WO2020152340A1 - Système d'alimentation électrique et procédé d'alimentation en énergie régulée d'au moins un consommateur électrique - Google Patents

Système d'alimentation électrique et procédé d'alimentation en énergie régulée d'au moins un consommateur électrique Download PDF

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Publication number
WO2020152340A1
WO2020152340A1 PCT/EP2020/051782 EP2020051782W WO2020152340A1 WO 2020152340 A1 WO2020152340 A1 WO 2020152340A1 EP 2020051782 W EP2020051782 W EP 2020051782W WO 2020152340 A1 WO2020152340 A1 WO 2020152340A1
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WO
WIPO (PCT)
Prior art keywords
current
power supply
supply device
value
current limit
Prior art date
Application number
PCT/EP2020/051782
Other languages
German (de)
English (en)
Inventor
Nicola HERBST
Jochen Zeuch
Bruno Muth
Original Assignee
Phoenix Contact Gmbh & Co.Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102019101939.7A external-priority patent/DE102019101939A1/de
Priority claimed from BE20195049A external-priority patent/BE1026994B1/de
Application filed by Phoenix Contact Gmbh & Co.Kg filed Critical Phoenix Contact Gmbh & Co.Kg
Publication of WO2020152340A1 publication Critical patent/WO2020152340A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers

Definitions

  • the invention relates to a power supply device and a method for the regulated energy supply of at least one electrical consumer.
  • An industrial control cabinet is usually powered by a dangerous voltage of 120VAC / 230VAC, a battery
  • a control cabinet such as a controller (for example a PLC), sensors and / or
  • SELV Safety Extra Low Voltage
  • the task of a power supply is the dangerous one Separate input voltage V IN from the touchable output voltage V OU T safely and a constant
  • the line losses PV In order to keep the losses over the supply voltage lines low, correspondingly large cable cross sections are required, with the line losses PV according to the equation
  • a power supply is usually with a transformer operated at mains frequency or a
  • the transformer galvanically separates the input voltage from the output voltage and reduces the input voltage with the ratio of the turns.
  • the size of the transformer depends on the frequency of the AC voltage. Accordingly, at
  • Mains frequency 50/60 Hz operated transformers are significantly larger, heavier and more expensive than with a much higher frequency (e.g. 20 kHz) clocked transformers of a switching power supply.
  • 50Hz / 60Hz transformer power supplies can usually not regulate the voltage, but transform it with a fixed ratio and are assigned to the respective
  • Power supply device known, which can be designed as a switching power supply.
  • Power supply device has a device for limiting the output current of the
  • Power supply device to a first predetermined value. Furthermore, a device is provided which, in response to the detection of an electrical fault, sets the output current for a predetermined time to a second predetermined value which is greater than the first value. In addition, a limiting device is provided, which the output current after the
  • predetermined time is suddenly formed to the first predetermined value.
  • WO 2015/082207 A1 is a
  • Power supply device has one
  • circuit breakers can be triggered magnetically quickly.
  • Time of several seconds can be reduced.
  • Fig. 1 an exemplary system is shown, which, shown as block diagrams, one
  • Power supply device 100 at the output of which, for example, two electrical consumers RI and RN are connected in parallel, each with the
  • Output voltage V 0UT of the power supply device 100 are fed.
  • the power supply device 100 is one of the
  • Component dimensioning corresponding current ready or available which is specified as the nominal current I N0M of the switching power supply. Will be more than that by consumers
  • the maximum output current I MAX is only slightly above the nominal current, and advantageously between 110% and 150% of the nominal current INOM
  • Short-term current increase which provide a maximum of a current up to 2.5 times the nominal current for a few seconds.
  • FIG. 2 the exemplary system shown in FIG. 1 has been modified in such a way that a protective device Fl to F N is connected upstream of each consumer RI to R N. As seen in FIG. 2, the power supply device 100 is different
  • Power supply device 100 are supplied centrally.
  • an input-side fuse can be connected in at least some of the consumers, which should trigger in the event of internal short circuits.
  • the invention has for its object a
  • output short circuit can trigger both a magnetically triggered protective device and a thermally triggered protective device.
  • FIG. 1 shows an exemplary power supply device
  • Fig. 3 is a block diagram of that shown in FIG. 1
  • FIG. 4 shows an exemplary circuit structure of the one in FIG.
