Only have one prototype at the moment and I kind of need it. Units are paid for and just making a final design revision to the heatsink. I might be inclined to lend it if you want to pay postage both ways and can have it back by a specific date.
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Prototype KMPKT Dynamo DC-12V
- Thread starter Kmpkt
- Start date
Thanks but I'm just gonna wait 
postage both ways is going to cost the price of the unit.
postage both ways is going to cost the price of the unit.
This is a great product, I completely missed this thread and I just skimmed through it. A few questions -- tho I'm sure some have been answered, so I apologize for repeating others.
1) Does this have all the certifications/licences/etc to be sold commercially in the US and Europe like the HDPlex, or is it more a DIY-type like G-Unique?
2) What DC connector(s) will it come with? Same as the HDPlex? Now that we have the Eurocom 780W "brick" with a GX-16 connector (I believe), how would I go about connecting that to the Dynamo?
3) Has the main unit been upgraded from 300W to 400W?
4) I like the modular nature of it. Can you theoretically daisy chain 2 Main units + one 160W? Don't see why you would, but just curious.
5) Is your initial intention to recommend pairing this with the Dell 330W and then look for a supplier of a larger brick? (hopefully sealed and not an external Flex like the Eurocom)
6) Would it be possible to include ribbon-style black cables instead, like on Silverstone/Corsair SFX units? They're significantly less bulky.
1) Does this have all the certifications/licences/etc to be sold commercially in the US and Europe like the HDPlex, or is it more a DIY-type like G-Unique?
2) What DC connector(s) will it come with? Same as the HDPlex? Now that we have the Eurocom 780W "brick" with a GX-16 connector (I believe), how would I go about connecting that to the Dynamo?
3) Has the main unit been upgraded from 300W to 400W?
4) I like the modular nature of it. Can you theoretically daisy chain 2 Main units + one 160W? Don't see why you would, but just curious.
5) Is your initial intention to recommend pairing this with the Dell 330W and then look for a supplier of a larger brick? (hopefully sealed and not an external Flex like the Eurocom
)6) Would it be possible to include ribbon-style black cables instead, like on Silverstone/Corsair SFX units? They're significantly less bulky.
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1.) The unit is certified for CE/RoHS/FCC
2.) The DC connectors for passthrough (ie. from DC-ATX to your motherboard) will be for 5.5mm OD and 7.r OD connectors. There will also be a 4 pin DIN (Kycon I believe) to match the AsRock Deskmini GTX/RX series units.
3.) The main unit is 360W. It uses slightly smaller inductors than the HDPlex 400W DC-ATX to reduce height hence the smaller rated wattage.
4.) Yes you can daisy-chain two Dynamos for a 720W solution and then a Dynamo Mini for a 920W solution.
5.) The true intention of this unit is to pair two HDPlex 300W AC-DC into a 600W AC-DC supply, but we haven't got the merging device finalized yet. In the meantime the unit should allow for a very nice pairing with the Dell 330W. hopefully leading to less coil whine as both units will be vastly under rating when compared to the 400W DC-ATX.
6) The cables will be all black, but not ribbon style unfortunately (high overhead to have these made in small quantities).
2.) The DC connectors for passthrough (ie. from DC-ATX to your motherboard) will be for 5.5mm OD and 7.r OD connectors. There will also be a 4 pin DIN (Kycon I believe) to match the AsRock Deskmini GTX/RX series units.
3.) The main unit is 360W. It uses slightly smaller inductors than the HDPlex 400W DC-ATX to reduce height hence the smaller rated wattage.
4.) Yes you can daisy-chain two Dynamos for a 720W solution and then a Dynamo Mini for a 920W solution.
5.) The true intention of this unit is to pair two HDPlex 300W AC-DC into a 600W AC-DC supply, but we haven't got the merging device finalized yet. In the meantime the unit should allow for a very nice pairing with the Dell 330W. hopefully leading to less coil whine as both units will be vastly under rating when compared to the 400W DC-ATX.
6) The cables will be all black, but not ribbon style unfortunately (high overhead to have these made in small quantities).
Thank you very much for the answers. I feel like you'd need a case specifically made to accommodate 2 300W AC-DC units, otherwise I can't think of a case where you can't fit an SFX PSU, but you can fit 2 x HDPlex 300W AC-DC + the Dynamo. The combined volume of the latter is well in excess of an SFX PSU, tho clearly the benefit is that it's modular and silent (barring coil whine). For me personally, the benefit would be having 520W of DC-DC power for use with a powerful external brick in a 4-4.5L case. Sadly, the only one available over 330W is that super expensive Eurocom unit which is less a power brick and more an external FlexATX PSU.
I totally agree that the best solution would be a larger brick and maybe if we're lucky we'll see some come out. One good candidate for this would be the Meanwell EPP/RPP 400 unit. Another option would be to purchase one of the G-Unique modified Dell bricks which I believe can push up to 500W @ 19V.
