Abstract: In at least one embodiment, an apparatus comprising a vehicle inverter is provided. The vehicle inverter is programmed to invert a direct current (DC) input into a maximum alternating current (AC) output to power at least one external load and to receive first information indicative of whether a vehicle is in one of a drive mode and a park mode. The vehicle inverter is further programmed to provide the maximum AC output to the power the at least one external load in response to the information indicating that the vehicle is in the park mode and to invert the DC input into a first AC output that is less than the maximum AC output to power the at least one external load in response to the information indicating that the vehicle is in the drive mode.

Abstract: An inverter assembly includes an inverter and a load sensor. The inverter is configured to provide electrical power to a load. The load sensor has a first amplifier for sensing current of the load when the load is a low power load connected to the inverter and a second amplifier for sensing the load current when the load is a high power load connected to the inverter. Vehicle functionality such as start/stop functionality may be disabled while the load sensor senses that the load is connected to the inverter whereas the start/stop functionality may be disabled while the load sensor senses that the load is not connected to the inverter.

Abstract: A proximity detection circuit is contemplated to detect connection of a cordset to a vehicle charging system or connection of another device to some other electrical circuit where it may be desirable to facilitate detection. A short protection circuit may be included as part of the proximity detection circuit to facilitate disconnection in the event of a shorter other condition where undesirable currents and/or voltages may be propagated to other systems of portions of the vehicle charging system.

Abstract: A gate drive power supply (GDPS) system includes a voltage boost stage configured to boost an input voltage into a boost voltage and an inverter stage configured to invert the boost voltage into an AC voltage. The GDPS system further includes gate drive voltage supply circuits transformer coupled to the inverter stage to receive an AC output based on the AC voltage and configured to convert the AC output into DC supply voltages for gate drives.

Abstract: A resolver excitation signal generator includes a source configured to generate a sinusoidal input signal and an inverting amplifier circuit. The inverting amplifier circuit has an input connected to the source to receive the sinusoidal input signal and an output lacking a transistor stage. The inverting amplifier circuit is configured to amplify the sinusoidal input signal to generate at the output of the inverting amplifier circuit an excitation signal in the form of an amplified version of the sinusoidal input signal for a resolver.

Abstract: A multistage power supply system and method for providing uninterrupted low voltage electrical power to control circuitry in an electric or hybrid-electric vehicle. A first stage includes a converter for receiving a low voltage input from a vehicle battery and converting the vehicle battery low voltage input to a high voltage output. A second stage provided in series communication with the first stage includes a converter for receiving one of a rectified AC high voltage input and the first stage high voltage output and converting the one of the rectified AC high voltage input and the first stage high voltage output to a low voltage output for use in powering the vehicle control circuitry. The low voltage output is produced by the second stage from the rectified AC high voltage input when the rectified AC high voltage input is present, and the low voltage output is produced by the second stage from the first stage high voltage output when the rectified AC high voltage input is absent.

Abstract: An assembly includes a converter and a controller. The converter has a winding around a transformer core, first and second switches configured to alternately connect respective winding segments to an input power, and first and second resistors respectively connected in series with the switches. The controller is configured to compare voltages corresponding to currents through the resistors and terminate operation of the converter when a difference between the voltages exceeds a threshold indicative of transformer core flux walking.

Abstract: An inverter assembly includes an inverter and a load sensor. The inverter is configured to provide electrical power to a load. The load sensor has a first amplifier for sensing current of the load when the load is a low power load connected to the inverter and a second amplifier for sensing the load current when the load is a high power load connected to the inverter. Vehicle functionality such as start/stop functionality may be disabled while the load sensor senses that the load is connected to the inverter whereas the start/stop functionality may be disabled while the load sensor senses that the load is not connected to the inverter.

Abstract: An electrical device is described for use in an automotive vehicle. The device includes a printed circuit board (PCB) having first and second sides. The PCB is adapted for multiple electronic components to be mounted to the first side, including a first component at a first position and a second component at a second position. The second component is capable of substantially blocking airflow directed substantially across the first side from at least one direction toward the first component. The PCB defines a plurality of apertures formed in a region of the PCB including the first position such that airflow directed substantially across the second side of the PCB flows through the apertures, under the first component at the first position on the first side of the PCB, and on a portion of the first side of the PCB beyond the region of the PCB including the first position.

