Abstract: The specification provides arrangements including an electronic controller unit, ECU, comprising a heatsink, a first printed circuit board, PCB; and a second printed circuit board, PCB. A plurality of components are provided located on said PCBs. The heatsink is arranged between the first and second PCBs and is thermally coupled to the components to provide cooling. The heatsink further comprises an aperture extending through a body of the heatsink. The first PCB is directly connected to the second PCB by a board-to-board, B2B, connector configured to electrically and/or communicatively connect the PCBs located above and below the heatsink. The specification also provides arrangements of a heatsink provided for use within an ECU.

Abstract: Disclosed is an electrical power switching circuit. The electrical power switch circuit includes a first semiconductor switch having a first control input and a second semiconductor switch having a second control input. The first semiconductor switch and the second semiconductor switch are connected in series. The electrical power switch circuit includes a comparator configured to compare a first voltage to a second voltage and to output a first electrical signal if the first voltage exceeds the second voltage by a first predetermined threshold and to output a second electrical signal if the second voltage exceeds the first voltage by a second predetermined threshold. The electrical power switch circuit includes a combiner configured to combine the first signal and the second signal and to feed a combined signal to the first and second control inputs of the first and second semiconductor switches.

Abstract: Disclosed is an electrical power switching circuit. The electrical power switch circuit includes a first semiconductor switch having a first control input and a second semiconductor switch having a second control input. The first semiconductor switch and the second semiconductor switch are connected in series. The electrical power switch circuit includes a comparator configured to compare a first voltage to a second voltage and to output a first electrical signal if the first voltage exceeds the second voltage by a first predetermined threshold and to output a second electrical signal if the second voltage exceeds the first voltage by a second predetermined threshold. The electrical power switch circuit includes a combiner configured to combine the first signal and the second signal and to feed a combined signal to the first and second control inputs of the first and second semiconductor switches.

Abstract: The specification provides arrangements including an electronic controller unit, ECU, comprising a heatsink, a first printed circuit board, PCB; and a second printed circuit board, PCB. A plurality of components are provided located on said PCBs. The heatsink is arranged between the first and second PCBs and is thermally coupled to the components to provide cooling. The heatsink further comprises an aperture extending through a body of the heatsink. The first PCB is directly connected to the second PCB by a board-to-board, B2B, connector configured to electrically and/or communicatively connect the PCBs located above and below the heatsink. The specification also provides arrangements of a heatsink provided for use within an ECU.