Delphi Technologies, Inc.

Aptiv Technologies Limited

Jeffrey Alan Ely

Tillasthanam V Sriram

Brian John Denta

Gregory N Simopoulos

Justin B Lybbert

George N Simopoulos

James W Ananias

Steven Robert Mc Mullen

A wireless electrical charging system and a method of operating same wherein operating parameters from a remote portion of the system are wirelessly transmitted to a system controller controlling the output voltage of an alternating power supply. The system controller executes an adaptive model control algorithm that allows the system controller to update the output voltage at a greater rate than the transmission rate of the operating parameters from the remote portion of the system.

Wireless battery charger with wireless control system

A wireless electrical charging system and a method of operating same wherein operating parameters from a remote portion of the system are wirelessly transmitted to a charging controller controlling the output voltage of an alternating power supply. The charging controller executes an adaptive model control algorithm that allows the charging controller to update the output voltage at a greater rate than the transmission rate of the operating parameters from the remote portion of the system.

Wireless battery charger with wireless control system and method for control thereof

A wireless power receiver configured to control an electrical connection between a capture resonator of a wireless power transfer system and an electrical load, such as a battery pack or electric motor. The circuitry of the wireless power receiver is powered directly by the power output from the capture resonator, automatically powering up the wireless power receiver as soon as the capture resonator begins producing power. The wireless power receiverdoes not require stand-by power provided by an external source, such as a vehicle battery. Since the wireless power receiver does not require power from an external source, it can initiate charging of a vehicle battery even if the state of charge of the battery in the vehicle is too low to operate the controller.

Magnetic field detection apparatus for a wireless power transfer system

A power system for increasing a load start-up capability of a DC/AC converter includes a DC/AC converter, a processor coupled to the DC/AC converter and a memory subsystem coupled to the processor. The memory subsystem stores code that when executed by the processor instructs the processor to perform a number of steps. When an actual link voltage of a DC/AC converter falls below a predetermined link voltage level, when a commanded link voltage is set for a nominal link voltage level, the commanded link voltage is increased to link voltage level that is greater than the nominal link voltage level. The DC/AC converter is then restarted.

Method and system for increasing load start-up capability of a DC-to-AC converter

A power system that increases the power capability of a DC/AC converter includes a processor coupled to the DC/AC converter and a memory subsystem coupled to the processor. The memory subsystem stores code that when executed by the processor instructs the processor to perform a number of steps. The processor determines when an electrical load that is coupled to the DC/AC converter causes a link voltage of the DC/AC converter to fall below a first predetermined link voltage level. The processor then controls a DC/AC output inverter of the DC/AC converter to cause the DC/AC converter to provide a non-sinusoidal output waveform. The processor also controls the DC/AC output inverter to cause the DC/AC converter to provide a sinusoidal output waveform, when the link voltage exceeds the first predetermined link voltage level or a second predetermined link voltage level.

Technique for increasing power capability of a DC-to-AC converter

An improved series-pass over-voltage protection circuit includes a P-channel enhancement mode MOSFET (PFET) continuously coupling a DC voltage supply such as a motor vehicle storage battery to one or more electrical loads. The source of the PFET is connected to the positive terminal of the DC voltage supply, and in normal operation, low quiescent current draw is achieved by coupling the gate of the PFET to the negative terminal of the power supply through a low-current current sink. A gate discharge amplifier including a high current capability transistor connected across the source-to-gate circuit of the PFET is activated by a controlled current sink when an over-voltage occurs at the drain of the PFET, and the inherent high impedance of the current sinks relative to the gate discharge amplifier provides high immunity of the PFET to input voltage transients. The result is a practical and highly effective over-voltage protection circuit for continuously powered electrical loads.

Series pass over-voltage protection circuit having low quiescent current draw

An improved series-pass over-voltage protection circuit including multiple parallel-connected series-pass over-voltage suppression transistors coupling a DC voltage supply such as a motor vehicle storage battery to one or more high current electrical loads. During normal operation, all of the transistors are biased to the fully conductive/enhanced state to provide very low pass-through on-resistance. However, during linear (over-voltage suppression) operation, a logic circuit enables individual transistors in sequence at a frequency that is high relative to the thermal time constant of the transistors, and with a small amount of conduction overlap between successively enabled transistors. Sequentially enabling the transistors guarantees at least a minimum level of load sharing, and the overlap minimizes switching-related output current transients.

Series-pass over-voltage protection circuit having multiple transistors in parallel

An improved series-pass over-voltage protection circuit includes at least one N-channel enhancement mode MOSFET (NFET) coupling a DC voltage supply such as a motor vehicle storage battery to one or more high current electrical loads. The drain of the NFET is connected to the positive terminal of the DC voltage supply, and a high impedance gate voltage power supply biases the NFET to a fully enhanced state in normal operation to provide very low pass-through on-resistance. A gate discharge circuit including a high current capability transistor connected between the NFET gate and ground potential is activated in response to a detected over-voltage condition, and a compensation network having low AC impedance relative to that of the NFET is connected in parallel with the gate discharge circuit, providing a sink for the NFET gate charge to limit over-voltage shoot-through while the gate discharge transistor is activated in response to the detected over-voltage condition to quickly discharge the gate capacitance and transition the NFET to a limited conduction mode for regulating the load voltage.

High current series-pass over-voltage protection circuit

An improved series-pass over-voltage protection circuit for a motor vehicle electrical system includes first and second parallel connected power paths that respectively provide low current capability with low quiescent current drain, and high current capability with low on-resistance. The first power path, embodied by a P-channel MOSFET, supplies pass-through battery current to quiescent loads such as an engine control module during periods of vehicle inactivity. The second power path, embodied by at least one N-channel MOSFET, is activated by a gate voltage power supply during periods of vehicle activity. The second power path is configured to limit the circuit output voltage to a higher value than the first power path, so that the over-voltage protection during periods of vehicle activity is accomplished by the second power path.

Series pass over-voltage protection circuit for a motor vehicle electrical system

A MOSFET control circuit for use in generators with dual windings. The MOSFET switch consists of two or more MOSFETs connected between the upper and lower windings of a three-phase generator to permit the windings to operate in series or in parallel. The gate of one of the MOSFETs is controlled by a gate drive circuit that turns the MOSFET ON when the windings are to operate in series. The MOSFET is OFF when the windings are to operate in parallel.

Growing community of inventors

Kokomo, IN, United States of America

Jeffrey Alan Ely