Abstract: An assembly includes a converter and a controller. The converter has a winding around a transformer core, first and second switches configured to alternately connect respective winding segments to an input power, and first and second resistors respectively connected in series with the switches. The controller is configured to compare voltages corresponding to currents through the resistors and terminate operation of the converter when a difference between the voltages exceeds a threshold indicative of transformer core flux walking.

Abstract: An offline power supply includes a power supply circuit including a primary-side circuit for connecting to a first power source, a secondary-side circuit for connecting to a load, and a transformer connecting the primary-side circuit and the secondary-side circuit. A switch operates to selectively connect the primary-side circuit to the first power source. A second power source is charged during operation of the power supply circuit. A controller powered by the second power source has at least one input, and an output to selectively operate the switch based on the at least one input.

Abstract: An offline power supply includes a power supply circuit including a primary-side circuit for connecting to a power source, a secondary-side circuit for connecting to a load, and a transformer connecting the primary-side circuit and the secondary-side circuit. A switch operates to selectively connect the primary-side circuit to the power source. A trigger circuit is connected to the secondary-side circuit and has at least one input. The trigger circuit generates an output to selectively operate the switch based on the at least one input.

Abstract: A control pilot detection circuit operable with a control pilot signal provided from an electric vehicle supply equipment (EVSE) system to facilitate output of a control pilot wake-up signal. The control pilot wake-up signal may be operable with a controller to facilitate controlling operations of a vehicle charging system, such as to facilitate charging a high voltage battery included within a vehicle.

Abstract: An offline power supply includes a power supply circuit including a primary-side circuit for connecting to a power source, a secondary-side circuit for connecting to a load, and a transformer connecting the primary-side circuit and the secondary-side circuit. A switch operates to selectively connect the primary-side circuit to the power source. A trigger circuit is connected to the secondary-side circuit and has at least one input. The trigger circuit generates an output to selectively operate the switch based on the at least one input.

Abstract: A housekeeping circuit configured to facilitate powering multiple loads is contemplated. The housekeeping circuit may include a transformer to regulate voltage output for using in powering the loads. A trickle circuit may be included to facilitate setting a minimum loading on the transformer. The minimum loading may be beneficial in insuring proper regulation of the transformer.

Abstract: A control pilot detection circuit operable with a control pilot signal provided from an electric vehicle supply equipment (EVSE) system to facilitate output of a control pilot wake-up signal. The control pilot wake-up signal may be operable with a controller to facilitate controlling operations of a vehicle charging system, such as to facilitate charging a high voltage battery included within a vehicle.

Abstract: A proximity detection circuit is contemplated to detect connection of a cordset to a vehicle charging system or connection of another device to some other electrical circuit where it may be desirable to facilitate detection. A short protection circuit may be included as part of the proximity detection circuit to facilitate disconnection in the event of a shorter other condition where undesirable currents and/or voltages may be propagated to other systems of portions of the vehicle charging system.

Abstract: A multistage power supply system and method for providing uninterrupted low voltage electrical power to control circuitry in an electric or hybrid-electric vehicle. A first stage includes a converter for receiving a low voltage input from a vehicle battery and converting the vehicle battery low voltage input to a high voltage output. A second stage provided in series communication with the first stage includes a converter for receiving one of a rectified AC high voltage input and the first stage high voltage output and converting the one of the rectified AC high voltage input and the first stage high voltage output to a low voltage output for use in powering the vehicle control circuitry. The low voltage output is produced by the second stage from the rectified AC high voltage input when the rectified AC high voltage input is present, and the low voltage output is produced by the second stage from the first stage high voltage output when the rectified AC high voltage input is absent.

Abstract: An offline power supply includes a power supply circuit including a primary-side circuit for connecting to a first power source, a secondary-side circuit for connecting to a load, and a transformer connecting the primary-side circuit and the secondary-side circuit. A switch operates to selectively connect the primary-side circuit to the first power source. A second power source is charged during operation of the power supply circuit. A controller powered by the second power source has at least one input, and an output to selectively operate the switch based on the at least one input.

Abstract: A proximity detection circuit is operable to detect connection of a cordset to a vehicle charging system or connection of another device to some other electrical circuit where it may be desirable to facilitate detection while a controller or other current drawing source is inactive.