Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search

Author Topic: Dr Ronald Stiffler SEC technology  (Read 278765 times)

mikrovolt

  • Newbie
  • *
  • Posts: 39
Re: Dr Ronald Stiffler SEC technology
« Reply #735 on: July 31, 2018, 07:22:02 AM »
A schematic drawing of the Stiffler loop. Please let me know if there is an error so I can correct it.

This is the revised schematic. Should be correct now. what was the Doc's SG frequency and voltage ?

Lidmotor

  • Full Member
  • ***
  • Posts: 133
Re: Dr Ronald Stiffler SEC technology
« Reply #736 on: July 31, 2018, 07:49:19 AM »
Mikrovolt---  All the 1n4148 and LEDs  are connected (+) (-) (+) (-) etc.  You have one LED connected backward. Maybe it was just a typo.  It is just one big ring of series connected diodes.

Erfandl-- I really want to build that.  I just have not had much luck with it so far.  I have all the parts but for some reason mine is not working like yours.  I will keep trying.

---Lidmotor

erfandl

  • Full Member
  • ***
  • Posts: 106
Re: Dr Ronald Stiffler SEC technology
« Reply #737 on: July 31, 2018, 09:29:03 AM »
Thanks Mr. Hewitt :)


erfandl - I wonder how these are in sync with each other. Are they in sync, or overlaying at the same frequency ?
I probably missed it, but is the input wattage comparable/better than stock connections  ?
It's a very neat idea !
I don't know too ! the circuit is pulling 307 mA from a 12 volt lead acid battery. the light brightness output is like when the bulb turned on with 220 volt input.

erfandl

  • Full Member
  • ***
  • Posts: 106
Re: Dr Ronald Stiffler SEC technology
« Reply #738 on: July 31, 2018, 09:36:25 AM »
Mikrovolt---  All the 1n4148 and LEDs  are connected (+) (-) (+) (-) etc.  You have one LED connected backward. Maybe it was just a typo.  It is just one big ring of series connected diodes.

Erfandl-- I really want to build that.  I just have not had much luck with it so far.  I have all the parts but for some reason mine is not working like yours.  I will keep trying.

---Lidmotor
Lidmotor - hmm I think the shorter L3 wind coil is working because my L3 coil is shorter than yours. I tested this circuit with Axial inductor but the circuit output performance is very poor. I suggest you testing with barrel inductor.

erfandl

  • Full Member
  • ***
  • Posts: 106
Re: Dr Ronald Stiffler SEC technology
« Reply #739 on: July 31, 2018, 11:29:21 AM »
loop diode with 16 LED and 100 v 16 uF cap.


itsu

  • Hero Member
  • *****
  • Posts: 1845
Re: Dr Ronald Stiffler SEC technology
« Reply #740 on: July 31, 2018, 01:07:27 PM »
Thanks for the suggestions guys,

the switching time of a 1N4148 and a BAT42 does not differ much (5ns), so need to find a faster diode for
to have any measurable difference i guess.


I did a quick time measurement of the current signal at both sides of the led entry, they differ 24.8ns.
So that implies that each diode add a time delay of 24.8 / 15 = 1.7ns, but this time delay does not build
up gradually, instead it kind of "jumps" from 0ns to 24.8ns after where the the L3 coil is positioned at the diode loop.


Itsu


Just to backup what i was saying above in bold with a video.

I taped all to my desk to get a stable setup and measured the input to the 12 leds with my yellow probe
which also serves as the trigger point.

The green trace is the current probe starting at the leds plus entry point, then going around to the minus entry
point.

The L3 coil has the diode loop top going inside it to avoid again movement.

I fixed the starting signal by making it Ref1 point, then move the current probe around the loop to watch
for any time delays around the diode loop.

