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Brake power supply

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(@j-koronowski)
Member Customer
Topic starter
 

I’m looking for brake power supply complete plan. All parts and wires on. 192v 

thanks

 
Posted : 06/07/2018 9:17 am
(@mach_1)
Member
 

Seems everyone uses a  Sportdevices  Model PWS3.2 Brake Power Supply and  + SCR & diode pack.

Not aware that there is a complete concise documtation woring diagram on how to couple up YourDyno hardware to  a eddy current retarder. But i not 100% sure.

 
Posted : 06/07/2018 10:46 am
(@mach_1)
Member
 

Seems everyone uses a  Sportdevices  Model PWS3.2 Brake Power Supply and  + SCR & diode pack.

Not aware that there is a complete concise documtation woring diagram on how to couple up YourDyno hardware to  a eddy current retarder. But i not 100% sure.

Would be nice if someone ( electronics wizard ) made one avaliable not having to use SD's hardware.

 
Posted : 06/07/2018 10:48 am
(@mach_1)
Member
 

The diagrams are simple block wiring diagram from a oppositions website thats all I'm  aware of.  Maybe Walter could shed some light on the topic as he has made a nice hub_dyno  and used Yourdyno hardware/software + SD power supply. He has a nice thread documented on his journey with his hub_dyno. 

 
Posted : 06/07/2018 10:51 am
(@mach_1)
Member
(@geir-kleven)
Member Customer
(@admin)
Member Admin
 

Hi,

I have ordered one of those for testing! BUT: Read the spec carefully, you need to multiply the max current by a factor 5 for inductive loads (like eddy brakes). I ordered the 150A version, price difference is not that big. 

It looks quite promising from the spec. You just need a diode bridge in addition, which would bring the total cost very low. 

 
Posted : 27/07/2018 11:16 pm
(@slappynuts)
Member
 

Anyone test this yet? I am getting ready to pull the trigger on power supply for my 96v Telma. It looks like the sport device will limit my TQ to about 75% because of the amperage required. 

 
Posted : 03/09/2018 2:36 pm
(@admin)
Member Admin
 

I got report from a guy that tested it and he could not make it work. He ordered the unit without feedback. Maybe the unit with feedback works. Anyone else has tested? 

 
Posted : 09/09/2018 6:34 pm
(@mach_1)
Member
 

How hard would it be to build a  purpose built Semikron SKPC200 circuit board ? 

 
Posted : 25/09/2018 1:36 pm
(@admin)
Member Admin
 

It is definitely doable. It is standard technology. But I would not go that way for only 1, then I would rather use components like Semikron or even SportDevices, which is plug and play. 

SportDevices by the way has a more powerful unit, slappynuts, you can contact them.

 
Posted : 25/09/2018 7:50 pm
(@mach_1)
Member
 

I didn't  mean restrict it to a specific model , the Semikron SKPC200 was just used as an example. 

All l know is pins 5 and 6 on the Semikron SKPC200 module must be some form of high speed opto_couple as far as the rest of the components triac's , , SCR's , diodes , resistors and capacitors l have no idea.

Josp on you website you have drawn a symbol wiring diagram and shown how to connect yourdyno V3 and V4 you left out the snubber circuit out the picture ? Any reason why but yet further down that page you mention using a snubber filter with a different power control model ?

 

 

 
Posted : 25/09/2018 10:04 pm
(@mach_1)
Member
 

What are pins 1, 2 and 3 on the Semikron SKPC200-240 phase angle power control module used for  ?

 

http://shop.semikron.com/out/media/ds/SEMIKRON_DataSheet_SKPC200_240_RoHS_Compliant_35733190.pdf

 
Posted : 01/10/2018 5:59 am
(@walter)
Member
 

I think problema come with amperage. check the specs you need with that Eddy brake.

Sportdevice sell power supply ready to wire and run.

 
Posted : 07/11/2018 12:44 pm
(@admin)
Member Admin
 

Toni,

I am sceptical, but it is always interesting to look at options.

It needs a 0-5V or PWM or similar control input, does it have one? Also, with some SCR controllers we see that they are not made for the speed we need. You want almost instantaneous response when you change the input when controlling eddy brakes. For most applications this is not necessary (heaters, light, even motors), so they are slow. It also needs to be able to drive an inductive load (like a motor), otherwise it will need additional components. It says in the text that it can drive "small motors", yet it is rated for 10,000W which for me would mean a BIG motor. So who knows what that means. 

But it is so cheap, please let use know the results if you test it. 

 

 
Posted : 07/11/2018 6:33 pm
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