SlewMaster Project Boards

[jkuetemann]

Development snapshot of a compact OPS

Here's a nifty little option to the bigger OPSs we have been concentrating on. It is a single pair of Lateral MOSFETs with an EF driver on a 3" x 4" board. it is a very stripped down implementation for lower power applications, say +/-50V max rails. Any interest? If there's interest I'll consider ordering some when the Spooky IPS is ready to order. Post your interest / thoughts on it please.

 

[Idefixes]

Hi jason may be you could verify if a To264 package could fit in (=> exicon or alffet double die) and eventually run V+ and V- tracks internally between two lat fet hol screw.

Marc

 

[jkuetemann]

OK, points taken. I'm not sure I have the room for the bigger devices, at least not if they are to stay completely under the board. It would also be required to place gate protection diodes onto the layout. I'll play with it to see, but this might just remain a TO-3P / TO-247 layout. I keep forgetting about the ALFET / Exicon products since they are virtually non-existant in North America (certainly the case here in Canada).

 

[thimios]

Here's a nifty little option to the bigger OPSs we have been concentrating on. It is a single pair of Lateral MOSFETs with an EF driver on a 3" x 4" board. it is a very stripped down implementation for lower power applications, say +/-50V max rails. Any interest? If there's interest I'll consider ordering some when the Spooky IPS is ready to order. Post your interest / thoughts on it please.

Is it on your plan to share files from this board for home etching?
Best regards.

 

[jkuetemann]

Hi thimios. I can, but I will do that in the main thread. This thread is for boards I plan on ordering and distributing as a group buy. I was just looking to judge interest in a design like the Mini so I can decide if something like that is worth ordering or not.

 

[Idefixes]

OK, points taken. I'm not sure I have the room for the bigger devices, at least not if they are to stay completely under the board. It would also be required to place gate protection diodes onto the layout. I'll play with it to see, but this might just remain a TO-3P / TO-247 layout. I keep forgetting about the ALFET / Exicon products since they are virtually non-existant in North America (certainly the case here in Canada).

As it's a "minor concern people" situation the To264 devices don't needs to be completly under pcb (if the whole can lay on a 100mm wide heatsink). As i watch you latest screen i think you more than enough space around may be you should displace a little Lat fet toward Driver section but not a lot and as i suggest lat run V+ and V- tracks before and not after the 2SK/2SJ Hole screw facing the middle line of the board.

Marc

 

[Idefixes]

Just a eagle layout attent from what i have in mind. Whole layout is Jason One.

Marc

 

[still4given]

If you're not going to try to fit on a 3" heatsink, why not just use the original layout? The whole reason Jason moved them under the board was for the narrow heatsink.

 

[Idefixes]

If you're not going to try to fit on a 3" heatsink, why not just use the original layout? The whole reason Jason moved them under the board was for the narrow heatsink.

Because of heat transfer i like better to have more centered Output devices instead to have them more near to heatsink outline but that nothing more than details..

Marc

 

[thimios]

Hi thimios. I can, but I will do that in the main thread. This thread is for boards I plan on ordering and distributing as a group buy. I was just looking to judge interest in a design like the Mini so I can decide if something like that is worth ordering or not.

Oh sorry ,my mistake ,i wish you the best.

 

[mrsavage]

Put me down for eight (8) of these PCB's

Here's a nifty little option to the bigger OPSs we have been concentrating on. It is a single pair of Lateral MOSFETs with an EF driver on a 3" x 4" board. it is a very stripped down implementation for lower power applications, say +/-50V max rails. Any interest? If there's interest I'll consider ordering some when the Spooky IPS is ready to order. Post your interest / thoughts on it please.

Put me down for eight (8) of these PCB's. A set of these would make a great
home theater setup with maybe one of the 3 or 5 OPS to power the subwoofer.

I would also like eight (8) of the Spooky IPS PCB's as well. Great work.

 

[still4given]

That's the spirit!

 

[jkuetemann]

And back on track...

