DC Bias Current Test System - Molded Power Inductor Test

MICROTEST DC Bias current test system is an integration test system of 6632 LCR Meter or impedance analyzer and 6210, 6220, 6240 Bias Current Source.


MICROTEST 6210, 6220, 6240 series bias current source output can be controlled by 6632 LCR Meter or impedance analyzer directly. Up to 6 units of the 6210/6220 Bias Current Source can be stack with 6632, the maximum voltage of 20Vdc; up to 8 units of 6240 Bias Current Source can be stack with 6632, the maximum voltage of 12Vdc. MICROTEST maximum current can be as high as 320A. Frequency response up to 3MHz. The 6632 offers current graphical scan to inspect I sat and I rms. Analyze the curve of temperature change and saturation of inductor to see if it would burnout due to the temperature. List mode function, customers may select multiple parameters by 1 setting, all the test results are shown at the same time.


The age of 5G communication is coming; molding choke is wildly used in smart phone. Apple, Samsung, and Huawei……etc. use molding choke to fulfill high frequency high current. Compare with traditional inductors, molding choke has better anti-interference, smaller, better installation, and support higher frequency(5MHz). Therefore, the request of inductors from the engineers are high current efficiency and low internal resistance.


MICROTEST DC Bias current test system is the best system to analyze the magnetic saturation ( I sat) of the iron core when the inductor is at high current testing, and temperature rise ( I rms) cause inductance burned out.

About us

MICROTEST CORPORATION has dedicated itself to the high precision testing and auto measuring fields for more than 22 years. We have instruments and equipment developed independently including LCR Meter, Impedance Analyzer, Transformer Tester, Safety/Reliability Tester, Comprehensive transformer testing system, Cable/Harness Tester, Motor Tester, Auto Testing Equipment, PCB Testing Instrument and so on. In addition to the quality testing equipment of high standard, we provide a total test solution and complete customized service to meet every test requirement of our customer through design of the products, and the technique and quality are highly recognized by our partners. We are committed to the satisfaction of our customers with our leading R&D capabilities, and intensive sales and aftermarket service systems. We not only rank as an ISO-9001 certified company, but also hold tens of patents for our products. We have won many R&D and innovation awards in Taiwan and received industry-wide recognition of the techniques and achievements that we made in past years. In addition to the quality product testing equipment and comprehensive service, we provide our customers with the real-time support and service to meet their requirements in different situations. If you need more information, please visit our official website: