Abstract: An electronic circuit is disclosed and described herein. The circuit includes first and second pins, and an overvoltage protection circuit including a first enhancement-mode transistor. The overvoltage protection circuit is disposed on a GaN-based substrate, and the first enhancement mode transistor is configured to provide overvoltage protection between the first and second pins.

Abstract: According to an exemplary implementation, an integrated circuit (IC) includes a logic circuit monolithically formed on the IC. The logic circuit is configured to generate modulation signals for controlling power switches of a power inverter. The logic circuit generates the modulation signals based on at least one input value. The IC further includes a voltage level shifter monolithically formed on the IC. The voltage level shifter is configured to shift the modulation signals to a voltage level suitable for driving the power switches of the power inverter. The logic circuit can be a digital logic circuit and the input value can be a digital input value. The IC can also include a sense circuit monolithically formed on the IC. The sense circuit is configured to generate the input value.

Abstract: In one implementation, a power converter includes an output stage integrated circuit (IC) in a group III-V die including a depletion mode group III-V transistor, and a driver IC in a group IV die. The driver IC is configured to drive the output stage IC. In addition, a group IV control switch in the group IV die is cascoded with the depletion mode group III-V transistor. The power converter further includes an overcurrent protection circuit for the depletion mode group III-V transistor, the overcurrent protection circuit monolithically integrated in the group IV die.

Abstract: According to an exemplary implementation, an integrated circuit (IC) includes a logic circuit monolithically formed on the IC. The logic circuit is configured to generate modulation signals for controlling power switches of a power inverter. The logic circuit generates the modulation signals based on at least one input value. The IC further includes a voltage level shifter monolithically formed on the IC. The voltage level shifter is configured to shift the modulation signals to a voltage level suitable for driving the power switches of the power inverter. The logic circuit can be a digital logic circuit and the input value can be a digital input value. The IC can also include a sense circuit monolithically formed on the IC. The sense circuit is configured to generate the input value.

Abstract: According to an exemplary implementation, an integrated circuit (IC) includes a logic circuit monolithically formed on the IC. The logic circuit is configured to generate modulation signals for controlling power switches of a power inverter. The logic circuit generates the modulation signals based on at least one input value. The IC further includes a voltage level shifter monolithically formed on the IC. The voltage level shifter is configured to shift the modulation signals to a voltage level suitable for driving the power switches of the power inverter. The logic circuit can be a digital logic circuit and the input value can be a digital input value. The IC can also include a sense circuit monolithically formed on the IC. The sense circuit is configured to generate the input value.

Abstract: In one implementation, a power converter includes an output stage integrated circuit (IC) in a group III-V die including a depletion mode group III-V transistor, and a driver IC in a group IV die. The driver IC is configured to drive the output stage IC. In addition, a group IV control switch in the group IV die is cascoded with the depletion mode group III-V transistor. The power converter further includes an overcurrent protection circuit for the depletion mode group III-V transistor, the overcurrent protection circuit monolithically integrated in the group IV die.

Abstract: According to an exemplary implementation, an integrated circuit (IC) includes a logic circuit monolithically formed on the IC. The logic circuit is configured to generate modulation signals for controlling power switches of a power inverter. The logic circuit generates the modulation signals based on at least one input value. The IC further includes a voltage level shifter monolithically formed on the IC. The voltage level shifter is configured to shift the modulation signals to a voltage level suitable for driving the power switches of the power inverter. The logic circuit can be a digital logic circuit and the input value can be a digital input value. The IC can also include a sense circuit monolithically formed on the IC. The sense circuit is configured to generate the input value.

Abstract: An integrated ground fault detection circuit in accordance with an embodiment of the present application includes a shunt resistor provided on a positive rail of a DC bus, a high voltage pocket including a sensory circuit connected to the shunt resistor and operable to detect a fault condition indicating a short circuit and a transmitter section operable to continuously transmit a fault condition signal indicating the fault condition and a low voltage pocket including a receiver operable to receive the fault condition signal from the sensory circuit and a logic unit, connected to the receiver, and operable to provide a fault output signal indicating the presence of a fault condition based on the fault condition signal.

