IGBT (Insulated Gate Bipolar Transistor) Power Semiconductor Testing Solution
IGBT, an innovative power semiconductor device, serves as a field-controllable self-latching switch, combining the high-speed performance of a power MOSFET with the low resistance of a bipolar device. It features high input impedance, low power consumption under voltage control, a simple control circuit, high voltage tolerance, and the ability to handle large currents. IGBT stands as the pivotal component for energy conversion and transmission, seamlessly integrating the strengths of power MOSFETs and bipolar devices to optimize power management in various applications.
On a global scale, cutting-edge IGBT technology and patents have primarily been controlled by companies in Europe and the United States. However, in recent years, domestic IGBT technology in China has rapidly advanced, gradually breaking the monopoly held by foreign manufacturers. Currently, IGBT stands as a strategic emerging industry in China, finding widespread applications in electric vehicles, new energy equipment, rail transportation, smart grids, aerospace, and more.
The development of IGBT chips, module packaging, and module applications necessitates high-performance testing equipment to ensure product quality. Xuan'an Technology Power delves into the dynamic and static characteristics testing of IGBT, enhancing product performance, integrating various programming systems, and redefining power supply functionality to provide a more convenient and intelligent experience in IGBT testing.
Dynamic Characteristics of IGBT
The dynamic characteristics of IGBT primarily refer to its turn-on and turn-off processes, involving the repetitive transition of IGBT between conducting and non-conducting states. Testing these dynamic characteristics includes evaluating parameters such as turn-on and turn-off delay times, rise times, fall times, etc. This analysis provides insights into the performance of IGBT during these crucial switching processes.
IGBT has three terminals: C (Collector), G (Gate), and E (Emitter). Typically, a voltage in the range of -15V to +15V is applied between G and E to drive the IGBT, controlling its conduction or non-conduction by alternating positive and negative voltages.
Static Characteristics
The static characteristics of IGBT encompass voltage-current (V-I) characteristics and transfer characteristics. These tests usually involve maintaining a stable electrical environment for an extended period. The maximum gate-source voltage is limited by the maximum collector current, with an optimal value typically around 15V.
IGBTs are categorized based on voltage levels, typically ranging from 300V, 600V, 900V, 1200V, 1700V, 3300V, 6500V, etc. For electric vehicle IGBT modules, common models include those with a voltage of 650V and a current of 550A. Testing for these modules involves rated value tests, characteristic tests, durability, and reliability tests.
In rated value testing, Xuan'an Technology recommends the use of various equipment such as the HY-PM series programmable multifunction DC power supply, HY-S series 1U ultra-thin programmable DC power supply, HY-HV series programmable high-voltage DC power supply, HY-HP programmable high-power DC power supply, etc.
Xuan'an Technology's power supplies, with years of dedication to IGBT testing, exhibit high performance and stability in scenarios involving high power, high voltage, and large current. Their products, known for ultra-high precision and resolution, have gained trust and recognition from customers.
IGBT Test Power Supply Products
HY-HV Series Programmable High-Voltage DC Power Supply
Maximum Output Voltage: 50kV
High Power Density: Up to 20kW per unit
Constant Voltage (CV)/Constant Current (CC) modes with CV/CC priority setting
Front-panel programming supported; no need for upper computer software control
Adjustable rising and falling slopes for voltage and current
Soft-start function for power supply output
16-bit D/A high-precision converter for accurate output
20-bit A/D high-precision converter for precise readings during feedback
Load real-time measurement video available for further insights
HY-S Series 1U Ultra-Thin Programmable DC Power Supply