Abstract: The disclosure relates to a roof covering element, a solar roof covering element, to an assembly of solar roof covering elements, and to a method for producing a solar roof covering element. A roof covering element and a solar roof covering element are to be provided for a solar roof system, which can be produced by means of a cost-effective mass production process and which enable a simple and cost-effective roof mounting.

Abstract: The invention relates to a roof covering element, a solar roof covering element, to an assembly of solar roof covering elements, and to a method for producing a solar roof covering element. A roof covering element and a solar roof covering element are to be provided for a solar roof system, which can be produced by means of a cost-effective mass production process and which enable a simple and cost-effective roof mounting.

Abstract: A concrete roof tile having a panel-shaped base body made from cast material, is characterized in that the base body is furnished with at least two holes in which wires are routed. This facilitates the use thereof in conjunction with a solar panel. In a method for manufacturing a concrete roof tile, a clay or concrete roof tile is digitised, the model is modified in such manner that a flat surface is created on an upper side thereof to enable a solar module to be mounted thereon, a mould is prepared from the model, in which concrete roof tile base bodies are cast, and one solar module is fastened to each base body.

Abstract: A power supply power supply (30) comprising a DC voltage supply, a control unit and a plurality of high voltage channels (33a-33d) is suggested. Each high voltage channel (33) includes an inverter (IKTV), a resonance circuit, a transformer (TR), and a rectifier (RECT). The resonance circuit cooperates with the inverter (INV). The inverter (INV) is formed by a first switching unit and a second switching unit whereby a voltage of a first polarity can be applied to the resonance circuit in a first switching state, whereas a voltage of a second polarity can be applied to the resonance circuit in a second switching state. The switching states can be switched by the control unit in such a manner that in a first mode of an operation for high output power, the output power can be adjusted by changing the switching frequency in the range of the resonance frequency.

Abstract: A power supply power supply (30) comprising a DC voltage supply, a control unit and a plurality of high voltage channels (33a-33d) is suggested. Each high voltage channel (33) includes an inverter (IKTV), a resonance circuit, a transformer (TR), and a rectifier (RECT). The resonance circuit cooperates with the inverter (INV). The inverter (INV) is formed by a first switching unit and a second switching unit whereby a voltage of a first polarity can be applied to the resonance circuit in a first switching state, whereas a voltage of a second polarity can be applied to the resonance circuit in a second switching state. The switching states can be switched by the control unit in such a manner that in a first mode of an operation for high output power, the output power can be adjusted by changing the switching frequency in the range of the resonance frequency.

Abstract: Use of a compound according to Formula [I]: or a salt thereof to produce a cooling sensation, wherein R1 and R2 are independently selected from hydrogen or halogen atoms; hydroxy, cyano, nitro, mercapto, carbonyl, sulfone and carboxy groups; or optionally substituted alkyl, alkenyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, amino, siloxy, ester and heterocyclic groups, with the proviso that when R1 is 2-hydroxyphenyl, R2 is other than 3-nitrophenyl.

Abstract: Use of a compound according to Formula [I]: 1