摘要:
A switching regulator for generating a regulated output voltage comprises a charging switch, a network with a coil, a capacitor and a diode as well as a control to open and close the charging switch. On the output side, the network has a positive output rail and a negative output rail, wherein the output voltage to be regulated is applied between the positive output rail and the negative output rail. The control is formed to control a change-over switch to connect the control input of the charging switch either to the positive output rail or the negative output rail via a potential coupling means. Thus, for controlling the switch, no individual potential has to be generated, but the potential at the positive output rail or the negative output rail, which is anyway applied, is used for controlling the charging switch. Thereby, the inventive switching regulator can be structured in a simple way and, additionally, provides defined and fast startup without requiring additional startup circuits.
摘要:
A switching regulator for generating a regulated output voltage comprises a charging switch, a network with a coil, a capacitor and a diode as well as a control to open and close the charging switch. On the output side, the network has a positive output rail and a negative output rail, wherein the output voltage to be regulated is applied between the positive output rail and the negative output rail. The control is formed to control a change-over switch to connect the control input of the charging switch either to the positive output rail or the negative output rail via a potential coupling means. Thus, for controlling the switch, no individual potential has to be generated, but the potential at the positive output rail or the negative output rail, which is anyway applied, is used for controlling the charging switch. Thereby, the inventive switching regulator can be structured in a simple way and, additionally, provides defined and fast startup without requiring additional startup circuits.
摘要:
A control device for controlling a charging switch in a switching regulator with an inductance, a filter capacitance and a diode comprises a clock generator for providing an operating clock, an output voltage detection means and an inductance current detection means, as well as a comparator for comparing the detection signals generated by the two detection means. The charging switch is switched on by an event in the clock and switched off when the comparator determines a predetermined relation between the two detection signals. The voltage detection signal is formed to have an inverted curve in relation to the detected output voltage, such that when the output voltage to be detected increases the detection signal falls and vice versa. Thus, a stable and simple regulation of the output voltage across a current locked loop is possible, where no filtering of an actual value has to be performed. Thus, a stable current locked loop with simple structure is obtained in a wide range.
摘要:
A control device for controlling a charging switch in a switching regulator with an inductance, a filter capacitance and a diode comprises a clock generator for providing an operating clock, an output voltage detection means and an inductance current detection means, as well as a comparator for comparing the detection signals generated by the two detection means. The charging switch is switched on by an event in the clock and switched off when the comparator determines a predetermined relation between the two detection signals. The voltage detection signal is formed to have an inverted curve in relation to the detected output voltage, such that when the output voltage to be detected increases the detection signal falls and vice versa. Thus, a stable and simple regulation of the output voltage across a current locked loop is possible, where no filtering of an actual value has to be performed. Thus, a stable current locked loop with simple structure is obtained in a wide range.
摘要:
A circuit for processing a supply voltage with a voltage peak to obtain an output signal with reduced or eliminated voltage peak, comprises a first capacitance and a second capacitance, wherein a controllable resistor is formed between the first and second capacitance in series to the same, which has a high resistance when a voltage at the first capacitance is smaller than an input voltage set value, and whose resistance is reduced to a lower resistance when the input voltage at the first capacitance is higher than or equal to the input voltage set value, so that finally, when the output voltage at the second capacitance reaches an output voltage set value, the controllable resistor is substantially no longer visible, but connects the two capacitances in parallel. The circuit is particularly advantageous as filter capacitance in a switching regulator, to achieve fast starting up of the switching regulator on the one hand and, on the other hand, simultaneously, fast charging of the second capacitance, wherein the energy of the voltage peak is used for charging the second capacitor more quickly.
摘要:
A circuit for processing a supply voltage with a voltage peak to obtain an output signal with reduced or eliminated voltage peak, comprises a first capacitance and a second capacitance, wherein a controllable resistor is formed between the first and second capacitance in series to the same, which has a high resistance when a voltage at the first capacitance is smaller than an input voltage set value, and whose resistance is reduced to a lower resistance when the input voltage at the first capacitance is higher than or equal to the input voltage set value, so that finally, when the output voltage at the second capacitance reaches an output voltage set value, the controllable resistor is substantially no longer visible, but connects the two capacitances in parallel. The circuit is particularly advantageous as filter capacitance in a switching regulator, to achieve fast starting up of the switching regulator on the one hand and, on the other hand, simultaneously, fast charging of the second capacitance, wherein the energy of the voltage peak is used for charging the second capacitor more quickly.
摘要:
Magnetic field sensor having a vertical Hall sensor element arranged in a semiconductor substrate, and an exciting conductor arrangement having at least one exciting conductor, the exciting conductor being arranged within an exciting conductor plane which is spaced apart, in parallel to the substrate surface, from the vertical Hall sensor element at a vertical distance h1 having a tolerance range Δh1 which is due to the manufacturing process, and which exciting conductor further has a lateral distance d1 as an offset from a center position which is located, in relation to the substrate surface, perpendicularly to the vertical Hall sensor element, and the lateral distance d1 being dimensioned such that a vertical calibration component B1x of a magnetic flux density B1 created by the exciting conductor arrangement in the vertical Hall sensor element changes by less than 5% within the tolerance range Δh1 for the vertical distance h1.
摘要:
An electrode composed of a mixture of electrochemically active particles and metal powder compressed onto a metal foil strip can be inductively sintered without localized overheating by passing the coated strip through a hairpin-shaped inductor provided with widened portions facing the edge regions of the strip, so as to locally increase the cross section of the hairpin in the portions of the hairpin that are opposed to the edge regions of the electrode strip. This arrangement counteracts the tendency of the edge regions to overheat and thermally damage the active material.
摘要:
Electromagnetic device for fusion and interfacial agitation of diphase systems, particularly for the acceleration of metallurgic or pyrochemical processes, which includes for example a crucible to contain a diphase system, an inductor surrounding this crucible, and a circuit for the supply of the inductor by a current with two components, namely a high frequency component which melts the phases of the system and a low frequency component which agitates the interface of the phases.
摘要:
A method transmits configuration data in a memory arrangement. The method includes controlling, with a control unit of the memory arrangement, data transmissions via a configuration data bus in the memory arrangement, the controlling including controlling transmitting configuration data of the memory arrangement for storing in at least two register units of the memory arrangement via the configuration data bus from the control unit to each of the at least two register units. The method includes storing, in the at least two register units, the configuration data. The at least two register units have a same bus address identifying the at least two register units on the configuration data bus. The method includes requesting, with the control unit, configuration data stored in the at least two register units. The method includes transmitting, under control of the control unit, the stored configuration data via the configuration data bus from only one of the at least two register units to the control unit.