Re: 6 Vac to 6 Vdc rectifier /regulator for a motorcycle



On Oct 19, 9:15 am, John Popelish <jpopel...@xxxxxxxx> wrote:
pjsi...@xxxxxxxxx wrote:
I would like to build a rectifier / regulator for my motorcyle.
The magneto puts out 6 Vac so it needs to rectify it to 6 Vdc and be
capable of handling about 10 amps.
I would like to charge the battery without overcharging it.
does anyone have a suggestion or schematic

If the magneto has an isolated winding, a simple bridge
rectifier may be all you need to convert the output to DC.
You might use one made of Schottky diodes to cut the need
for heat sinking in half. I think that regulators for such
systems are often simple shunt regulators that load the
battery voltage to keep it from exceeding about 7 volts.
These are rather simple zener diode transistor circuits.
But they need to be switched off when not in use, if
connected directly across the battery. If they have their
own bridge rectifier, so they load only the magneto coil,
that bridge isolates them from the battery when the engine
is off.

I bought a bridge rectifier to convert the ac to dc, but I can't
figure out a circuit to control the voltage and amperage so that I
wont boil the battery

.



Relevant Pages

  • Re: 6 Vac to 6 Vdc rectifier /regulator for a motorcycle
    ... If the magneto has an isolated winding, a simple bridge rectifier may be all you need to convert the output to DC. ... I think that regulators for such systems are often simple shunt regulators that load the battery voltage to keep it from exceeding about 7 volts. ... If they have their own bridge rectifier, so they load only the magneto coil, that bridge isolates them from the battery when the engine is off. ...
    (sci.electronics.design)
  • Re: 6 Vac to 6 Vdc rectifier /regulator for a motorcycle
    ... If the magneto has an isolated winding, a simple bridge rectifier may be all you need to convert the output to DC. ... I think that regulators for such systems are often simple shunt regulators that load the battery voltage to keep it from exceeding about 7 volts. ... If they have their own bridge rectifier, so they load only the magneto coil, that bridge isolates them from the battery when the engine is off. ... A Schottky diode is something like a half of a semiconductor junction. ...
    (sci.electronics.design)
  • Re: 6 Vac to 6 Vdc rectifier /regulator for a motorcycle
    ... The magneto puts out 6 Vac so it needs to rectify it to 6 Vdc and be ... I would like to charge the battery without overcharging it. ... rectifier may be all you need to convert the output to DC. ... Heyyy...I thought Si diodes generally have less Vd than Schottky? ...
    (sci.electronics.design)
  • Re: 6 Vac to 6 Vdc rectifier /regulator for a motorcycle
    ... The magneto puts out 6 Vac so it needs to rectify it to 6 Vdc and be ... I would like to charge the battery without overcharging it. ... rectifier may be all you need to convert the output to DC. ... I bought a bridge rectifier to convert the ac to dc, ...
    (sci.electronics.design)
  • Re: Battery charger/starter repair
    ... Since a battery does not need pure DC to charge it, is this simply a regulated pulsed DC output ??? ... So, either a different rectifier, or a circuit breaker, or a current limiting resistor is toast. ...
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