EP4140027A1 - Appareil d'alimentation en énergie ayant un arrêt de sécurité, et procédé destiné à arrêter un appareil d'alimentation en énergie - Google Patents

Appareil d'alimentation en énergie ayant un arrêt de sécurité, et procédé destiné à arrêter un appareil d'alimentation en énergie

Info

Publication number
EP4140027A1
EP4140027A1 EP21719177.4A EP21719177A EP4140027A1 EP 4140027 A1 EP4140027 A1 EP 4140027A1 EP 21719177 A EP21719177 A EP 21719177A EP 4140027 A1 EP4140027 A1 EP 4140027A1
Authority
EP
European Patent Office
Prior art keywords
energy supply
supply device
switch
signal
switching
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP21719177.4A
Other languages
German (de)
English (en)
Inventor
Jochen Zeuch
Hartmut Henkel
Patrick Schweer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and 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
Application filed by Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP4140027A1 publication Critical patent/EP4140027A1/fr
Pending legal-status Critical Current

Links

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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • 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
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • 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
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters

Definitions

  • the present invention relates to an energy supply device for supplying an electrical consumer with energy, the energy supply device having a safety-related disconnection.
  • Energy supply devices of this type are, for example, switched-mode power supplies and uninterruptible power supplies (UPS).
  • UPS uninterruptible power supplies
  • the invention also relates to a method for switching off an energy supply device.
  • a safety-related shutdown is necessary for the operation of a machine. In the simplest case, this then interrupts the energy supply, e.g. from motors, or brakes them.
  • the EN 13849 series of standards defines appropriate safety requirements for the design of machines. These requirements are then broken down into individual components that are based on functional safety
  • IEC 61508 / IEC61511 are rated with a safety integrity level SIL, implemented.
  • a power supply which usually provides a lower, regulated output voltage.
  • circuit breakers in particular contactors or safety relays, are usually connected in series at the input and / or output of the power supply, which interrupt the energy supply.
  • a safety-related shutdown such as an emergency stop function consists of two independent contactors or relays connected in series, the contacts of which are open without control energy.
  • Circuit breakers are also used in parallel to the inputs or outputs.
  • the power supply is short-circuited and Overvoltages are reduced.
  • a downstream motor is also braked by a short circuit in the power supply generated on the output side. This triggers an upstream fuse, for example, and accordingly these are referred to as “crowbar” circuits.
  • a regulated power supply If a regulated power supply is short-circuited on the output side, it usually limits the output current. Depending on the characteristics of the power supply, it then supplies the current permanently or switches off the output after a certain time. With very simple power supplies, the current is limited by triggering a fuse.
  • a power supply device has a symbolically represented single-phase switched-mode power supply 51 and input terminals 1, 2, which are coupled to the inputs of the switched-mode power supply, and has output terminals 10, 11 on the output side, which are coupled to the outputs of the switched-mode power supply 51.
  • a back-up fuse F1 is arranged on the input side as a short-circuit fuse in front of the two circuit breakers S1, S1n.
  • FIG. 2 shows a power supply device with a three-phase switched-mode power supply 52, which has input terminals 1-3 on the input side, which are each coupled to an input of the switched-mode power supply, and which has output terminals 10, 11 on the output side, which are each coupled to an output of the switched-mode power supply are.
  • each of the input terminals 1-3 is via two circuit breakers connected in series S1, S1n are connected to a corresponding input of the switched-mode power supply 52.
  • a backup fuse F1, F2 or F3 is connected upstream of each of the three circuit breakers S1.
  • three circuit breakers S2 are connected in parallel upstream of the inputs of the switched-mode power supply 52.
  • the circuitry of the power supply device on the output side corresponds to that of the circuit in FIG. 1.
  • the series-connected circuit breakers S1, S1n interrupt the input supply for the energy supply device when an emergency stop signal is applied, and the circuit breakers S10, S10n disconnect the output voltage of the energy supply device from the load.
  • circuit breakers S2, S2n In order to prevent the failure safety of the interruption, e.g. against welding of the contacts, several independent circuit breakers are also connected in series, for a classic emergency cut-out at least two circuit breakers.
  • the input supply is short-circuited by the circuit breakers S2, S2n and the upstream fuse F1 is triggered.
