ENX2020C HTRB high temperature reverse bias test system

1 Brief description of the equipment The
IGBT high voltage reverse bias test is a main test method for applying reverse bias voltage to the IGBT under a certain temperature condition (125°C) and according to the specified time and voltage, thereby performing quality inspection and durability evaluation of the device .
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ENX2020C test system is specially designed for high temperature reverse bias test of IGBT module, and it is an important equipment for IGBT factory inspection. The test system can match the corresponding IGBT devices with adapters. The test standard complies with MIL-STD-750, IEC60747. This equipment adopts computer automatic control system, background software real-time monitoring and automatic processing of target data. It has the advantages of high test accuracy, convenient operation and high efficiency.
This system is suitable for high temperature reverse bias testing of medium and low voltage IGBT module products, and the maximum test voltage is 3.5kV. It can realize the detection of IGBT device collector-emitter voltage Vce, collector-emitter leakage current Ices, case temperature Tc, junction temperature Tj, time and other parameters, automatically complete the test according to the program setting, record and save the test data And you can browse and export at any time, the system is safe, reliable, and stable.
2 Summary of the test bench
2.1 Rated parameters of the electrical system
A. Input voltage: 380VAC;
B. Output voltage: 0-12kVDC;
C. Output current: 0-100mA, precision 10nA;
D. Working relative humidity: air humidity <50% (strict requirements for high-pressure equipment);
E. Environment temperature: 0-50℃.
2.2 The main system and its configuration The
main configuration is as follows, the actual configuration needs to meet the requirements of the bidding product process and capacity.
1. Host_1_set;
2．High-voltage DC power supply;
3. Temperature control system;
4. Electric parameter (leakage current, voltage) detection device;
5．1 set of industrial computer;
Windows7 operating system, friendly user operation interface, man-machine dialogue, window operation interface, and ensure long-time work without failure.
6. The host is equipped with 3-color LED warning lights, smoke alarms, emergency stop switches, and safety interlocks.
7.6 External leads and high voltage protection circuit of the station.