No time delays are seen untill skipping across the L3 coil (which is on the top of the diode loop).
Right after the L3 coil there is a time delay of 25ns which again stays the same untill the current probe
reach the minus entry point of the leds, see screenshot. (yellow voltage / trigger point, white initial current signal,
green ending current signal)

So to me this means that the diodes do not introduce any time delay, its the L3 coil which injects the
signal in the loop that somehow produces this.

Video here:  https://www.youtube.com/watch?v=LAP9LgPWmfI

Sorry about the video, its kind of shaky.


Itsu   

itsu

  • Hero Member
  • *****
  • Posts: 1845
Re: Dr Ronald Stiffler SEC technology
« Reply #741 on: July 31, 2018, 05:57:53 PM »
Perhaps even more important than Vf is the switching time or reverse recovery time of the diode. The faster the diode the higher the operating frequency it can sustain, this is obvious, but what may be less obvious is that faster diodes will "capture" more of the peak of a waveform of even a lower frequency, thus resulting in a higher capacitor charge voltage. This is because the diode shuts off faster so doesn't allow as much reverse leakage out of the capacitor.

Another thing to try is to use a few LEDs in the loop instead of diodes all around. Use, say, three LEDs in series (to approximate the same total Vf of the full diode ring) and complete the ring with a simple wire, the same total length as the 1-LED, diodes all around, loop. A tiny little trimmer cap across the LEDs may help.


While waiting for some low Vf SMD diodes i tried TK's 3 led suggestion.
Each led has a Vf of about 2.7V, so 3 would almost cover the 15 x 0.6 = 9V drop of the 1N4148's.

Using my PS i see that it needs about 38V to light up the 12 Leds on the board plus the 3 leds in the ring.

We have about 15Vpp using my FG at 18Mhz when in resonance which is not enough to light them.
Even the 3 trimmer cap (0 - 100pF) across each of the 3 leds can not improve much (1st trimmer left has
no effect at all, middle / top trimmer some and the right trimmer most), see screenshot where the yellow
signal is across the leds on the board.

Itsu

 
« Last Edit: August 01, 2018, 12:56:40 AM by itsu »

Lidmotor

  • Full Member
  • ***
  • Posts: 133
Re: Dr Ronald Stiffler SEC technology
« Reply #742 on: July 31, 2018, 07:54:54 PM »
Erfandl---  Thanks for the tip about the inductor on your crystal oscillator.  I will try the barrel types and see what happens.  I also will place the components on the board exactly like have them placed.  At this MHz frequency the interaction of the parts in that tiny space may have an effect.

Itsu-- I was afraid that you might find that the 'time delay' explanation might not be the simple answer to the 'Loop'.  I guess we have to wait for Doc's further explanation of what is happening---and then test for that.   :-\

All---This 'Loop' works great on a Slayer Exciter.   To me it just an AV plug on steroids.

---Lidmotor

itsu

  • Hero Member
  • *****
  • Posts: 1845
Re: Dr Ronald Stiffler SEC technology
« Reply #743 on: July 31, 2018, 10:30:07 PM »

In this video Dr. Stiffler introduces a shorted turn (with 1 diode) being placed across the
diode ring which makes the leds go of:  https://www.youtube.com/watch?v=qtNSko30ZMs&t=3s


I did a replication of this, monitoring the input into the L3 coil (voltage, current and power).
It seems that placing this shorted turn will detune the L3 coil out of series resonance causing the leds to go off.

No matter which way i place the shorted turn, the L3 coil is evenly detuned.

I can retune for resonance again when the shorted turn is in place, which will be lower in freqeuncy and lower  in amplitude.

Video here:   https://www.youtube.com/watch?v=bteRDsRfYmE&feature=youtu.be

Itsu


gyulasun

  • Hero Member
  • *****
  • Posts: 4117
Re: Dr Ronald Stiffler SEC technology
« Reply #744 on: August 01, 2018, 12:38:35 AM »
Perhaps even more important than Vf is the switching time or reverse recovery time of the diode. The faster the diode the higher the operating frequency it can sustain, this is obvious, but what may be less obvious is that faster diodes will "capture" more of the peak of a waveform of even a lower frequency, thus resulting in a higher capacitor charge voltage. This is because the diode shuts off faster so doesn't allow as much reverse leakage out of the capacitor.

