'Float' voltage under varying DC loads
This post is an observation, and observation which bucks the 'this wors like this, and that works like that' mentality which pervades online forums. Empiracle data trumping theory. I can spin a di...
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That alternator draws about five amperes of field current. Most of Frank's regs slumped <.05 from 1% to 99% field draw.
You have one sense lead connected to the highest possible circuit voltage potential the second connected to in intermediate bias sense point. There will be a differential. Temporarily connect a bridge of 10AWG from alternator output stud and battery + and see this differential radically decrease. Disconnect from battery and connect to ignition 2 circuit and see a base voltage increase. Of course this is just playing around. To answer your question.
There isn't a need for ultra-precise voltage regulation for load. Merely to have a meter agree with voltage seen at the battery.
Ah the days when Oropeza was around -- call Orlando and a fresh product would appear. The 911 regulators used laser cut voltage divider networks. I saw many units with a .01 max slump. I have a pair of one of his last works, a Delco SI series of "one-wire" regulator that excites at 40-70 alternator RPM, 100-amp MOSFET and FET driver. Laser cut voltage divider. No more. The exotics stopped being produced. Sad.
Even the Megawatt and the Meanwell power supplies have load droop. My 10 amp 60 volt and my Lambda adjustable power supplies have zero droop. Such is life.
You have one sense lead connected to the highest possible circuit voltage potential the second connected to in intermediate bias sense point. There will be a differential. Temporarily connect a bridge of 10AWG from alternator output stud and battery + and see this differential radically decrease. Disconnect from battery and connect to ignition 2 circuit and see a base voltage increase. Of course this is just playing around. To answer your question.
There isn't a need for ultra-precise voltage regulation for load. Merely to have a meter agree with voltage seen at the battery.
Ah the days when Oropeza was around -- call Orlando and a fresh product would appear. The 911 regulators used laser cut voltage divider networks. I saw many units with a .01 max slump. I have a pair of one of his last works, a Delco SI series of "one-wire" regulator that excites at 40-70 alternator RPM, 100-amp MOSFET and FET driver. Laser cut voltage divider. No more. The exotics stopped being produced. Sad.
Even the Megawatt and the Meanwell power supplies have load droop. My 10 amp 60 volt and my Lambda adjustable power supplies have zero droop. Such is life.
