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yra
modified 9 years ago

AC vs DC RMS vs Peak 2 Peak P2P

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01:59:33
Guys this is a simple program, not a full function cad simulator, try to get behind the author and thank him that this format exist. People from around the world can show and tell like in school when you were a kid. Personally im well aware of rms on a meter and peak across a bridge rectifier and how much voltage Large capacitor adds to the value of DC. Like pushing 176 p-p too 201 with the proper capacitor from a 120 rms outlet. But not much of this matter's too a lot of the hobby seekers that occupy this forum they just want some help with creating something by them selves. Hey Wait A Minute my digital meter shows different readings than this program , EC work's as a oscilloscope with peak 2 peak voltage only. will this program convert voltage through a bridge rectifier. No it doesn't again only P2P voltage for the drawing's, some times you have to know the math behind what someone is drawing to know what your DMM is reading back to you. Keep publishing things & ask lots of questions your real world results maybe one question away. There are smart people working to fix the program. Maybe they'll Make it convert across a bridge from AC to DC so you can be happy and not be in the dark if you are only using a DMM too make your measurements when you draw a circuit. One more thing is that the voltage coming in to a bridge rectifier is feed in at 50 or 60hz true ac and the bridge rectifier converts this to 100 or 120hz pulsed DC, you're DMM reads different than a oscope, on your DMM you will have one voltage feeding in to a bridge and a very different voltage coming out. This is not shown on EC or a oscope the same as your DMM. The reason for your RMS values at 50 - 60hz is due to DC value of the work a sign wave will do called heating effect. To break this down simply, Half the sign frequency from gnd reference is + & half is - . including (heating effect) Transformer leakage or creating and collapsing field within a transformer = RMS value. Peak 2 peak when calculated move's the gnd reference to the bottom at 0 volts and removes the heating effect or true work ability of a sign wave, P2P will not account for the loss in the transformer fields, P2P Read's AC as a square wave not a sign wave. This is why a oscope reads different than your DMM. By the way .707 of the AC value is the usable part of the waveform due to creating and collapsing fields. That is why AC is RMS value not P2P. The voltage is only P2P after it passed through a bridge rectifier or another form of rectification and smoothed with capacitors. This is how rectified AC can be converted to true DC, the calculation is very simple. RMS value * 1.414 = P2P value or RMS value / .707 = P2P value. Example: 60volts * 1.414 = 84.84 volts P2P. Example 2: 60v / .707 = 84.86 volts P2P. This is a simple explanation of AC 2 DC with lots of things left out so please do your own research for a more detailed understanding. Please refer to this example for more information on RMS conversation of a sign wave to P2P or why true RMS is used. http://www.electronics-tutorials.ws/accircuits/rms-voltage.html This is a quote from one of our members. Electromanyy ; member at EC Greetings: I have used EveryCircuit for several month now and I have found it to be a very good program for general electronics. I have also tried several other simulation program and none of them even come close to the user friendly functionality of this program. The autoranging oscilloscope es especially useful and easy to use compared to the other simulation programs that I have tried. Also the realtime feature allows for ready application of "what if..." scenarios in testing circuit as you modify them. The spice simulations programs that I have tried have a long way to go to match the utility of EveryCircuit for beginning electronics users and hobbyists. Thanks a million to those who have developed this wonderful simulation program. I would like to chat with you sometime, I have found some rare glitches and would like to recommend some additional features. Thanks to everyone for helping build this forum and make it better every day.
published 9 years ago

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.

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