In the motor controller, the direct current of the battery pack is used as the input power supply, and needs to be connected with the motor controller through the DC bus, which is called DC-LINK or DC support, and the capacitor is called bus capacitor or support capacitor or DC-Link capacitor. Eagtop DC-link capacitor takes an organic film as the insulating medium, and a metal layer evaporated on the surface of the organic film as the electrode, and the capacitor formed by winding two films has the advantages of stable capacity and small stray inductance. It is suitable for various occasions with harsh use conditions, low stray inductance and long service life requirements.

BUCK- BOOST inductor for the DC/DC converter is mainly used to boost and reduce the voltage; when the driver is outputting, the output voltage of the battery is improved and stabilized, and it plays the role of reducing voltage and smoothing wave when charging. In the bidirectional inverter circuit, ripple current is reduced, IGBT loss is reduced, and power efficiency is improved.

The injection molding bus bar is a carrier device for electric energy transmission and distribution, which is mainly suitable for distributed high-current products with a tight structure and a need for motion. In the new energy automobile industry, injection molding bus bars are characterized by a compact structure, low cost and mass production. Almost all new energy automobile drivers and battery packs are distributed with injection molding bus bar products.