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I don't expect any problems with this regulator. The HexFET is rated at 64 amps, with an on-state resistance of 0.016 ohm maximum, and the Schottky diodes in the rectifier section are rated at 30 amps. The fuse will blow long before the regulator is damaged. Permanent magnet alternators don't...

No, it's a shunt design with a HexFET, which is a type of MOSFET. It's not always a good idea to go with a pass type regulator with a permanent magnet alternator, because when the circuit is opened, the stator can see voltages higher than it was designed for. If it's suddenly and repeatedly...

The 24VDC regulators are now available. I put a lot of time and effort into getting good temperature compensation, and am happy with the way it turned out. The set voltage now follows what lead-acid batteries want to see, with the charge voltage being higher in cold weather and lower in hot...

I thought I was done, but the temperature compensation came out a bit differently from my 12V version, so I'm going to change a couple things. I hope to have it ready by the end of the week.

Yes, I do plan to do that. It should be only a few days.

Yes, I have one in my own 003A and a member here has a Beta unit in his 002A. We're getting quite a few hours on them between the two of us, running both with and without a battery connected, and they're working as planned. I have parts for two more, and will put them together shortly. Parts...

Sure, thanks for asking.

Thanks Ike. Like I always say though, put the new one in service and take advantage of the 2-year warranty. Keep the original for the spare.

Ha, it would be a drop-in job if the wires didn't have to be soldered to the fuse holder. I put a couple bullet connectors on mine so I can change them quickly when testing. Here are a couple photos:

I got a test version of the 24V regulator in my 003A today and it works well. While the generator was running, I disconnected the battery and let it run for around 1/2 an hour. Everything continued to work normally, and the AC ripple was only about 65 millivolts RMS, thanks to the big...

I won't be able to match that price, so I'm not sure I could add anything to the situation other than a warranty. Why do threads make it harder to install? Is it easier to use through bolts?

Crawdaddy, I'd very much appreciate it if you could send it here. I'll pay the postage, of course. I'll PM you my address. I don't need to unpot the electronics, but I do need the unit to get dimensions and bolt pattern. Is the unit exactly the same for the 016B and 701A?

I had not, but only because I don't have a 701A here. Do you know the rated output current from the alternator? If so, I'd need a failed regulator so I can design a drop-in replacement that mounts and connects like the original.

Yes, the HexFET I use is a variety of MOSFET. I find its main advantage is very low voltage drop, like a couple tenths of a volt. This leaves a little more for the battery, but more importantly it doesn't make much heat.

OK, that got me laughing, thanks. Price is a always a big concern of mine. The trouble of course, is that as far as products go, the demand for the things I make is very small, so there is no sending it to China to get them made for $25, for example. I make everything myself, with office...

No plans for a super capacitor that at this time. The capacitor I'll use will be an electrolytic that's big enough to filter the output of the diode bridge so that the control system is happy if the battery gets disconnected. I'm not sure what type of polypropylene capacitor you're referring to.

Or make the regulator with that in mind. Funny you should mention motorcycle regulators. Here's one I make: http://www.lakeserv.net/kaw/regulator/index.html

Good information, thank you. That sounds like every small capacitor across the 24V system was effectively trying to filter the very non-filtered DC from the charging circuit output. Little capacitors made for noise filtering on DC aren't designed to handle a ton of ripple, and the one on the...

Thanks Ike. Your questions are appreciated. No Guinea pigs will be harmed if I can help it. :-) I've been asked by several people on the board to make 24V regulators available. The reasons given to me include the high price and high failure rate of the originals. If I'm going to design...

I just spent about half an hour entering search strings like disconnect battery while running, regulator damage, no battery, disconnect battery, but didn't turn up what I was looking for. It seems to me I've read that disconnecting the 24V battery while an MEP-002A or MEP-003A is running is...