Abstract: A planar transformer arrangement and method provide isolation between an input signal and an output signal.

Abstract: A high-side driver in a driver circuit for driving a half-bridge stage having high- and low-side power switching devices series connected at a switched node, the high-side driver driving the high-side power switching device.

Abstract: A circuit for optimizing charging of a bootstrap capacitor connected to a high side floating supply voltage at a first terminal and to a switched node voltage at a second terminal, the circuit for optimizing being included in a gate driver circuit having high- and low-side driver circuits for driving high- and low-side switches connected at the switched node in a half bridge to provide current to a load, the high-side driver circuit receiving a first control voltage referenced to a first level and the low-side driver circuit receiving a second control voltage referenced to a second level, the bootstrap capacitor providing the high-side floating supply voltage for the high-side driver circuit, the optimizing circuit comprising a bootstrap diode emulator circuit comprising a bootstrap diode emulator driver circuit driving a first switch, the first switch connected between the first terminal of the bootstrap capacitor and a supply voltage for the low side driver circuit; and a phase sense comparator circuit resp

Abstract: An integrated ground fault detection circuit in accordance with an embodiment of the present application includes a shunt resistor provided on a positive rail of a DC bus, a high voltage pocket including a sensory circuit connected to the shunt resistor and operable to detect a fault condition indicating a short circuit and a transmitter section operable to continuously transmit a fault condition signal indicating the fault condition and a low voltage pocket including a receiver operable to receive the fault condition signal from the sensory circuit and a logic unit, connected to the receiver, and operable to provide a fault output signal indicating the presence of a fault condition based on the fault condition signal.

Abstract: A high-side driver in a driver circuit for driving a half-bridge stage having high- and low-side power switching devices series connected at a switched node, the high-side driver driving the high-side power switching device.

Abstract: A planar transformer arrangement and method provide isolation between an input signal and an output signal.

Abstract: A circuit for optimizing charging of a bootstrap capacitor connected to a high side floating supply voltage at a first terminal and to a switched node voltage at a second terminal, the circuit for optimizing being included in a gate driver circuit having high- and low-side driver circuits for driving high- and low-side switches connected at the switched node in a half bridge to provide current to a load, the high-side driver circuit receiving a first control voltage referenced to a first level and the low-side driver circuit receiving a second control voltage referenced to a second level, the bootstrap capacitor providing the high-side floating supply voltage for the high-side driver circuit, the optimizing circuit comprising a bootstrap diode emulator circuit comprising a bootstrap diode emulator driver circuit driving a first switch, the first switch connected between the first terminal of the bootstrap capacitor and a supply voltage for the low side driver circuit; and a phase sense comparator circuit resp

Abstract: A planar transformer arrangement and method provide isolation between an input signal and an output signal.

Abstract: A circuit in a gate driver circuit controlling a half bridge stage having high and low switches, the gate driver circuit having a high side driving circuit for driving the high switch and low side driving circuit for driving the low switch, the circuit ensuring turning OFF of the high side driving circuit and the high switch. The circuit including an input portion for receiving input signals for the high and low side driving circuits and a shutdown signals; and an output portion for providing SET and RESET signals to the high and low side driving circuits, wherein the high side driving circuit is turned OFF when the input signal for the high side driving circuit is inactive and when the input signal for the low side driving circuit becomes active.

Abstract: A planar transformer arrangement and method provide isolation between an input signal and an output signal.

Abstract: A planar transformer arrangement and method provide isolation between an input signal and an output signal.

Abstract: A power supply has an output circuit for a secondary stage of a converter that switches on and off a switching device such that the output voltage of the converter is regulated across a capacitor without use of an inductor in the output circuit. For example, the switching device is a semiconductor field effect transistor controlled by a comparator. The output circuit may be used with a switch mode power supply comprising a coreless, planar isolation transformer.