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Author Topic: Voltage step down from solid state full wave rectifier  (Read 2060 times)

Offline magnetman12003

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Voltage step down from solid state full wave rectifier
« on: July 08, 2015, 03:36:01 AM »
My full wave bridge rectifier has an output of 140 volts DC.
How do I decrease the output to 12 volts DC without using a power robbing resistor in
series with the rectifier?


I would like to have as much current as possible-- is there some type of module that can do this job or a simple circuit?


All help greatly appreciated.  If possible hand draw whatever circuit or tell where I can find a module.

Free Energy | searching for free energy and discussing free energy


Offline MarkE

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Re: Voltage step down from solid state full wave rectifier
« Reply #1 on: July 08, 2015, 05:00:01 AM »
My full wave bridge rectifier has an output of 140 volts DC.
How do I decrease the output to 12 volts DC without using a power robbing resistor in
series with the rectifier?


I would like to have as much current as possible-- is there some type of module that can do this job or a simple circuit?


All help greatly appreciated.  If possible hand draw whatever circuit or tell where I can find a module.
For power up to about 10W buy and connect a 12V wall wart.  For higher powers buy a 120VAC to 12V power supply.  You will have to check to make sure the supply you buy does not use a voltage doubler style front-end which is unfortunately very common as it allows one design to handle 110/120VAC and 220/240VAC sources.  Supplies that use a doubler have a voltage selection switch.  Supplies that do not use doublers are labeled "universal" and do not have an input voltage selector switch.

Offline TinselKoala

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Re: Voltage step down from solid state full wave rectifier
« Reply #2 on: July 08, 2015, 06:00:27 AM »
Put a step-down transformer on the AC side of the FWB.

Free Energy | searching for free energy and discussing free energy

Re: Voltage step down from solid state full wave rectifier
« Reply #2 on: July 08, 2015, 06:00:27 AM »
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