Abstract: An AC/DC converter includes: an AC circuit breaker, configured as a hybrid circuit or semiconductor circuit breaker; a rectifier; a smoothing capacitor; a semiconductor switch connected in series with the smoothing capacitor; and a first isolation relay for galvanic isolation. One input of the AC circuit breaker forms an AC input of the converter. One output of the AC circuit breaker is connected with an input of the rectifier. The smoothing capacitor, and the first semiconductor switch, connect a first output of the rectifier with its second output. The first output of the rectifier is connected, with one input of the first isolation relay. The one output of the first isolation relay forms a first DC output of the AC/DC converter. The AC circuit breaker, the first semiconductor switch, and the first isolation relay are interconnected.

Abstract: A low-voltage protective device includes: at least one outer conductor path from an outer conductor power terminal of the low-voltage protective device to an outer conductor load terminal of the low-voltage protective device; a neutral conductor path from a neutral conductor terminal of the low-voltage protective device to a neutral conductor load terminal of the low-voltage protective device; a mechanical bypass switch arranged in the outer conductor path; a first semiconductor circuit arrangement connected in parallel to the mechanical bypass switch, the first semiconductor circuit arrangement having at least one power semiconductor, such as an IGBT, with a control terminal, such as a gate terminal; an electronic control unit; a current-measurement arrangement arranged in the outer conductor path, connected to the electronic control unit of the protective device; and at least one voltage measurement arrangement for detecting a Miller effect-induced voltage spike at the at least one power semiconductor.

Abstract: A DC circuit breaker includes: a first current section of a first electrical polarity from a first supply terminal of the DC circuit breaker to a first load terminal of the DC circuit breaker; a second current section of a second electrical polarity from a second supply terminal of the DC circuit breaker to a second load terminal of the DC circuit breaker; a mechanical bypass switch arranged in the first current section or the second current section, the mechanical bypass switch having at least one bypass switch excitation coil; a first semiconductor circuit arrangement connected in parallel with the mechanical bypass switch; an electronic control unit of the DC circuit breaker for actuating the first semiconductor circuit arrangement; a second semiconductor circuit arrangement to be actuated by the electronic control unit, which second semiconductor circuit arrangement is connected to the bypass switch excitation coil by circuitry.

Abstract: A circuit breaker includes: a live line between a live supply connecting terminal and a live load connecting terminal; a neutral line between a neutral supply connecting terminal and a neutral load connecting terminal; a processing unit; a mechanical switch located in the live line, which mechanical switch is controllable by the processing unit; a trigger for interrupting the live line and/or the neutral line; and an auxiliary line connecting the neutral line with the live line between the mechanical switch and the live load connecting terminal, the auxiliary line including serially a current limiting resistor and a control switch controllable by the processing unit. The processing unit controls the control switch and to open and close at least the mechanical switch for a removal of oxidation layers of mechanical contacts of at least the mechanical switch by controlled arcing.

Abstract: A low-voltage protective switching device includes: at least one line conductor length extending from a line conductor supply connection of the low-voltage protective switching device to a line conductor load connection of the low-voltage protective switching device; a neutral conductor length extending from a neutral conductor connection of the low-voltage protective switching device to a neutral conductor load connection of the low-voltage protective switching device; a mechanical bypass switch and a first mechanical circuit breaker disposed in series in the line conductor length; a second mechanical circuit breaker disposed in the neutral conductor length; a first semiconductor switching arrangement disposed in parallel to the bypass switch; and an electronic control unit that presettably actuates the bypass switch, the first mechanical circuit breaker, the second mechanical circuit breaker, and the first semiconductor switching arrangement.

Abstract: A circuit breaker includes: at least one switching path of a first terminal of the circuit breaker to a second terminal of the circuit breaker; at least one semiconductor switch arranged in the switching path; a semiconductor version switch for predefinably interrupting the switching path upon actuation by a release of the circuit breaker; a characteristic variable unit connected to the release; and a current measuring arrangement for ascertaining a current profile through the at least one semiconductor switch, the current measuring arrangement being connected with the characteristic variable unit. The characteristic variable unit correlates a characteristic variable with a junction temperature of the at least one semiconductor switch that is ascertained from the current profile through the at least one semiconductor switch.

Abstract: A DC circuit breaker includes: a first current section of a first electrical polarity from a first supply terminal of the DC circuit breaker to a first load terminal of the DC circuit breaker; a second current section of a second electrical polarity from a second supply terminal of the DC circuit breaker to a second load terminal of the DC circuit breaker; a mechanical bypass switch arranged in the first current section or the second current section, the mechanical bypass switch having at least one bypass switch excitation coil; a first semiconductor circuit arrangement connected in parallel with the mechanical bypass switch; an electronic control unit of the DC circuit breaker for actuating the first semiconductor circuit arrangement; a second semiconductor circuit arrangement to be actuated by the electronic control unit, which second semiconductor circuit arrangement is connected to the bypass switch excitation coil by circuitry.

