Hi,
does anyone of you have the tentlabs shunt regulator schematic? I want to integrate the circuit in my next pcbs. Or if this one is not available, maybe another schematic of equivalent performing shuntreg?
regards
Alex
does anyone of you have the tentlabs shunt regulator schematic? I want to integrate the circuit in my next pcbs. Or if this one is not available, maybe another schematic of equivalent performing shuntreg?
regards
Alex
Is it allowed to copy that circuit ? Is it public domain stuff ?
I don't think so. Copying stuff from a designer without permission is not nice certainly when the man earns his income by designing and selling these devices.
I don't think so. Copying stuff from a designer without permission is not nice certainly when the man earns his income by designing and selling these devices.
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When i have asked the question i thought tent regs are like salas or Teddy. Open and Sold as other diy stuff but i wasnt sure.
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Shunt regulators are simple constructions, can't be copyrighted. Ideas are collected from free internet pictures and I built my own simulation, design, solved many problems ect. Why could't it be free if I wish so??
(an example: you can not bake a special bread because of an other bakery does it already.... should be funny or?)
(an example: you can not bake a special bread because of an other bakery does it already.... should be funny or?)
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It was about a Tent regulator so product- and brand specific. It is not about generic shunt regs. Your remark is out of context.
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Yes and no. The basics of my design is the Tentlabs regulator definitely. After pictures you can easily follow back the schematic... So the basic idea is not mine, but all others yes (understanding the circuit, simulation, modifying, PCB design, testig, ect...). So can I call it "Tentlabs clone"? 🙂
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I dont know how the tentreg is build up. But somehow there is some truth in zarandoks Statement. If their is no patent on the circuit it might not be protected by law. But this is also depending on your local lawsystem. So in this case i don't want the schematic anymore. I don't want to harm any copyright. But i think tent products are a bit overpriced so i also don't want to support it. There are planty of other solutions out there e.g. Ldo's. OpenSource Design is my fav.. So Im sorry Guido Tent.
Walt Jung and his article: A Universal Shunt Regulator for Audio Applications:
http://www.waltjung.org/PDFs/UnivReg_122714.pdf
http://www.waltjung.org/PDFs/UnivReg_122714.pdf
The evolution of Walt's and others' shunt regulator designs makes for some of the best Electronics-related reading ever.
You can learn a lot of deep Electronics just going through the history of it.
Walt is awesome.
Tentlabs are very similar to TwistedPear Placid regulators...
(see: http://www.twistedpearaudio.com/docs/power/placid_2_0_1_schem.pdf)
But Tentlabs can deliver only up to 100mA current, and has two OPA sections, one is for the shunt current setup (not only transistor with a trimmer but one PNP-transistor driver by an OPA with voltage reference like a diode and serial resistor).
(see: http://www.twistedpearaudio.com/docs/power/placid_2_0_1_schem.pdf)
But Tentlabs can deliver only up to 100mA current, and has two OPA sections, one is for the shunt current setup (not only transistor with a trimmer but one PNP-transistor driver by an OPA with voltage reference like a diode and serial resistor).
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Pretty sure which?
That your creation came before their's?
Or that you both arrived there independantly around the same time?
That your creation came before their's?
Or that you both arrived there independantly around the same time?
The TL431 is a shunt regulator, can be add a transistor for increase the amount of current.
Have anybody a schematic of this type?
Have anybody a schematic of this type?
Thanks Mr Guido. Yes I have made the same search, but can only find the general schematic, as this:
tl431.png Photo by ferds_calma | Photobucket
But no one real schematic with real values. As transistor some as BD139/BD140, for can be use with line preamp, phono preamp.
Anybody have a real schematic of this type?
tl431.png Photo by ferds_calma | Photobucket
But no one real schematic with real values. As transistor some as BD139/BD140, for can be use with line preamp, phono preamp.
Anybody have a real schematic of this type?
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