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Shunt regulator +-15V | diyAudio
https://www.diyaudio.com/community/threads/shunt-regulator-15v.286425/
Shunt regulator +-15V. …. This is quite simple shunt regulator with very low output impedance. I designed two types of PCB, single shunt regulator and double shunt regulator (in case you what supply for two channels) Output current could be set up to 100 mA.
Shunt regulator +-15V | Page 7 | diyAudio
https://www.diyaudio.com/community/threads/shunt-regulator-15v.286425/page-7
Finally i finished shunt regulator. Just couldn*t find time to do it till the end. For fet i used 2n3189 one vas almost 10mA and one vas 12mA SG connected and measured IDSS so only that second one gets resistor set to 10mA.
Shunt regulator +-15V | Page 3 | diyAudio
https://www.diyaudio.com/community/threads/shunt-regulator-15v.286425/page-3
This shunt regulator circuit's output is a MOSFET source follower operating at about 100mA. Its output resistance is (1/gm) and, at 100 mA of drain current, gm is about 1 siemens. The open loop output impedance is therefore about 1 ohm. If closed loop output impedance must be 5 milliohms or less, the required gain is 200X or more.
Shunt regulator +-15V | Page 5 | diyAudio
https://www.diyaudio.com/community/threads/shunt-regulator-15v.286425/page-5
In a shunt regulator like dadod's here, the current source supplies a fixed and constant current. Some of it flows through the load, and all the rest is absorbed by the final shunt transistor. In dadod's post #1 schematic, the final shunt transistors are M4 and M2. He uses an IRF9640 in this position, which is rated for a maximum of 125 watts.
Shunt regulator +-15V | Page 4 | diyAudio
https://www.diyaudio.com/community/threads/shunt-regulator-15v.286425/page-4
The regulator in this thread is basically the SSLV topology and you don't have to go in much modification length to hit that 50kHz goal. Just use a BJT on output driven by a JFET source follower. It will go flat to 100kHz even. There is the BJT sans follower option in SSLV1.1 used for the BIB in its guide for years now.
Tube Based Voltage Regulators - Part 5
https://diyaudioprojects.com/mirror/members.aol.com/sbench/reg5.html
Shunt Regulators. Shunt regulators of the simple type are often used as part of series regulators. We used them in parts 1-4 of this series as VR tube references. They are the classic "zener" regulators. However, these have a limited output capability. The final part of this tube regulator series investigates not only the classic VR tube ...
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