DC bias current source MICROTEST 6225 (20A)

Price: Contact

Model 6225
Manufacturer MICROTEST
Power supply 88-264Vac
Weight 15 Kg
Size 356 x 147 x 497 mm
Condition Stocking
Warranty 12 months

DC bias current source MICROTEST 6225 (20A) from manufacturer MICROTEST provides a single output current of 20A.

I. Specifications of DC bias source MICROTEST 6225 (20A)

  • DC bias current source MICROTEST 6225 (20A) is designed for performing magnetic saturation current (Isat) and temperature rise current analysis (Irms) on inductors.
  • To conduct such analysis, it is necessary to purchase the system along with the 6632 Impedance Analyzer, which has a frequency response range of 100Hz-30MHz and a maximum output current of 20A.

Nguon-dong-dien-phan-cuc-dc-microtest-6225-20a

Main features of MICROTEST 6225:

  • Current and frequency graphic scanning analysis
  • Temperature-rising scan function can solve the problems of overheating a DUT to burn
  • DCR Measurement function
  • Long-term consecutive maximum power output
  • Interchangeable bi-direction current function
  • Frequency response
  • 100Hz-10MHz (With DC Bias Current 6223/6243), 100Hz-30MHz (With DC Bias Current 6225)
  • DC Bias Current Max.320A (6243)
  • Direct Handler interfaces control through LCR power meter.

Applications:

  • Components: High current power inductor, common mode choke, mini molding choke, high power components of EV charging connector
  • Electric Vehicles: Electric supercharger system.

II. Key features of DC bias current source MICROTEST 6225 (20A)

How DC bias current helps inductor testing?

  • Ferromagnetic materials (like iron) are composed of microscopic regions called magnetic domains. The stronger the external magnetic field H, the more the domains align, yielding a higher magnetic flux density B. Eventually, The magnetization remains nearly constant, and is said to have saturated. The domain structure at saturation depends on the temperature.

Dc-bias-current-source-microtest-6225-20a

What is magnetic saturation?

  • In electronic circuits, transformers and inductors with ferromagnetic cores operate nonlinearly when the current through them is large enough to drive their core materials into saturation. This means that their inductance and other properties vary with changes in drive current. In linear circuits this is usually considered an unwanted departure from ideal behavior.
  • Magnetic saturation current is called Isat, and the temperature rise current is called I rms. When the transformer and the inductor pass a large current in the actual circuit operation, the magnetic field of the magnetic core will produce magnetic saturation, which will cause the inductance characteristic to decline. Therefore, the R&D engineer will set the current value of the inductance reduction allowable range.

Dc-bias-current-source-microtest-6225-20a

Option 6632+6243 DC bias curretnt test system:

  • Supports magnetic saturation current analysis measurement function.

Dc-bias-current-source-microtest-6225-20a

Isat (Magnetic saturation current curve):

Dc-bias-current-source-microtest-6225-20a

Irms (Rated current curve):

Dc-bias-current-source-microtest-6225-20a

Control inductance:

  • Using a DC Bias current source to apply a 200A bias current to the inductor, the inductance decreased from 2.06983uH to 1.02845uH.

Dc-bias-current-source-microtest-6225-20a

Equivalent circuit analysis (Option):

  • It has seven different models, combine with different types of parameters ( R, L, C) help customers model the impedance versus frequency characteristics and self-resonant frequency (SRF).

Dc-bias-current-source-microtest-6225-20a

Magnetic Material Test Fixture (FX-0000C8):

  • Using the magnetic material test fixture for measuring of permeability of various toroidal cores or ferrite cores and electromagnetic shielding coating materials, 6632 built-in formula to directly calculate the permeability coefficient value μr.
Dc-bias-current-source-microtest-6225-20a Dc-bias-current-source-microtest-6225-20a

 

List mode:

  • 50 groups of list mode setting (Each group contains up to 15 steps).

Dc-bias-current-source-microtest-6225-20a

III. System selection MICROTEST 6225 DC bias source

DC Bias Current Source

Model

6225

DC Bias Current Max.

20A

units of the DC Bias

1

Power consumption

320W Max.

Output Current (unit)

20A

Option LCR Meter/Impedance Analyzer

6632

Option LCR Meter/Impedance Analyzer

Frequency Response

6632

100Hz-10MHz

Technical specifications of DC bias current source MICROTEST 6225 (20A)

DC Bias Current Source

6225

 Accuracy (6632)

0.000A-1.000A 1%+5mA

1.001A-5.000A 2%

5.001A-20.000A 3%

DCR Test

Constant power output

Current switch

/

 

System:

   Power Supply

Voltage:88-264Vac

Frequency:47-63Hz

  Environment

Temperature:10℃-40℃

Humidity:20-90%RH

Dimension

356x147x497 mm (W*H*D)/6225

  Weight

15 Kg (6225)

Display

Interface

RS-232、Handler

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