Author Topic: Low ripple 12v fixed power supply... Good enough for you?  (Read 17166 times)

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Offline c4757p

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Re: Low ripple 12v fixed power supply... Good enough for you?
« Reply #25 on: April 16, 2013, 04:50:32 am »
Looks good  :-+
No longer active here - try the IRC channel if you just can't be without me :)
 

Offline ptricks

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Re: Low ripple 12v fixed power supply... Good enough for you?
« Reply #26 on: April 16, 2013, 12:28:19 pm »
It worked ! The device is running fine with 0.8A load on the +12V and -12V rails. Woohoo! No AC current left in the DC lines and I am almost certain there is absolutely no ripple on there ! Maybe it's time for a new scope eh!



Looking good.
When you measure ripple you need to put a load on the supply. A 60 watt  light bulb works well.
 

Offline robrenz

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Re: Low ripple 12v fixed power supply... Good enough for you?
« Reply #27 on: April 16, 2013, 12:41:02 pm »
It worked ! The device is running fine with 0.8A load on the +12V and -12V rails. Woohoo! No AC current left in the DC lines and I am almost certain there is absolutely no ripple on there ! Maybe it's time for a new scope eh!

Nice work  :-+  Like you implied, it might be more accurate to say "no measureable AC current or ripple with the equipment I have available".

Offline deephaven

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Re: Low ripple 12v fixed power supply... Good enough for you?
« Reply #28 on: April 16, 2013, 03:00:43 pm »
Please change the colour of your negative output wire - violet is good - otherwise I shall not be able to sleep worrying that you will think it is positive and blow something up!
 

Offline expertmax1Topic starter

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Re: Low ripple 12v fixed power supply... Good enough for you?
« Reply #29 on: April 18, 2013, 02:20:48 am »
Please change the colour of your negative output wire - violet is good - otherwise I shall not be able to sleep worrying that you will think it is positive and blow something up!

The leads are soldered on some chassis-mounted banana plugs and labeled accordingly. Good night btw!
 


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