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So I've just received the first two prototypes and they work beautifully. Due to a miscommunication, the unit was built on a white PCB but will be black for the actual launch. The color scheme I was going for was gunmetal heatsink, silver caps (black isn't available) and black PCB. I feel the gunmetal tone makes the heatsink pop a little more than were it black.
Length of 120mm:
Width of 47mm:
Thickness of 20mm for bulk of the unit:
Thickness of 24mm over the inductors:
I've been running the unit light over the past 24 hours and it's working without any coil whine or sign of significant heat production. Planning to pick up my Zotac 1080 Mini tomorrow and stress test the unit (somewhat) aggressively.
Length of 120mm:
Width of 47mm:
Thickness of 20mm for bulk of the unit:
Thickness of 24mm over the inductors:
I've been running the unit light over the past 24 hours and it's working without any coil whine or sign of significant heat production. Planning to pick up my Zotac 1080 Mini tomorrow and stress test the unit (somewhat) aggressively.
Not sure how I managed to miss this, but I've just finished manufacturing the new DC-DC mounting panels for the LZ7, what mounting hole spacing does this unit have?
Here are the spec drawings. Let me know if you need me to manually measure anything and I'll be happy to do so. The holes for fixation are the large ones 26.5mm from one end and 16.4375 from the other.
Thanks for the info, unfortunately those mounting points aren't compatible with the standoff positions I'm providing, but I'm sure if people wanted to use this PSU a bit of Velcro or something similar could be used instead.Here are the spec drawings. Let me know if you need me to manually measure anything and I'll be happy to do so. The holes for fixation are the large ones 26.5mm from one end and 16.4375 from the other.
What type of DC-input connector is this unit using?
I am planning for it to come with a 7.4mm barrel connector like the HDPlex 400 and it will have a 6 pin Molex on board for input. It will come with output barrel connectors for 5.0mm, 7.4mm as well a a 4 pin DIN that matches that on the Micro STX board. I've mostly made this to enable really cool builds for the community than for any practical reason. Some that I will be trying to demo on launch include
- Dual AC-DC, one to the Dynamo Mini and one to the Dynamo running in sync via sync cable (500W+ passive if using two HDPlex 300W AC-DC)
- Micro STX/Thin ITX/NUC w/ GPU via M.2 to PCIe x4 adapter
- Dual AC-DC, one to the Dynamo Mini and one to the Dynamo running in sync via sync cable (500W+ passive if using two HDPlex 300W AC-DC)
- Micro STX/Thin ITX/NUC w/ GPU via M.2 to PCIe x4 adapter
This is looking pretty sweet. I have a 180W power supply in a more custom format that provides a 8-pin connector only, 3 pins are 12v. I was thinking if I could use this as a junction between the AC power supply and the PicoPSU and connect a 6-Pin GPU with the Dynamo. It would be much easier to manage than routing all the custom cables from the Pico.
Exactly the intended purpose here. The Dynamo is 16-24V wide input, so as long as it isn't a 12V Pico you'll be fine. If you use a non-HDPlex unit, you can attach the sync cable for the Dynamo to a fan header on the motherboard. As long a there is a 5V signal from the motherboard or the Pico, the GPU turning on and off will sync with the motherboard.
So is the dynamo mini pretty much a 160 hdplex dc-atx? Any difference whatsoever? Apart from heatsink desigb.
Just the heatsink, nothing else so far as I am aware. When Larry moved from the V1 160W with the screw based connectors to V2 which is the one we have now, I essentially co-developed with him to meet my needs/wants like 4 pin to 8 pin connectors, 4 pin SATA connector and the sync cable. We just made them all the same because it is so much cheaper for us to do one board that meets all of our needs than do a second board and set of tooling. This is why I have been saying that people with a current-gem 160W DC-ATX can use it with big Dynamo and have full functionality.
So this will be great for my setup. I had planned on a 1300x and a 1060 which I have. But I also got a great deal on a 1070 and 1600x cause I get addicted to late night ebay bidding, so I'll probably sell the 1300x and 1060. This will make my kmpkt mini 160 need some added help. What is the time frame on availability of this wonderful product?
The Dynamo Minis are already in warehouse and the Dynamos are in the process of being redone on black PCBs as we had a miscommunication on them the first time and they ended up on white PCBs (I'm picky, I know). I am hopeful to see them ready to ship in mid to late November.
I love the look of the dynamo mini, I wish there was a way to display the heatsink. When I got it I was expecting HDplex on it, was a nice surprise.
I appreciate the feedback a great deal. I was really aiming for something aesthetically pleasing with the Dynamo units as well as usefully functional.
Thanks to @Dubnobass I went straight to hdplex and order one ^^
Larry confirmed it'll come with kmpkt's heatsink. Looking forward to it!
Larry confirmed it'll come with kmpkt's heatsink. Looking forward to it!
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