Abstract: A power supply with a DC-DC converter and a switching converter comprises an intermediate circuit and at least one output switching regulator. The intermediate circuit has an intermediate circuit voltage, and is connected to a supply voltage via the DC-DC converter. The at least one output switching regulator is connected to the intermediate circuit, and configured to supply, on the output side, a regulated output voltage.

Abstract: A power supply unit having a circuit for uninterrupted power supply comprises a first DC-DC converter arranged on the input side, at least one output configured for outputting an output DC voltage, and at least one first output switching controller. A DC link is arranged between the first DC-DC converter and the at least one output switching controller for regulating the at least one output DC voltage on the output side. The first DC link is connected to an energy storage module.

Abstract: A power supply unit with galvanic isolation for converting an input-side alternating or direct voltage into an output-side direct voltage in a clocked manner, includes a first primary circuit that has a series circuit consisting of a primary coil of a transformer and a first switch element and a first control circuit, at least one secondary circuit that has a secondary coil of the transformer and a smoothing capacitor that is parallel to an output direct voltage of the secondary circuit, a second primary circuit that has a series circuit consisting of a part of the primary coil and a second switch element for pulse length modulation of the voltage at the part of the primary coil, and a voltage evaluator that switches either the first or the second switch element for the next switching cycle depending on the level of the input voltage in order to obviate PFC circuits or a voltage multiplication.

Abstract: A method for determining the capacitance of an energy store of a direct current supply unit for an uninterruptible supply of direct current to a load, wherein the direct current supply unit includes at least one input for an input voltage, one output for a DC output voltage, and two identical energy stores which provide a standby DC output voltage during buffer mode, where a charged first energy store is fully discharged at predefined intervals via a load applied to the output, the first energy store is charged from the fully charged second energy store, the second energy store is fully charged again via the input, and where the capacitance taken from the second energy store is measured in the second step and/or the capacitance in the charged second energy store is measured in the third step to determine the actual capacitance without jeopardizing the buffer mode.

Abstract: A power supply unit with galvanic isolation for converting an input-side alternating or direct voltage into an output-side direct voltage in a clocked manner, includes a first primary circuit that has a series circuit consisting of a primary coil of a transformer and a first switch element and a first control circuit, at least one secondary circuit that has a secondary coil of the transformer and a smoothing capacitor that is parallel to an output direct voltage of the secondary circuit, a second primary circuit that has a series circuit consisting of a part of the primary coil and a second switch element for pulse length modulation of the voltage at the part of the primary coil, and a voltage evaluator that switches either the first or the second switch element for the next switching cycle depending on the level of the input voltage in order to obviate PFC circuits or a voltage multiplication.

Abstract: A power supply unit comprises at least one first converter unit and a second converter unit. The at least one first converter unit is controlled with a first controller and supplies at a first output at least one of a first output voltage that is regulated using a first voltage regulator and an output current that is regulated using a first current regulator. The second converter unit is controlled by a second controller and supplies at a second output at least one of an output voltage that is regulated using the second voltage regulator and an output current that is regulated using a second current regulator. The first and second outputs are connected in parallel for providing a higher output power, and at least one controller includes a supervision unit for recognizing an output-side parallel connection.

Abstract: A power supply device for redundantly supplying power to a load comprises a first supply unit, a second supply unit, a first DC-DC converter, a second DC-DC converter, a first output switching controller, and a second output switching controller. The first and second supply units are interconnected. The first output switching controller is connected on the load side of the first DC-DC converter, and the second output switching controller is connected on the load side of the second DC-DC converter. The outputs of the output switching controllers are interconnected.

Abstract: A converter for converting an input-side alternating current into an output-side DC current, with a power factor correction being provided, wherein the converter comprises a transformer having at least two serially arranged primary windings, a first switch is used to switch a storage capacitor unit in series with a first primary winding to the alternating current in a clocked manner via rectification elements and a second primary winding is switchable to the storage capacitor unit in a clocked manner by a second switch.

Abstract: A flux converter for converting an input-side alternating current into an output-side DC current, wherein a power factor correction is provided and the flux converter comprises a transformer having at least two serially arranged primary windings and a secondary winding wound in same direction. In addition, a first switch is used to switch a storage capacitor in series with a first primary winding to the alternating current in a clocked manner via rectification elements and a second primary winding can be switched to the storage capacitor in a clocked manner by a second switch.

Abstract: A power supply has a switch converter, a circuit breaker, a storage inductor and a peak current controller, wherein a first shunt resistor is arranged in a positive cable, a first operational amplifier is connected the first shunt resistor to detect a voltage drop across the first shunt resistor, an auxiliary measuring signal at the output of the first operational amplifier is reflected via a current mirror to ground, a second operational amplifier is connected to the second shunt resistor for impedance amplification such that a DC measuring signal is present at the output of the second operational amplifier, an RC element having a resistor and capacitor is connected to an inductor, the RC element being configured such that an AC measuring signal at the output of the RC element reproduces a current through the storage inductor, and where the AC measuring signal is added to the DC measuring signal.

