Abstract: A digital IC controller for switch mode power supplies, the IC controller having multiple inputs and multiple outputs as well as a digital interface. The IC controller can be configured using a configuration device in such a way that controller units and filter units preconfigured by the configuration device as well as other functions are selected and parameterized and are transferred to the IC controller using the digital interface.

Abstract: In a method suitable for tissue fusion or coagulation, after the start of treatment of the tissue, i.e., after completion of a first phase, a second phase is commenced, during which the biological tissue is treated for a certain specified process time with moderate energy input. The specification of a negative internal resistance of a supplying source enables the process in the second phase to have a treatment time that remains constant and thus avoids premature drying-out of the tissue. A sufficient and reliable bonding of the participating proteins in the moist milieu is reached.

Abstract: A high frequency surgery generator having an output circuit and a power oscillator for generating an HF output voltage. The power oscillator is designed to excite the output circuit at a first excitation frequency, which corresponds to a resonant frequency of the output circuit, in a first operating mode and to excite the output circuit at a second excitation frequency which differs from the first excitation frequency, which does not correspond to the resonant frequency of the output circuit, in a second operating mode.

Abstract: A supply device for a surgical apparatus for operating a surgical instrument that includes a control unit for controlling the surgical instrument, a memory unit for storing configuration data, and a mediating unit for allocating an adjustment value to a mathematical function to obtain a scaling factor, and methods of using such a supply device.

Abstract: A method for model-based diagnosis of a mechatronic system. A control unit within the mechatronic system performs error detection and an arithmetic unit outside of the mechatronic system performs error identification.

Abstract: A supply device for the operation of at least one medical instrument, in particular an electrosurgical instrument and/or a cryosurgical instrument and/or a water jet surgical instrument. The supply device includes a control unit for the control of the at least one medical instrument and a memory unit for the storage of configuration data which describe a state device with a plurality of states. The control unit is designed such that it reads in configuration data and converts the state device into a control program and controls the at least one medical instrument according to the control program. This ensures efficient control of medical instruments because the control programs used can be more efficiently checked for their correctness and updated accordingly.

Abstract: A method for manufacturing a coupled resonator device includes forming a first BAW-device on a first substrate, forming a second BAW-device on a second substrate, and bonding the first and the second BAW-device such that the bonded first and second BAW-device are sandwiched between the first and second substrate.

Abstract: An HF surgical device with an autostart function for cutting and/or coagulating biological tissue with HF current. The device comprises an HF generator for generating HF current, a selected output for connecting a monopolar/bipolar electrode to the HF surgical device, a first measurement device assigned to the output for measuring a first measured value for an impedance of the electrode connected to the output, a first comparator for comparing the first measured value with a first setpoint, for switching-off the first measurement devices and for switching-on a second measurement device if the first measured value is lower than the first setpoint, for measuring a second measured value for the impedance of the connected electrode and a second comparator for comparing the second measured value with a second setpoint and for switching-on the HF current for the output if the second measured value is lower than the second setpoint.

Abstract: A duplexer includes first and second acoustic filters and a phase shifter. The first acoustic filter is connected between an antenna and the transmitter, and has a first passband. The second acoustic filter is connected between the antenna and the receiver, and has a second passband. The phase shifter includes at least one series capacitor connected in series with the antenna and at least one shunt inductor connected between the at least one capacitor and ground. The phase shifter is connected between the antenna and the first filter when the first passband is higher than the second passband, and provides a negative phase shift of an output impedance of the first filter. The phase shifter is connected between the antenna and the second filter when the second passband is higher than the first passband, and provides a negative phase shift of an input impedance of the second filter.

Abstract: Supply units for providing a high-frequency RF voltage and an RF current to electrosurgical instruments so that they can be used for cutting and/or coagulating tissue, while providing regulation of the RF current and the RF voltage and providing a corresponding feedback for the treating physician. A supply unit includes an RF generator unit for generating the RF output voltage, a measuring unit for determining an electrical load while an RF output current is being applied, a signal unit for outputting a haptically perceivable (e.g., tactile) signal and a control unit that is in communicative connection at least with the measuring unit and the signal unit to activate the signal unit as a function of the electrical load.

