Possibly within Christmas. As soon as the prototypes are tested and fine tunings have been made into the final design the V4H GB will start.
Possibly within Christmas. As soon as the prototypes are tested and fine tunings have been made into the final design the V4H GB will start.
Sounds interesting, do you have any early guidance around power supply requirements? This would be great so I could potentially upgrade using the same PSU / chassis I build for the V4.
Ordered a couple prototypes of the semi-final layout of the dual-MOSFET 250W PeeCeeBee, the V4H!
I know I'm in the minority but I would prefer the Mosfets to be twisted around 90 degrees so they are at the top of the PCB and not completely underneath it.
Great work. Thanks for sharing.
My pleasure.
Yes that orientation does have its advantages and in the past I did release a couple layouts that allowed for it. Advantages of having them underboard outnumber other methods. I like it for its simplicity of mounting, heatsink sharing with VAS transistors and saving of space inside chassis.
Yes that orientation does have its advantages and in the past I did release a couple layouts that allowed for it. Advantages of having them underboard outnumber other methods. I like it for its simplicity of mounting, heatsink sharing with VAS transistors and saving of space inside chassis.
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I always use MakerBeam XL parts or similar, buying some heat-sinks which fit to the measurements and let make the top/bottom and front/back plates from a laser shop by my own drawings. Even if You would do it in V4A it´s cheaper then a case from Modu.
For example ...
If there is enough space for screw terminals, there is place for everything,
and everybody can choose the prefered (faston, screw, PCB terminal blocks, ...).
Meanwhile, the CRC PSU is almost ready.
It will have two independent fully discrete speaker protection circuits powered directly from the rails with equal loading on both rails and no need for a 12V PSU, smooth bypassing of rail resistors during high transient current demand, pads for both TO220 and TO247 diodes that can be mounted underboard and fixed on chassis floor requiring no additional heatsinking, accommodation for relays in different form factors with 10/20/30A contacts and MOSFET driving of relays if desired. There will be two variations, one for center tapped and another for split secondary transformers.
Ordering prototype with 10A relay pads, no fuse holders and center tap AC for error checking and tuning early next week.
This Christmas is going to be exciting for sure!
Edit: This is the PeeCeeBee PSU! Ambiguous name as usual.
It will have two independent fully discrete speaker protection circuits powered directly from the rails with equal loading on both rails and no need for a 12V PSU, smooth bypassing of rail resistors during high transient current demand, pads for both TO220 and TO247 diodes that can be mounted underboard and fixed on chassis floor requiring no additional heatsinking, accommodation for relays in different form factors with 10/20/30A contacts and MOSFET driving of relays if desired. There will be two variations, one for center tapped and another for split secondary transformers.
Ordering prototype with 10A relay pads, no fuse holders and center tap AC for error checking and tuning early next week.
This Christmas is going to be exciting for sure!
Edit: This is the PeeCeeBee PSU! Ambiguous name as usual.
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