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This invention relates to a power module for a plug-in hybrid electric vehicle including an integrated converter having a rectifier changing AC to DC, a DC/DC converter changing from a first voltage to a second voltage, and a battery storing electrical energy. The integrated converter operates in th

This invention relates to a power module for a plug-in hybrid electric vehicle including an integrated converter having a rectifier changing AC to DC, a DC/DC converter changing from a first voltage to a second voltage, and a battery storing electrical energy. The integrated converter operates in three modes 1) AC plug-in charging mode, 2) boost mode supplying power from the battery to the electrical bus and 3) buck mode supplying power from the electrical bus to the battery. The integrated converter utilizes the same single inductor during each of the three operating modes to reduce cost and weight of the system.

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What is claimed is: 1. An AC/DC power module for a plug-in hybrid electric vehicle having an electric drive system and an electric power supply, the power module comprising:a plug connectable to an AC power source;a rectifier having a rectifier input connected to the plug for receiving an alternatin

What is claimed is: 1. An AC/DC power module for a plug-in hybrid electric vehicle having an electric drive system and an electric power supply, the power module comprising:a plug connectable to an AC power source;a rectifier having a rectifier input connected to the plug for receiving an alternating current therethrough, the rectifier having a rectifier circuit changing alternating current to direct current, the rectifier having a rectifier output supplying a direct current;a bidirectional DC to DC converter having a first converter terminal operating at a first voltage and a second converter terminal operating at a second voltage that is different than the first voltage, the bidirectional DC to DC converter having a converter circuit changing direct current to or from the first voltage and the second voltage, the first converter terminal connected to the rectifier output;an inductor, the rectifier comprising the inductor when during operation in a plug-in charging mode and the bidirectional DC to DC converter comprising the inductor during operation in a boost function mode and a buck function mode;a battery connected to the first converter terminal and the second converter terminal; anda bus connected to the first converter terminal and the second converter terminal, the bus connectable to the electric drive system.