PP-18/AR Voltage Converter
A friend of mine gave me these documents and said post them here. Not sure if the friend wants a whole heap of fuss in his direction I'm sure he'll post here sooner or later but for now he's an anonymous friend. I think a few of you out there will see these for the goldmines they are!
The documents contain information about the PP-18/AR Voltage Converter, for those who are unaware of what I am talking about it is the device Eric Dollard uses to power the electronics in his car. The first couple of images are picture of the device and the last image is of the wiring diagram!
Imageshack - img20851.jpg
Imageshack - img20861.jpg
Imageshack - img20871j.jpg
Imageshack - img20901.jpg
Imageshack - img20951.jpg
Also I have an explanation of it from Eric himself (attached). I didn't find it too helpful but maybe that's just me. I knew how the device would have operated the problem is seeing how this results in extra energy. I do believe I know how this works though and I think it proves you don't need a nice sinusoidal variation of parameters because in this case a plot of the variation per unit time results in a square wave type signal.
I have shown in earlier posts that a change in capacitance over time results in a negative conductance which is basically a negative resistance but only when the parameter variation is going from a higher value to a lower value (say 10mF -> 5mF). Therefore when they are charged in parallel they have a higher capacitance and when they are discharged they are done so in series and therefore have a lower value for the overall capacitance. So when they are discharged they are discharged through a negative resistance and this is where the excess energy comes from.
I have also been thinking that a solid-state device would be easier to get going than a rotative device which was confirmed by my friend because there are too many variables in rotative devices. By use of this method or the use of specific configurations of magnetic amplifiers I think it would be quite easy to achieve parametric excitation and as long as the energy used to change the capacitance is less than it generates we have energy to power a load.
The variables in a rotation type apparatus that make the it harder to obtain the effects we are after are numerous. For example in a magnetic style which rotates to achieve a changing inductance per unit time we have the problem of Lenz's Law. This was noted by LtBolo in his research. In a solid state apparatus we can excite an external circuit without Lenz's law through use of inductors wound on a common core with no flux coupling only parametric coupling. This is not so much of a problem in a rotating capacitor type setup because of the geometry of dielectric field lines. However phase is a critical issue in both of magnetic and capacitive type setups. The change needs to be done at the correct time in contrast to input signal. This is a lot easier to control electrically than mechanically.
In the PP-18/AR our modulation rate is quite high (max capacitance - min capacitance divided by max capacitance + min capacitance) and it's a lot easier to achieve higher modulation rates in solid state than in rotating setups since the space it would require would be large. So when November rolls in and I finally finish my exams I know where my first avenue of experimentation will be.
Raui
A friend of mine gave me these documents and said post them here. Not sure if the friend wants a whole heap of fuss in his direction I'm sure he'll post here sooner or later but for now he's an anonymous friend. I think a few of you out there will see these for the goldmines they are!
The documents contain information about the PP-18/AR Voltage Converter, for those who are unaware of what I am talking about it is the device Eric Dollard uses to power the electronics in his car. The first couple of images are picture of the device and the last image is of the wiring diagram!
Imageshack - img20851.jpg
Imageshack - img20861.jpg
Imageshack - img20871j.jpg
Imageshack - img20901.jpg
Imageshack - img20951.jpg
Also I have an explanation of it from Eric himself (attached). I didn't find it too helpful but maybe that's just me. I knew how the device would have operated the problem is seeing how this results in extra energy. I do believe I know how this works though and I think it proves you don't need a nice sinusoidal variation of parameters because in this case a plot of the variation per unit time results in a square wave type signal.
I have shown in earlier posts that a change in capacitance over time results in a negative conductance which is basically a negative resistance but only when the parameter variation is going from a higher value to a lower value (say 10mF -> 5mF). Therefore when they are charged in parallel they have a higher capacitance and when they are discharged they are done so in series and therefore have a lower value for the overall capacitance. So when they are discharged they are discharged through a negative resistance and this is where the excess energy comes from.
I have also been thinking that a solid-state device would be easier to get going than a rotative device which was confirmed by my friend because there are too many variables in rotative devices. By use of this method or the use of specific configurations of magnetic amplifiers I think it would be quite easy to achieve parametric excitation and as long as the energy used to change the capacitance is less than it generates we have energy to power a load.
The variables in a rotation type apparatus that make the it harder to obtain the effects we are after are numerous. For example in a magnetic style which rotates to achieve a changing inductance per unit time we have the problem of Lenz's Law. This was noted by LtBolo in his research. In a solid state apparatus we can excite an external circuit without Lenz's law through use of inductors wound on a common core with no flux coupling only parametric coupling. This is not so much of a problem in a rotating capacitor type setup because of the geometry of dielectric field lines. However phase is a critical issue in both of magnetic and capacitive type setups. The change needs to be done at the correct time in contrast to input signal. This is a lot easier to control electrically than mechanically.
In the PP-18/AR our modulation rate is quite high (max capacitance - min capacitance divided by max capacitance + min capacitance) and it's a lot easier to achieve higher modulation rates in solid state than in rotating setups since the space it would require would be large. So when November rolls in and I finally finish my exams I know where my first avenue of experimentation will be.
Raui
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