Abstract: A method of monitoring the temperature of a solid state switch in an aircraft solid state power controller. The method includes: measuring an electric current (I) flowing through the solid state switch; calculating, based on the measured electric current (I), an introduced electric power (Pel) that is introduced into the solid state switch within the predefined time period (?t); calculating an increase in temperature (?T) of the solid state switch that is caused by the introduced electric power (Pel); calculating an actual temperature (Tact) of the solid state switch by adding the calculated increase in temperature (?T) to an ambient temperature (Tamb); and comparing the calculated actual temperature (Tact) with a predefined temperature threshold (Tth) and determining an overheat condition if the calculated actual temperature (Tact) exceeds the predefined temperature threshold (Tth).

Abstract: An aircraft ground fault detection circuit comprises: a first electric power supply line, and a second electric power supply line; a first shunt resistor arranged in the first electric power supply line; a second shunt resistor arranged in the second electric power supply line; a first voltage detector configured for detecting a first voltage drop over the first shunt resistor; a second voltage detector configured for detecting a second voltage drop over the second shunt resistor; an electric test current power supply for applying an electric test voltage to the first and second electric power supply lines causing an electric test current to flow through the first and second electric power supply lines and the first and second shunt resistors; and a controller, which is configured for receiving voltage signals provided by the first and second voltage detectors indicating the first and second voltage drops, and determining a difference between the resistivities of the first and second shunt resistors from said

Abstract: An aircraft solid state power controller for controlling the supply of electric power from an aircraft electric power supply to an electric load comprises a power input node, which is electrically connectable to an output node of the aircraft electric power supply; a power output node, which is electrically connectable to an electric load and configured for selectively supplying electric power to the electric load; an electric load switch, which is configured for controlling the supply of electric power from the power input node to the power output node; a shunt resistor, which is arranged between the electric load switch and the power output node so that any electric current that is supplied from the aircraft solid state power controller via the power output node to the electric load passes through the shunt resistor; and a control device comprising a voltage sensor that is configured for detecting a voltage drop over the shunt resistor.

Abstract: An aircraft solid state power controller for controlling electric power in an aircraft comprises: a solid state power switching device for switching the electric power, the solid state power switching device comprising an input node, an output node and a control node; a first bypass diode electrically connected between the input node of the solid state power switching device and the control node of the solid state power switching device; and a switchable bypass electrically connected between the input node of the solid state power switching device, and he output node of the solid state power switching device. The switchable bypass comprises a second bypass diode and a bypass switch. An electric bypass current (Ibypass) flowing through the second bypass diode is switchable by switching the bypass switch on and off. The aircraft solid state power controller further comprises a bypass controller configured for switching the bypass switch on/off.

Abstract: An electric safety circuit for an aircraft DC power supply circuit includes a first electric line connecting a first electric pole of a main DC power supply with a first electric connector of an electric load; a second electric line connecting a second electric pole of the main DC power supply with a second electric connector of the electric load; at least one electric safety switch arranged in at least one of the first and second electric lines and configured for selectively interrupting any electric current flowing through said at least one electric line; a first electric coil arranged in the first electric line.

Abstract: An electric safety circuit for an aircraft DC power supply circuit includes a first electric line connecting a first electric pole of a main DC power supply with a first electric connector of an electric load; a second electric line connecting a second electric pole of the main DC power supply with a second electric connector of the electric load; at least one electric safety switch arranged in at least one of the first and second electric lines and configured for selectively interrupting any electric current flowing through said at least one electric line; a first electric coil arranged in the first electric line.

Abstract: The present invention relates to a power semiconductor chip module, comprising a substrate having a top side and a bottom side; at least one first power semiconductor device attached to the top side of the substrate; at least one first conductive structure thermally and electrically connecting the first power semiconductor device to the top side of the substrate; at least one second power semiconductor device attached to the bottom side of the substrate; and at least one second conductive structure connecting the second power semiconductor device to the bottom side of the substrate.

Abstract: A control circuit configured to supply a control voltage to a control terminal (G) of a solid state solid state switching device of a solid state power controller. The control circuit comprises: a primary controller operative to supply a primary control voltage to the control terminal (G) of the solid state switching device; and an auxiliary circuit configured to supply an auxiliary control voltage to the control terminal (G) of the solid state switching device in case the primary controller falls into an inoperative condition.

