Abstract: A driver circuit includes a series-parallel charge pump including switched capacitor cells, wherein the series-parallel charge pump generates coarse signal steps at a first output node and a second output node; a flying capacitor coupled between the first output node and the second output node; and a digital-to-analog converter (DAC) coupled between the first output node and the second output node including switched capacitors for generating a plurality of fine signal steps.

Abstract: A driver circuit includes a series-parallel charge pump including switched capacitor cells, wherein the series-parallel charge pump generates coarse signal steps at a first output node and a second output node; a flying capacitor coupled between the first output node and the second output node; and a digital-to-analog converter (DAC) coupled between the first output node and the second output node including switched capacitors for generating a plurality of fine signal steps.

Abstract: The present application relates to a gate driver including a zero-crossing detection circuit and a control signal generation circuit. The zero-crossing detection circuit receives a load current signal indicative of a load current of a power switch, detects a zero crossing of the load current, and generates a zero-crossing detection signal based on the detected zero-crossing. The control signal generation circuit receives an input control signal indicative of one of a turn-on and a turn-off of the power switch. If the input control signal is indicative of the turn-off of the power switch, the control signal generation circuit generates a turn-off signal based on the zero-crossing detection signal, determines if a time-out interval subsequent to the indication of the turn-off has expired, generates the turn-off signal regardless of the zero-crossing detection signal if the turn-off time interval has expired, and provides the turn-off signal to the power switch.

Abstract: According to some embodiments, a communication device includes a signal generator configured to generate a carrier signal, control logic configured to encode first data in the carrier signal, a barrier device including an isolation barrier connected to the signal generator and a tuning circuit connected to the isolation barrier to establish a resonance condition for communicating the carrier signal over the isolation barrier, and a receiver configured to decode second data from a remote device based on at least one parameter of the carrier signal.

Abstract: A driver circuit includes a series-parallel charge pump including switched capacitor cells, wherein the series-parallel charge pump generates coarse signal steps at a first output node and a second output node; a flying capacitor coupled between the first output node and the second output node; and a digital-to-analog converter (DAC) coupled between the first output node and the second output node including switched capacitors for generating a plurality of fine signal steps.

Abstract: An apparatus comprises a power source connected to a buffer capacitor. The apparatus comprises a first switch connected between the buffer capacitor and a driven switch. The buffer capacitor is charged by the power source when the first switch is turned off. The apparatus comprises a comparator. The comparator monitors the charging of the buffer capacitor. In response to the buffer capacitor reaching a threshold amount of charge, the comparator turns on the first switch to initiate a charge redistribution of charge from the buffer capacitor to the driven switch.

Abstract: A device includes: first and second electronic sides; an isolation barrier galvanically isolating the electronic sides from one another and including a signal coupler configured to enable signaling between the electronic sides over the isolation barrier via electromagnetic coupling; and transceiver circuitry included in both electronic sides and configured to implement, based on a frequency response profile of the isolation barrier, full-duplex communication between the electronic sides using the same signal coupler.

Abstract: The present application relates to a gate driver including a zero-crossing detection circuit and a control signal generation circuit. The zero-crossing detection circuit receives a load current signal indicative of a load current of a power switch, detects a zero crossing of the load current, and generates a zero-crossing detection signal based on the detected zero-crossing. The control signal generation circuit receives an input control signal indicative of one of a turn-on and a turn-off of the power switch. If the input control signal is indicative of the turn-off of the power switch, the control signal generation circuit generates a turn-off signal based on the zero-crossing detection signal, determines if a time-out interval subsequent to the indication of the turn-off has expired, generates the turn-off signal regardless of the zero-crossing detection signal if the turn-off time interval has expired, and provides the turn-off signal to the power switch.

Abstract: A power converter is provided. The power converter includes a transformer having a primary side winding and a secondary side winding, an oscillator circuit coupled to the primary side winding forming a resonant oscillator with the primary side winding and an output circuit coupled to the secondary side winding and configured to generate an output signal based on energy received from the secondary side winding. A secondary side controller is configured to transmit a control signal based on a controlled variable related to the output signal via the transformer to the primary side controller, and the primary side controller is configured to start or stop and oscillation of the resonant oscillator based on the control signal.

Abstract: A power switch assembly includes a power switch, a driving circuit configured to control the power switch, a protection device associated with a first current duration and a first current value and arranged between the driving circuit and the power switch, the protection device being configured to decouple the driving circuit from the power switch based on the first current duration and the first current value, and a clamping device associated with a second current duration and a second current value and arranged between the driving circuit, the protection device and the power switch, the clamping device being configured to couple the power switch to a second assembly load terminal of the power switch assembly based on the second current duration and the second current value. The first current duration is longer than the second current duration. The first current value is lower than the second current value.

