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Solid States Devices => solid state devices => Topic started by: Earl on June 22, 2007, 08:09:18 PM

Title: Digital Circuit Diagrams+FETs+Drivers
Post by: Earl on June 22, 2007, 08:09:18 PM
I decided, since there are various topics and sometimes up to many hundred replies in just one topic, to start one just for circuit diagrams, eventuall also a repository for things like FET drivers, or power FET comparisons.  Here we talk only of circuit schematics and electronic parts.

To start with, here is a circuit for digital substraction of two frequencies.  The cool thing about this circuit is that the two frequencies can approach each other and even become equal.

Regards, Earl
Title: Spreadsheet for calculation of delta time_2 Freqs
Post by: Earl on June 22, 2007, 08:20:04 PM
Hi All,

My previous post was for a circuit to digitally subtract one frequency from a second frequency.  Why would anyone be crazy enough to do this in an attempt to seduce Nature into giving up one of her secrets?  Well, by having two perturbations at nearly the same frequency into two coils, or maybe at opposite ends of the same coil, one might be able to synthesize virtual perturbation pulses that have very narrow width.

I wrote up this idea in an auto-calculating spreadsheet that can be loaded into Excel or Open Office.

This idea could also be used if one of the frequencies was doubled, for example 2*f1 together with f2 where f2 approaches f1.

Regards, Earl
Title: Digital Frequency Dividers where N is ODD number
Post by: Earl on June 22, 2007, 08:23:32 PM
Hi All,

for those of you experimenting with 3-coil TPUs, here is a circuit for dividing by an odd number.

Regards, Earl
Title: Generate narrow pulse using D-flip/flop
Post by: Earl on June 22, 2007, 08:29:51 PM
Hi All,

Here is a simple circuit for generating a narrow pulse.  If a resistor is added as shown, the pulse can be made wider.  If following the resistor, the preset pin has a capacitor to Vdd, the pulse can be made quite large.  By replacing the resistor with a potentiometer as the resistance varies so will the pulse width.

Regards, Earl
Title: last post / schematic
Post by: Earl on June 22, 2007, 08:33:51 PM
Hi All,

The top, right schematic left an input pin open i.e. hanging in the air.  This is a no-no.  It should be tied to Vdd since it is active LOW (the pin indicates this inversion with a little circle).

Also if the other half is not used, the unused D-flipflop should have all (unused) inputs going either to Vdd or ground, AS APPROPRIATE (not random, but thought over to not cause problems).

Regards, Earl
Title: Digital Phase-Shifting Circuit
Post by: Earl on June 23, 2007, 02:45:13 PM
Hi All,

here is a circuit that permits exciting coils with the same frequency, but different phases.
Title: Calculate time difference for certain freq and phase
Post by: Earl on June 23, 2007, 02:47:49 PM
Hi All,

attached is a spreadsheet for Excel or Open Office that calculates time versus phase offsets.

Regards, Earl
Title: Digital Divider_Q and Q bar outputs
Post by: Earl on June 26, 2007, 11:42:50 PM
THE ATTACHED SCEMATIC HAS AN ERROR IN THE INPUT TO THE SECOND STAGE.  PLEASE DELETE IT IF YOU HAVE DOWNLOADED IT.  NEXT POST WILL HAVE CORRECTED AND UPDATED SCHEMATIC.

Hi Bob, hi All,

With reference to kicks_circuit.gif at
http://www.overunity.com/index.php/topic,2607.msg37046.html#msg37046

Please find attached circuit diagram of binary divider with inverted and non-inverted outputs for each stage.

This circuit could be used for both 3-coil and 4-coil setups, although it may be necessary to introduce 120 respectively 90 phasing into the divider chain.  Only experiments will determine whether this phasing is needed or not.

Regards, Earl
Title: DIGITAL DIVIDER with COMPLEMENTARY OUTPUTS
Post by: Earl on June 27, 2007, 09:17:39 AM
Hi Bob, hi All,

Here is a corrected and expanded schematic that has divide-by-N, where N is even, along with both 0 and 180 degree phasing for each frequency.  In addition, I added an optional variable pulse width circuit.

Bob, if you want to fine tune everything then add two stages of variable pulse width at each ./.2 output.  Use the first pulse width modulator to fine adjust each coil's "firing point" and the second pulse width modulator to fine tune the pulse width for maximum radiant energy.