  • the secondary side of the switched-mode power supply 51 or 52 can be short-circuited with the circuit breakers S11, S11n.
  • the circuit breakers S11, S11n In the case of power supplies with a DC voltage output, it should be noted that in the event of a short circuit on the output side, extremely high currents can flow through output capacitors arranged in the switched-mode power supply 51 or 52.
  • DE 31 12377 C2 discloses a flyback converter switching power supply with an extended control range, which has a transformer and a power switching transistor, a constant current source being switched into the base circuit of the power switching transistor instead of a fixed current limiting resistor.
  • the switched-mode power supply is equipped with a switch-off thyristor for load-dependent regulation of the duty cycle.
  • DE 41 15 295 A1 specifies a circuit arrangement for controlling and monitoring a load current flowing in a load circuit, which has an overload protection device that not only influences the load current in the event of an overload, but also causes it to be switched off in the event of a short circuit. Furthermore, a short-circuit detector can also be used, which in the event of a short-circuit causes the load current to be switched off quickly.
  • KR 100653858 B1 relates to a protective circuit for a switched-mode power supply, the protective circuit triggering an emergency shutdown.
  • the emergency shutdown monitors supply voltages and switches off the integrated control circuit of the switched-mode power supply if an error is detected.
  • the energy supply device has a transformer with a first winding, a power switching device, a feedback device and a voltage supply device for providing a supply voltage for the feedback device.
  • the power switching device is coupled to the winding and can be switched through periodically by means of a control signal that is generated by the feedback device for supplying energy to a consumer.
  • the feedback device here has a first switching element which interrupts the control signal when a switch-off signal occurs.
  • the switch-off signal can correspond to the emergency stop signal. This is generated, for example, by a person by pressing an emergency stop switch.
  • the energy supply device has a transformer with a primary winding, a secondary winding and galvanic isolation, and the feedback device has a primary-side control circuit in which the switching element is arranged.
  • the energy supply device is preferably implemented as a switched-mode power supply.
  • the switched-mode power supply can be configured both as a flyback converter and as a forward converter.
  • the feedback device contains a second switching element which interrupts the supply voltage for the feedback device when the switch-off signal is applied.
  • the voltage supply device is preferably coupled on the input side to a first connection with an input voltage of the energy supply device and on the output side with a second connection to a current input of the second switching element.
  • the feedback device has an integrated circuit with a release input and a third switching element, the third switching element interrupting a release signal applied to the release input when the switch-off signal occurs.
  • the switching element or elements are implemented as bipolar transistors, the control inputs of which are coupled to a reference potential during operation of the energy supply device and wherein the bipolar transistors switch through when the reference potential is applied and thus conduct a current. When the emergency stop switch is actuated, the reference potential is switched off and the switch-off signal is thus applied to the control inputs of the bipolar transistors, so that the current through the bipolar transistors is interrupted.
  • the switching element or elements are implemented as normally-off field effect transistors, the control inputs of which are supplied with an auxiliary voltage during operation of the energy supply device and thus conduct a current.
  • the auxiliary voltage is switched off so that the field effect transistors lock independently and thereby interrupt the current.
  • the energy supply device has an emergency switch-off with a coupling element, preferably an optocoupler, and with a switch for switching off, or the emergency switch-off switch, which has one or more contacts connected in series that open when actuated.
  • the switching contacts are connected in series with the input side of the coupling element.
  • the power switching device has a control input
  • the first Switching element is arranged spatially directly in front of the control input of the power switching device.
  • the energy supply device has a temperature monitoring circuit for the energy supply device which, when an excess temperature is detected, generates an error signal which is applied as a switch-off signal to the control input (s) of the switching element or elements to block the switching element.
  • the energy supply device has a second output voltage monitoring circuit for the
