Abstract:
An arrangement includes a housing and a printed circuit board (PCB) arranged vertically above the housing. The housing includes: at least one protrusion attached to sidewalls and arranged on an outside of the housing at a lower end with at least one first through hole provided in the protrusion; holding devices each arranged inside a first through hole and/or between the PCB and the first through hole; and fastening elements configured to attach the housing to a heat sink or base plate. Each holding device is configured to clamp a corresponding fastening element such that the fastening elements are secured in defined positions, and to align each fastening element with a different first through hole. The PCB includes second through holes each arranged vertically above and aligned with a different fastening element. A diameter of each second through hole is less than the largest diameter of the respective fastening element.
Abstract:
This disclosure is directed to circuits and techniques for detecting or responding to temperature of a power switch. A driver circuit for the power switch may be configured to deliver a modulation signal to a control node of the power switch to control on/off switching of the power switch, wherein the driver circuit is further configured to modulate an output impedance of the driver circuit at the control node, perform one or more voltage measurements while modulating the output impedance of the driver circuit, and control the power switch based at least in part on the one or more voltage measurements.
Abstract:
A semiconductor module is disclosed. In one example, the module includes a carrier, at least one semiconductor transistor disposed on the carrier, at least one semiconductor diode disposed on the carrier, at least one semiconductor driver chip disposed on the carrier, a plurality of external connectors, and an encapsulation layer covering the carrier, the semiconductor transistor, the semiconductor diode, and the semiconductor driver chip. The semiconductor transistor, the semiconductor diode, and the semiconductor driver chip are arranged laterally side by side on the carrier.
Abstract:
A printed circuit board (PCB) has a first, structured metalization arranged on its top side and at least one second metalization arranged below the first metalization in a vertical direction, parallel to the first metalization and insulated therefrom. Also on the PCB top side is a bare semiconductor chip having contact electrodes connected by bonding wires to corresponding contact pads of the first metalization on the PCB top side. A first portion of the contact electrodes and corresponding contact pads carry high voltage during operation. All high-voltage-carrying contact pads are conductively connected to the second metalization via plated-through holes. An insulation layer completely covers the chip and a delimited region of the PCB around the chip, and all high-voltage-carrying contact pads and the plated-through holes are completely covered by the insulation layer. A second portion of the contact electrodes and corresponding contact pads are under low voltages during operation.
Abstract:
A method for driving a controllable power semiconductor switch, having a first input terminal and first and second output terminals coupled to a voltage supply and a load, the first and second output terminals providing an output of the power semiconductor switch, includes adjusting a gradient of switch-off edges of an output current and an output voltage of the power semiconductor switch by a voltage source arrangement coupled to the input terminal. A gradient of switch-on edges of an output current and an output voltage is adjusted by a controllable current source arrangement that is coupled to the input terminal and generates a gate drive current. The profile of the gate drive current from one switching operation to a subsequent switching operation, beginning at a rise in the output current and ending at a decrease in the output voltage, is varied at most within a predefined tolerance band.