These settings will not change at lower frequencies, so you will still be able to sweep and watch for sweet spots.  When you get to 5, 10, 20, 30 Mhz the D-FF propagation delays are no longer negligible, so you would have to touch up.

It is still not clear to me what resonance is being chased:  L/C, magnet, magnetic, aetheric, Earth-Sun magnetic or plasma effect, none, or ????????
Maybe it is only an aether perturbation effect with rebound that has no resonance or so high as to be unmeasurable/unobtainable ???

I think all the assembled brain power is slowly closing in on one or more anomolies.

Regards, Earl
Title: DIGITAL DIVIDER WITH FINE PHASE ADJUSTMENTS
Post by: Earl on June 27, 2007, 09:47:12 AM
Hi Bob,

here is a further updated schematic.  Does this include all your TPU desires?

Regards, Earl
Title: Re: DIGITAL DIVIDER WITH FINE PHASE ADJUSTMENTS
Post by: bob.rennips on June 27, 2007, 11:14:49 AM
Hi Bob,

here is a further updated schematic.  Does this include all your TPU desires?

Regards, Earl

Yes indeedie - fantastic work. Roll on weekend!!
Title: Rapid Fire Rat Race Controller
Post by: Earl on July 05, 2007, 11:53:08 PM
Hi All,

Attached is my newest idea with schematic.  It can rapidly fire any number of coils around a circle.  And using two can produce counter rotating fields.  I call it the rapid fire Rat Race controller.

In a setup that uses counter-rotating fields, the two clock inputs could be tied together making the fields frequency and phase locked together.  The the generator can be swept over a wide frequency range, even up to 30 MHz.  No adjustments are needed.

I believe that the physical placement of the coils would give a certain, fixed phase offset, while choosing a different physical starting point would give a different phase offset.

If driven from two different frequencies, there could be a harmonic relationship to the clocks: i.e. 1:2 or 1:3 or 1:4 - it is easy with digital dividers to pick whatever ratio you fancy.

If using two independent generators instead of one generator together with a divide-by-N, then both frequency and phase can be varied.

Between the Rat Race and the FET driver, a D-flip/flop, connected as a fast monostabile, could be added.  A 74HC74 could give very narrow pulses as narrow as ~10 ns.  I will add this in the next schematic version.

Regards, Earl
Title: Rat Race Version 2
Post by: Earl on July 27, 2007, 05:54:36 PM
IGNORE THIS INCOMPLETE SCHEMATIC, SEE FINAL SCHEMATIC BELOW.
I SOMEHOW SELECTED THE WRONG IMAGE WHEN UPLOADING.


For those who think 3 or 4 coils is much too few, here is a circuit that easily drives 4, 8, 16, 32, 64, 128, etc. coils.  It is the rapid fire Rat Race version 2.  It fires one coil after the next, no pause.

You can also use two of these, one clocked at f, the other at 2f or 1/2 f.

Enjoy.  Earl
Title: Fastet, narrowest pulser possible
Post by: Earl on July 27, 2007, 06:09:44 PM
Hi All,

You will have difficulty building a faster or narrower pulser than this.

As being somewhat locked inside the box, it is only natural for us to think of FET drivers and power FETs.  After all a lowly IC can only deliver so much current.  But if we stick to a very narrow pulse and a minimum amount of wire we won't even approach the current limit of the IC.  So why are we so scared?

Because we are trapped into the mentality of big power in to get big power out.  We say we believe in free energy, but we are afraid of zero input power.

Either 12V p-p is enough, or maybe a boost with some electrostatic or magnetostatic bias is necessary.
20kV will certainly be enough, hehehe.  Don't overdo it, go slowly with any bias.  High voltage can cause a short lifespan, not only for ICs, but also experimenters, so be careful.  One hand for the circuit, one hand for the pocket.  If you are inexperienced or careless, stay with voltages under 24V.

By the way, if you use an open circuit transmission line, and you cut off just one side so the two lengths are not equal, 1mm gives a delta t of about 4 picoseconds.

Enjoy and post any feedback from your experiments.