  • Energy supply device which generates an error signal when an output-side overvoltage is detected, which is applied via feedback to the primary side as a switch-off signal to the control input (s) of the switching element or elements in order to block the switching elements.
  • a method for switching off the energy supply device wherein the energy supply device contains a power switching device, an emergency stop switch, a feedback device and a voltage supply device for providing a supply voltage for the feedback device, and wherein the power switching device is periodically switched through by means of a control signal generated by the feedback device, is characterized characterized in that when the emergency stop switch is actuated, one or more switching elements arranged in the feedback device are opened, thereby preventing the generation of the control signal or blocking the control signal.
  • FIG. 3 shows an energy supply device with a control circuit which has a primary-side control of a circuit breaker
  • FIG. 4 shows a first preferred embodiment of the control circuit of FIG. 3
  • FIG. 5 shows a second preferred embodiment of the control circuit of FIG. 3.
  • FIG. 6 shows a third preferred embodiment of the control circuit of FIG. 3.
  • the present description illustrates the principles of the disclosure according to the invention. It is therefore understood that those skilled in the art will be able to conceive various designs which, although not explicitly described here, embody the principles of the disclosure according to the invention and are also intended to be protected in their scope.
  • the switched-mode power supply has a transformer 150 with a primary winding 160, a secondary winding 170 and galvanic isolation 180.
  • the electrical isolation 180 defines a primary-side power path 100 connected to the network and a galvanically isolated secondary-side power path 200.
  • the switched-mode power supply also has an input and an output, each of which has two input terminals 1, 2 or two output terminals 10, 11 included.
  • a DC voltage is applied to the input terminals 1, 2.
  • a consumer, in particular a load, for example a motor (not shown) can be connected to the output terminals 10, 11.
  • a power switching device 110 with its current-carrying connections is connected in series between the primary winding 160 and one of the input terminals, in this exemplary embodiment input terminal 2.
  • the power switching device 110 has a control input to which a control signal 311 is applied during the operation of the switched-mode power supply.
  • the power switching device 110 is continuously opened and closed during the operation of the switched-mode power supply.
  • an alternating current flows through the primary winding 160, as a result of which the transformer 150 is magnetized and an alternating voltage is induced in the secondary winding 170, which is rectified by a rectifier element 210 and charges a smoothing capacitor 211, so that a smoothed direct voltage, Output voltage 312 is present.
  • the power switching device 110 has, for example, one or more switching transistors.
  • switching transistors low-resistance field effect transistors (MOS-FET, SiC-JFET, GaN-FET) or bipolar transistors such as bipolar transistors with an insulated gate electrode (IGBT) are used as switching transistors.
  • MOS-FET low-resistance field effect transistors
  • SiC-JFET SiC-JFET
  • GaN-FET GaN-FET
  • bipolar transistors such as bipolar transistors with an insulated gate electrode (IGBT) are used as switching transistors.
  • IGBT insulated gate electrode
  • the switched-mode power supply has a feedback device 300 with a primary-side control circuit 301, a secondary-side control circuit 302 and a coupling element 303, for example an optocoupler.
  • the primary-side regulating circuit 301 generates the control signal 311 for the power switching device 110.
  • the coupling element 303 connects the secondary-side control circuit 302 to the primary-side control circuit 301, so that the output voltage 312 of the switched-mode power supply is usually fed back through the feedback device 300 during operation of the switched-mode power supply is regulated.
  • the secondary-side regulating circuit 302 measures the output voltage 312 and, by means of a current measuring device 212, for example using a resistor, an output current 313 of the switched-mode power supply, and compares this with maximum values. If one of the maximum values is exceeded, the feedback device 300 signals this as an error and transmits an error signal via the coupling element 30 to the primary-side control 301.
  • the primary-side control 301 subsequently reduces the energy transmitted via the transformer 150, e.g.
  • PWM pulse width modulation
  • a rectified supply voltage 310 required for supplying energy to the primary-side regulating circuit 301 is generated by a voltage supply device 111, which is coupled on the input side to a first terminal with an input voltage of the energy supply device.
  • the voltage supply device 111 is implemented by a resistor which, in this exemplary embodiment, is connected to the input terminal 1 and generates a DC voltage 310 that is reduced in comparison to the input voltage.