  • Fig. 5 a voltage divider for providing the
  • Fig. 6 shows an exemplary current limiting characteristic according to the invention
  • Fig. 7 shows an analog circuit arrangement for generating
  • Fig. 8 shows a digital circuit arrangement for generating current limiting values, for example in FIG.
  • the power supply device 100 is, for example, a primary clocked AC / DC switching power supply, the
  • Power supply device can also be designed as a DC or AC switching power supply.
  • the primary-clocked switching power supply 100 can be fed on the primary side from a DC input voltage V IN, which can be applied to input terminals 101, 102 and measured by a voltmeter (not shown) for further use.
  • V IN DC input voltage
  • an input AC voltage V INAC can be connected via input terminals 103, 104 V INAC to a primary side
  • Rectifier Dl can be connected, wherein the input terminals 103, 104 and the rectifier Dl can be omitted in a DC / DC switching power supply.
  • the input voltage V IN is smoothed with a capacitor CI, which is connected in parallel to the input terminals 101, 102, and
  • one connection of a primary winding of the transformer Tri to the input terminal 101 and the other connection of the primary winding of the transformer Tri is via one
  • Circuit breaker Sl which is clocked at high frequency, connected to the input terminal 102. Furthermore, a
  • Temperature sensor 150 can be provided, which can measure the temperature of the transformer Tri.
  • the circuit breaker S1 is arranged on the primary side
  • Control device 201 controlled which works for example as a pulse width modulator.
  • the control device 201 is connected to the input terminals 101 and 102.
  • the control signal for the control device 201 is provided by a control device 202 arranged on the secondary side generated and via a separation circuit 106 to the
  • Isolation circuit 106 may be an optocoupler OC1.
  • Isolation circuit 105 and transformer Tri thus provide galvanic isolation, i.e. they separate that
  • Switched-mode power supply 100 in one primary side and one
  • the diode D10 is preferably a
  • the voltage smoothed by the capacitor CIO is made available as output voltage V 0U T at the output of the power supply device 100.
  • the control device 202 preferably detects the
  • Power supply device 100 and regulates to a constant output voltage V 0U T in normal operation. It should already be mentioned at this point that the control device 202 can be designed to determine the average current load of the output current I 0U T from the detected
  • Current measuring device 142 which can be electrically connected to the control device 202, can be measured.
  • the control device 202 preferably has one
  • Control and / or evaluation device for example the microcontroller shown in FIG. 8, with which the
  • Current measuring device 142 can be connected.
  • the output voltage V 0U T can be measured with a voltage measuring device 141, which can be electrically connected to the control device 202.
  • the microcontroller shown in FIG. 8 can preferably also be connected to the voltage measuring device 141
  • Voltage measuring device 140 which can also be connected to the microcontroller shown in FIG. 8, can be provided, which measures the input voltage V IN .
  • the switching power supply 100 can according to known
  • Switching power supply 100 have several switching stages in series connection.
  • An upstream PFC stage is known which ensures a sinusoidal input current consumption.
  • Other basic circuit concepts such as 2-transistor converters or a parallel connection of the switching stages as
  • Fig. 3 shows a galvanically isolated switching power supply 100.
  • this can also be a non-galvanically isolated switching power supply, e.g. a step-down converter, step-up converter or an inverse converter.
  • the circuit breaker S1 is a semiconductor switch that can be switched on and off regardless of the switch technology used and can e.g. as a MOSFET or
  • Bipolar transistor or IGBT or GAN-FET or SiC-FET can be realized.
  • the separating device 106 functioning as a feedback element can also act as the actual one Optocouplers as well as magnetic couplers can be realized.
  • the circuit breaker S1 can be activated, for example, hard switching with PWM pulse width modulation or
  • the switching power supply 100 can be sinusoidal
  • the switching power supply 100 can be controlled both analog and digital. With constant input voltage V IN , the detection of the output voltage and the
  • FIG. 4 shows in particular an exemplary implementation of the control device 202. If the switched-mode power supply 100 is viewed from a control point of view of the output variables “constant voltage” and “current limitation”, this exists
  • Voltage measuring device 141 or current measuring device 142 measured. These signals are optionally forwarded to the secondary control device 202 in an amplified manner.
