Hello,
I am very new at this and am about to build my first power supply.
It has taken me months to get to this point, so if anyone can double check my selections before I order the parts, I would really appreciate it!
I am reasonably confident in the values I have selected for each component, but unsure of the "type" and "brand" of each.
Amp board is LJM 20.5 and I was going to feed it ~50 volts.
PSU board is Prasi's COMPT-CRC,
Amp will be dual mono with two of these boards and two Antek 36V 300VA AN-3236 toroidal transformers (overkill).
Parts list,
Link to shared cart,
Link to Digikey Cart
The bulk of what I have been reading says the CRC is not needed in a Class AB amp, so the CRC resistor "positions" on the boards will be shorted.
CS and CX are the stock 0.01uf and 0.15uf values suggested by Mark Johnson and RS was calculated with Marks Quasimodo jig.
RB Bleeder resistor value was arrived at using this spreadsheet,
https://www.diyaudio.com/forums/par...der-calculator-spreadsheet-2.html#post1171860
LED resistor value was determined using the calculator on Digikey,
Blocked
I also have a ground loop question, The board designer (Prasi) recommends a chassis connection via a disconnect network,
Should each PSU board have it's own disconnect network connected to the common star ground, or should both PSU's be connected to the same disconnect network. My guess is one per board.
Do my choices of parts and values seem reasonable?
Any mistakes or suggestions?
Thank you,
David.
I am very new at this and am about to build my first power supply.
It has taken me months to get to this point, so if anyone can double check my selections before I order the parts, I would really appreciate it!
I am reasonably confident in the values I have selected for each component, but unsure of the "type" and "brand" of each.
Amp board is LJM 20.5 and I was going to feed it ~50 volts.
PSU board is Prasi's COMPT-CRC,
Amp will be dual mono with two of these boards and two Antek 36V 300VA AN-3236 toroidal transformers (overkill).
Parts list,
Link to shared cart,
Link to Digikey Cart
The bulk of what I have been reading says the CRC is not needed in a Class AB amp, so the CRC resistor "positions" on the boards will be shorted.
CS and CX are the stock 0.01uf and 0.15uf values suggested by Mark Johnson and RS was calculated with Marks Quasimodo jig.
RB Bleeder resistor value was arrived at using this spreadsheet,
https://www.diyaudio.com/forums/par...der-calculator-spreadsheet-2.html#post1171860
LED resistor value was determined using the calculator on Digikey,
Blocked
I also have a ground loop question, The board designer (Prasi) recommends a chassis connection via a disconnect network,
Should each PSU board have it's own disconnect network connected to the common star ground, or should both PSU's be connected to the same disconnect network. My guess is one per board.
Do my choices of parts and values seem reasonable?
Any mistakes or suggestions?
Thank you,
David.