Power distribution module
AssigneeMTD Products Inc
InventorMaynard S. Guadiz
Life of this patent
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Abstract
A power distribution module (PDM) for a vehicle is discussed. PDMs discussed herein can comprise one or more improvements that are related to the pre-charge circuit, the contactor drive circuit, or both. One example embodiment is a PDM comprising: a pre-charge circuit configured to increase an output voltage to one or more motor controllers from zero to an operating voltage, wherein the pre-charge circuit is configured to increase the output voltage linearly; and a contactor drive circuit comprising a contactor coil, wherein the contactor drive circuit is configured to control activation of the pre-charge circuit.
Claims1
A power distribution module (PDM) for a vehicle, comprising:
- a pre-charge circuit configured to increase an output voltage to one or more motor controllers from zero to an operating voltage, wherein the pre-charge circuit is configured to increase the output voltage linearly;
- and
- a contactor drive circuit comprising a contactor coil, wherein the contactor drive circuit is configured to control activation of a contactor coil circuit;
- wherein the output voltage is generated via a first operational amplifier configured to amplify a linearly increasing reference voltage based on a fixed gain to charge a load capacitor;
- and
- wherein the reference voltage is generated via a capacitor configured to be charged by a current mirror.
Dependencies are inferred from the claim text.