Abstract: The invention relates to a range determining device for a voltage controller of an intermediate bus voltage (VIB) in an intermediate bus architecture power system, an intermediate bus architecture power system as well as to a method, computer program and computer program product of providing a range within which a controlled intermediate bus voltage in an intermediate bus architecture power system is allowed to vary. The range determining device obtains a range (R3) for the controlled intermediate bus voltage, which range has been determined based on statistical data corresponding to a current time interval of the control, and provides the range to the voltage controller for the voltage controller to control the intermediate bus voltage (VIB) within the determined range in a current time interval.

Abstract: An arrangement for feeding at least a part of a drilling machine in at least a first direction. A drilling system and a method are provided. The arrangement includes a first end portion, a second end portion, an outer cylinder, a piston and a piston rod. The piston and the piston rod are displaceably arranged in the outer cylinder such that the piston and the piston rod, the outer cylinder and the end portions delimits a first chamber and a second chamber for a pressure medium in the outer cylinder on a respective side of the piston. A valve is connected to the first chamber for reducing the pressure medium in the first chamber. The valve is arranged to be opened at an increased pressure in the second chamber.

Abstract: A switched mode power supply comprises a switched mode converter and a controller for controlling the switched mode converter, wherein the switched mode converter is provided for converting an input voltage to an output voltage and includes, on a primary side, a primary winding and a controllable switch based circuitry connecting the input voltage over the primary winding; and, on a secondary side, a secondary winding coupled to the primary winding, and a capacitive element connected over the secondary winding, wherein the output voltage is obtained as the voltage over the capacitive element. The primary winding comprises a first winding portion and at least one further winding portion.

Abstract: A switched mode power supply comprises a switched mode converter (12) and a controller for controlling the switched mode converter, wherein the switched mode converter is provided for converting an input voltage (Vin) to an output voltage (Vout) and includes, on a primary side, a primary winding (X1) and a controllable switch based circuitry (31) connecting the input voltage over the primary winding; and, on a secondary side, a secondary winding (X2) coupled to the primary winding, and a capacitive element (C) connected over the secondary winding, wherein the output voltage is obtained as the voltage over the capacitive element.

Abstract: A switched mode power supply (SMPS) comprising a controller configured to control switching of the SMPS to regulate an output voltage at an output of the SMPS based on a feedback signal that indicates the output voltage, and a voltage droop control circuit. The voltage droop control circuit comprises a voltage droop control signal generator that detects a voltage drop across a component of the SMPS that is indicative of a current flowing through the output of the SMPS during operation. The voltage droop control signal generator is an active device arranged to generate, based on the detected voltage drop, an output voltage droop control signal for causing the controller to adjust the regulation of the output voltage. The voltage droop control circuit further comprises a reference voltage generator arranged to bias at least one of the first and second inputs of the voltage droop control signal generator.

Abstract: A wireless communication device can provide an indication that its registration in a circuit-switched domain of a network is intended only for a short message service that is included in or accompanies a registration request, such as a combined registration for both the CS domain and a packet-switched (PS) domain. The device can also change a conventional order of its domain registrations, e.g., by performing a PS-domain registration before a CS-domain registration, when it will send SMS messages over the PS domain. The device can indicate its intention to use or support for SMS over the PS domain and/or be informed about network support for SMS over the PS domain before the UE attempts a network registration.

Abstract: A digital control unit generates a control signal to control a duty cycle of a switched mode power supply such that a faster response to an input voltage transient is achieved. The digital control unit comprises a feedback compensator, a feed forward compensator, a transient detector, and a controller. The transient detector receives a signal indicative of the input voltage of the switched mode power supply and detects transients on the received signal. The feedback compensator receives a signal indicative of the output voltage of the switched mode power supply and adjusts the control signal. The feed forward compensator receives a signal indicative of the input voltage of the switched mode power supply, performs a relatively fast, but coarse, adjustment of the control signal, and then performs a more accurate, but relatively slow, adjustment of the control signal.

Abstract: A control circuit generates a control signal to control a duty cycle of a switched mode power supply such that the magnetic flux density in the transformer is balanced, thereby preventing saturation of the transformer core. This permits the use of unsymmetrical duty cycles within the switch cycle. The control circuit comprises a flux density calculator and a regulator. The flux density regulator receives a signal indicative of the input voltage of the switched mode power supply and a feedback signal comprising the generated control signal, and it generates therefrom an average flux density signal. The regulator receives the generated average flux density signal and a signal indicative of the output voltage of the switched mode power supply, and generates the control signal in dependence upon the average flux density signal, the reference flux density signal, the signal indicative of the output voltage and a reference voltage signal.

Abstract: A control circuit, that controls the duty cycle of a switched mode power supply, comprises a reference voltage generator that, responsive to the input voltage exceeding a threshold value, generates a predetermined reference signal. Responsive to the input voltage not exceeding the threshold value, the reference voltage generator receives a signal indicative of an input voltage of the switched mode power supply and generates a variable reference signal dependent upon the input voltage. The control circuit further comprises an error signal generator that receives a signal indicative of an output voltage of the power supply and generates an error signal based on the reference signal generated by the reference voltage generator and based on the output voltage. The control circuit also includes a duty cycle control signal generator that generates the control signal to control the duty cycle of the power supply in dependence upon the error signal.

Abstract: New radical compounds, useful in the field of MRI imaging of formula (I). The radical compounds are in particular new triarylmethyl (“trityl”) radicals which can be used as polarizing agents for polarizing a molecule in the DNP process.

