Sorry, sorry
MOD 1415#1: Connect the wire going to U6 pin 3 to U4 pin 4, being the only connection to U4 pin 4
Should have been
MOD 1415#1: Connect the wire going to U6 pin 3 to U4 pin 9, being the only connection to U4 pin 9
I must double check next time.
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Thanks
Now please make the mods in post # 1382
EricThen do the mods in my previous post, use RV7 to adjust to the center frequency.
Then you should see:
1. The pulse train at U4 pin 13
2. steady logic "0" at U8 pin 4
3. no light in D6
And this should be maintained, even though you dial RV7.
Please replace R15 to 4K7, and connect to U7 pin 11 instead of U8 pin 4.
Now D6 should indicate locked OK.
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As stated above:Originally posted by bussi04 View Post@tecstatic
U8 pin 5 reconnected to U8 pin 6
Pin 2 of RV7 connected to VCC
U2 in circuit again
Set center frequency to 5600 hz
not near resonance frequency there is stability in signal at pin 13 of U4.
question:
voltage at C11:
- the less pF, the more rectangular signal shape!
- D5 forces C11 to be loaded immediatly to 90% of high value at high state at pin3 of U7 and then there is a diagonal voltage increase for 10 more percent of high value.
there is no voltage integration because of D5.
why?
bussi04
So at 5600Hz we need a time constant larger than 200us. for R14 * C11.The purpose of D5, R14, C11 is to detect the pulse train to a permanent logic "1".
I do not understand, please clarify. Stable "0", "1", pulse train ?not near resonance frequency there is stability in signal at pin 13 of U4.
Eric
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@tecstaticOriginally posted by Tecstatic View PostGood
I assume this pulsing stops if not near the "resonance" frequency ?
If it disappears, then we have a lock indication. In that case remove the VCC connection to U8 pin 5.
Maybe for test only, you need to change C11 to 22n or 33n or 47n.
The purpose of D5, R14, C11 is to detect the pulse train to a permanent logic "1".
Eric
U8 pin 5 reconnected to U8 pin 6
Pin 2 of RV7 connected to VCC
U2 in circuit again
Set center frequency to 5600 hz
not near resonance frequency there is stability in signal at pin 13 of U4.
question:
voltage at C11:
- the less pF, the more rectangular signal shape!
- D5 forces C11 to be loaded immediatly to 90% of high value at high state at pin3 of U7 and then there is a diagonal voltage increase for 10 more percent of high value.
there is no voltage integration because of D5.
why?
bussi04
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H2O, SuperOriginally posted by h20power View PostHi All,
Now I just ran a search on the wavelengths of the arura lights to refesh my memory on the different wavelengths involved. 630-634 nm for first/ second level oxygen, 557.1 nm for third and fourth with 410.5 nm aiding the fourth energy level. Nitrogen is around 390 nm, 395 nm, and 470 nm since I am not looking to do anything with the nitrogen those wavelengths were not chosen. Something else interesting I found was the ionizations occur perpendicular to the electromagnetic field and for the gas processor that is in the direction of the air flow towards the intake system due to it being a capacitor and the field lines are always perpendicular to a capacitors surfaces. That was just an interesting find and shows that this higher form of energy and the electrostatic form of energy are both being used in the Gas Processor.
h2opower.
Do you have at hand the frequencies of mercury ?
I once saw a site where I could look all this up, but now I can't remember where.
I also saw somewhere that Stan had several GPs in series, maybe he raised the ionization level in each of the GPs.
Eric
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Sorry my typo, you did what I wanted.
"Switching frequency > 5500 hz >> U4 pin 13 high"
do you mean
"Switching frequency < 5500 hz >> U4 pin 13 high" ?
If yes, the phase comparator works.
Then do the mods in my previous post, use RV7 to adjust to the center freuency.
Then you should see:
1. The pulse train at U4 pin 13
2. steady logic "0" at U8 pin 4
3. no light in D6
And this should be maintained, even though you dial RV7.
Please replace R15 to 4K7, and connect to U7 pin 11 instead of U8 pin 4.
