Abstract: A first electronic controller is configured to provide control signals to the control terminals of the semiconductor switches of the first primary converter and the first secondary converter based on a commanded current or target output current (e.g., pursuant to a voltage control mode); the first electronic controller is configured to adjust or increase the output impedance or output resistance of the first secondary converter based on a first droop compensation module (or a first parallel compensation module) responsive to a current error or current difference between the target output current and the observed output current.

Abstract: In accordance with one embodiment, a driver is configured to adjust a phase offset of driver control signals between corresponding switches of the same phase of the primary converter and the secondary converter consistent with the target power transfer and the estimated electromagnetic circuit inductance (e.g., comprising a leakage inductance), to minimize thermal energy dissipated from the direct-current-to-direct current converter or its transformer for the sampling time interval.

Abstract: A bidirectional DC-DC converter having at least two secondary inductors on a secondary side of a transformer. The converter includes at least two switches respectively coupled to the at least two secondary inductors. Through selective operation of the switches, a gain of the converter can be changed by selectively coupling one secondary inductor to a primary inductor in accordance with an operating mode.

Abstract: An electronic controller is configured to provide control signals to the control terminals of the semiconductor switches of the primary converter and the secondary converter based on a commanded current or target output current; the electronic controller is configured to adjust the phase angle(s), between a respective pairs of semiconductor switches of the primary converter and second converter based on a deadtime compensation module responsive to a current error or current difference between the target output current and the observed output current. A low-pass filter facilitates estimation of the current error for compensation in the commanded current.

Abstract: An electronic controller is configured to adjust the duty cycle, between a respective pairs of semiconductor switches of the primary converter of a direct-current-to-direct-current converter based on reducing or minimizing one or more of the first estimated line-to-line DC offset voltage, the second estimated line-to-line DC offset voltage, and the third estimated line-to-line DC offset voltage. Further, the electronic controller is configured determines duty cycle adjustments based on reducing or minimizing one or more of the time-averaged magnitudes of, near DC low frequency AC components of the first estimated line-to-line DC offset voltage, the second estimated line-to-line DC offset voltage, and the third estimated line-to-line DC offset voltage.

Abstract: An electronic controller is configured to adjust the duty cycle, between a respective pairs of semiconductor switches of the primary converter of a direct-current-to-direct-current converter based on reducing or minimizing one or more of the first estimated line-to-line DC offset voltage, the second estimated line-to-line DC offset voltage, and the third estimated line-to-line DC offset voltage. Further, the electronic controller is configured determines duty cycle adjustments based on oversampling (e.g., enhanced data processing with interpolation) of smoothed or integrated representation of the first estimated line-to-line DC offset voltage, the second estimated line-to-line DC offset voltage, and the third estimated line-to-line DC offset voltage.

Abstract: A polarity detector is configured to detect whether a polarity of one of the secondary direct current terminals is reversed in polarity consistent with an improper connection of a removable load or the removable direct current energy source to the secondary direct current terminals. A protection module or transient clamp comprises a protection semiconductor switch with protection switched terminals and a protection control terminal. A controller is configured to control a plurality of switches of the circuit breaker and the protection module via a driver. Further, the controller is configured to open or activate the circuit breaker responsive to a signal or data message of the polarity detector detecting the improper connection.

Abstract: In accordance with one embodiment, a driver is configured to adjust a phase offset of driver control signals between corresponding switches of the same phase of the primary converter and the secondary converter consistent with the target power transfer and the estimated electromagnetic circuit inductance (e.g., comprising a leakage inductance), to minimize thermal energy dissipated from the direct-current-to-direct current converter or its transformer for the sampling time interval.

Abstract: In an example embodiment, a system includes a plurality of inverters configured to operate in at least one of a charging mode or a drive mode, a plurality of motors and at least one controller configured to selectively couple the plurality of inverters to the plurality of motors during a drive mode, and selectively couple at least one of the inverters to an alternating current (AC) source during the charging mode and decouple the at least one of the inverters from the plurality of motors during the charging mode.

Abstract: A first electronic controller is configured to provide control signals to the control terminals of the semiconductor switches of the first primary converter and the first secondary converter based on a commanded current or target output current (e.g., pursuant to a voltage control mode); the first electronic controller is configured to adjust or increase the output impedance or output resistance of the first secondary converter based on a first droop compensation module (or a first parallel compensation module) responsive to a current error or current difference between the target output current and the observed output current.

Abstract: An electronic controller is configured to provide control signals to the control terminals of the semiconductor switches of the primary converter and the secondary converter based on a commanded current or target output current; the electronic controller is configured to adjust the phase angle(s), between a respective pairs of semiconductor switches of the primary converter and second converter based on a deadtime compensation module responsive to a current error or current difference between the target output current and the observed output current. A low-pass filter facilitates estimation of the current error for compensation in the commanded current.

