Wilco Custom Fixture Build
Voltech offers many solutions to creating your own test fixture, including our new Voltech Custom Build designs which we will add to over the coming months.
Voltech have worked with fixture partner Wilco Control Service, based in Massachusetts, USA for over 10 years.
Wilco Control Services is a Voltech recommended global fixture manufacturer and has the capabilities and experience to create a fully customized fixture solution for your Voltech transformer tester, anywhere in the world.
Please see below examples of their work.; click images to zoom.
If you are interested in obtaining a quote for a customer fixture made to suit your transformer then please contact WILCO directly and they will help you.
For more information, please visit their website at http://www.wilcocontrol.com
1. Pinned Transformer Fixture Using True Kelvin Blades
Pictured fixture is for the Wurth SMPS 750811290.
The fixture block contains 2 rows of Kelvin blades at 5mm pitch, with a row spacing of 25mm.
The transformer shown uses 9 of the 12 pins, but as the fixture is fully wired, it can be re-used on ANY transformer with the same footprint.
The Kelvin blades allows compensation to remove any parasitic effects of the fixture.
The fixture also contains an additional spring probe used to test the core-to-winding isolation
Typical cost around - 400 USD.
Typical life time > 100,000 tests
Typical cost per test < 0.01 USD
4. 'Adjusto' fixtures
Wilco's "Adjusto" fixture adds even more flexibility and versatility to your fixturing.
These allow the row pitch to be altered on the fixture so that several bobbin widths can be accommodated by the same fixture.
The pictures show the testing of a 16 pin SMPS transformer, with 5mm pin pitch and 30mm row pitch (which also uses the 4mm banana sockets for Screen and Core hi-pot testing)
The same fixture is then used for a 10 pin PFC transformer, with 5mm pin pitch and 18mm row pitch.
All standard pitches - $650 USD
Typical life time > 100,000 tests
Typical cost per test < 0.01 USD
Specifications:
Adjustable Row Spacing: .300" (7.6mm) to 2.1" (53.34mm)
Available pitches:
WCS-0197 0.197" (5mm)
WCS-0200 0.200" (5.08mm)
WCS-0150 0.150" (3.81mm)
WCS-0100 0.100" (2.54mm)
WCS-098 (2.5mm)
Lead diameter .020" (0.5mm) to 0.060" (1.5mm)
Minimum lead length .160" (4mm)
Contact material BeCu gold over hard nickel
Custom versions also available.
Part # |
Description |
Quantity |
91-184 |
Starter Fixture Plate |
|
91-186 |
Universal 40 Socket Fixture |
|
|
|
|
78-026 |
AT Flying Lead Connection Post |
|
78-027 |
AT Grabber Clip Lead |
|
78-028 |
AT Kelvin Crocodile Clip Lead |
|
78-029 |
AT Non Kelvin Crocodile Clip Lead |
|
78-255 |
AT 4mm Safety Banana Connector |
|
78-030 |
AT Universal Lead Set |
|
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