Now D6 should indicate locked OK.
Eric
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@tecstatic
ok, C10 behaviour:
less then 5300 hz C10 voltage is high, above 5300 hz it switches to low.
now there is a lock in condition.
bussi04
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GoodOriginally posted by bussi04 View Postnow there is a switching behaviour at pin 13 of u4 at 5380 hz.
I assume this pulsing stops if not near the "resonance" frequency ?
If it disappears, then we have a lock indication. In that case remove the VCC connection to U8 pin 5.
Maybe for test only, you need to change C11 to 22n or 33n or 47n.
The purpose of D5, R14, C11 is to detect the pulse train to a permanent logic "1".
Eric
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now there is a switching behaviour at pin 13 of u4 at 5380 hz.Originally posted by bussi04 View Post@tecstatic
to get control to pin7 of RV7 to switch it to VCC I pulled out U2. So I also lost the OPAMP for signal feedback - sorry.
I put it in and repeat the test.
bussi04
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shall I set the center frequency to 5800 hz?Originally posted by Tecstatic View PostGood, the set the center frequency to 5800Hz.
Here we get punished, because we don't have the same resonance frequency at the primary and secondary of the transformer. But this is only a test circuit so we don't care if we hit the resonance, we just want to see the 4046 at work OK.
This is also a hint for the final VIC, here we can not accept the lock on a non-resonant frequency.
Alternatively you could try tuning the primary also, whatever is most easy for you.
What about the other questions ?
Eric
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done, center frequency is 5800 hz.Last edited by bussi04; 01-21-2010, 10:39 PM.
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@tecstaticOriginally posted by Tecstatic View PostOne more thing.
I assume you have a 2 channel oscilloscope.
Connect probes to U4 pin 3 and 14, and watch the signals simultaneously on the scope.
Turn RV7 so the frequency varies around the resonant frequency. You should be able to see a phase shift, if not, then the 4046 can not either.
Have you at any point in time seen LED D6 on ?
Eric
yes, u4 pin 3 and 14 are most out of phase at 1800 hz, at resonance they are out of phase but not so much as at 1800 hz. they are in phase at 5800 hz.
bussi04
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Forget about D5 R14 C11, We need to test the ability to lock in.
Connect U8 pin5 to VCC for testing without the switchover circuit in operation.
I think it will be wise to keep a log of the modifications you make. Note the permanent corrections and also the temporary test ones.
We need to see if the wires at P3 P4 is connected right.
With the RV7 pin 2 connected to VCC, have the frequency below Fres, your C10 should be close to 5V.
With the RV7 pin 2 connected to VCC, have the frequency above Fres, your C10 should be close to 0V.
If not, revert the wires at P3 P4 test again and let me hear your findings.
Please check for my postings at least every 10 minutes, lets keep a tight feedback and finish this tonight.
Eric
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@tecstaticOriginally posted by Tecstatic View PostOne more thing.
I assume you have a 2 channel oscilloscope.
Connect probes to U4 pin 3 and 14, and watch the signals simultaneously on the scope.
Turn RV7 so the frequency varies around the resonant frequency. You should be able to see a phase shift, if not, then the 4046 can not either.
Have you at any point in time seen LED D6 on ?
Eric
when I manually raise voltage at pin 9 from 4045 hz on (resonance frequency) at pin 3 there are positive spikes at pin 4 of U8 and D6 gets (pulsed) on. raising frequency to 5800 hz elongates the on-phase at pin 4 and D6 gets brighter.
yes I have 2 oscilloscopes with each 2 channels.
now I do the measurement.
bussi04Last edited by bussi04; 01-21-2010, 09:37 PM.
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One more thing.
I assume you have a 2 channel oscilloscope.
Connect probes to U4 pin 3 and 14, and watch the signals simultaneously on the scope.
Turn RV7 so the frequency varies around the resonant frequency. You should be able to see a phase shift, if not, then the 4046 can not either.
Have you at any point in time seen LED D6 on ?
Eric
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