How to make dc from ac

232

04:57:55

4 diody 1 tranzystor

published 9 years ago

Robert_Kidd

9 years ago

A couple of errors in your circuit. Bottom of right hand diode should be connected to earth side, not positive side. Load resistor in a few milliohms, make it 1kOhm for example.

WTFCircuit

9 years ago

The bridge rectifier is completely wrong

Robert_Kidd

9 years ago

If you make the change I've suggested the bridge rectifier will be completely right. That reminds me of a Morecambe & Wise sketch with Andre Previn when Eric says 'No, all the notes are RIGHT, but not necessarily in the right order!'

WTFCircuit

9 years ago

No it will be still wrong

Robert_Kidd

9 years ago

In what way?

Robert_Kidd

9 years ago

With the change I suggest each side of AC source goes to an anode/cathode junction. The two diode anodes give the earthy side and the two diode cathodes provide the positive rail. The cap is maybe too small in value but that just means it stabilises in EC faster. The load resistor is virtually a short circuit which is why I suggested 1k as a starting value. So, what's wrong?

checker

9 years ago

Not a thing, it is exactly the same as any other bridge rectifier but looks different and some people are resistant to change. But never question WTF and hurz... they are always right.

Robert_Kidd

9 years ago

Hi checker, appreciate your input. I'm waiting for @WTFCircuit's answer with baited breath. Otherwise I'll be saying WTF!

Robert_Kidd

9 years ago

I'll question anyone but I know where you're coming from :-)

Robert_Kidd

9 years ago

@WTFCircuit - time to admit you're mistaken!

Robert_Kidd

9 years ago

No balls?

Smates133

9 years ago

To make a constant current you need to take a capacitor... It will store the energy for a while release it and then be charged a bit again... If you do that your current wont go back to 0 Volt and your Lamp for example wont go on and off ... It will stay on

Robert_Kidd

9 years ago

No constant current circuit here! Is this meant for another posting?

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