# US 12,759,488 B2 · Power distribution module

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- Number: US 12,759,488 B2
- Document ID: US12759488B2
- Status: Granted
- Kind: B2
- Application number: 18/750,620
- Filed: 2024-06-21
- Published: 2024-12-26
- Granted: 2026-10-13
- Earliest claimed: 2023-06-23
- Assignees: MTD Products Inc
- Applicants: Mtd Products Inc
- Inventors: Maynard S. Guadiz
- Web page: https://patentgrep.com/patent/US12759488B2

## CPC

- B60R 16/033: characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36)
- H02J 7/855: {with circuits adapted for supplying loads from the battery}
- H02P 29/68: based on the temperature of a drive component or a semiconductor component
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS

## 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.

## Claims

### Claim 1

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.