A simple shunt regulator, with TL431 and a transistor for increase the amount of current, for use with line and/or phono preamp. A real and working schematic
100mA may be sufficient, as in the schematic from Ketje, but some more up to 500mA would be better.
The usual 15 + 15V, and also indicate changes of values for 12 + 12V, if it can be. Thank you
The usual 15 + 15V, and also indicate changes of values for 12 + 12V, if it can be. Thank you
Thanks again.
I need complete schematics, my knowledge of Electronics does not allow me to design circuits, beyond the basics. The power supply is the most important part, and in Audio it needs to be the highest quality to be able to reproduce the music also with the highest quality, it is necessary to improve the design more than an amateur can do, so I ask for complete schemes.
I need complete schematics, my knowledge of Electronics does not allow me to design circuits, beyond the basics. The power supply is the most important part, and in Audio it needs to be the highest quality to be able to reproduce the music also with the highest quality, it is necessary to improve the design more than an amateur can do, so I ask for complete schemes.
I recently bought exactly this kit.
Unfortunately I had to buy bd139 as I got 4x bd140 and no 330 ohm, but otherwise the kit works.
I also need more current, but for that I have to replace the shunt transistor to darlingtons and also would need bigger heatsinks. Yesterday saw that someone soldered a bc560 directly onto the bd140 making a darlington. I may also use that idea.
Unfortunately I had to buy bd139 as I got 4x bd140 and no 330 ohm, but otherwise the kit works.
I also need more current, but for that I have to replace the shunt transistor to darlingtons and also would need bigger heatsinks. Yesterday saw that someone soldered a bc560 directly onto the bd140 making a darlington. I may also use that idea.
you'd have to pay for it, either buy paying for consultancy, a complete kit, or time from your own side (study). There is no such thing as free lunch.
The Chinese kit suggested in this thread is not so bad as a starter, and dirt cheap.
You should also check Salas shunt reg. You can see many pcb designs and if heat is not a problem 500mA can be achieved. But it was mentioned before.
Thanks mrWagner, your kit is the same as post Ketje in the post #21, for the price is a very good buy.
If you experiment of use a darlington work, please, post here
If you experiment of use a darlington work, please, post here
shame on you man ,if you'r not able to create or desing stuff , how can you ask to have it for free 😡 , where is your respect for people work !!!!
.
Hello fabrice63,
Since English is not my native language, perhaps there has been some misunderstanding.
I have not done a design consultation, nor have I asked anyone to work for me free, I have just asked if anyone knows any shunt regulator scheme that can post here, as Ketje has done. That is all.
If someone has any more schema, please post it here. Thanks
Since English is not my native language, perhaps there has been some misunderstanding.
I have not done a design consultation, nor have I asked anyone to work for me free, I have just asked if anyone knows any shunt regulator scheme that can post here, as Ketje has done. That is all.
If someone has any more schema, please post it here. Thanks
Yes, that's why the world goes into the worst possible destiny... Everybody wants money for everything. And the "top-managers" are laughing how good their structure works...🙂 A little too philosophical but true! Good luck!
I suppose you work for free , your boss is an happy man !!!!
it's not a matter of philosophy , it's a matter of RESPECT 🙄
.
- Status
- Not open for further replies.