Abstract: Provided herein are power converter of a drive unit for an electric vehicle. The power converter includes an inverter having a first transistor, a second transistor, and a capacitor, and a laminated bus-bar having a positive bus-bar segment, a negative bus-bar segment and a phase bus-bar segment. The positive bus-bar segment, the negative bus-bar segment, and the phase bus-bar segment can be disposed about the capacitor to form a lead frame coupled with the capacitor. The lead frame can include a first lead coupled with the first transistor. The first lead can include portions of the positive bus-bar segment and the phase bus-bar segment. The lead frame can include a second lead coupled with the second transistor. The second lead can include portions of the negative bus-bar segment and the phase bus-bar segment.

Abstract: Provided herein is an inverter module that can include a first inverter cell and a second inverter cell, each including at least one transistor device, and a cold plate placed in contact with or proximate to the at least one transistor device. The cold plate can have a coolant channel through the cold plate. A connector can connect a coolant outlet of the cold plate of the first inverter cell to a coolant inlet of the cold plate of the second inverter cell in series, to form a continuous channel that extends from the first coolant inlet of the cold plate of the first inverter cell into the coolant channel of the cold plate of the second inverter cell. The coolant inlet of the cold plate of the first inverter cell can receive coolant fluid into the continuous channel.

Abstract: A laminated bus bar of an inverter module to power an electric vehicle is provided. The laminated bus bar can include a first insulating layer and a current layer disposed over the first insulting layer. The current layer can include an output terminal. The laminated bus bar can include a second insulating layer disposed over the current layer. The laminated bus bar can include a third insulating layer disposed over the second insulating layer. The laminated bus bar can include a first polarity (e.g., negative) layer disposed over the third insulating layer. The first polarity layer can include a first polarity (e.g., negative) input terminal. The laminated bus bar can include a fourth insulating layer disposed over the first polarity layer. The laminated bus bar can include a second polarity (e.g., positive) layer disposed over the fourth insulating layer and that includes a second polarity (e.g., positive) input terminal.

Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.