Abstract: A method implemented by a MS for controlling handover of the MS from a source cell of a source RAN operating in PS domain to a target cell of a target RAN operating in PS domain where the target RAN supports MOCN. The method includes receiving SI transmitted by a node of the source RAN. The SI includes a selected PLMN, LAC of the target cell, and RAC of the target cell. The MS executes handover to the target RAN. A target RAI is determined using the selected PLMN, LAC of the target cell, and RAC of the target cell from the SI transmitted by the node of the source RAN. The target RAI is compared to a registered RAI of the MS. The MS determines whether a RAU is needed in the target RAN based on the comparison of the target RAI to the registered RAI.

Abstract: An intermediate bus architecture power supply system including an output voltage feedback-regulated, isolated first stage switching voltage converter (SVC) such as an intermediate bus converter, connected via an intermediate voltage bus (IVB) to at least one second stage DC-to-DC voltage converter. The first stage SVC is configured to adjust its switching duty cycle to compensate for voltage fluctuations on the IVB. The voltage regulation mechanism of the first stage SVC may thus suppress oscillations in the IVB voltage which originate from the first stage SVC's input or from fluctuations in the system's load current, and consequently reduce electromagnetic interference as well as the amplitude of voltage and current fluctuations on the IVB.

Abstract: A method performed by a first network node of providing a last used PLMN ID in LTE to a second network node, the first network node and the second network node operating in a wireless communications network. The method comprises providing the last used PLMN ID in LTE of a wireless device in the wireless communications network, to the second network node, as soon as a Circuit Switched, CS, call due to a CSFB procedure has been setup. The providing of the PLMN ID is performed by one of: adding information about the last used PLMN ID in LTE to an existing message from the first network node to the second network node, and defining a new message from the first network node to the second network node. The new message comprises the last used PLMN ID in LTE.

Abstract: A method for preparing a current measuring arrangement of a switched mode power supply comprising a switched mode converter, and a controller for controlling the switched mode converter to convert an input voltage to an output voltage by means of controlling the duty cycle, is provided. A model, in which the output current of the converter is determined from variables and one or more model parameters, wherein the variables comprise the input voltage, the output voltage, and the duty cycle, is formed. The variables are varied while the output current is measured. The one or more model parameters is/are estimated from the varied variables and the measured output current by means of regression analysis and the model and the one or more estimated model parameters to be used by the current measuring arrangement during use of the switched mode power supply are stored.

Abstract: The embodiments herein relate to a method in a UE (101) for handling ESM information. The UE (101) supports reception of information to be used in determination of the ESM information. The UE (101) receives, from an MME (105), information about at least one supported EPS network feature which the UE (101) may use. The information is received before the UE (101) sends ESM information to the MME (105). Based on the received information, the UE (101) determines the ESM information for a PDN connection for the UE (101). The UE (101) sends the determined ESM information to the MME (105).

Abstract: The invention relates to a method of Magnetic Resonance (MR) detection, in particular 13C-MR detection, by using a diagnostic medium comprising a hyperpolarized ester, in particular ethyl acetoacetate. The method comprises the detection of the MR signal of a hyperpolarized 13C carboxylic ester and of its respective hyperpolarized metabolite.

Abstract: A control circuit operable to generate a control signal to control the duty cycle of a switched mode power supply is provided. The control circuit comprises an input terminal for receiving a signal indicative of an input voltage (Vin) of the switched mode power supply, and a reference signal generator to generate, in dependence upon the received signal, a reference signal (VR) that is a function of the input voltage (Vin). The control circuit further comprises an error signal generator to receive a signal indicative of an output voltage (Vout) of the switched mode power supply and to generate an error signal (VE) based on the reference signal (VR) and based on the output voltage, a low pass filter, and a duty cycle control signal generator to generate the control signal to control the duty cycle of the switched mode power supply in dependence upon the error signal (VE).

Abstract: In an intermediate bus architecture power system, a voltage controller that generates control signals for controlling an intermediate bus voltage (VIB) output from a first stage DC-to-DC power converter to at least one second stage DC-to-DC power converter via the intermediate voltage bus. A receiver receives values of the current input to the first stage converter, or the current and voltage output by the first stage converter. The controller determines a first value of an efficiency measure using the received values corresponding to a first VIB, and determines a second value of the efficiency measure for a second VIB higher than the first VIB.

Abstract: A control circuit for a switched mode power supply and a related method are provided for controlling switching elements in a power train of a switched mode power supply. The control circuit comprises a mode controller to monitor the output current to determine whether the output current exceeds a current threshold. The mode controller controls the switching controller to generate the switch control signals. When the current exceeds the current threshold, the power train operates in a continuous conduction mode, and when the output current has fallen to or below the current threshold, the operation of the power train is changed from the continuous conduction mode to a pulse skipping mode. The pulse skipping mode is entered from the continuous conduction mode and involves determining the amount of energy stored in a secondary circuit of the power train.

Abstract: An isolated fly-buck converter provided for converting an input voltage (Vin) to an output voltage (VS) comprises (i) on a primary side, a primary winding (X1) and a non-isolated buck (CP) connected in series, and a pair of switches (Q1, Q2), wherein the switches are switchable between a forward phase, in which the primary winding and the non-isolated buck are connected to the input voltage, and a fly-buck phase, in which the primary winding and the non-isolated buck are disconnected from the input voltage and are connected to one another in a closed circuit; and (ii) on a secondary side, a secondary winding (X2) coupled to the primary winding, and a first capacitive element (CS) connected over the secondary winding and a first rectifying element (D1) connected to the secondary winding to prevent current from being flown through the secondary winding during the forward phase, wherein the output voltage is achieved as the voltage over the first capacitive element.