Abstract: The invention relates to a method for operating a brushless electric motor, the windings of which are controlled by an inverter using six switches, wherein the inverter comprises three outputs, which are associated with the windings of the electric motor, and wherein a respective power semiconductor switch is arranged between the output of the inverter and the windings, and wherein a detection unit for detecting defective switches, a unit for measuring the voltage at the outputs of the inverter, and a microcontroller for controlling switches are provided. The invention further relates to a device operating a brushless electric motor. In order not to damage the power semiconductor switches, according to the invention of the inverter is switched off by the microcontroller after a defective switch has been detected, such that no additional power is introduced in the windings (U, V, W) of the electric motor and the power semiconductor switches are opened in a predetermined motor angle position (?U, ?v, ?w).

Abstract: A circuit arrangement for an electrical machine having a plurality of stator windings, with each stator winding including at least a first winding phase and a second winding phase. The circuit arrangement includes at least a prespecified first and a prespecified second selection of in each case a plurality of half-bridges. A common connection of the two switching elements of the respective half-bridge of the first selection can be electrically coupled in each case to a connection of the first winding phase of the respectively associated stator winding. A common connection of the two switching elements of the respective half-bridge of the second selection can be electrically coupled in each case to a connection of the second winding phase of the respective associated stator winding.

Abstract: The invention relates to a method for operating a brushless electric motor, the windings of which are controlled by an inverter using six switches, wherein the inverter comprises three outputs, which are associated with the windings of the electric motor, and wherein a respective power semiconductor switch is arranged between the output of the inverter and the windings, and wherein a detection unit for detecting defective switches, a unit for measuring the voltage at the outputs of the inverter, and a microcontroller for controlling switches are provided. The invention further relates to a device operating a brushless electric motor. In order not to damage the power semiconductor switches, according to the invention of the inverter is switched off by the microcontroller after a defective switch has been detected, such that no additional power is introduced in the windings (U, V, W) of the electric motor and the power semiconductor switches are opened in a predetermined motor angle position (?U, ?v, ?w).

Abstract: A circuit arrangement for an electrical machine having a plurality of stator windings, with each stator winding including at least a first winding phase and a second winding phase. The circuit arrangement includes at least a prespecified first and a prespecified second selection of in each case a plurality of half-bridges. A common connection of the two switching elements of the respective half-bridge of the first selection can be electrically coupled in each case to a connection of the first winding phase of the respectively associated stator winding. A common connection of the two switching elements of the respective half-bridge of the second selection can be electrically coupled in each case to a connection of the second winding phase of the respective associated stator winding.

Abstract: The illuminated glove has an outside layer, an inside liner and a fibre-optic arrangement mounted there between. This fibre-optic arrangement comprises fibre-optic ribbons extending along the fingers of the glove under the outside layer. Portion of these ribbons are visible through openings in the outside layer. A light source is mounted at the base of the thumb. A power source including a battery and a pressure sensitive switch are mounted in the cuff of the glove. A plurality of optical fibres extend loosely over the back-of-the-hand portion and the hand-knuckle region of the glove between the light source and the fibre-optic ribbons. A slack or loose bend is provided in the plurality of optical fibres for reducing hand stiffness and fibre tension when the fingers of the glove are flexed. Preferably, the slack or the loose bend is an offset between and relative to the light source and the fingers.

Abstract: The illuminated glove has an outside layer, an inside liner and a fibre-optic arrangement mounted there between. This fibre-optic arrangement comprises fibre-optic ribbons extending along the fingers of the glove under the outside layer. Portion of these ribbons are visible through openings in the outside layer. A light source is mounted at the base of the thumb. A power source including a battery and a pressure sensitive switch are mounted in the cuff of the glove. A plurality of optical fibres extend loosely over the back-of-the-hand portion and the hand-knuckle region of the glove between the light source and the fibre-optic ribbons. A slack or loose bend is provided in the plurality of optical fibres for reducing hand stiffness and fibre tension when the fingers of the glove are flexed. Preferably, the slack or the loose bend is an offset between and relative to the light source and the fingers.