Abstract: A power supply has a switch converter, a circuit breaker, a storage inductor and a peak current controller, wherein a first shunt resistor is arranged in a positive cable, a first operational amplifier is connected the first shunt resistor to detect a voltage drop across the first shunt resistor, an auxiliary measuring signal at the output of the first operational amplifier is reflected via a current mirror to ground, a second operational amplifier is connected to the second shunt resistor for impedance amplification such that a DC measuring signal is present at the output of the second operational amplifier, an RC element having a resistor and capacitor is connected to an inductor, the RC element being configured such that an AC measuring signal at the output of the RC element reproduces a current through the storage inductor, and where the AC measuring signal is added to the DC measuring signal.

Abstract: A power supply device for redundantly supplying power to a load comprises a first supply unit, a second supply unit, a first DC-DC converter, a second DC-DC converter, a first output switching controller, and a second output switching controller. The first and second supply units are interconnected. The first output switching controller is connected on the load side of the first DC-DC converter, and the second output switching controller is connected on the load side of the second DC-DC converter. The outputs of the output switching controllers are interconnected.

Abstract: A power supply with a DC-DC converter and a switching converter comprises an intermediate circuit and at least one output switching regulator. The intermediate circuit has an intermediate circuit voltage, and is connected to a supply voltage via the DC-DC converter. The at least one output switching regulator is connected to the intermediate circuit, and configured to supply, on the output side, a regulated output voltage.

Abstract: A power supply unit comprises at least one first converter unit and a second converter unit. The at least one first converter unit is controlled with a first controller and supplies at a first output at least one of a first output voltage that is regulated using a first voltage regulator and an output current that is regulated using a first current regulator. The second converter unit is controlled by a second controller and supplies at a second output at least one of an output voltage that is regulated using the second voltage regulator and an output current that is regulated using a second current regulator. The first and second outputs are connected in parallel for providing a higher output power, and at least one controller includes a supervision unit for recognizing an output-side parallel connection.

Abstract: A power supply unit having a circuit for uninterrupted power supply comprises a first DC-DC converter arranged on the input side, at least one output configured for outputting an output DC voltage, and at least one first output switching controller. A DC link is arranged between the first DC-DC converter and the at least one output switching controller for regulating the at least one output DC voltage on the output side. The first DC link is connected to an energy storage module.

Abstract: A flux converter for converting an input-side alternating current into an output-side DC current, wherein a power factor correction is provided and the flux converter comprises a transformer having at least two serially arranged primary windings and a secondary winding wound in same direction. In addition, a first switch is used to switch a storage capacitor in series with a first primary winding to the alternating current in a clocked manner via rectification elements and a second primary winding can be switched to the storage capacitor in a clocked manner by a second switch.

Abstract: A converter for converting an input-side alternating current into an output-side DC current, with a power factor correction being provided, wherein the converter comprises a transformer having at least two serially arranged primary windings, a first switch is used to switch a storage capacitor unit in series with a first primary winding to the alternating current in a clocked manner via rectification elements and a second primary winding is switchable to the storage capacitor unit in a clocked manner by a second switch.

Abstract: A capacitive load is controlled by charging and respectively discharging by way of a load current, which is allowed to oscillate between a maximum default and a minimum default. The maximum default increases monotonously in a first step, remains essentially constant in a second step, and decreases monotonously in a third step during a charging process. The minimum default decreases monotonously in a first step, remains essentially constant in a second step, and increases monotonously in a third step during a discharging process. A variable temporal overlap of the third step of the charging process and the first step of the subsequent discharging process is provided to set a required degree of charging. This results in a high level of resolution and reproducibility of the control.

Abstract: To simplify reliable detection of operating faults in a control unit for operating an electrical component (for example, a fuel injector), an end stage is provided on the output side and is provided with a first line section and a second line section for supplying current in a synchronized manner to an electrical consumer which can be connected to the two line sections via an external line pair. A detection coil configuration is provided for detecting operating faults on the basis of an evaluation of a current that is induced at the detection coil configuration. The detection coil configuration is flowed through by a magnetic flux that is composed of magnetic flow components which are caused by the current flows in the two line sections, and wherein mutual compensation of the magnetic flow components is provided in a normal mode.

Abstract: To simplify reliable detection of operating faults in a control unit for operating an electrical component (for example, a fuel injector), an end stage is provided on the output side and is provided with a first line section and a second line section for supplying current in a synchronized manner to an electrical consumer which can be connected to the two line sections via an external line pair. A detection coil configuration is provided for detecting operating faults on the basis of an evaluation of a current that is induced at the detection coil configuration. The detection coil configuration is flowed through by a magnetic flux that is composed of magnetic flow components which are caused by the current flows in the two line sections, and wherein mutual compensation of the magnetic flow components is provided in a normal mode.