Another thing to try is to use a few LEDs in the loop instead of diodes all around. Use, say, three LEDs in series (to approximate the same total Vf of the full diode ring) and complete the ring with a simple wire, the same total length as the 1-LED, diodes all around, loop. A tiny little trimmer cap across the LEDs may help.
Hi TinselKoala,
I wonder if the diodes in the loop switch on all at once or in groups or individually, what do you think.  If I understand you correctly, in your above post you suggest the diodes work about all at once.  This then may also imply that the best position of the loop is when the end part of coil L3 (where the near or close field) is the highest is in the loop center point.  Is this correct?

Gyula

erfandl

  • Full Member
  • ***
  • Posts: 106
Re: Dr Ronald Stiffler SEC technology
« Reply #745 on: August 01, 2018, 01:08:43 PM »
All ---  Today, when I wanted to test the loop circuit, The circuit shown a certain behavior ! the LEDs it flashes with a regular rhythm ! I don't know whats happening ! also I hear a noise sound from the circuit with a regular rhythm like flashing LEDs. please see the below video and and tell your opinion.

https://youtu.be/KweXHfmq78w

thanks

gyulasun

  • Hero Member
  • *****
  • Posts: 4117
Re: Dr Ronald Stiffler SEC technology
« Reply #746 on: August 01, 2018, 03:11:37 PM »
Hi Erfandl,
I assume you checked the diode's wire is not touching the metal body of the clip, see attached picture where I mean.
Try to insert an Ampermeter into the battery wire going to the oscillator to see whether the LED flashings are accompanied by a change in input current.  If yes, then examine all the wire contacts plugged into the circuit board etc, look for bad contacts.
Worst case would be if the crystal inside would have started to develop a loose contact, if nothing else is found, use another crystal for the same oscillator to check it.   

Gyula

erfandl

  • Full Member
  • ***
  • Posts: 106
Re: Dr Ronald Stiffler SEC technology
« Reply #747 on: August 01, 2018, 05:43:41 PM »
Hi Erfandl,
I assume you checked the diode's wire is not touching the metal body of the clip, see attached picture where I mean.
Try to insert an Ampermeter into the battery wire going to the oscillator to see whether the LED flashings are accompanied by a change in input current.  If yes, then examine all the wire contacts plugged into the circuit board etc, look for bad contacts.
Worst case would be if the crystal inside would have started to develop a loose contact, if nothing else is found, use another crystal for the same oscillator to check it.   

Gyula
thanks Gyula. problem solved by reassemble the circuit

Slider2732

  • Full Member
  • ***
  • Posts: 119
Re: Dr Ronald Stiffler SEC technology
« Reply #748 on: August 01, 2018, 07:57:31 PM »
Am glad you fixed it..it looked to me like you'd done a Dr. Frankenstein on your circuit, it had come alive and was showing its heartbeat.
Sometimes i'm very glad to be wrong  :D

mikrovolt

  • Newbie
  • *
  • Posts: 39
Re: Dr Ronald Stiffler SEC technology
« Reply #749 on: August 02, 2018, 05:28:30 AM »

So to me this means that the diodes do not introduce any time delay, its the L3 coil which injects the
signal in the loop that somehow produces this.


Just guessing,
From what is shown on the scope the diodes remain in conduction. I am not certain but I don't see the presence of any 4-6 nS delay from junction turn off.
Interestingly in the case of  L3 placement concentric to the loop there does appear to be lead lag as shown. The dynamics of the loop might be a circular wave guide
and the frequency drop might be the total reverse diode junction capacitance. Simlar to tuning miniature magnetic transmitting loop. Which makes me think that
a varicap or varactor insertion might show more effect on the frequency and some advantage possibly more interaction with the outer lattice having the original frequency.

Tnx, Joe