What is a traction inverter auxiliary power supply?
Designed to meet the demanding voltage and reliability requirements of electric, hybrid, and plug-in hybrid electric vehicles (EVs, HEVs, and PHEVs), this turn-key auxiliary power supply solution for traction inverter systems delivers a compact, efficient, and robust solution for high-power traction inverter applications.
What is a three-phase inverter used for?
Three-phase inverters function as variable-frequency drives to control the speed of AC motors and for high power applications such as HVDC power transmissions. The typical application of a three-phase inverter using six isolated gate drivers is shown in Figure 1.
What is a reference inverter?
This reference design is capable of operating from a loosely regulated 24-V DC input and generates four pairs of 15-V and –8-V outputs suitable for powering six IGBT gate drivers. This reference design uses a single transformer for generating power rails for all three arms of the 3-phase inverter.
How does a traction inverter work?
The traction inverter efficiently converts DC power from a high-voltage battery to alternating phases of power needed to drive multi-phase motors. Galvanic isolation is required to protect people, as well as the low-voltage components on the cold side of the system, from the high-voltage traction inverter on the hot side of the system.
How many gate drivers does a 3 phase inverter use?
The typical application of a three-phase inverter using six isolated gate drivers is shown in Figure 1. Note that each phase uses a high-side and a low-side IGBT switch to apply positive and negative high-voltage DC pulses to the motor coils in an alternating mode.
What are inverter circuits used for?
This document describes inverter circuits used for motor control and other applications, focusing on PWM control. It also describes the differences between two-phase and three-phase modulation techniques as well as circuits for drive power supply and power losses in semiconductor devices. 1.1.
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