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Old 13th February 2013, 11:25 AM   #81
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Tibi, not sure if I can track down an ESR meter. With regard to your method, however, shouldn't the use of the resistors not be needed if I have a constant current power supply? That's really all the resistors are doing in this case - insuring a small current to the caps during the forming process.
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Old 13th February 2013, 11:49 AM   #82
tvicol is offline tvicol  Romania
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Quote:
Originally Posted by tonyptony View Post
Tibi, not sure if I can track down an ESR meter. With regard to your method, however, shouldn't the use of the resistors not be needed if I have a constant current power supply? That's really all the resistors are doing in this case - insuring a small current to the caps during the forming process.
In fact resistor will act like a variable ccs. While the voltage is dropping the current will drop as well protecting the cap from overheating.

Regards,
Tibi
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Old 13th February 2013, 08:43 PM   #83
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Tibi
Can you please clarify how to split and where to power the various sections, motor 8.3v, digital 5v, and TentLabs oscillator If using "bobken" regulator for the digital section and a "pinkfish flea for the TentLabs oscillator?
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Old 14th February 2013, 08:43 AM   #84
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APK,

Document was updated to include these descriptions, version 1.6 - see page 8
https://docs.google.com/document/d/1...j9X4b7Q0/edit#

Regards,
Tibi
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Old 14th February 2013, 09:01 AM   #85
tvicol is offline tvicol  Romania
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Do you think that Shiga will have any chance in front of a $ 18000 player ?


Regards,
Tibi
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Old 14th February 2013, 09:18 AM   #86
tvicol is offline tvicol  Romania
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Well, we already done that.

Regards,
Tibi
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Old 19th February 2013, 12:06 PM   #87
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Quote:
Originally Posted by tvicol View Post
In fact resistor will act like a variable ccs. While the voltage is dropping the current will drop as well protecting the cap from overheating.

Regards,
Tibi
I have the power supply and will be doing the cap forming maybe tonight or tomorrow. The HP supply is a variable DC supply that can be set for constant voltage / constant current, but I'm not sure that's what I want to do.

I was thinking of setting up a cap with the 100KOhm resistor in series and then ramping up the voltage slowly until I get to 50 VDC. Or should I just set the voltage to 50 VDC, turn off the supply, hook everything up, and turn it back on?
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Old 19th February 2013, 12:15 PM   #88
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Set the voltage to 50V and let the cap to draw needed current trough 100K resistor.

Regards,
Tibi
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Old 21st February 2013, 09:03 AM   #89
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Quote:
Originally Posted by tvicol View Post
APK,

Document was updated to include these descriptions, version 1.6 - see page 8
https://docs.google.com/document/d/1...j9X4b7Q0/edit#

Regards,
Tibi
Ι ve been trying to see how to upgrade the psu parts.
Where would you reckon would be the best place to ground the separate Vs?
Which V powers the motor driver?

Thanks again
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Old 21st February 2013, 09:59 AM   #90
tvicol is offline tvicol  Romania
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Quote:
Originally Posted by dimkasta View Post
Ι ve been trying to see how to upgrade the psu parts.
Where would you reckon would be the best place to ground the separate Vs?
Which V powers the motor driver?

Thanks again
Dimkasta,

For separate Vs best place to ground is main board ground input - connector J5 Dout GND.

Motor driver need 8V. J6 connector is 8V.

Regards,
Tibi
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