Power phase module based on IEGT

A phase module and power technology, applied in the direction of output power conversion devices, conversion equipment without intermediate conversion to AC, cooling/ventilation/heating transformation, etc., can solve unfavorable power module maintenance and replacement, unfavorable insulation, loose distance, etc. problems, to achieve the effect of convenient free combination, alleviating electrical stress, and convenient maintenance

Active Publication Date: 2010-08-04
RONGXIN HUIKO ELECTRIC TECH CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The packaging method of IEGT is double-sided heat dissipation, which has better heat dissipation effect than IGBT with single-side heat dissipation, and the phase module is smaller, because the structure of the power module composed of power electronic devices involves a wide range, including the installation of power electronic devices, heat dissipation , elec...

Method used

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  • Power phase module based on IEGT
  • Power phase module based on IEGT
  • Power phase module based on IEGT

Examples

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Embodiment Construction

[0026] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0027] See figure 1 , an IEGT-based power phase module, including a switching device IEGT1 and a switching device IEGT2, the switching device IEGT1 is connected in parallel with a freewheeling diode D1, the switching device IEGT2 is connected in parallel with a freewheeling diode D2, the switching device IEGT1 and the switching device IEGT2 are connected in series, The intermediate connection end leads to the output end; the phase module is provided with a buffer absorption circuit.

[0028] The buffer absorption circuit includes two series connected inductors L1, L2, resistor R, diode D3 and capacitor C, the positive end of diode D3 is connected to inductor L2, the negative end of diode D3 is connected to resistor R, and resistor R is connected to inductor L1; the diode D3 The negative end is also connected to the capacitor C, and the other end ...

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PUM

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Abstract

The invention relates to a power unit phase module based on IEGT, comprising two IEGT devices; each IEGT device is connected with a freewheel diode in parallel, the two IEGT devices are connected in series, and the middle connecting end is lead out to be output terminal; and the phase module is provided with a buffer absorption circuit. The phase module is in the electric structure that the external is a closed box, an insulating separator divides the interior of the closed box into upper and lower spaces, and the IEGT unit and the diode unit are respectively arranged in the upper and lower spaces of the insulating separator to form a double-layer structure. The invention has the beneficial effects that: (1) power density is high; (2) serviceability is high; (3) installation and maintenance are convenient; (4) modular design can be convenient for free combination, thus being widely applied to multiple power electronic devices.

Description

technical field [0001] The invention relates to a power phase module in the field of high-power electric electronic converter with IEGT as the core device. Background technique [0002] IGBT (Insulated Gate Bipolar Transistor) is an insulated gate bipolar transistor, which is a composite fully-controlled voltage-driven power semiconductor device composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor), and has a MOSFET The advantages of high input impedance and low conduction voltage drop of GTR. The saturation voltage of GTR is low, the carrying current density is large, but the driving current is large; the driving power of MOSFET is small, the switching speed is fast, but the conduction voltage drop is large, and the current carrying density is small. The IGBT combines the advantages of the above two devices, the driving power is small and the saturation voltage is reduced, and it is very suitable for use in converter systems such as high-vol...

Claims

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Application Information

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IPC IPC(8): H02M3/10H02M1/44H05K7/20H01L25/00
CPCH01L2924/0002
Inventor 李兴徐颖崔效毓汪昊丁雅丽张海涛李旷郭自勇
Owner RONGXIN HUIKO ELECTRIC TECH CO LTD
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