摘要:
A retaining facility for clearance-free fixing of a printed circuit board onto a one-dimensional curved surface is provided. In the direction of curvature of the one-dimensional curved surface, a tensile or compressive force acts on the printed circuit board or on at least one first connection device connected to the latter, with the printed circuit board being bent and pressed onto the curved surface. In this way the printed circuit board is held solidly and with little vibration on the surface even when acted on by centrifugal forces.
摘要:
A high-frequency x-ray generator having low high-voltage ripple at the x-ray tube with a small amount stored energy in the high-voltage circuit and low drive frequency has a series of secondary windings each connected to a high-voltage rectifier having a capacitor connected in parallel. These capacitors are connected in series for forming the x-ray tube voltage. Each secondary winding has a primary winding allocated to it. The primary windings in combination with delay capacitors form a delay line in which a traveling wave is generated by a primary voltage source.
摘要:
A high-voltage generator for high d.c. voltages, particularly for feeding an x-ray tube has secondary windings applied by a printed technique on printed circuit boards that are held at a common printed circuit board, and which are interconnected thereto in printed technique with components for producing the high-voltage.
摘要:
A three-phase rectifier circuit for a capacitive load wherein only small current harmonics occur has, at the rectifier input, an inductance and a capacitor arrangement that compensates the reactive power of the inductance. The capacitors can be individually switchable, for the regulation of the rectifier output voltage.
摘要:
A medical device includes an energy storage unit that is configured for being supplied with solar energy. The medical device is configured for an evaluation of a charging state of the storage unit according to a medical workflow and for the output of information related to the result of the evaluation or a signal related to the evaluation. A supply of energy is provided during the workflow.
摘要:
A capsule for endoscopic examinations and a method for assisting the advancement of the capsule through organs are provided. In addition to a device for advancing the capsule through an organ under investigation, the capsule is also provided with a device for generating movements of the capsule to reduce the edge friction impeding the advancement of the capsule. The device for generating movements of the capsule is activated using electromagnetic radiation irradiated from outside to a receiving system of the capsule. The device generates a movement, which helps overcome inhibiting frictional forces.
摘要:
The invention specifies a holding apparatus comprising a support element and a circuit board. A trench for receiving the circuit board is embodied in the support element. At least one first clamping element is arranged on one or both longitudinal sides of the circuit board and/or at least one second clamping element is arranged in the trench. As a result, the circuit board received by the trench is fixed in the trench in a clearance-free fashion.
摘要:
The invention specifies a holding apparatus comprising a support element and a circuit board. A trench for receiving the circuit board is embodied in the support element. At least one first clamping element is arranged on one or both longitudinal sides of the circuit board and/or at least one second clamping element is arranged in the trench. As a result, the circuit board received by the trench is fixed in the trench in a clearance-free fashion.
摘要:
A medical device includes an energy storage unit that is configured for being supplied with solar energy. The medical device is configured for an evaluation of a charging state of the storage unit according to a medical workflow and for the output of information related to the result of the evaluation or a signal related to the evaluation. A supply of energy is provided during the workflow.
摘要:
A retaining facility for clearance-free fixing of a printed circuit board onto a one-dimensional curved surface is provided. In the direction of curvature of the one-dimensional curved surface, a tensile or compressive force acts on the printed circuit board or on at least one first connection device connected to the latter, with the printed circuit board being bent and pressed onto the curved surface. In this way the printed circuit board is held solidly and with little vibration on the surface even when acted on by centrifugal forces.