As folks receive their packages I'd really appreciate the feedback that you got them safe and sound.

jwilhelm - 2x IPS (Wolverine), 2x 2P OPS - Delivered

scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped
xLoff - 2x IPS (CFA-XH), 2x 5P OPS - Shipped
gwrskien - 4x IPS (Wolverine), 2x 2P OPS, 2x 5P OPS - Shipped
Idefixes - 2x IPS (CFA-XH), 2x IPS (Wolverine), 2x 5P OPS - Shipped
Jim Hamley - 2x IPS Wolverine, 2x IPS (CFA-XH) - Shipped
mrsavage - 6x IPS (Wolverine) - Shipped
tjencks - 2x IPS (Symasui), 2x IPS (Wolverine) - Shipped
evanc - 2x IPS (Wolverine), 1x IPS (CFA-XH), 2x 5P OPS - Shipped

Bangla H - 2x IPS (CFA-XH), 2x IPS (Symasui), 2x 2P OPS - Paid, ready to ship, PM Sent (and email)
quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged and updated, PM sent ***Spooky IPS and Mini OPS are future releases not yet available***
arthur - 4x IPS (Wolverine) - Request Acknowledged, PM sent
buzzforb - 2x IPS (CFA-XH), 2x 5P OPS - Request Acknowledged, PM Sent
rohot01 - 2x IPS (Wolverine) - Request Acknowledged

 

[Idefixes]

Hi Jason,

I recevd the boards today. Speacial award for the packaging you do.

Thanks for all

Marc

 

[jkuetemann]

As folks receive their packages I'd really appreciate the feedback that you got them safe and sound. Thanks Marc for getting back to me, delivery to France was reasonably fast.

Idefixes - 2x IPS (CFA-XH), 2x IPS (Wolverine), 2x 5P OPS - Delivered

scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped
xLoff - 2x IPS (CFA-XH), 2x 5P OPS - Shipped
gwrskien - 4x IPS (Wolverine), 2x 2P OPS, 2x 5P OPS - Shipped
Jim Hamley - 2x IPS Wolverine, 2x IPS (CFA-XH) - Shipped
mrsavage - 6x IPS (Wolverine) - Shipped
tjencks - 2x IPS (Symasui), 2x IPS (Wolverine) - Shipped
evanc - 2x IPS (Wolverine), 1x IPS (CFA-XH), 2x 5P OPS - Shipped
arthur - 4x IPS (Wolverine) - Shipped

Bangla H - 2x IPS (CFA-XH), 2x IPS (Symasui), 2x 2P OPS - Paid, ready to ship, PM Sent (and email) requesting shipping address.
quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged and updated, PM sent ***Spooky IPS and Mini OPS are future releases not yet available***
buzzforb - 2x IPS (CFA-XH), 2x 5P OPS - Request Acknowledged, PM Sent
rohot01 - 2x IPS (Wolverine) - Request Acknowledged, PM Sent

 

[Idefixes]

Thanks Marc for getting back to me, delivery to France was reasonably fast.

Yes i was the first surprised from.

Marc

 

[gwrskien]

Hello,

please put me down for:

4x Spooky IPS
6x Mini OPS

Thank`s

Gisle

 

[jkuetemann]

OK, current status:

Jim Hamley - 2x IPS Wolverine, 2x IPS (CFA-XH) - Delivered

scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped
xLoff - 2x IPS (CFA-XH), 2x 5P OPS - Shipped
gwrskien - 4x IPS (Wolverine), 2x 2P OPS, 2x 5P OPS - Shipped
mrsavage - 6x IPS (Wolverine) - Shipped
tjencks - 2x IPS (Symasui), 2x IPS (Wolverine) - Shipped
evanc - 2x IPS (Wolverine), 1x IPS (CFA-XH), 2x 5P OPS - Shipped
arthur - 4x IPS (Wolverine) - Shipped

Bangla H - 2x IPS (CFA-XH), 2x IPS (Symasui), 2x 2P OPS - Paid, ready to ship, PM Sent (and email) requesting shipping address.
buzzforb - 2x IPS (CFA-XH), 2x 5P OPS - Request Acknowledged, PM Sent


Pre-order list for Spooky IPS and Mini OPS:

quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
mrsavage - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
gwrskien - 4x IPS (Spooky), 6x Mini OPS - Request Acknowledged

I've been working on Spooky and am finding it difficult since it is such a busy board (parts intensive). I will hopefully have something soon. The Mini OPS is basically set to go. I did decide to just go with accommodating the Renesas TO-3P devices, adding the required gate protection and trying to squeeze in the TO-264 package to accommodate the bigger MOSFETs was leading to too many layout compromises.

 

[jkuetemann]

Spooky Leach

Finally making some real progress. No designators / values as yet but this should be close to a final layout. Time to mark everything up and start going bug-eyed checking it over...

DC servos are nice to use but a royal PITA to wrap the rest of a layout around.

 

[tjencks]

I will take the following:

2 x spooky and
5 x mini-OPS