Manufacturing or designing transformers or chokes?
Do they carry dc current or operate at high ac power?

This breakthrough bias supply design can guarantee transformer quality and reduce costs at the same time!

Avoid product reliability problems and provide complete confidence  to your customers by testing transformers at their operating point, not just with small LCR meter signals.

This revolutionary DC current bias supply performs seamlessly with most LCR meters (including Agilent and Wayne Kerr types) during design and or in production at high speed with Voltech AT series testers. .

The Voltech DC1000 is accurate, programmable and safe. With the DC1000 100% production testing is fast and automatic, providing guaranteed quality to your customers at a reduced overall cost!
     picture of DC1000 dc current bias supply

  • Alternative for Agilent and Wayne Kerr DC bias supplies
  • Fast Automatic Testing
  • Cost-effective 100% test, 100% Transformer Quality
See the DC1000 DC Bias Supply in action:

More information about the revolutionary DC1000 and how to get a totally no obligation, fully functional DC1000 current bias supply to try in your office and at your convenience!

Click here or email me now!
The DC1000 DC Current Bias Supply:
  • Applies bias current to chokes and transformers so that inductance can be tested under working conditions. (0-25A with 10mA resolution)
  • World’s first bias unit stackable to 250A! (10 units in parallel)
  • BREAKTHROUGH DESIGN - smaller, lighter, easy to connect and use than any other bias source.
  • Can be used stand-alone with almost any LCR meter and in production testing with the AT3600 and Ati transformer testers.
  • Replacement for Wayne Kerr 3265, Agilent HP42841A  and other manufacturer’s designs.
  • PC sweep software included for plotting inductance vs. DC bias current
See the DC1000 DC Bias Supply in the news:
What types of transformers and chokes is it for?
The DC1000 dc bias current supply will simplify the testing of:
  • Switched Mode Power Supply output chokes
  • Transformers and chokes in motor drives, UPS, green energy power conversion
  • Line frequency power inductors and filters.
  • Transformers and chokes in EMC filters
  • Audio Transformers
  • Transfomers in Power Amplifiers
  • Call us with your application!
 What is the DC1000?
The DC1000 is a special type of dc current source that is used to test particular types of inductors and chokes: those that carry a dc current when in use or operate at high ac power.
Inductors that operate with dc current are very common in power electronics of course, where they simultaneously block ac ripple and noise but conduct dc with very low impedance. To check that these inductors will work properly in use, they are tested to ensure that they act as an ac filter whilst conducting dc current at the same time.
Typically, the ac characteristics of the inductor are checked by measuring high-frequency ac parameters such as inductance, L and quality factor Q, when the load dc current is applied. To apply the dc current, which may be tens of amps, without effecting the ac measurement requires a special type of dc current source. The Voltech DC1000 is a dc current bias supply of this type, a modern 'electronic inductor' version that has a very small effect on the ac measurement and, uniquely, may be used with almost any LCR meter to make those measurements.
For ac power inductors and chokes, the versatile DC1000 will form the core of a simplified low-cost production test that guarantees 100% quality. Contact us for details.