There is a mosfet version of the ops.
I think many of the OPS PCB's even have the screen printing for converting to
EF2 - mosfet.
OS
I think many of the OPS PCB's even have the screen printing for converting to
EF2 - mosfet.
OS
Do you or someone else has gerber files or sprint layout files for Kypton-C and Kypton-V2?
I only have for files for toner transfer for these 2 IPS. Kypton-ND and Spooky will be my next projects.
Ostripper's version is here Slewmaster - CFA vs. VFA "Rumble" Mine is double sided so not good for home etching.
need more power than your PC (or anyone's PC)? use this for free --->
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-RNm
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-RNm
No need to argue.
Thanks RNMarsh,
Real life exp.
Women are often superpositioned, most common example in superposition argument .
Where the woman's claim is true and false at the same time
If the truthfulness of the claim is begun to be investigated, then the claim collapses.
That is , it has never even happened.🙂
Also it's shown one dice roller plays and not plays lives in superposition and clearly, nowone
has seen him.
Thanks RNMarsh,
Real life exp.
Women are often superpositioned, most common example in superposition argument .
Where the woman's claim is true and false at the same time
If the truthfulness of the claim is begun to be investigated, then the claim collapses.
That is , it has never even happened.🙂
Also it's shown one dice roller plays and not plays lives in superposition and clearly, nowone
has seen him.
Not to forget Class D amplifiers for bass, in which they excel, with the advantage of clarity, efficiency, cost and heaviness. (Just an opinion ;-)
Welcome-back OStripper, we were many to worry about you during your long re-entry in the atmosphere with all communications cut. What about your bicycle ?
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OStripper, Many Thanks for your return and Outstanding contributions on this Thread that has reached 1000 pages.
How about a total tri-amp "system" 2 CFA'a and VFA how ever powered. What would you suggest for the crossover portion, either Digital or Analog?
Your attention to detail and vast knowledge of amps has awed me and educated me so much. Thanks for your clear and sharing thoughts on amps in your post. I wish there was some way to pay or otherwise compensate you for your time and expertise.
Thanks
How about a total tri-amp "system" 2 CFA'a and VFA how ever powered. What would you suggest for the crossover portion, either Digital or Analog?
Your attention to detail and vast knowledge of amps has awed me and educated me so much. Thanks for your clear and sharing thoughts on amps in your post. I wish there was some way to pay or otherwise compensate you for your time and expertise.
Thanks
Hear, hear. I would like to add my thanks for a thrilling and educational thread. Perhaps Ostripper's next amp project should be called TPV - 'The Pitchfork Villager'. One in the eye for The Establishment.
Nope , class G modulated AB OP stage and a super-pair based spooky (below) are
the next hurtles.
Output runs the pos/neg modulating steps. SOA is 2.5X 4 devices =<200w ,
8 OP devices = 500W . All at 70+ % efficiency.
Run it with SMPS's , cool .... but still a linear AB(Gmod).
Ahh , the "GmOD" amp.
OS
the next hurtles.
Output runs the pos/neg modulating steps. SOA is 2.5X 4 devices =<200w ,
8 OP devices = 500W . All at 70+ % efficiency.
Run it with SMPS's , cool .... but still a linear AB(Gmod).
Ahh , the "GmOD" amp.
OS
Attachments
Looks interesting but how does it work? Does a voltage droop at V+ cause current flow from the VPOS rail?
NO droops ??
It runs on 2 rail sets (60-0-60v) V6+V8 and 20-0-20V V10+V12.
When the main output at R50/55 reaches +/-15V , (V6 minus the zener voltage of D4 /D3) - (5.6v) ....
, the positive step devices Q16-15/24 conduct (a little) of the higher step voltage
to the amps main output trannies.
Q16-15 drop 1.2V , so D4's boost (of Q 15/24) is always about 4V more
than any transient waveform present at the output.
Over 20V , the OP device rails follow the waveform (+4V always) dynamically.
The OP devices also typically retain the SOA @ 20V. % of time modulated
above 20V can be factored into the SOA , but it is always MUCH higher than
straight AB running at 60V rails.
Hope this simplifies the concept , J.
Edit , so the rail will look like this (below).
Edit 2- if you were to run flat out a 110v p-p signal , SOA would also be split between the upper/lower
step devices. >2X the power from the same BJT's.
OS
Attachments
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You move fast , J ??
You see all those transient equations in the simulation ...
"pos/neg step" has to be faster than the fastest transient the input stage can
throw at it - (the step modulators).
Also , the R/C of those modulators also moderate the small switching glitches
of the power schottkey rectifiers. There is no "real" switching (like in a class G
low Rdson - mosfet - setup) , but the transition from the lower 20v supply to the modulated
higher one is not without glitches.
Wait till 2019. PS - glad it made sense ! 😀
OS
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OS....how about a Thread Re-Boot for POST 10,000. Do you have any ideas?
like... "It's all about the sound quality you experience in your room"
BEST SOUND WHEN: Each speaker has its own room-optimized crossover and load-optimized amplifier. So, put an active crossover for each amp channel into the amplifier chassis.
---New PCB and packaging design ideas optimzed for combining digital/analog active crossovers along with multiple amplifiers of different power and design into one chassis.
---Shared power supply and protection = common standards
---Output PCBs which can be easly converted for 1 full set or 2 partial sets of output transistors
---Diverse circuit driver PCBs which can be mounted on top of common output PCB. full or partial output set.
like... "It's all about the sound quality you experience in your room"
BEST SOUND WHEN: Each speaker has its own room-optimized crossover and load-optimized amplifier. So, put an active crossover for each amp channel into the amplifier chassis.
---New PCB and packaging design ideas optimzed for combining digital/analog active crossovers along with multiple amplifiers of different power and design into one chassis.
---Shared power supply and protection = common standards
---Output PCBs which can be easly converted for 1 full set or 2 partial sets of output transistors
---Diverse circuit driver PCBs which can be mounted on top of common output PCB. full or partial output set.
You should add resistor at colector of current mirror. According Bob Cordell's book, in symmetry topology with current mirror as LTP's load, the value of VAS current is unknown. It can work intermittent like Randy Sloan design.