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DM 659
전화문의 : 031-429-5315
메일문의 : sales@analogtest.co.kr


DM 659
WARD VOLTAGE MEASURING DEVICE





Features

  • Measurements of the output and transfer characteristics of IGBTs
  • Current pulse up to 5 kA
  • Selectable energy of the current pulse
  • Pulse width (trapezium) adjustable in a range from 100 up to 500 μs
  • Single measurements and recording of characteristic curves
  • Integrated gate current source from 1 to 500 mA and voltage source from 0 to 20 V


Description

The ward voltage measuring device DM 659 is developed the measurement of the ward voltage of power semiconductors and of the output and transfer characteristics of IGBTs.
The DM 659 is designed as well manual usage as integration into automated test equipment.
In measuring the ward voltage of a semiconductor, the test device is operated with a load current pulse of up to 5000 A.
The pulse width is adjustable in a range from 100 to 500 μs.
The testing current is allocated by an internal capacitor bank.
To recharge this unit after every measurement a recovery period of 250 ms max.
is required, depending on the quantity of the testing current.
Configuring the measurement system via serial interface or external control the transmitted data will be displayed and used the measurement.
The automatic mode enables the generation of characteristic curves.
Theree the system perms several measurements at increasing current values, starting at a selected base value.
The DM 659 has software to record up to 16 curves in one diagram and each curve can be denoted.
Furthermore the curves can be stored or printed as single data arrays.
They also can be exported into an Excel file further application.


Applications

  • Measuring of the ward voltage of power semiconductors.
  • research of behavioural characteristics of power semiconductors during development and in design verification.
  • Short measurement times quality control in production settings.


Technical Data

DM 659

Parameter Settings Load current IL

Current range

10 to 5000 A

Resolution

0.1 A at 10 ... 199.9 A / 1 A at 200 … 5000 A

Accuracy

0.5 % v. selected value ± 0.5 A

Maximum output voltage

30 V (Error message when limit value exceeded)

Load time tL

Range

100 … 500 μs

Accuracy

± 5 μs

Gate current IG

Range

1 … 500 mA

Accuracy

± 5 %

Gate voltage VG

Range

1.0 … 20.0 V

Measurements via DM 659 ward voltage measurement VF

Measurement range

20 V

Accuracy

1 mV

Measurement tolerance

0.5 % of measurement value ± 1 Digit

Analogue Output ward Voltage VF

Voltage output range

0 … 10 V

Factor

preset 2 V / V

Load Current IL

Voltage output range

0 … 10 V

Factor

at 10 … 200 A : 25 A / V

at 200.1 … 800 A: 100 A / V

at 800.1 … 5000 A: 500 A / V

Measurements with Data Acquisition to PC ward voltage measurement VF

Measurement range

2 / 4/ 10 / 20 V (manual selection)

Resolution

1 / 2048 of selected measurement range

Measurement tolerance

0.5 % of measurement value ± 1 Digit

ward current measurement IF

Measurement range

250 / 1000 / 5000 A

Resolution

1 / 2048 of measurement range

Measurement tolerance

0.5 % of measurement value ± 1 Digit

Miscellaneous

Power supply

230 V~ 50/60 Hz maximum 650 W

Power (Main) fuse

0.8 AT

Declaration of Conmity

CE

Dimensions (W x H x D)

510 x 420 x 510 [mm] (19” 9HE)

Weight

Approx. 30 kg



 
  Copyright 1999 - 2005 Morning Special
 
  전화번호 : 031-429-5315 / 팩스번호 : 031-624-4315
메일문의 : sales@analogtest.co.kr
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