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The unit commonly known in IGBT module refers to single pipe, two units refer to a single bridge arm, four units refer to single-phase bridge (H bridge), six units refer to three-phase bridge, seven units are usually six units + brake units, eight units are six units + brake units + precharge units.

The advantages of six unit IGBT module

1.Higher chopping frequency (4 to 16KHz);

2.Three double IGBT module elements are replaced by a six unit IGBT module element with the same power;

3.According to the actual operation observation, the reliability is increased by 5 times;

4.The reliability of power plate is greatly increased, which is due to direct welding between power devices;

The layout of various power lines is compact and the distribution reactance is reduced and the performance of six unit IGBT module of EMC is improved.

The advantages of six unit IGBT module in application field

1. Selecting six unit IGBT module will become a development trend in UPS field:

2. The high frequency switching performance of six unit IGBT module is the basic to complete PFC, and the effect of PFC will reduce the harmonic distortion of input current (THDi < 3%), and then harmonic filter will not be needed;

3. Smaller volume;

4. Optimized cost: the cost of selecting semiconductor integrated parts is lower than that of transformer reactor and the performance is better;

5. The frame structure is simpler: few mechanical parts and electrical parts; direct welding of power line; few connection points and connecting lines; more compact arrangement, reducing the length of connecting wire and line impedance;

6. Increased switching frequency: noise in audio area was significantly reduced.

The six unit IGBT module is also called three-phase bridge (the internal equivalent current of 3-phasebridge module) as shown in the following figure.


The three-phase bridge module is also called 6in1 module, which is used to directly constitute the three-phase bridge line, and can also make up the three half bridge circuits in parallel to form the half bridge module with a current specification of 3 times larger. The common fields of three-phase bridge are inverter, three-phase ups and three-phase inverter. Different applications have different requirements for IGBT module. Therefore, manufacturers will release three-phase bridge module named by the actual application field, such as 3-phaseinvertermodule, etc.

The above is the introduction of IGBT module power module manufacturer inheriting the power module of the electronic. Heritage electronics is a power semiconductor power module manufacturer in the professional field of power electronics technology, which provides the power semiconductor power module formulation, production and processing for all enterprises. Besides, it also provides the processing business of the incoming materials or OEM for each enterprise. The main products are: IGBT module power module, thyristor (thyristor) power module, super fast recovery epitaxial two pole power module, single-phase rectifier bridge power module, three-phase rectifier bridge power module, rectifier diode power module, Schottky diode power module and other power semi conductor electronic components.