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Test Core Saturation with your LCR

Quickly Deploy the DC1000A DC Current Bias Supply with your LCR meter for enhanced test coverage on Inductors, Chokes, Transformers

Compatible with any LCR meter, including Agilent, Keysight, Wayne Kerr, Tonghui, Hioki and Chroma

If you are in development and need to understand DC Bias current saturation response at the design stage, or testing in production needs to confirm and maintain quality of output, the patent pending DC1000A gives you test under real life conditions.

The Unique DC1000A gives you :

- Best accuracy for LCR measurement - Patented technology minimizes effect on LCR.
- Fast set up. Easy to connect and operate - be up and running in minutes.
- Manual operation or remote RS232 programming - 0-25 Amps Current.
- Multiple units are stackable to 250 Amps DC
- Rapid measurement of your BH saturation curve response.
- Free Sweep Software to automate Bias and LCR sweeps for most popular LCRs.
- Online support and Technical notes to get you started.

Ideal for testing Inductance or Impedance on any magnetic component.
Test for saturation under real life DC Bias current without compromise.
Suitable for Toroids, Ferrites, Chokes, Inductors, Iron Core Laminates, SMPS, and more.

Compatibility with any LCR meter, including Agilent 4284A, Keysight E4980AL, Wayne Kerr 3255, 3260, Chroma 11021, 11022, 1061, 1062, 1075, Tonghui TH2830, TH 2831, TH2832, Hioki M3536...

DC1A performing sweep as Keysight E4980AL measures Ls

DC (A) Ls (uH)

Test Example - Inductor DC Bias Sweep using Keysight LCR

In this example, we have tested a Murata inductor for saturation.
(P/N 1430430C - Inductor, 300 µH, 3 A, 0.14 ohm, ± 10%).

The saturation measurements were performed using a Keysight E4980AL LCR meter to record the series inductance (at 1 kHz, 0.1 V AC),  as we apply a varying DC Bias current provided by the DC1000A. (0-10A in 0.5 Amp steps)

An earth lead was used to connect the LCR and DC for best noise reduction (see picture) and the DC and LCR were both connected across the inductor (see below)

DC1000 + LCR + UUT
DC1000 + LCR + UUT
UUT connections
UUT connections

The results were recorded and plotted.

We can see that the inductance holds up well under DC bias current, and does not saturate until above the published specified 3 Amps, and in fact only exceeds spec at around 5 Amps

results of DC Amps sweep showing core response
results of DC Amps sweep showing core response

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.