Earl


Title: corrected Rat Race version 2
Post by: Earl on July 27, 2007, 06:17:52 PM
HI,

somehow the wrong image got selected.  Here is the correct image.

Ignore the previous schematic.

Earl
Title: Fastest, narrowest, and simplest pulser_newest version
Post by: Earl on July 27, 2007, 08:56:40 PM
Hi All,

made some improvements to the circuit.

Earl
Title: Re: Fastest, narrowest, and simplest pulser_newest version
Post by: tao on July 27, 2007, 09:08:35 PM
Hi All,

made some improvements to the circuit.

Earl


The only thing faster than that thing is Billy the Kid :P...

Nice work Earl.

This might work real good for this device, called the 'Easy Free Energy Device': http://www.overunity.com/index.php/topic,2778.0.html

Simple calculation courtesy of Google: (the speed of light * 10 nanoseconds) = 2.99792458 meters

Guess that is where Earl got his ''minimum length" of 3m from ;).

Just remember that value, when reading about the above mentioned thread/device...
Title: Fastest, narrowest, and simplest pulser_v2.2
Post by: Earl on July 28, 2007, 01:36:24 PM
Hi All,

here is the latest version.

Enjoy.

Earl
Title: TPU + COILS CALCULATOR by EARL
Post by: Earl on July 28, 2007, 02:27:00 PM
Hi All,

here is a little TPU + COILS Calculator.

Enjoy.

Earl
Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: Super God on July 28, 2007, 06:20:55 PM
What is the clock speed for the 10ns pulser?
Title: 74HC74 Clock speed? - answered
Post by: Earl on July 29, 2007, 08:52:44 AM
74HC74
According to a Fairchild datasheet from 1983 at 5V the guaranteed speed is 30 MHz and typical clock speed is 72 MHz.  At 6V supply voltage the figures would be higher.

A Philips datasheet from 1994 says at 4.5V supply the guaranteed minimum is 30 MHz and typical is 69 MHz.
At 6V, guaranteed is 35 MHz and typical is 82 MHz.

Above is at 25 degrees C; higher temps give lower speeds and lower temps give higher speeds.

ATTENTION

The 74AC74 or 74ACT74 have Fairchild specs of
at 5V Vdd of guaranteed minimum clock of 140 MHz, typical 160 MHz.  At 6V, this would be a little faster.

These parts would give pulses of about 3 nsec width., maybe at 6V with very careful layout and by-passing it would be possible to achieve 2 nsec pulse width.

For testing of a 74AC74 circuit, you will need AS A MINIMUM:

An oscilloscope with 300 MHz analog bandwidth
A scope probe rated for 500 MHz bandwidth

Regards, Earl


What is the clock speed for the 10ns pulser?
Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: MeggerMan on March 31, 2008, 02:14:09 PM
.
Title: Re: Fastet, narrowest pulser possible
Post by: turbo on March 31, 2008, 08:58:50 PM
Hi All,

You will have difficulty building a faster or narrower pulser than this.


Are you sure ?  ::)

Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: MeggerMan on March 31, 2008, 11:30:51 PM
Earl,

OK it works now (wires were not joined), when I see it running I can see how simple it is, 3 chips (2 x dual D flip-flops,1 x 4 input NOR) and thats it!

(http://i100.photobucket.com/albums/m25/kingrs/rat_racex4.jpg)

I have attached the file if anyone wants to try it.
See
http://www.falstad.com/circuit/

Regards
Rob
Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: MACEDONIA CD on April 01, 2008, 12:03:52 AM
HI


IS GOOD TO BE FAST BUT  WHIT SINUS FREKFENCY  NOT LIKE THAT                                                                                                                  .........................<<SINUS FREK.  >>IS FREKFENCY    PULSE IS NOT ...... THE PULSE   HAVE TO MANY  HARMONICIS  THE HARMONICS  NOT GIVE PROPERTLY MOVING  ELKTROMAGNET FILD.. IF  WE BE CREATED  SIMPLE  ELKTROMAGNET FILD AND MOVING PROPERLY  MAKEING  FAST TURNS <<THEN  YOU HAVE   LIKE  YOU HAVE  SMALL MAGNET  MAKEING   FAST TURNS  CLOUSE    HMMMMMM
Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: orbs on April 03, 2008, 10:15:10 PM
As far as sine wave output, if that was desired, remember unidirectional concept.  The actual
output can easily tuned to emulate a perfect sine.