Abstract: An electronic controller is configured to adjust the duty cycle, between a respective pairs of semiconductor switches of the primary converter of a direct-current-to-direct-current converter based on reducing or minimizing one or more of the first estimated line-to-line DC offset voltage, the second estimated line-to-line DC offset voltage, and the third estimated line-to-line DC offset voltage. Further, the electronic controller is configured determines duty cycle adjustments based on oversampling (e.g., enhanced data processing with interpolation) of smoothed or integrated representation of the first estimated line-to-line DC offset voltage, the second estimated line-to-line DC offset voltage, and the third estimated line-to-line DC offset voltage.

Abstract: An electronic controller is configured to adjust the duty cycle, between a respective pairs of semiconductor switches of the primary converter of a direct-current-to-direct-current converter based on reducing or minimizing one or more of the first estimated line-to-line DC offset voltage, the second estimated line-to-line DC offset voltage, and the third estimated line-to-line DC offset voltage. Further, the electronic controller is configured determines duty cycle adjustments based on reducing or minimizing one or more of the time-averaged magnitudes of, near DC low frequency AC components of the first estimated line-to-line DC offset voltage, the second estimated line-to-line DC offset voltage, and the third estimated line-to-line DC offset voltage.

Abstract: A polarity detector is configured to detect whether a polarity of one of the secondary direct current terminals is reversed in polarity consistent with an improper connection of a removable load or the removable direct current energy source to the secondary direct current terminals. A protection module or transient clamp comprises a protection semiconductor switch with protection switched terminals and a protection control terminal. A controller is configured to control a plurality of switches of the circuit breaker and the protection module via a driver. Further, the controller is configured to open or activate the circuit breaker responsive to a signal or data message of the polarity detector detecting the improper connection.

Abstract: In an example embodiment, a system includes a plurality of inverters configured to operate in at least one of a charging mode or a drive mode, a plurality of motors and at least one controller configured to selectively couple the plurality of inverters to the plurality of motors during a drive mode, and selectively couple at least one of the inverters to an alternating current (AC) source during the charging mode and decouple the at least one of the inverters from the plurality of motors during the charging mode.

Abstract: A metallic island is disposed between a first metallic bus and a second metallic bus. The first metallic strip is isolated from the metallic island by a first dielectric barrier. At least a parallel portion of the first metallic strip is generally parallel to the first metallic bus, the second metallic strip isolated from the second metallic bus by a second dielectric barrier. Each first semiconductor terminals that are coupled to the first metallic bus and to the metallic island. Each second semiconductor has terminals coupled to the metallic island and to the second metallic bus.

Abstract: A metallic island is disposed between a first metallic bus and a second metallic bus. The first metallic strip is isolated from the metallic island by a first dielectric barrier. At least a parallel portion of the first metallic strip is generally parallel to the first metallic bus, the second metallic strip isolated from the second metallic bus by a second dielectric barrier. Each first semiconductor terminals that are coupled to the first metallic bus and to the metallic island. Each second semiconductor has terminals coupled to the metallic island and to the second metallic bus.

Abstract: A system and method for providing a mechanical joint supporting a printed circuit board and a solder joint of power module terminals to a printed circuit board, as well as a mechanical joint for facilitating a thermal interface between a power module and a heat sink or cold plate is disclosed. The system provides for both mechanical joints through a common mechanical support including a plurality of standoffs mounted to studs projecting from a heat sink or cold plate, wherein the assembly also provides for an insulating spacer to be clamped to the standoffs via a wing nut or similar fastener to support the printed circuit board.

Abstract: A feedback control circuit limits current being supplied to an electric drive motor. The motor drives a load cyclically along a path, and the load closes a switch when it passes a predetermined position. This activates a timing circuit which times out after a predetermined delay. If the load does not return to the predetermined position at the end of the prescribed delay time, then an oscillator circuit is triggered into operation to periodically terminate current flow to the motor. This provides cooling periods and enables the motor to exert repeated, temporary high torque efforts to restore normal operation.

Abstract: A method and apparatus for finely adjusting the dwell period for an intermittent windshield wiper. A multi-position switch establishes a maximum delay and a delay request. A processor reads the switch setting and senses the timing of a positioning movement relative to the timing of the next preceding wiper blade stroke. When the elapsed time between those events is intermediate the maximum delay and the delay request, the dwell period is set equal to the elapsed time. Otherwise the dwell period is set equal to the maximum delay.