Power module for drivetrain of an electric vehicle

A method of providing a power module for a drivetrain of an electric vehicle, the method comprising:

• providing a first polarity terminal having a first surface and a second surface;
• disposing an isolation layer having a first surface and a second surface such that the first surface of the isolation layer is coupled with the second surface of the first polarity terminal;
• coupling a second polarity terminal having a first surface and a second surface such that the first surface of the second polarity terminal is coupled with the second surface of the isolation layer;
• providing a high side switch;
• electrically coupling the first polarity terminal to the high side switch through a first current path;
• providing a low side switch;
• electrically coupling the second polarity terminal to the low side switch through a second current path;
• forming a power loop from the first current path and the second current path;
• the power loop having an overlapping current path formed from the first current path disposed parallel with respect to the second current path with the first polarity terminal of the first current path disposed parallel with respect to the second polarity terminal of the second current path;
• and
• the power loop having an overall inductance value equal to a sum of a self-inductance of the first current path and a self-inductance of the second current path minus a mutual inductance value of the overlapping current path.

An electric vehicle, comprising:

• a power module for a drivetrain of the electric vehicle, the power module comprising:
• a first polarity terminal having a first surface and a second surface;
• an isolation layer having a first surface and a second surface, the first surface of the isolation layer coupled with the second surface of the first polarity terminal;
• a second polarity terminal having a first surface and a second surface, the first surface of the second polarity terminal coupled with the second surface of the isolation layer;
• a high side switch;
• a first current path that electrically couples the first polarity terminal to the high side switch;
• a low side switch;
• a second current path that electrically couples the second polarity terminal to the low side switch;
• a power loop formed from the first current path and the second current path;
• the power loop having an overlapping current path formed from the first current path disposed in parallel with respect to the second current path with the first polarity terminal of the first current path disposed parallel with respect to the second polarity terminal of the second current path;
• and
• the power loop having an overall inductance value equal to a sum of a self-inductance of the first current path and a self-inductance of the second current path minus a mutual inductance value of the overlapping current path.