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DC Bias Testing Made Simple

To guarantee the quality and performance of inductive components, they are always best tested under real-life conditions.

The DC1000A gives you a flexible test solution for both research and development, and outgoing product test.

If an inductor, transformer or choke is designed to carry a large current, then the AC inductance must be measured with this DC Bias current applied.
This then confirms that the core does not saturate under these bias currents, and still gives the designed inductance over its full operating range.

Until now, these measurements were made by an LCR meter connected via special interfacing to a DC current bias supply available only from the manufacturer of the LCR.

The unique DC1000A DC Bias source can be used with any precision LCR meter and connects simply into your existing test fixturing.
You can then instantly measure the saturation effect of constant DC bias current on the magnetic core material, thus confirming the quality of the transformer or inductor.
It can also be easily integrated with our AT Automatic Transformer Testers for fully comprehensive quality control.
Multiple DC1000A can be stacked in parallel to broaden the current range even further.

The Versatile DC1000A

The only DC Bias Source that works with any precision LCR meter

Test Core Saturation on Inductors, Chokes, Transformers with your LCR meter.
Test inductance by change of DC Bias current levels

Integrates with Voltech AT5600, AT3600 and ATi Testers

DC 0 - 250 Amps capability
with 10 sets DC1000A in parallel

Free Sweep Software
to simplify automation and data collection.
Quickly understand BH saturation curve response.

Small current error
, hence no effect on LCR measurements (Ls, Rx, Q, DCR etc.)

Precise contro
l of the low-noise DC current via the front panel / RS232

Fully protected
- Protects the User, UUT and LCR against back EMF

DC1000A 25A DC Bias Supply
DC1000A 25A DC Bias Supply
DC (A) Ls (uH)

Works with Any LCR Meter

The DC1000A Bias Source works in harmony with any LCR meter, including Agilent / Keysight, WK, Tonghui and Chroma, Hioki models
Simple connection to an LCR meter, and easy to add to any existing test setup

Integrates with Voltech AT5600, AT3600 and ATi Testers

Add DC Bias testing to your existing AT56/AT36/ATi station for a total solution.
The versatile DC1000 can be moved from one test station to another in minutes. Total test solution for ferrites, toroids, inductors and more...

Free Software Simplifies Automation

Quickly record and plot the inductance over a range of DC Bias currents.
Discover the response of your transformer or inductor to saturation current.

See the software video demo.

Stackable to 250 Amps

Find out how to use multiple DC1000s for enhanced test coverage. 

Deploy in Development or Production

Simplifies the understanding of core saturation characteristics of your BH curve during development design.
Find out why measuring inductance in the presence of DC BIAS current is not simple and how the DC1000 solves this problem.

Quotes, Specification and Information

Obtain instant on-line quotes to your email.
Smallest error in the LCR measurement of any DC Bias Source for confidence in the test results. Precise control of the low-noise DC current via the front panel or over RS232. Fully protected against inductor back-EMF and over compliance.

Any Questions ?

Please use the below form to ask any questions you may have on using the DC1000A to test your transformers, inductors and chokes to guarantee your quality at design stage or in on-going manufacturing.

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