Abstract: A low-voltage circuit breaker includes: at least one external conductor section from an external conductor power terminal of the low-voltage circuit breaker to an external conductor load terminal of the low-voltage circuit breaker; a neutral conductor section from a neutral conductor terminal of the low-voltage circuit breaker to a neutral conductor load terminal of the low-voltage circuit breaker; a mechanical bypass switch arranged in the external conductor section; a semiconductor circuit arrangement switched in parallel to the bypass switch; an electronic control unit; and a first current measuring arrangement arranged in the external conductor section, the first current measuring arrangement including a first shunt, which is connected to the electronic control unit. The electronic control unit actuates the mechanical bypass switch and the semiconductor circuit arrangement upon detecting a prespecifiable overcurrent that includes a short circuit current, by the current measuring arrangement.

Abstract: A low-voltage circuit breaker device includes: a first outer conductor line and at least one first bypass line, the first outer conductor line being arranged in the circuit in parallel to the at least one first bypass line; a first mechanical bypass switch arranged in the first outer conductor line; first semiconductor circuit assembly connected in parallel to the first bypass switch; a second semiconductor circuit assembly arranged in the circuit in series with the first bypass switch and parallel to the first semiconductor circuit assembly in the first outer conductor line; a first current measuring assembly, which is connected to a first electronic control unit, arranged in the first outer conductor line, the first electronic control unit being arranged to actuate the first bypass switch, the first semiconductor circuit assembly, and the second semiconductor circuit assembly; and a second mechanical bypass switch arranged in the first bypass line.

Abstract: A mechatronic module includes: a hybrid circuit arrangement having at least one interrupter, which interrupter includes at least one first mechanical switch and at least one first semiconductor circuit arrangement. The hybrid circuit arrangement is situated on a first face of a ceramic substrate, a second face, opposite the first face, of the ceramic substrate being connected to a metal plate. A housing shell is fastened to the metal plate and encloses the ceramic substrate and the hybrid circuit arrangement. The metal plate and the housing shell form a housing of the mechatronic module. Interstices within the housing are filled at least in some regions with a potting compound.

Abstract: A hybrid circuit configuration, particularly a protection circuit configuration, includes: at least one first external conductor segment; a first mechanical bypass switch in the first external conductor segment; a first semiconductor switch configuration connected in parallel to the first bypass switch; a first electronic control unit for activating the first semiconductor switch configuration; and a bypass switch activation unit, to which bypass switch activation unit at least one field coil of the bypass switch is connected. At least one control terminal of the bypass switch activation unit is connected to the first electronic control unit. The electronic control unit and/or the bypass switch activation unit controls the at least one field coil of the bypass switch in a preconfigured way either with at least one first electric current or one second electric current, the one second electric current being greater than the at least one first electric current.

Abstract: A low-voltage circuit breaker device includes: at least one outer conductor path from an outer conductor supply terminal of the low-voltage circuit breaker device to an outer conductor load terminal of the low-voltage circuit breaker device; a neutral conductor path from a neutral conductor terminal of the low-voltage circuit breaker device to a neutral conductor load terminal of the low-voltage circuit breaker device; a mechanical by-pass switch arranged in the outer conductor path; a semiconductor circuit arrangement of the low-voltage circuit breaker device connected in parallel to the bypass switch; an electronic control unit; and a current measurement arrangement arranged in the outer conductor path and connected to the electronic control unit. The electronic control unit actuates the mechanical by-pass switch and the first semiconductor circuit arrangement upon detection of a predefined overload current, namely a short-circuit current, by the current measurement arrangement.

Abstract: A low-voltage circuit breaker device includes: at least one external conductor section from an external conductor supply connection of the low-voltage circuit breaker device to an external conductor load connection of the low-voltage circuit breaker device; a mechanical bypass switch arranged in the external conductor section; a first semiconductor circuit arrangement connected in parallel to the mechanical bypass switch; an electronic control unit; a current measuring arrangement arranged in the external conductor section, which current measuring arrangement is connected to the electronic control unit, the electronic control unit controlling the mechanical bypass switch and the first semiconductor circuit arrangement when a given overcurrent, namely a short-circuit current, is detected by the current measuring arrangement; and a second semiconductor circuit arrangement arranged in the external conductor section in series with the mechanical bypass switch and in parallel to the first semiconductor circuit arr

Abstract: A circuit breaker is proposed, comprising a live line and a neutral line and a semiconductor switching unit located in the live line, the circuit breaker further comprises a bypass line, which is connected in parallel to the semiconductor switching unit, with a first mechanical switch and a second mechanical switch located in the bypass line, with the first mechanical switch connected in series to the second mechanical switch, whereby the semiconductor switching unit, the first mechanical switch and the second mechanical switch are controlled by a processing unit of the circuit breaker, which is embodied to send a first opening command to the first mechanical switch in case of a short-circuit-detection, and sending a second opening command to the second mechanical switch a time-delay after sending of the first opening command.

