Hello,
I uploaded the LTSpice simulation on my Github repository.
Total RMS noise on the simulation: 293.8nV from 1 Hz to 100 KHz at an output of 51 Vdc. These are of course "theoretical" measurements due to the fact that in a simulation the components are "ideal".
I'm waiting for new PCB version 1.1.1.
Stay tuned.
Stef.
I uploaded the LTSpice simulation on my Github repository.
Total RMS noise on the simulation: 293.8nV from 1 Hz to 100 KHz at an output of 51 Vdc. These are of course "theoretical" measurements due to the fact that in a simulation the components are "ideal".
I'm waiting for new PCB version 1.1.1.
Stay tuned.
Stef.
Hi Moor,
I tried the circuit with a single TO-247 MOSFET per channel (irfp140n and irfp9140n) and without 0.47R. The noise is higher (400nV instead of 293.8nV with 2 MOSFETs). I would have to try other TO-247 models to see if it is because of these particular models or if it is general.
Stef.
I tried the circuit with a single TO-247 MOSFET per channel (irfp140n and irfp9140n) and without 0.47R. The noise is higher (400nV instead of 293.8nV with 2 MOSFETs). I would have to try other TO-247 models to see if it is because of these particular models or if it is general.
Stef.
- Home
- Amplifiers
- Power Supplies
- Q17 Sigma22 Regulated Ultrastable Ultralow Noise Linear Power Supply +-50/60Vcc