  • the secondary control device 202 has
  • At least two regulators namely a voltage regulator 302 and a current regulator 301.
  • Both controllers 301 and 302 can be implemented discretely as so-called PI controllers.
  • the exemplary current controller 301 has an operational amplifier ICH, at whose non-inverting input a setpoint IOUTLIM is present and at its inverting input a voltage signal corresponding to the current output current is applied, which is tapped, for example, via a shunt resistor R13 and then via an amplifier ICI2 and one to it Series connected resistor RI1 to the
  • the exemplary voltage regulator 302 has an operational amplifier ICV1, at whose non-inverting input a setpoint IOUTNOM is present and at its inverting input a voltage corresponding to the current output voltage is present, which voltage is connected, for example, to the output terminals of the power supply device 100
  • the voltage divider is tapped and then applied to the inverting input via an amplifier.
  • Voltage divider can have two resistors R11 and R12
  • the output of the operational amplifier ICV1 is connected in series from a resistor R6 and a capacitor C3 to the inverting input
  • the output signals of the two controllers 302 and 301 are linked via a diode D vi or Du OR and, if necessary, via the optocoupler OC1 to the primary side
  • the OR combination of the two output signals ensures that the controller that has the larger error signal, in the example shown, the operational amplifier ICV1 of the voltage regulator 302 or the operational amplifier ICH of the current controller 301 with the lower output voltage limits the control device 201 or that
  • a setpoint VOUTNOM for the voltage regulator 302 and a setpoint IOUTLIM serving for the current limitation for the current regulator 201 can, for example, by means of a
  • adjustable voltage divider can be specified.
  • a suitable exemplary voltage divider is shown in FIG. 5.
  • the voltage divider can be replaced by a
  • a resistor RI10 a resistor Rill and a potentiometer RI12 can be formed.
  • the setpoint VOUTNOM can be set with a potentiometer RV12, while the current limitation, i.e. the setpoint IOUTLIM internally with a trim potentiometer RI12
  • the voltage regulator shown in FIG. 5 can be part of the control device 202.
  • Setpoints can be set with fixed resistors. Also a setpoint specification from timers or one
  • the current limitation of the control device 202 and in particular of the current controller 302 is modified such that, for example, in the event of a short-circuit on the output side, for example in a supply line or in one of the consumers, for example the consumer RI in FIG. 2, for example the protective device Fl is preferably fast and
  • the protective device Fl can be a line circuit breaker with a magnetic and thermal release mechanism or a magnetic release fuse and a separate thermal release fuse.
  • Control device 202 is designed to briefly provide an output current IOUT that is clearly above the nominal current INOM. Of this, the actual regulation generally remains. unchanged.
  • the setpoint specification IOUTLIM is changed so that the current ILIM provided is significantly increased for a certain time. If this current, which is above the nominal current, is actually required, it is used to prevent overloading of consumers and
  • the power supply device can be flexible the ambient temperature and / or the current input voltage and / or component temperatures and / or the average current load react to
  • Step-like course which the control device 202 or the current controller 301 can take into account for limiting the output current, is shown in FIG. 6.
  • Other current limiting characteristics that have a section with a negative slope that can be adjusted
  • the total duration for example from tLl to tL3, may have the control device 202
  • a first current limit value IL1 is continuous in time and value or continuous in time and is discreet in value up to a second current limit value IMAX above the adjustable one
  • the power supply device 100 can have an interface 160, via which a first Current limit value for the current IL1 and second
  • Current limiting values IL1, 112, IL3, which act as setpoints for the current regulator 301, can also be set, for example, via potentiometers or resistors, as is shown by way of example in FIGS. 5 and 7.
  • the times tLl, tL2 and tL3, at which the setpoints are lowered, can be optionally through
  • the power supply device 100 can output the current corresponding to that shown by way of example in FIG. 6
  • the first current limit IL1 is set to 5-10 times the rated current of the circuit breaker, for a period of approx. 5-15ms. After that, the electricity provided is reduced to the lower
  • Current value IL2 limited, for example to trigger a quick fuse within approx. 20ms.
  • the current provided is limited to the even lower current value IL3, for example to trigger a slow fuse.
