I have made a full wave bridge rectifier and added two 50V 4700 uF capacitors in parallel connection and I am getting a massive 60V output without any load. I need a stable output of 12-14V on moderate throttle. What should I do? Help me guys.

I have measured the output in different conditions. Please check that and give me the solution.

 

You already have an open Thread on this subject.
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You already have an open Thread on this subject.

I am new here.I don't know how to delete or close a thread.

 

I am new here.I don't know how to delete or close a thread.

You don't.
You just continue in the original thread.

 

You don't.
You just continue in the original thread.

Alright bro.But what should I do with this duplicate thread..?

 

Don't just delete a Thread,
other people may benefit from seeing the development process of getting to some solution that works.

A High-Power, Linear-Voltage-Regulator, mounted in a cast-Aluminum-Box,
along with several Power-Resistors and some Zener-Diodes,
is easy to make, and will provide excellent protection for your LEDs.

Do You know how to build simple Electronic-Projects ?
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Don't just delete a Thread,
other people may benefit from seeing the development process of getting to some solution that works.

A High-Power, Linear-Voltage-Regulator, mounted in a cast-Aluminum-Box,
along with several Power-Resistors and some Zener-Diodes,
is easy to make, and will provide excellent protection for your LEDs.

Do You know how to build simple Electronic-Projects ?
.
.
.

No bro.I don't.What if I reduce the voltage of the capacitors to 35v and use a buck converter to step down the voltage to 14v..?

 

I think what we learned is that, without a load the (DC with capacitor) gets very high. Which seems right. Probably the AC signal has a very high peak and a low average when that is no load.
I think we need a small load all the time. Maybe a small 12V lamp, light a tail lamp.

 

It is possible, although it's rare,
for the Alternator Voltage to go over ~100-Volts under certain circumstances,
like a loose wiring connector.

You don't need Capacitors for anything.
If You reduce the Maximum-Voltage-Rating of any Capacitor below the Peak-Voltages present,
You run a very real risk of causing the Capacitor to explode.
Capacitors do not "Regulate" Voltage, they only temporarily "Store it" for use later.

You are not likely to find a Buck-Converter that can withstand an Input of ~60-Volts.

You have already been offered a dirt-cheap-solution back in your first Thread,
for only ~$2.00 it's worth a try to see how well it works.
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I have made a full wave bridge rectifier and added two 50V 4700 uF capacitors in parallel connection and I am getting a massive 60V output without any load. I need a stable output of 12-14V on moderate throttle. What should I do? Help me guys.

I have measured the output in different conditions. Please check that and give me the solution.View attachment 325859

I don't see how the alternators output voltage with no load is 6v and when there is a load it rises to 13v? Also what's the "Halogen" about here, I thought you were looking to use LEDs?

 

I don't see how the alternators output voltage with no load is 6v and when there is a load it rises to 13v? Also what's the "Halogen" about here, I thought you were looking to use LEDs?

Yes, I will use LED but the halogen consumes more power and works both on AC and DC.To put pressure and to get output on maximum conditions from the whole system I just experimented with the halogen.

 

I don't see how the alternators output voltage with no load is 6v and when there is a load it rises to 13v? Also what's the "Halogen" about here, I thought you were looking to use LEDs?

Yes It seems weired to me.But it is what it is.Without any load it only gives 6V and with load it gives 13-15.

 

It is possible, although it's rare,
for the Alternator Voltage to go over ~100-Volts under certain circumstances,
like a loose wiring connector.

You don't need Capacitors for anything.
If You reduce the Maximum-Voltage-Rating of any Capacitor below the Peak-Voltages present,
You run a very real risk of causing the Capacitor to explode.
Capacitors do not "Regulate" Voltage, they only temporarily "Store it" for use later.

You are not likely to find a Buck-Converter that can withstand an Input of ~60-Volts.

You have already been offered a dirt-cheap-solution back in your first Thread,
for only ~$2.00 it's worth a try to see how well it works.
.
.
.

Thank you very much bro.I will try and let everyone know about the outcome.

 

I think we have an alternator running without a battery. In a car I have run 120Vac radios from the alternator without a battery connected.
I think the meter is tricking us. An oscilloscope will show a complex waveform, with no load, the peak is very high while the average is very low.

 

I think what we learned is that, without a load the (DC with capacitor) gets very high. Which seems right. Probably the AC signal has a very high peak and a low average when that is no load.
I think we need a small load all the time. Maybe a small 12V lamp, light a tail lamp.

You are a mind reader bro..I'm going to add a DRL and give it a try.Hope it works..

 

I think we have an alternator running without a battery. In a car I have run 120Vac radios from the alternator without a battery connected.
I think the meter is tricking us. An oscilloscope will show a complex waveform, with no load, the peak is very high while the average is very low.

No bro.It has a battry.Let me explain more.The output from the alternator first go to the RR Unit(Rectifier Regulator).From the RR Unit we get two output.One is DC for Charging the Battery and The other one is AC 12-15V to power the headlight.

 

The other one is AC 12-15V to power the headlight.

Is this reference to the battery negative and chassis ground?

 

Is this reference to the battery negative and chassis ground?

Didn't get your question properly.Chasis ground and a yellow wire from the RR Unit powers the Headlight.But the chasis ground and Battery negative isn't connected together.If I try to connect it sparks.

 

Why not put the new LED headlight on the battery?

 

Why not put the new LED headlight on the battery?

I tried this first.But it reduces the battery life.After every 3 months I've to replace the battery.