Abstract: In certain embodiments, a circuit comprises a first voltage source configured to provide a supply voltage at an output of the first voltage source for a subcircuit. The circuit further comprises at least one second voltage source configured to provide output voltage to supply the subcircuit when the first voltage source is deactivated. The circuit further comprises an evaluation circuit connectable to an output of the at least one second voltage source, to a control input of the at least one second voltage source, and to the output of the first voltage source. The evaluation circuit is configured to adjust, based on the supply voltage at the output of the first voltage source, an output voltage of the at least one second voltage source.

Abstract: A circuit, use, and method for operating a circuit is provided that includes a regulated first voltage source for providing a supply voltage at an output of the first voltage source for a subcircuit, an adjustable second voltage source for providing an output voltage to supply the subcircuit, and an evaluation circuit, which is connected to an output of the second voltage source and to a control input of the second voltage source and to the output of the first voltage source. Wherein the evaluation circuit is formed to adjust the output voltage of the second voltage source by means of a control signal at the control input of the second voltage source with evaluation of the supply voltage at the output of the first voltage source, and wherein the evaluation circuit and/or the second voltage source have a memory for storing values of the adjustment.

Abstract: A circuit, use, and method for operating a circuit is provided that includes a regulated first voltage source for providing a supply voltage at an output of the first voltage source for a subcircuit, an adjustable second voltage source for providing an output voltage to supply the subcircuit, and an evaluation circuit, which is connected to an output of the second voltage source and to a control input of the second voltage source and to the output of the first voltage source. Wherein the evaluation circuit is formed to adjust the output voltage of the second voltage source by means of a control signal at the control input of the second voltage source with evaluation of the supply voltage at the output of the first voltage source, and wherein the evaluation circuit and/or the second voltage source have a memory for storing values of the adjustment.

Abstract: A circuit, use, and method for operating a circuit is provided that includes a regulated first voltage source for providing a supply voltage at an output of the first voltage source for a subcircuit, an adjustable second voltage source for providing an output voltage to supply the subcircuit, and an evaluation circuit, which is connected to an output of the second voltage source and to a control input of the second voltage source and to the output of the first voltage source. Wherein the evaluation circuit is formed to adjust the output voltage of the second voltage source by means of a control signal at the control input of the second voltage source with evaluation of the supply voltage at the output of the first voltage source, and wherein the evaluation circuit and/or the second voltage source have a memory for storing values of the adjustment.

Abstract: A self-drilling screw including a drilling section (1; 4) adjoining a thread section (2; 5) of the screw and formed of first (11; 41) and second (12; 42) parts arranged one after another, within the drilling section (1; 4) having first and second cutting edges (15, 16; 45, 46) a radial extension of which is symmetrical with respect to the longitudinal axis of the screw, in the first, in a drilling direction, part of the drilling section (1; 4), with at least a portion of the second part (12, 42) of the drilling section (1, 4), which is located between the first part (11, 41) and the thread section (2; 5), having in a region of one of the first cutting edges (15; 45), a radial extension (R1; R3) corresponding, at most, to a half of a root diameter (D1; D3) of the thread section (2; 5), and with the second cutting edge (16, 46) having in the second part (12, 42) of the drilling section (1, 4), a radial extension (R2; R4) which is smaller than a half of a pitch diameter (D2; D4) of the thread section (2, 5) and