  • the current can then reach the usual maximum Output current IMAX or, for example, can also be limited to a current, for example to support the starting of difficult loads or the rapid charging of (storage) capacitors.
  • the trigger times can be found in the data sheets or
  • the series of standards are specified: The miniature circuit breakers are specified in the EN 60898 series, the fuses in EN60127.
  • the components of a power supply are usually permanently designed for the nominal output current at maximum ambient temperature and can handle higher peak currents
  • Output voltage VOUT converts the power supply device, in particular on the primary side, to a lower power compared to a higher-impedance short circuit with a higher output voltage VOUT.
  • the resistance in the event of a short circuit is largely determined by the lead resistance.
  • the input voltage can also be taken into account. Especially with DC / DC converters with lower
  • Input voltage can change with higher output voltage, e.g. high impedance short circuit, a significantly higher one
  • the provided output current ILIM can be influenced by e.g. ambient temperature TA,
  • the limit values can occur multiple times and by e.g. several temperature sensors 150 to 152 with different weightings are detected. Depending on the circuit concept, it may also be necessary to take additional parameters into account.
  • the following basic circuit devices which are shown by way of example in FIGS. 7 and 8, represent a corresponding control for generating the current limit value IOUTLIM, which is applied as a setpoint to the non-inverting input of the operational amplifier ICH.
  • IOUTLIM current limit value
  • FIGS. 7 and 8 circuit devices 500 and 600 are each designed to generate the current limiting characteristic shown by way of example in FIG. 6. It should also be noted that the circuit devices 500 and 600 are implemented in the power supply device and can be part of the control device 202 or the controller 301.
  • the current limit values and times are again e.g. adjustable via potentiometer.
  • Sensor circuit 401 can e.g. reinforced
  • Component temperatures influence the output signal.
  • Input voltage or the average current load are indicated in the sensor circuits 400 and 402.
  • Circuit device for providing a
  • Circuit device 500 for setting the current limit value can become very complex, a digital solution of a circuit device with a microprocessor can optionally or additionally be used, which is shown in FIG. 8 and is provided with reference number 600.
  • a microprocessor or microcontroller m ⁇ 3 which may also regulate the switching power supply 100, detects the electrical parameters of the switching power supply 100, such as the current output voltage VOUTACT or the current output current IOUTACT, which are measured, for example, by the voltage measuring device 141 or by the current measuring device 142.
  • the microcontroller can also process pC sensor data such as the aforementioned temperatures of the environment and / or components of the
  • the power supply device 100 Take into account the power supply device 100, which are measured, for example, by means of the temperature sensors 150 to 152.
  • the fixed limit values such as current surge limits and time periods e.g. via a PC or a smartphone, the
  • Power supply device 100 or the PC have any interface, for example the interface 160.
  • the pC of the circuit device 600 can be designed to determine, for example, the average current utilization in response to the detected output current I 0UT Z U and taking into account the
  • Ambient temperature and / or component temperatures and / or the input voltage and / or the determined average current load and further variables each have a maximum pulse duration t Li , t L2, t L3 for one
  • the microcontroller can be designed to fully calculate the current limiting characteristic curve, which is shown by way of example in FIG. 6.
  • the user can alternatively according to the
  • Plant structure such as the wiring and the respective
  • Pulse durations can be specified via the interface 160.
  • the microcontroller generates the current limiting characteristic shown in FIG. 6 in response to the
  • microcontroller can, for example, execute firmware and under
  • the pC of the circuit device 600 or a separate control and / or evaluation device can e.g. monitor the component temperatures and / or the input voltage level and / or the ambient temperature and / or the average current load and limit the duration of the current surge in good time so that when a limit value is reached the
  • Power supply device 100 can deliver correspondingly lower current pulses.
  • Firmware eg the thermal capacity of the components or a characteristic of the current-dependent losses.
  • the current limiting values for example the discrete setpoints I Li , I L2 , I L 3 and I MAX, the associated time periods, which together define the current limiting characteristic, continuously during the operation of the
  • a critical operating state is recognized, for example, when the currently measured
  • Component temperature exceed a critical value, which is for example from the microcontroller
  • Circuit device 600 or a separate control and / or evaluation device can be determined.