Sometimes it can even be easier to generate square waves from sine waves, which might seem strange at first. A DDS (Direct Digital Synthesizer) generates a sine wave approximation using very fast D/A converters. This approach allows to generate very finely tuned output signals with accuracy of fractions of Hz, and errors and drifts can be corrected digitally. The signal is then low-pass filtered to get a smooth sine wave. Putting this through a good comparator can then yield a square wave signal with almost perfect 50% duty cycle (because the used sine signal was perfectly symmetric). While such a DDS is more complex, most of it can be put on a single chip, and calibration and selection of the good chips is done at the factory and you don't have to do it yourself (but obviously you pay for it).

An example is the AD9912 mentioned in the other thread (http://overunity.com/index.php/topic,4297.msg86833.html#msg86833).
Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: MeggerMan on April 04, 2008, 12:00:26 AM
@Orbs,
There is a whole thread on the DDS 20 kit from ELV in Germany. Cost is about 42 GBP/ 80 USD for the kit which is easy to build - only the big through hole components to add.
I translated most of the manual to English with my own interpretation of the workings of the DDS 20 based around the AD9835 chip.
 http://www.overunity.com/index.php/topic,2650.msg38239.html#msg38239

I am currently working on a -5V inverter circuit to piggy back on the back of the DDS 20 board.

As soon as I have finished decorating the front room I'll finish it off (V1.1). (I promised Roberto 1 board and Ward 4 boards + 4  cases).
(http://i100.photobucket.com/albums/m25/kingrs/inverter_layoutv1-1.jpg)

Here is V1.0 + circuit (I have not got a photo of V1.1).
(http://i100.photobucket.com/albums/m25/kingrs/inverter_built_v1.jpg)
(http://i100.photobucket.com/albums/m25/kingrs/inverter_schematic_v1-0.jpg)

Here's the DDS 20 squeased into a small ali case:
(http://i100.photobucket.com/albums/m25/kingrs/DDS20_case_DC_socket.jpg)

The kit contains this:
(http://i100.photobucket.com/albums/m25/kingrs/dds20_kit.jpg)

The only down side with this is the LCD display segments do not always show but you can sort this by using a neoprene bezel inside the case pushing the LCD display onto the PCB.

Regards
Rob
Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: Feynman on April 04, 2008, 12:04:26 AM
Wow, great thread!  I really like the ideas of shift registers, dividers, and flip-flops for frequency synthesis.

@MeggerMan
Regarding this latest post, are they still not shipping these kits to USA?  I'd be interested in getting one. . .
Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: MeggerMan on April 04, 2008, 12:18:21 AM
@Feynman
What I did for Ward was he sent me the money, I ordered the kits (6 of them) to the UK, I built the boards and posted them to the USA.
On one of the boards I found a fault with a tiny solder ball bridge on AD9835 that I found with my microscope, once I removed, it worked fine.

Jason is working on board with 3 x DDS chips, phase shift for each DDS, pulse duration control, opto isolation, MOSFET driver - in effect the works.
I think he's driving it with a PIC Stamp using basic.

I have most of the parts to build the AD9959 quad channel DDS, plus the low jitter 125MHz SAW oscillator.
BUT....its a big project, make no mistake and needs some complex PIC programming to pull it all together.

Soldering the AD9959 is the tricky bit, the chip is 8mm square, 56 pins, 0.56mm pin pitch.
(http://i100.photobucket.com/albums/m25/kingrs/DS1023-100_AD9959.jpg)
I was considering buying some cheaper chips with a similar pin count and trying my PCB oven with different ideas.
 
Regards
Rob
Title: Re: Digital Circuit Diagrams+FETs+Drivers
Post by: orbs on April 04, 2008, 01:44:53 AM
There is a whole thread on the DDS 20 kit from ELV in Germany.

Thanks -- pretty cool stuff! Well, the AD9912 (http://overunity.com/index.php/topic,4297.msg86833.html#msg86833) I mentioned is in a slightly different category (up to 400 MHz, jitter in pico-second range, etc.), more expensive and more difficult to solder. It's also pretty new, so no kits available yet. Possibly overkill for SM's design (compared to spherics' one).