# US 10,771,001 B2 · Controller for an inductive load having one or more inductive windings > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,771,001 B2 - Document ID: US10771001B2 - Status: Granted - Kind: B2 - Application number: 15/758,694 - Filed: 2016-09-12 - Published: 2018-09-06 - Granted: 2020-09-08 - Earliest claimed: 2015-09-11 - Assignees: InvertedPower Pty Ltd - Applicants: InvertedPower Pty Ltd - Inventors: Stefan Smolenaers - Web page: https://patentgrep.com/patent/US10771001B2 ## CPC - H02J 7/02: for charging batteries from AC mains by converters - B60L 53/24: Using the vehicle's propulsion converter for charging - H02J 1/12: Parallel operation of DC sources having power converters with further DC sources without power converters - H02J 7/1423: {with multiple batteries} - H02P 25/22: Multiple windings; Windings for more than three phases - H02P 27/06: using DC to AC converters or inverters (H02P27/05 takes precedence) - H02P 27/08: with pulse width modulation - B60L 50/51: characterised by AC-motors - H02J 1/10: Parallel operation of DC sources - H02J 7/345: {using capacitors as storage or buffering devices} - H02J 2207/20: Charging or discharging characterised by the power electronics converter - Y02T 10/64: Electric machine technologies in electromobility - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 90/12: Electric charging stations - Y02T 90/14: Plug-in electric vehicles - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract The invention is to a controller for a DC electric motor having a first drive circuit and a second drive circuit that operate in a first state and a second state wherein, in the first state, circuits are connected with terminals input and are responsive to the control signals for receiving a load current and selectively energising winding to create torque in motor. In the second state, circuit is disconnected from terminal such that: circuit is able to be responsive to current for generating a first DC charging current to batteries; and circuit is able to connect with a terminal and be responsive to a second DC charging current for selectively directing an energizing current through winding. ## Claims ### Claim 1 A controller for an electric vehicle, comprising: a motor of the vehicle having one or more inductive windings; a first drive circuit including a first half-bridge rectifier; a second drive circuit including a second half-bridge rectifier; a third drive circuit including a third half-bridge rectifier; wherein the one or more inductive winding is connected across from a midpoint of one of the first, second, or third half-bridge rectifiers to a midpoint of an other of the first, second, or third half-bridge rectifiers; a first input connected to respective like pairs of positive power rails and negative power rails of the first, second, and third drive circuits in a parallel arrangement; a first direct current energy source or an onboard battery connected across the first input; and a control module configured to issue control signals to reconfigure the first, second, and third drive circuits from a first state to a second state; wherein, in the first state, in response to the control signals, the first, second, and third drive circuits are configured in a first period to drive the motor to propel the vehicle and in a second period to generate a first direct current charging current to re-charge the on-board battery; wherein said first, second and third drive circuits are connected with the first input and are responsive to the control signals for receiving a load current and selectively energising at least one of the one or more inductive windings; and wherein, in the second, reconfigured state, the controller comprises: a second direct current external energy source connected across a second input, to charge the onboard battery, the second input connected across the second drive circuit; a switch in at least one of the positive power rail and the negative power rail, between the second drive circuit and the first drive circuit; and a first bulk capacitor across the first input and a second bulk capacitor across the second input; wherein, in the second state, the switch is open, the second drive circuit is disconnected from the first input, and the control module is configured to operate at least one of the first, second, and third drive circuits, with at least one inductive winding, in a buck convert mode, a boost convert mode, or a buck-boost convert mode from the second direct external power source at a second potential to a first potential in order to charge the onboard battery. ### Claim 2 (depends on 1) The controller according to claim 1, wherein the switch includes one or more switches where the or each switch has at least two states and is responsive to the control signals for selectively progressing the or each switch between the states. ### Claim 3 (depends on 1) The controller according to claim 1, wherein the switch is responsive to one or more of the control signals, from the control module, for selectively connecting and disconnecting one or more of the positive and negative power rails from the second input and at least one or an other of the power rails to and from the first input. ### Claim 4 (depends on 1) The controller according to claim 1, wherein each of the first, second, and third half-bridge rectifiers of the first, second, and third drive circuits includes a respective pair of switches, the switches being responsive to the control signals from the control module for selectively energising at least one of the inductive windings. ### Claim 5 (depends on 1) A controller according to claim 1, wherein at least one of the first, second, and third drive circuits selectively connects at least one of the inductive windings with at least one of the positive and negative power rails. ### Claim 6 (depends on 1) The controller according to claim 1, wherein the motor has a plurality of interconnected inductive windings. ### Claim 7 (depends on 1) The controller according to claim 1, wherein an inductive load is the motor having three inductive windings. ### Claim 8 (depends on 1) The controller according to claim 1, further including: an alternating current input circuit applied across the second input; wherein the alternating current input circuit includes an active rectifier suitable for an external, alternating current power source and power factor correction. ### Claim 9 (depends on 1) The controller according to claim 1, wherein the second bulk capacitor is configured to filter a direct current voltage potential of the external power source or an output of the alternating current input circuit when the controller is configured in the second state. ### Claim 10 (depends on 9) The controller according to claim 9, wherein the second bulk capacitor, when the controller is configured in the first state, is configured to filter a voltage potential applied to the motor. ### Claim 11 (depends on 1) The controller according to claim 1, wherein the second direct current external power source is a direct current charging station. ### Claim 12 (depends on 1) The controller according to claim 1, wherein the motor has more than three phase inductive windings, and wherein an additional drive circuit is included for each additional phase inductive winding. ### Claim 13 (depends on 1) The controller according to claim 1, wherein the controller is bidirectional such that in the second state the second direct current external power source or an alternating current external power source are charged by the controller. ### Claim 14 (depends on 1) The controller according to claim 1, wherein the vehicle includes a third input applied across an input circuit for interfacing with an alternating current source. ### Claim 15 (depends on 14) The controller of claim 14, wherein the alternating current source is three phase.