  • the critical values are, for example, maximum values for ambient temperatures, component temperatures, the
  • Average current load can be stored in a memory of the power supply device 100, which can be accessed, for example, by the microcontroller of the circuit device 600 or a separate control and / or evaluation device.
  • the characteristic of the current-dependent losses is linear to the current load in a first approximation with a constant voltage drop.
  • the resistances rise Losses squared with the current.
  • inductors such as transformers or coils, the losses increase at a relatively high level with third power.
  • Heat capacity usually increases with the size of the component, but here the speed of heat dissipation is e.g. to be taken into account within semiconductor packages.
  • microcontroller can execute the
  • Firmware during operation measures the respective temperatures, for example the temperatures of the components Tri and D10 and the environment and save them.
  • the data obtained in this way can then be firmware or
  • Microcontroller independently when calculating the
  • Circuit device 500 or 600 which is designed to provide a first current limiting value 111, and
  • control device 202 which is designed to limit the output current that can be supplied by the power supply device to the first current limit value IL1 for a period of time tL1 as a function of the first current limit value provided by the circuit device 500 or 600,
  • the power supply device 100 is configured to detect the ambient temperature and / or the input voltage Vin and / or the temperature of at least one component TRI, D10 of the power supply device and / or the average current load of the
  • circuit device 500 or 600 is further configured to change the first current limiting value IL1 continuously and value-continuously or time-continuously and
  • Control device 202 is further configured, in response to the current limiting values provided by the circuit device 500 or 600, the output current provided by the power supply device continuously or value continuously or time continuously and value-discretely depending on the ambient temperature and / or the input voltage (Vin) and / or Temperature of at least one component Tri, D10
  • circuit device 500 or 600 can be part of the control device 202.
  • the ambient temperature can be continuously or too discrete by a temperature sensor 152, for example
  • Points of time are measured while, for example, the temperature of the transformer Tri by a
  • Temperature sensor 150 and / or the temperature of diode D10 by a temperature sensor 151 for example
  • the temperature of the other electrical and / or electronic components or components of the power supply device can also be determined accordingly and taken into account. Furthermore, in the
  • Power supply device for measuring the input voltage and a device for determining the average
  • a voltage proportional to the output current can be measured, for example by means of a shunt resistor R13
  • microcontroller for example the
  • the output current IOUT can also be detected using a current measuring device 142 shown in FIG. 3 and for example the
  • Microcontroller of the circuit device 600 are transferred, which, among other things, from the current measured values.
  • Output voltage can be from one shown in FIG.
  • Microcontrollers of the circuit device 600 are transferred for further use.
  • the Input voltage VIN is measured by a voltage measuring device 140 and transferred to the microcontroller of the circuit device 600. All these measured values can also be a separate control and / or evaluation device
  • Power supply device 100 are supplied, for example, the operating state of the
  • the first current limiting value IL1 is advantageously between 5 times and 10 times the value of the
  • Power supply device 100 available nominal current, wherein the second current limit value IMAX is greater than the nominal current and less than twice the nominal current.
  • the circuit device 500, 600 is preferably designed to provide the first current limiting value for 5 to 15 ms. Thanks to these dimensions, for example, a circuit breaker can be safely triggered magnetically.
  • the power supply device 100 can expediently be designed as a switched-mode power supply and in particular as a primary-clocked switched-mode power supply.
  • Circuit device 500, 600 is designed to continuously and value-continuously or value-continuously and discreetly up to the second current limit value during an adjustable the first current limit value
  • the total duration can be specified, for example, via the interface 160.
  • Circuit device 500, 600 to be designed, depending on an application and / or depending on the ambient temperature and / or the input voltage Vin and / or the temperature of at least one component Tri, D10 of the power supply device and / or
  • An application is, for example, by several parameters that can be stored in the power supply device
  • Power supply device the circuit device 500, 600 can be configured to the first
  • circuit device 500, 600 also being able to be designed as a function of the
  • Power supply device the first current limit value and determine the length of time during which the first current limiting value is to be provided and the amount of each step-by-step reduced current limiting value and the respective time duration during which the step-by-step reduced current limiting value is to be provided.
  • Power supply device have a device RI12, 160, via which the first and second
  • the circuit device 500, 600 can be designed to continuously and discretely value the first current limit value in several steps up to the second current limit value as a function of the set current limit values and the set time periods or pulse durations that correspond to the respective
  • the device can be a potentiometer for setting the current limit values, while the time periods can be set using appropriate time elements.
