle usage and Magnavox Support says there's no accessory for 12 volt DC to DC operation.
I want to use this TV in my RV - on a Standard 12 volt, Deep Cycle, Vehicle Electrical System - where voltage can vary from 10 - 15 volts depending on the state of discharge or recharge, etc.
Will it be necessary to regulate the current input (to the TV) with a constant current regulator, and/or voltage regulator ??
Or can I just plug it Straight IN ??
Thanks,
turner7A8
PS- The TV came with a 120 V. AC to 12 V., DC, 4.16 AMP converter and there's no documentation regarding vehicle usage and Magnavox Support says there's no accessory for 12 volt DC to DC operation.





RE: Constant Current Regulator
See if the OEM offers any optional straight-thru power cords for connection to a cirgarette lighter socket.
RE: Constant Current Regulator
A TV that is specified to run off 12 V DC will usually accept a wide voltage range. A low 9 or even 8 V is not a problem and the high voltage usually exceeds 12 V by a fair amount. So I see no problem connecting the TV directly to the car 12 V system. That is probably what it was designed for in the first place.
There are some precautions you can take. One of them is to unplug the TV when working on the car's electrical system. So called "load dumps" can do things to the device. But they only occur if you disconnect the battery while running the motor. Not very likely. So the risk is minimal.
VERY IMPORTANT! Check polarity TWICE before you connect! And make absolutely sure that you understand what the polarity shall be before you smoke test.
Gunnar Englund
www.gke.org
RE: Constant Current Regulator
I thought that 'load dump' meant when a major LOAD is DUMPed (turned off). I didn't think it was related to disconnecting the battery while the engine was running (unlikely in the extreme).
RE: Constant Current Regulator
RE: Constant Current Regulator
respectfully
RE: Constant Current Regulator
RE: Constant Current Regulator
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Constant Current Regulator
http://ww
RE: Constant Current Regulator
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Constant Current Regulator
RE: Constant Current Regulator
Usually products have a symbol on them now that shows tip+ or tip-.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com