Build your own Stator Regulator


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AZgl1800
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Build your own Stator Regulator

Post by AZgl1800 »



I read a lot of technical newsletters, and this little jewel showed up today and really caught my interest.

It seems like it would really be the cat's meow for replacing the OEM regulator on the Stator equipped bikes.

Of course, it will need the standard full wave, 3 phase bridge rectifier in front of it.

https://www.analog.com/en/products/ltm4 ... cctid=6419

Oops! won't work.... maximum output is 1.8 volts, I glossed over that important fact in the Tech Data.


~John

'02 GL1800
2009 Piaggio MP3 250cc

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WingAdmin
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Re: Build your own Stator Regulator

Post by WingAdmin »

AZgl1800 wrote:
Tue Jul 23, 2019 4:22 pm
I read a lot of technical newsletters, and this little jewel showed up today and really caught my interest.

It seems like it would really be the cat's meow for replacing the OEM regulator on the Stator equipped bikes.

Of course, it will need the standard full wave, 3 phase bridge rectifier in front of it.

https://www.analog.com/en/products/ltm4 ... cctid=6419

Oops! won't work.... maximum output is 1.8 volts, I glossed over that important fact in the Tech Data.
Sure it would! It's PWM output, so you could safely use the output to drive a set of MOSFETs. The MOSFETs would do the actual switching of the stator voltage. Then set up a voltage divider such that the regulator thinks it is regulating to 1.8 volts, but through the voltage divider that actually equates to 13.8 volts.

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WingAdmin
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Re: Build your own Stator Regulator

Post by WingAdmin »

Actually, the most efficient way would be to have something that switches each of the three-phase AC legs at the appropriate point in the sinusoidal cycle so that the RMS output, when rectified, is the desired voltage. That's a pretty complex circuit, though.

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AZgl1800
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Re: Build your own Stator Regulator

Post by AZgl1800 »

WingAdmin wrote:
Tue Jul 23, 2019 6:24 pm
Actually, the most efficient way would be to have something that switches each of the three-phase AC legs at the appropriate point in the sinusoidal cycle so that the RMS output, when rectified, is the desired voltage. That's a pretty complex circuit, though.
yes,
that does get really complex and is beyond what most of our m/c friends can do.
I was in a daze after having two really bad days recovering from a bad fall.

Saw this circuit and thought that it is really simple, and is PWM, not a linear device.
what you said would do the trick


~John

'02 GL1800
2009 Piaggio MP3 250cc

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