  • a corresponding potentiometer RI12 is shown in Fig.
  • an interface 160 can also be provided, via which defined values for the
  • Circuit device 500, 600 generates in dependence on the entered current limiting values and the time periods or pulse durations which are assigned to the respective current limiting values. Is from the
  • control device 202 Detected operating state, the control device 202 is provided with the current limiting characteristic curve
  • Circuit device 500, 600 depending on the
  • a method for the regulated energy supply of at least one electrical consumer is made available, in particular with the aid of the power supply device 100, the method comprising the following steps: providing an output current;
  • the first current limiting value is preferably between 5 times and 10 times the value of the
  • the output current is the
  • Power supply device 100 limited to the first current limit value for a period of 5 to 15 ms.
  • the output current of the power supply device 100 is preferably made responsive to a staircase
  • adjustable total time (tLl to tL3) is reduced. This means that the current limiting characteristic has a section with a negative slope, which can therefore be used to represent a staircase function.
  • Power supply device connectable computer

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Abstract

L'invention concerne un système d'alimentation électrique (10) destiné à l'alimentation en énergie régulée d'au moins un consommateur électrique R1-RN qui est configuré pour déterminer la température ambiante et/ou la tension d'entrée (Vin) et/ou la température d'au moins un composant (TR1, D10) du système d'alimentation électrique et/ou la charge moyenne en courant du système d'alimentation électrique. Il possède un dispositif de circuiterie (500, 600) qui est configuré pour réduire jusqu'à une deuxième valeur de limitation de courant une première valeur de limitation de courant de manière continue dans le temps et en valeur ou de manière continue dans le temps et par valeur discrète en fonction de la température ambiante et/ou de la tension d'entrée (Vin) et/ou de la température d'au moins un composant (Tr1, D10) du système d'alimentation électrique et/ou de la charge moyenne en courant du système d'alimentation électrique. Un dispositif de régulation (201, 202) est configuré pour, en réaction aux valeurs de limitation du courant fournies par le dispositif de circuiterie (500, 600), réduire le courant de sortie fourni par le système d'alimentation électrique de la première valeur de limitation du courant (IL1) jusqu'à la deuxième valeur de limitation du courant (IMAX) d'une manière continue dans le temps et en valeur ou de manière continue dans le temps et par valeur discrète.
PCT/EP2020/051782 2019-01-25 2020-01-24 Système d'alimentation électrique et procédé d'alimentation en énergie régulée d'au moins un consommateur électrique WO2020152340A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEDE102019101939.7 2019-01-25
DE102019101939.7A DE102019101939A1 (de) 2019-01-25 2019-01-25 Stromversorgungsvorrichtung und Verfahren zur geregelten Energieversorgung wenigstens eines elektrischen Verbrauchers
BE20195049A BE1026994B1 (de) 2019-01-29 2019-01-29 Stromversorgungsvorrichtung und Verfahren zur geregelten Energieversorgung wenigstens eines elektrischen Verbrauchers
BEBE2019/5049 2019-01-29

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US12040718B2 (en) 2022-06-01 2024-07-16 Lite-On Singapore Pte Ltd Power supply apparatus and operation method thereof

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EP1971021A2 (fr) 2007-02-14 2008-09-17 BLOCK Transformatoren-Elektronik GmbH & Co. KG Circuit de commutation destiné à la commande d'une partie de réseau de distribution
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DE102005031833A1 (de) 2005-07-06 2007-01-18 Phoenix Contact Gmbh & Co. Kg Verfahren und elektronische Stromversorgungsvorrichtung zur Energieversorgung einer durch eine Schutzeinrichtung gesicherten Niederspannungslast
EP1971021A2 (fr) 2007-02-14 2008-09-17 BLOCK Transformatoren-Elektronik GmbH & Co. KG Circuit de commutation destiné à la commande d'une partie de réseau de distribution
WO2015082207A1 (fr) 2013-12-06 2015-06-11 Weidmüller Interface GmbH & Co. KG Système d'alimentation électrique et procédé de limitation du courant de sortie d'un système d'alimentation électrique
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