Full Wave Voltage Multiplier

195

02:35:18

In the real world 
@ 120 VAC in you get approximately 300 VDC out.
@ 80 VAC you get approximately 130 VDC.

Note:
120 VAC from wall gives only 260VDC where as hooking up to my auto transformer stepping up 40 VAC from Auto transformer to 120VAC through step up transformer then to circuit gives the 300 VDC output. This is something Im not understanding.
 
Shake the phone to inject noise and start the oscillation of the capacitor and you see the multipling  effect

published 9 years ago

rich11292000

9 years ago

In the real world a 120 AC is rated in rms. We need to find its peek voltage. 120*1.414=169 volts peak. Now we can find peak to peak. 169*2=338 v p2p.

rich11292000

9 years ago

What you dont understand: The program requires the peak voltage. 120 Volts DC is 120 volts peak and 120 volts rms at the same time. For AC to achieve 120 rms it needs a higher peak voltage.

rich11292000

9 years ago

If you didn't know about AC vs DC and their peak vs rms differences, then you will need to conquer that.

dansperfect

9 years ago

I do understand the differences between rms and peak to peak and ac vs dc. My issue is with the software and why it's not acting the same as the real world. I don't know where you got I don't know the difference between AC and DC. Maybe it's just your assumption. The program will not show 300 VDC like it does in the real world. Where you get anything else from I don't know.

rich11292000

9 years ago

The program requires you to enter the "peak value". 120 VAC is the "rms value". The wall outlet is labeled "120 VAC", this is its rms description. VAC is always rms. A portable voltage meter measures rms, a oscilloscope measures peak.

rich11292000

9 years ago

Don't take offense. You were smart enough to find this "misunderstanding" by yourself. This is actually a good sign of your "understanding". But my illiterate txt can be considered as biligerent drunk, so I will provide a simple circuit. Just trust me.

rich11292000

9 years ago

http://everycircuit.com/circuit/5759980483641344

dansperfect

9 years ago

Ok but nome of this explains why the program even setting voltage to 160 still only puts out 150 on the programs voltmeter. My voltmeter reads the 120 rms once fully rectified it reads it as 160 adding the capacitor makes it 300 but why cant this app simulate the stacking effect of the capacitor?

rich11292000

9 years ago

You have the wrong schematic or you made a mistake.

dansperfect

9 years ago

No I didnt make a mistake I have looked over this schematic with the actual PCB I made and am using. My PCB functions correctly the program does not

kingrebelf

8 years ago

This is all rong the ac from the wall goes from 0 to 120+ back to 0 then then to -120 and then the pattern starts all over in this scematic your power source ocilations only go from 0 to +120 then 0 then +120 so it is not the same as wall power at all.

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