Abstract: Disclosed is a solid state power controller configured to supply electric power from an AC power supply to at least one load via at least one power distribution channel, the at least one power distribution channel comprising a primary solid state switching device and a secondary solid state solid state switching device connected in series. The solid state power controller includes a primary control terminal driver configured to supply a primary control voltage to the control terminal (G) of the primary solid state switching device with respect to a reference potential (R) and a secondary control terminal driver configured to supply a secondary control voltage to the control terminal (G) of the secondary solid state switching device.

Abstract: A power distribution system configured to supply electric power from a power supply to at least one load, includes at least two solid state power controllers connected in parallel, each solid state power controller includes: a solid state switching device having a first terminal (D) connected to the power supply, and a second terminal (S) connected to the load, and is configured to switch between an OFF operation mode in which the second terminal (S) is electrically disconnected from the power supply, and an ON operation mode in which the second terminal (S) is electrically connected to the power supply. The system also includes a load current detection unit configured to detect a load current through the solid state switching device.

Abstract: The present invention relates to a power semiconductor chip module, comprising a substrate having a top side and a bottom side; at least one first power semiconductor device attached to the top side of the substrate; at least one first conductive structure thermally and electrically connecting the first power semiconductor device to the top side of the substrate; at least one second power semiconductor device attached to the bottom side of the substrate; and at least one second conductive structure connecting the second power semiconductor device to the bottom side of the substrate.

Abstract: A control circuit configured to supply a control voltage to a control terminal (G) of a solid state solid state switching device of a solid state power controller. The control circuit comprises: a primary controller operative to supply a primary control voltage to the control terminal (G) of the solid state switching device; and an auxiliary circuit configured to supply an auxiliary control voltage to the control terminal (G) of the solid state switching device in case the primary controller falls into an inoperative condition.

Abstract: A control circuit is configured to apply a drive voltage to a solid state switching device comprising a first terminal (D), a second terminal (S) and a control terminal (G), the solid state switching device configured to switch, according to the drive voltage applied to the control terminal (G), between an OFF operation mode in which the second terminal (S) is electrically disconnected from an electrical supply voltage applied to the first terminal (D), and an ON operation mode in which the second terminal (S) is electrically connected to the electrical supply voltage applied to the first terminal (D) such as to connect a load circuit to the electrical supply voltage.

Abstract: Disclosed is a solid state power controller configured to supply electric power from an AC power supply to at least one load via at least one power distribution channel, the at least one power distribution channel comprising a primary solid state switching device and a secondary solid state solid state switching device connected in series. The solid state power controller includes a primary control terminal driver configured to supply a primary control voltage to the control terminal (G) of the primary solid state switching device with respect to a reference potential (R) and a secondary control terminal driver configured to supply a secondary control voltage to the control terminal (G) of the secondary solid state switching device.

Abstract: A power distribution system configured to supply electric power from a power supply to at least one load, includes at least two solid state power controllers connected in parallel, each solid state power controller includes: a solid state switching device having a first terminal (D) connected to the power supply, and a second terminal (S) connected to the load, and is configured to switch between an OFF operation mode in which the second terminal (S) is electrically disconnected from the power supply, and an ON operation mode in which the second terminal (S) is electrically connected to the power supply. The system also includes a load current detection unit configured to detect a load current through the solid state switching device.

Abstract: An electrical system includes a first circuit breaker that digitally senses a first current to a first load, and a second circuit breaker that digitally senses a second current to a second load and provides an output to the first circuit breaker. The first circuit breaker determines an average current based upon the first sensed current and the output from the second circuit breaker, and the first and second circuit breakers terminate power to the first and second loads if the average current is greater than a threshold value.

Abstract: A control circuit is configured to apply a drive voltage to a solid state switching device comprising a first terminal (D), a second terminal (S) and a control terminal (G), the solid state switching device configured to switch, according to the drive voltage applied to the control terminal (G), between an OFF operation mode in which the second terminal (S) is electrically disconnected from an electrical supply voltage applied to the first terminal (D), and an ON operation mode in which the second terminal (S) is electrically connected to the electrical supply voltage applied to the first terminal (D) such as to connect a load circuit to the electrical supply voltage.

Abstract: A multi-phase power control switch has multiple power controller channels, each of which includes at least one power controller having a microprocessor. Each of the microprocessors cross communicates with each other of the microprocessors using a data bus.

Abstract: A control architecture for a power controller has a power line input, a plurality of power channels that are operable to control power flow from the power line input to one or more loads, an isolated power supply, and a microcontroller module that controls each of the multiple power channels.

Abstract: A configurable power switching controller includes multiple power channels and a programming connector that connects the load outputs of a subset of the multiple power channels thereby creating at least one merged power channel.