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Salient features of an automotive power system configuration include high-voltage DC links, an inverter, a motor controller, a controller for the power electronics, and a power transformer. A typical automotive power system configuration may be of hundreds of volts with a line frequency of hundreds of kilohertz. It has a state of charge and temperature or value transmitters and an inverter. The inverter can also handle direct current. In order to save weight and volume, the inverter is placed in the engine compartment, but the battery voltage is brought to the inverter via a DC link. Generally, a high-voltage DC link with a large number of inverters is formed. Typically, there is a DC link between the ECU and the inverter which is used to transfer information or commands. The rectified AC from the alternator is further filtered and converted to the DC line voltage. During regeneration, braking power is obtained from the alternator in the form of voltage. Normally, a large power semiconductor device is used to convert AC to DC. The high-voltage device can be a bipolar junction transistor or a metal-oxide-semiconductor field-effect transistor. These devices can provide a significant voltage rise, as well as a boost in current ability. Thus, they make it possible to have low-dissipation devices. The high-voltage device can be used in many hundreds of volts. When such devices are required to deliver large powers, it is essential that there are devices with high power ratings and high breakdown capabilities. For instance, MOSFETs can deliver significant voltages and current, so that they can deliver substantial power to a load. The interconnection of these devices is quite challenging, however, because of the voltage difference that exists between individual devices. This problem becomes more difficult as the number of devices is increased. One of the most important characteristics of a motor drive system is the overall efficiency of the system. Because of load and voltage conditioning, this is a very important aspect of the system. During continuous operation, the power delivered must not exceed a customer-specified limit. Thus, the breakdown voltages of the devices must be high to ensure reliability. During the initial ramp-up time of the inverter, the pulsing of the switching devices can be detrimental. This is called an initial surge and can cause damage to the driver and the switching device as well as significantly increase the size of filter capacitors. d2c66b5586