Disclosed is a method and apparatus. The method includes detecting an operating state of a current source converter that comprises a current source rectifier (1), a current source inverter (2), and an inductor circuit (3) connected between an output (p, n) of the current source rectifier (1) and an input (q, r) of the current source inverter (2); and dependent on the detected operating state, operating the current source converter in a first operating mode or a second operating mode. Operating the current source converter in the first operating mode comprises operating the current source rectifier (1) in a 2/3 mode and operating the current source inverter in a 3/3 mode, and operating the current source converter in the second operating mode comprises operating the current source inverter (2) in the 2/3 mode and operating the current source rectifier in the 3/3 mode.

In accordance with embodiments of the present disclosure, a multi-mode switching power converter may include a power inductor, a first switch coupled between a first terminal of the power inductor and a first supply terminal having a first voltage, a second switch coupled between the first terminal of the power inductor and a second supply terminal having a second voltage, a full bridge comprising a plurality of switches and having an output for producing the output voltage comprising a first output terminal and a second output terminal, wherein a first input of the full bridge is coupled to a second terminal of the power inductor and a second input of the full bridge is coupled to one of the first supply terminal and the second supply terminal, and a capacitor coupled between the first output terminal and the second output terminal.

Disclosed is an electronic circuit. The electronic circuit includes a first transistor device, a second transistor device, and a third transistor device, each having a control node and a load path. The electronic circuit further includes a drive circuit. The load paths of the first and second transistor devices are connected in parallel, the load path of the third transistor device is connected in series with the load paths of the first and second transistor devices, and the first transistor device and the second transistor device are integrated in a common semiconductor body. The drive circuit is configured, based on a control signal, to successively switch on the first transistor device and the second transistor device, so that the second transistor device is switched on when the first transistor device is in an on-state.

The present disclosure is directed to a system and method for modulating a voltage output of a hybrid converter system having first and second set of Si-based power electronic devices coupled to first and second voltage source, respectively, and a first set of SiC-based power electronic devices coupled to the first and second sets of Si-based power electronic devices. The method includes switching between operational states of the hybrid converter system based on a desired voltage output, wherein each operational state includes one of the Si-based power electronic devices from the first and second sets of Si-based power electronic devices and one of the SiC-based devices from the first set of SiC-based power electronic devices being switched on and the remaining power electronic devices being switched off. Each SiC-based power electronic device of the first set of SiC-based power electronic devices switches at a higher frequency as compared to each Si-based power electronic device of the first and second sets of the Si-based power electronic devices.

A controller for a voltage converter, such as a buck converter, includes: a switching regulator circuit having high side and low side switches; comparators configured to compare a voltage of an output circuit to reference voltages; and a control circuit coupled to the current comparators, configured to receive outputs from the comparators, and configured to generate a control signal for alternatingly switching the high side and low side switches off and on, such that the low side switch is off when the high side switch is on, and the high side switch is off when the low side switch is on, and wherein the control circuit includes a latching circuit configured to latch a signal corresponding to at least one of the outputs from the comparators. A method of operating a buck converter in connection with a fixed high-frequency automotive radar system, with reliable over-current detection, is also disclosed.

The subject matter of this document can be embodied in a method that includes a voltage regulator having an input terminal and an output terminal. The voltage regulator includes a high-side transistor between the input terminal and an intermediate terminal, and a low-side transistor between the intermediate terminal and ground. The voltage regulator includes a low-side driver circuit including a capacitor and an inverter. The output of the inverter is connected to the gate of the low-side transistor. The voltage regulator also includes a controller that drives the high-side and low-side transistors to alternately couple the intermediate terminal to the input terminal and ground. The controller is configured to drive the low-side transistor by controlling the inverter. The voltage regulator further includes a switch coupled to the low-side driver circuit. The switch is configured to block charge leakage out of the capacitor during an off state of the low-side transistor.

A drive adjustment circuit for a power semiconductor element includes a differentiating circuit to differentiate a gate voltage of a power semiconductor element, a power supply to generate a comparison reference voltage, a comparator having a first input terminal connected to the differentiating circuit and a second input terminal receiving the comparison reference voltage, and a voltage adjusting circuit to adjust a gate voltage of the power semiconductor element based on an output of the comparator.

The present invention relates a low power control device using a sleep timer, and more particularly, to a low power control device using a controllable sleep timer which disables each component of a circuit while discharging an output voltage Vo using a control signal of a sleep timer in which a width of an OFF signal is larger than a width of an ON signal in a light load state and sequentially enables each component of the circuit while charging the output voltage in a predetermined order to minimize power consumption according to a loading level of a load.

A switching power supply device enables measures against noise even when the conducted EMI standard is expanded to a low frequency region. A jitter control circuit, configured so as to reduce generation of conducted EMI noise by giving jitter (frequency diffusion) to a switching frequency which drives a switching element, upon receiving a feedback voltage representing the condition of a load, expands the diffusion width of the switching frequency in stages in accordance with a shift from a fixed frequency region of a maximum oscillation frequency, through a frequency reduction region, to a fixed frequency region of a minimum oscillation frequency. By so doing, it is possible to obtain the effect of sufficient reduction of EMI noise even when an EMI noise measurement frequency range is expanded to a low frequency side.

An article for a power inverter, includes a multilayer printed circuit board having a first and second electrically conductive wiring layer and at least a first dielectric layer interposed between the first and second electrically conductive wiring layers. Each conductive wiring layer includes a common input and output line, the common input and output lines at least partially overlapping one another in a projection along a thickness of the multilayer printed circuit board. A set of input mounting pads is carried by the first common input line and a set of input mounting pads is carried by the second common input line, the input mounting pads of the second set of input mounting pads are interleaved with the input mounting pads of the first set of input mounting pads along a first axis. The article further includes a set output mounting pads carried by the common output line.