Abstract: Until now, ohmic consumers have been used to abruptly complete the output signal in RF surgical generators. Considering an RF surgical generator comprising a power supply with at least one storage capacitor and a controllable switching device with at least one energy storage device ( e.g., a transformer) by which an RF output signal that can be delivered to an RF surgical instrument is generated, it is suggested herein that a regenerative device be provided between the energy storage device and the storage capacitor. Furthermore, a control mechanism is used for controlling the switching device and the regenerative device such a that, if the RF output signal is to be completed, the regenerative device is energized for at least part of the time, and the energy storage is at least partially discharged in the storage capacitor.

Abstract: A duplexer includes first and second acoustic filters and a phase shifter. The first acoustic filter is connected between an antenna and the transmitter, and has a first passband. The second acoustic filter is connected between the antenna and the receiver, and has a second passband. The phase shifter includes at least one series capacitor connected in series with the antenna and at least one shunt inductor connected between the at least one capacitor and ground. The phase shifter is connected between the antenna and the first filter when the first passband is higher than the second passband, and provides a negative phase shift of an output impedance of the first filter. The phase shifter is connected between the antenna and the second filter when the second passband is higher than the first passband, and provides a negative phase shift of an input impedance of the second filter.

Abstract: An electrosurgical generator for the treatment of biological tissue. The electrosurgical generator comprises a generator part which supplies a high-frequency (“HF”) treatment current with an HF voltage set according to a voltage control signal. A measuring device detects the HF treatment current and the HF voltage and generates corresponding current and voltage signals. The current signal and the voltage signal are fed to a conversion device which forms a real current signal corresponding to the real component of the HF treatment current. A regulation device compares the real current signal with a pre-settable target value and generates the voltage control signal on the basis of the comparison. The real component of the treatment current is determined and the generator part is adjusted so that said real component approximates to a pre-determined target value.

Abstract: A handrail (2) for an escalator or a moving sidewalk is designed such that the same consists only of a handle rail (3a) and a fitted tractive means (9a, 9b) and has guiding surfaces (11h-11n) which are complementary to guiding surfaces (5f-5m) on a top side (7) of a balustrade.

Abstract: In one aspect, the present invention is directed to a method for operating an electronically controlled internal combustion engine in a vehicle to perform at least one rationality check on at least one sensor to detect impending sensor failure and verify component functionality. The engine is equipped with an engine control system (ECS) having a memory and in electronic communication with various sensors. The sensors transmit data signals to the ECS indicative of associated engine and vehicle component functionality.

Abstract: A method for manufacturing a coupled resonator device includes forming a first BAW-device on a first substrate, forming a second BAW-device on a second substrate, and bonding the first and the second BAW-device such that the bonded first and second BAW-device are sandwiched between the first and second substrate.

Abstract: A method for model-based diagnosis of a mechatronic system. A control unit within the mechatronic system performs error detection and an arithmetic unit outside of the mechatronic system performs error identification.

Abstract: In a method for testing a plurality of devices, which are arranged on a wafer and connected to a common data line, wherein the devices are connectable to a test unit via the common data line, a connection is separated first between a defective device and the common data line, or an internal connection in the defective device is separated. Subsequently, the remaining devices are tested. Alternatively, instead of the connection between the defective device and the common data line, the connection between a defective device and a common or an individual supply line is separated.

Abstract: A pigment with a metallic lustre, comprising a wafer-like substrate made of aluminium dioxide having a thickness of more than 250 nm and less than 1 &mgr;m, which is fully enveloped by a metal layer.

Abstract: A method for releasable contact-connection of a plurality of integrated semiconductor modules on a wafer, each of which having a plurality of interconnected supply voltage terminals, includes the steps of providing a contacting card for applying external electrical signals to the semiconductor modules with contact elements for releasable electrical connection to terminal pads of the semiconductor modules, aligning the contacting card with the wafer, producing a releasable contact between terminal pads of the plurality of semiconductor modules and the contact elements of the contacting card, checking the contact quality for each of the semiconductor modules by applying a voltage to at least one of the supply voltage terminals of the semiconductor module through the contacting card, measuring the voltage present at a further one of the supply voltage terminals through the contacting card, and using the measurement result to assess whether or not the semiconductor module has correct contact.