Abstract: An apparatus comprises a power source connected to a buffer capacitor. The apparatus comprises a first switch connected between the buffer capacitor and a driven switch. The buffer capacitor is charged by the power source when the first switch is turned off. The apparatus comprises a comparator. The comparator monitors the charging of the buffer capacitor. In response to the buffer capacitor reaching a threshold amount of charge, the comparator turns on the first switch to initiate a charge redistribution of charge from the buffer capacitor to the driven switch.

Abstract: An apparatus comprises an energy transfer device configured to supply power from a primary side of an isolation barrier through the isolation barrier to a secondary side of the of the isolation barrier for driving a gate of a switch for controlling output of the switch at the secondary side. The apparatus comprises a monitoring component. The monitoring component is configured to monitor an operating state of the switch. The monitoring component is configured to evaluate the operating state to determine whether a fault has occurred, perform a countermeasure, and/or provide a signal of the fault.

Abstract: An apparatus comprises a power source connected to a buffer capacitor. The apparatus comprises a first switch connected between the buffer capacitor and a driven switch. The buffer capacitor is charged by the power source when the first switch is turned off. The apparatus comprises a comparator. The comparator monitors the charging of the buffer capacitor. In response to the buffer capacitor reaching a threshold amount of charge, the comparator turns on the first switch to initiate a charge redistribution of charge from the buffer capacitor to the driven switch.

Abstract: A device includes: first and second electronic sides; an isolation barrier galvanically isolating the electronic sides from one another and including a signal coupler configured to enable signaling between the electronic sides over the isolation barrier via electromagnetic coupling; and transceiver circuitry included in both electronic sides and configured to implement, based on a frequency response profile of the isolation barrier, full-duplex communication between the electronic sides using the same signal coupler.

Abstract: An apparatus comprises a power source connected to a buffer capacitor. The apparatus comprises a first switch connected between the buffer capacitor and a driven switch. The buffer capacitor is charged by the power source when the first switch is turned off. The apparatus comprises a comparator. The comparator monitors the charging of the buffer capacitor. In response to the buffer capacitor reaching a threshold amount of charge, the comparator turns on the first switch to initiate a charge redistribution of charge from the buffer capacitor to the driven switch.

Abstract: An apparatus comprises an energy transfer device configured to supply power from a primary side of an isolation barrier through the isolation barrier to a secondary side of the of the isolation barrier for driving a gate of a switch for controlling output of the switch at the secondary side. The apparatus comprises a monitoring component. The monitoring component is configured to monitor an operating state of the switch. The monitoring component is configured to evaluate the operating state to determine whether a fault has occurred, perform a countermeasure, and/or provide a signal of the fault.

Abstract: An apparatus comprises an energy transfer device that operates one or more input switches of an input side of an electrical isolation device to transfer energy through the isolation device to an output side of the electrical isolation device for activating a switch. The apparatus comprises a voltage conversion device that converts the energy from an input voltage of the input side to an output voltage to control the switch when the energy transfer is active. The apparatus comprises a passive turn off device that passively deactivates the switch when the energy transfer is inactive. The passive turn off device is disabled from deactivating the switch when the energy transfer is active.

Abstract: An apparatus comprises an energy transfer device that operates one or more input switches of an input side of an electrical isolation device to transfer energy through the isolation device to an output side of the electrical isolation device for activating a switch. The apparatus comprises a voltage conversion device that converts the energy from an input voltage of the input side to an output voltage to control the switch when the energy transfer is active. The apparatus comprises a passive turn off device that passively deactivates the switch when the energy transfer is inactive. The passive turn off device is disabled from deactivating the switch when the energy transfer is active.

Abstract: A multi-output gate driver system comprises a power device having a gate node; a first driver having an input and an output coupled to the gate node; a second driver having an input and an output coupled to the gate node; a first comparator having a first input coupled to the output of the second driver, a second input coupled to a first reference voltage, and an output; a second comparator having a first input coupled to the output of the second driver, a second input coupled to a second reference voltage, and an output; and a logic circuit having an input for receiving a control signal, a first output coupled to the input of the first driver, and a second output coupled to the input of the second driver.

Abstract: A multi-output gate driver system comprises a power device having a gate node; a first driver having an input and an output coupled to the gate node; a second driver having an input and an output coupled to the gate node; a first comparator having a first input coupled to the output of the second driver, a second input coupled to a first reference voltage, and an output; a second comparator having a first input coupled to the output of the second driver, a second input coupled to a second reference voltage, and an output; and a logic circuit having an input for receiving a control signal, a first output coupled to the input of the first driver, and a second output coupled to the input of the second driver.