Abstract: A photonic circuit includes a substrate, a plurality of waveguides mounted on the substrate, and a plurality of modulators for modulating light guided in the waveguides. The plurality of waveguides is formed from an electro-optically active material. The modulators are electro-optical modulators. Each modulator includes an electrode for generating an electrical field in a portion of a respective waveguide. Each modulator includes a conductor track for feeding an electrical modulation signal to the electrode. The photonic circuit is configured to reduce stray electrical fields in the plurality of waveguides by feeding the electrical modulation signals to the electrodes.

Abstract: An adapter device, including an AC connection including first AC contact and second AC contact; a DC connection including first DC contact and second DC contact; a first bridge branch including first switching device and second switching device, the first switching device and second switching device connected in series at a first bridge point, the first bridge point connected to first AC contact; a second bridge branch including third switching device and fourth switching device, third switching device and fourth switching device connected in series at a second bridge point, the second bridge point connected to second AC contact; and mode-setting device configured to predetermine a direction of power flow between AC connection and/or DC connection, first bridge branch and second bridge branch connected in parallel to the first DC contact and second DC contact, and different types of switching devices used as switching devices of a bridge branch.

Abstract: A DC-DC converter comprises at least a first and a second inductive element. Each inductive element comprises a transformer (312, 322), input terminals (314, 324, 315, 325) and output terminals (316, 326, 317, 327). A switching circuit (2) is arranged to supply a first alternating voltage to input terminals (314, 315) of the first inductive element, and a second alternating voltage to input terminals of the second inductive element (31, 32). A rectification circuit (4) is arranged to rectify a first and a second output voltage arising at output terminals (316, 317) of the first and second inductive elements (31, 32), respectively. One of the output terminals of the first inductive element (31) is capacitively coupled to one of the output terminals of the second inductive element (32).

Abstract: An adapter device, including an AC connection including first AC contact and second AC contact; a DC connection including first DC contact and second DC contact; a first bridge branch including first switching device and second switching device, the first switching device and second switching device connected in series at a first bridge point, the first bridge point connected to first AC contact; a second bridge branch including third switching device and fourth switching device, third switching device and fourth switching device connected in series at a second bridge point, the second bridge point connected to second AC contact; and mode-setting device configured to predetermine a direction of power flow between AC connection and/or DC connection, first bridge branch and second bridge branch connected in parallel to the first DC contact and second DC contact, and different types of switching devices used as switching devices of a bridge branch.

Abstract: A DC-DC converter comprises at least two inductive elements comprising a transformer, input terminals to a primary winding of the transformer, output terminals to a secondary winding of the transformer, and at least one converter inductance in the path of a current through one of the these terminals, a switching circuit arranged to supply a first and second alternating voltage to the input terminals of the first and second inductive element, respectively, a rectification circuit arranged to rectify a first and a second output voltage arising at output terminals of the first and second inductive elements, respectively, one of the output terminals of the first inductive element being capacitively coupled to one of the output terminals of the second inductive element.

Abstract: A high-voltage generator for an X-ray device includes an input-side inverter unit, an output-side rectifier unit and a transformer connected between the inverter unit and the rectifier unit. The inverter unit is configured to generate two inverter voltages that are phase-shifted with respect to each other. These inverter voltages are transformed by the transformer into two rectifier voltages that are fed to the rectifier unit such that in no-load operation, one of the two rectifier voltages is proportional to the sum of the inverter voltages while the other of the two rectifier voltages is proportional to the difference between the inverter voltages.

Abstract: A power converter circuit includes a chopper circuit configured to receive an input voltage and generate a chopper voltage with an alternating voltage level based on the input voltage, an autotransformer including at least one tap, the autotransformer being coupled to the chopper circuit and configured to generate a tap voltage at the at least one tap, and a selector circuit configured to receive a plurality of voltage levels. At least one of these the voltage levels is based on the at least one tap voltage. The selector circuit is further configured to generate a selector output voltage based on the plurality of voltage levels such that the selector circuit selects two of the plurality of voltage levels and switches at a switching frequency between the two voltage levels.

Abstract: A high-voltage generator for an X-ray device includes an input-side inverter unit, an output-side rectifier unit and a transformer connected between the inverter unit and the rectifier unit. The inverter unit is configured to generate two inverter voltages that are phase-shifted with respect to each other. These inverter voltages are transformed by the transformer into two rectifier voltages that are fed to the rectifier unit such that in no-load operation, one of the two rectifier voltages is proportional to the sum of the inverter voltages while the other of the two rectifier voltages is proportional to the difference between the inverter voltages.

Abstract: A power converter circuit includes a chopper circuit configured to receive an input voltage and generate a chopper voltage with an alternating voltage level based on the input voltage, an autotransformer including at least one tap, the autotransformer being coupled to the chopper circuit and configured to generate a tap voltage at the at least one tap, and a selector circuit configured to receive a plurality of voltage levels. At least one of these the voltage levels is based on the at least one tap voltage. The selector circuit is further configured to generate a selector output voltage based on the plurality of voltage levels such that the selector circuit selects two of the plurality of voltage levels and switches at a switching frequency between the two voltage levels.