It is imperative for new energy vehicles to replace traditional fuel vehicles. The automobile industry has the characteristics of long industrial chain, wide coverage and high degree of internationalization. Because of the non-sustainability of traditional energy and the increasing global attention to environmental protection issues, it has become a global consensus that new energy vehicles replace traditional fuel vehicles.

New energy air conditioning compressors are mostly driven by three-phase inverter structure. In the refrigeration mode, its working principle is similar to that of the fuel vehicle air conditioner, and the refrigeration process is driven by the compressor. The electric compressor compresses the gaseous refrigerant at high pressure, the high-pressure gaseous refrigerant flows into the heat exchanger outside the vehicle to liquefy and release heat after passing through the four-way reversing valve, the liquid refrigerant flows through the dryer to filter impurities, the electronic expansion valve atomizes the refrigerant, the heat exchanger inside the vehicle absorbs heat and evaporates the atomized refrigerant to reduce the air temperature around the evaporator, and the blower blows cold air around the evaporator into the vehicle. The refrigerant is re-entered the electric compressor to repeat the above process.

There are two mainstream solutions for the inverter part in the market, one is the Gate Driver + IGBT solution, and the other is the IPM solution:

(1)   For the Gate Driver + IGBT solution, Silan provides a variety of products, shown as below:

SDH21263 is widely used in various A00 new energy vehicles, with built-in double high interlock, built-in undervoltage detection, built-in dead time and other rich functions.

 (2) Silan’s product with DIP27/DIP29 package for IPM solution:

                      DIP27                                           DIP29

Silan’s DIP27 product SD30M60AC integrates built-in BSD, supporting overcurrent, undervoltage and overtemperature protections, with FO fault output signal function, and the insulation withstand voltage level of 2500Vrms/min. It has been supplied in batches to TOP automotive air conditioning compressor manufacturers in China. The product features low switching loss and small temperature rise.

The switching loss test waveform of SD30M60AC is as follows:

Test conditions: VDC = 300 V, VCC = VBS = 15 V, IC = 6.3 A;

Where, the test waveform of our products is shown in grey while test waveform of products of the same trade is shown in color. As shown in below, both the turn-on peak current and the turn-off tail current of our product are smaller, better characteristics in switching loss than others.

                                         Turn-on waveform                                                                          Turn-off waveform

Silan’s DIP29 product SDM30N60FA and SDM50N60FA integrate built-in BSD, supporting overcurrent, undervoltage and overtemperature protections, with FO fault output signal function, and the insulation withstand voltage level of 2500Vrms/min. It has been supplied in batches to TOP automotive air conditioning compressor manufacturers in China. The products have better characteristics in switching loss, temperature rise and overload capacity.

The switching loss test waveform of SDM30N60FA is as follows:

Test conditions: VDC = 300 V, VCC = VBS = 15 V, IC = 10 A;

Where, the test waveform of our products is shown in grey while test waveform of products of the same trade is shown in color. As shown in below, Silan’s products have faster turn-on speed, smaller turn-off tail current, and better characteristics in switching loss.

                                      Turn-on waveform                                                                                  Turn-off waveform