Multi-port power adapters. At least one example is a method including: supplying a first bus voltage to a first device by way of a DC-DC converter coupled to a link voltage; supplying a second bus voltage to a second device by way of a second DC-DC converter coupled to the link voltage; converting an AC voltage to the link voltage by way of an AC-DC converter; selecting, by a shunt regulator, a setpoint for the link voltage based on the first bus voltage and the second bus voltage; and regulating the link voltage to the setpoint by the AC-DC converter.

The present disclosure relates to a semiconductor circuit breaker, and more specifically, to a semiconductor circuit breaker provided with a detachable interface module. The semiconductor circuit breaker, according to one embodiment of the present disclosure, comprises: a circuit breaker main body connected to a main circuit and provided with a module receiving unit on the outer surface thereof; and an interface module provided independently from the circuit breaker main body and detachably coupled to the module receiving unit. The circuit breaker main body comprises: a terminal cover rotatably coupled to a terminal unit of the circuit breaker main body; and an interlock member provided to the circuit breaker main body and restricting or releasing the opening of the terminal cover. The interface module comprises an interlock driving unit for operating the interlock member.

A transformer arrangement is provided. The transformer arrangement includes a transformer with a primary and a secondary winding and a chain link of switching blocks connected in series between one of the windings and a load, where the switching blocks comprise a first set of voltage contribution blocks and a second set of circuit breaker blocks, where the first set of voltage contribution blocks is configured to adjust a voltage output by the transformer with an offset voltage and the second set of circuit breaker blocks is configured to interrupt a current running through the chain link.

A current interrupting device includes: a current limiting element provided on a power supply path from a predetermined power supply to a load device, the current limiting element being configured to exhibit a current limiting action when current flowing the power supply path exceeds a first current threshold value; a current diversion path switch capable of switching on and off of an electric conduction of a current diversion path, the current diversion path switch being connected in parallel with the power supply path; and a controller configured to control on and off of the current diversion path switch, wherein, the controller is configured to: switch the current diversion path switch on from an off state when it is detected that current flowing the current limiting element is limited to a second current threshold value after the current flowing the current limiting element has exceeded the first current threshold value; and switch the current diversion path switch off again after a predetermined switched-on holding time has elapsed since the current diversion path switch has been switched on.

A mechanical cut-off apparatus of a high-voltage electric circuit includes: in a main electrical path a main mechanical switch; in a secondary electrical path, a secondary mechanical switch; a mechanical control configured such that, the secondary mechanical switch is brought to its mechanically open state after the main mechanical switch has been brought to its mechanically open state; the apparatus includes a transition dipole comprising a capacitance, the transition dipole arranged in series with the pair of secondary electrical contacts in the secondary electrical path, and in that the apparatus includes a controlled switch which, in an electrically closed state, creates inside the mechanical cut-off apparatus a bypass that short-circuits the capacitance of the transition dipole.

An electronic module is provided including power switches mounted on a circuit board and configured as an inverter circuit for an electric motor. A sliding member is coupled to an actuator. A power contact switch is provided including a first conductive body, a second conductive body, and a contact switch. The first and second conductive bodies are mounted on a first surface of the circuit board and include pins received through through-holes of the circuit board to make electrical contact with two conductive tracks on a second surface of the circuit board. The contact switch pivotably is secured to the first conductive body and pivotably moveable by the sliding member to make contact with the second conductive body with movement of the actuator. A flyback diode is electrically connected between the first and second conductive track on the second surface of the circuit board parallel to the power contact switch.

A circuit and method are disclosed enabling a direct current (DC) power source to power a load circuit designed for alternating current (AC) input. The circuit is arranged to be connected between a DC power source and a load circuit in which the load circuit includes an electric load and a switch with a mechanical contact in series with the load. The circuit comprises a contact opening detector arranged to detect an opening event of the switch contact and a damping component arranged to be triggered in response to the contact opening detector detecting a contact opening event. The triggered damping component causes a momentary lowering of a load circuit input voltage, such that the momentary lowering of the load circuit input voltage prevents the sustaining of an electric arc across the opened switch contact.

A current interrupting device includes a current limiting element on a power supply path from a predetermined power supply to a load device. The current limiting element is configured to exhibit a current limiting action when current flowing in the power supply path exceeds a first current threshold value. The current interrupting device further includes a current diversion path switch, and a controller programmed to control on and off of the current diversion path switch. The controller is programmed to switch a current diversion path switch on from an off state when it is detected that current flowing in the current limiting element is limited to a second current threshold value after the current flowing in the current limiting element has exceeded the first current threshold value, and switch the switch off again after a predetermined switched-on holding time has elapsed since the switch has been switched on.

Multi-port power adapters. At least one example is a method including: supplying a first bus voltage to a first device by way of a DC-DC converter coupled to a link voltage; supplying a second bus voltage to a second device by way of a second DC-DC converter coupled to the link voltage; converting an AC voltage to the link voltage by way of an AC-DC converter; selecting, by a shunt regulator, a setpoint for the link voltage based on the first bus voltage and the second bus voltage; and regulating the link voltage to the setpoint by the AC-DC converter.

A circuit breaker having a mechanical switch which is inserted into a main current path and has a fixed contact and a moving contact which is connected to a contact bridge mounted movably thereto. The circuit breaker has a drive unit which is operatively connected to the contact bridge, and which comprises a first drive unit and a second drive unit. The first drive unit is energized by means of a control circuit, and the second drive unit is inserted into the main current path. Further, the invention relates to a motor vehicle.