Looks correct to me. The speaker outputs from the CCS PCB and Gain PCB will obviously need to be tied together off board before going to +SPKR.
The +28V output from the CCS board will connect to "D" or pin 3 on this boards MOSFET. I caught a little hint from ZM's build. Instead of putting a solderable mounting hole on the PCB. I connect directly with a crimp on ring connector directly on the MOSFET.
Regards,
Dan
Big thanks to Dan...My KiCad/PCB fabbing addiction is in full force. I went the 317/337 route as well, but put a 'mini' PS before it.
Attachments
Big thanks to Dan...My KiCad/PCB fabbing addiction is in full force. I went the 317/337 route as well, but put a 'mini' PS before it.
When I first inquired about using KiCAD I was warned about the steep learning curve. I found the YouTube tutorials (especially John's Basement) were a huge help and made getting use to KiCAD easy.
Regards,
Dan
You can try direct from jensen, email probably works best:
High performance audio transformers and ground isolators.
I purchased mine from the link below, great service from these guys:
Jensen Transformers JT-123-FLPCH Line Output Transformer, PCB Mount
High performance audio transformers and ground isolators.
I purchased mine from the link below, great service from these guys:
Jensen Transformers JT-123-FLPCH Line Output Transformer, PCB Mount
Rail voltage is 59.6 vdc. Where it's supposed to be 30v it's 1.7V.
For fun I connected a 4 ohm 500W resistor to the CCS 28 volt output alone to ground and it drew the same current (3.3A) and the current was adjustable via the pot.
The heatsink I have the mosfets mounted on is standalone and not connected to the ground of the power supply. Could that be it?
And no current flows at all until I apply about 6-7v bias to the second mosfet.
For fun I connected a 4 ohm 500W resistor to the CCS 28 volt output alone to ground and it drew the same current (3.3A) and the current was adjustable via the pot.
The heatsink I have the mosfets mounted on is standalone and not connected to the ground of the power supply. Could that be it?
And no current flows at all until I apply about 6-7v bias to the second mosfet.
Attachments
Last edited:
Mu part is having Iq set, whatever voltage across is
you need to set bias of lower pqart of amp, to set equal voltages ( 50% of Rail voltage) across each half of amp
read Singing Bush Tips 'n' Tricks thread
you need to set bias of lower pqart of amp, to set equal voltages ( 50% of Rail voltage) across each half of amp
read Singing Bush Tips 'n' Tricks thread
- Home
- Amplifiers
- Pass Labs
- 50w Single-Ended BAF2015 Schade Enabled