Abstract: A circuit breaker includes: a live line between a live supply connecting terminal and a live load connecting terminal; a neutral line between a neutral supply connecting terminal and a neutral load connecting terminal; a processing unit; a mechanical switch located in the live line, which mechanical switch is controllable by the processing unit; a trigger for interrupting the live line and/or the neutral line; and an auxiliary line connecting the neutral line with the live line between the mechanical switch and the live load connecting terminal, the auxiliary line including serially a current limiting resistor and a control switch controllable by the processing unit. The processing unit controls the control switch and to open and close at least the mechanical switch for a removal of oxidation layers of mechanical contacts of at least the mechanical switch by controlled arcing.

Abstract: A circuit-breaker includes: an input terminal for connecting the circuit-breaker to a voltage source; an output terminal for connecting t the circuit-breaker to a load; a switching circuit having an input side connected to the input terminal and having an output side; and a separation switching unit connected to the output terminal and to the output side of the switching circuit. The switching circuit includes a first current path and a second current path, the first and the second current path being connected in parallel between the input side and the output side. The switching circuit includes a varistor device and a controllable switching component, the varistor device and the controllable switching component being connected in series between the first and the second current path.

Abstract: A low-voltage protective switching device includes: at least one outer conductor path from an outer conductor supply terminal of the low-voltage protective switching device to an outer conductor load terminal of the low-voltage protective switching device; a neutral conductor path from a neutral conductor terminal of the low-voltage protective switching device to a neutral conductor load terminal of the low-voltage protective switching device; a mechanical bypass switch disposed in the outer conductor path; a first semiconductor circuit arrangement of the low-voltage protective switching device connected parallel to the mechanical bypass switch; an electronic control unit; a current measuring arrangement disposed in the outer conductor path, the current measuring arrangement being connected with the electronic control unit; and a first mechanical disconnecting switch disposed in series to the first semiconductor circuit arrangement and in parallel to the mechanical bypass switch.

Abstract: A low-voltage protection switch unit, such as a motor protection switch, includes: at least an external conductor line, from an external line supply terminal of the low-voltage protection switch unit to an external line load terminal of the low-voltage protection switch unit; a neutral conductor line, from a neutral conductor terminal of the low-voltage protection switch unit to a neutral conductor load terminal of the low-voltage protection switch unit; a mechanical bypass switch arranged in the external conductor line; a semiconductor circuit arrangement connected in parallel with the mechanical bypass switch; an electronic control unit for actuating the mechanical bypass switch and the semiconductor circuit arrangement in a specifiable manner; and a current measurement arrangement connected to the electronic control unit, the current measurement arrangement being arranged at least in the external conductor line.

Abstract: A low-voltage protective device includes: at least one outer conductor path from an outer conductor power terminal of the low-voltage protective device to an outer conductor load terminal of the low-voltage protective device; a neutral conductor path from a neutral conductor terminal of the low-voltage protective device to a neutral conductor load terminal of the low-voltage protective device; a mechanical bypass switch arranged in the outer conductor path; a first semiconductor circuit arrangement connected in parallel to the mechanical bypass switch, the first semiconductor circuit arrangement having at least one power semiconductor, such as an IGBT, with a control terminal, such as a gate terminal; an electronic control unit; a current-measurement arrangement arranged in the outer conductor path, connected to the electronic control unit of the protective device; and at least one voltage measurement arrangement for detecting a Miller effect-induced voltage spike at the at least one power semiconductor.

Abstract: A low-voltage protective device includes: at least one first outer conductor path from an outer conductor power supply connection of the low-voltage protective device to an outer conductor load connection of the low-voltage protective device; a mechanical bypass switch arranged in the outer conductor path; a first semiconductor circuit arrangement of the low-voltage protective device connected in parallel to the mechanical bypass switch, the first semiconductor circuit arrangement including at least one power semiconductor; a control and driver unit for driving the first semiconductor circuit arrangement with a control voltage, the control and driver unit being connecting the first semiconductor circuit arrangement, in a normal operation of the low-voltage protective device, with a first voltage value of the control voltage, the first voltage value being less than a peak control voltage of the power semiconductor. The control and driver unit is configured to increase the control voltage.