  • the switched-mode power supply can have different topologies and, for example, be wired as a flyback converter or forward converter with a one- or two-transistor circuit or as a half-bridge or full-bridge. These can be hard switching z. B. can be controlled or controlled with pulse width modulation (PWM) or resonant switching with frequency modulation (PFM).
  • PWM pulse width modulation
  • PFM resonant switching with frequency modulation
  • the polarity of the secondary winding 170 and the rectifier element 210 is such that the transformer 150 is magnetized when the power switching device 110 is switched through and acts as an energy store, and its energy is released via the secondary winding 170 to the secondary side when the power switching device 110 is blocked is.
  • the polarity of the secondary winding 170 and of the rectifier element 210 is such that the energy is transferred to the secondary side when the power switching device 110 is switched through.
  • the primary-side regulating circuit 301 contains an integrated circuit 400 which has an input Vcc for the primary-side supply voltage 310, an input IN for the feedback signal transmitted by the first coupling element 303 and an output OUT for the control signal 311.
  • the primary-side regulating circuit 301 also contains a first switching element 321, with which the control signal 311 can be interrupted, and a second switching element 322, with which the primary-side supply voltage 310 can be interrupted.
  • the enabling of the integrated circuit 400 can be switched off with a third switching element 323.
  • the switching elements are advantageously implemented with transistors.
  • the switching elements 321, 322 and 323 are open when no voltage is applied to their control input. If the control inputs are connected to a reference potential, for example to ground, then the switching elements 321, 322, 323 close.
  • the primary-side control circuit 301 also has connection terminals 5, 6 for a switch-off signal, in particular an emergency-off signal, to which an emergency-off switch 20 is connected. If the emergency stop switch 20 is actuated and opened by a person, the switch-off signal is applied to the control inputs of the switching elements 321, 322 and 323. This will make the Connecting lines to the connection terminals 5, 6 are interrupted and the switching elements 321, 322, 323 open, so that the switched-mode power supply immediately stops its operation without allowing a further switching cycle. If the emergency stop signal is switched off at a later point in time by manually resetting the emergency stop switch 20, the switching elements 321, 322, 323 subsequently close and the switched-mode power supply goes back into operation.
  • a switch-off signal in particular an emergency-off signal
  • the switching elements 321, 322 and 323 are closed and the integrated circuit 400 is supplied with the primary-side supply voltage 310 via the switching element 322 and generates the control signal 311 for operating the power switching device 110.
  • Switch 20 the emergency stop signal is applied to the connection terminals 5, 6, for example by opening the emergency stop switch 20, the switching element 322 interrupts the primary-side supply voltage 310, the switching element 321 the control signal 311 and the switching element 323 on at an enable input EN of the Integrated circuit 400 applied enable signal, so that no more energy is transmitted to the secondary side by the switched-mode power supply.
  • the switched-mode power supply is safely switched off as a result, since the voltages 310, 311 necessary for operating the switched-mode power supply and the enable input EN are blocked at the same time.
  • the switching elements 321-323 are implemented here by bipolar transistors 321-323, in particular PNP bipolar transistors, whose control inputs are wired via one or more resistors in such a way that the bipolar transistors 321-323 conduct during operation of the switched-mode power supply.
  • the emergency stop signal is applied to the primary-side control circuit 301 via a second coupling element 403, in particular an optocoupler, since the primary-side control circuit 301 is on the primary side and thus on the hot side of the switched-mode power supply.
  • a DC voltage Vaux is present while the switched-mode power supply is in operation
  • Connection terminals 401, 402 which are applied to the emergency stop switch 20 via an input diode of the second coupling element 403, so that when the emergency stop switch 20 is closed, a current flows through this diode and the output transistor of the second coupling element 403 is switched through.
  • the input diode is on a cold side of the coupling element 403 and the output transistor is on the hot side of the coupling element 403.
  • the output transistor of the second coupling element 403 is coupled to the control circuit 301, in particular the control inputs of the bipolar transistors 321-323, in such a way that the control inputs of the bipolar transistors 321-323 are at a reference potential, in this exemplary embodiment ground, while the switched-mode power supply is in operation, since the output transistor of the second coupling element 403 conducts in this case and thereby couples the control inputs of the bipolar transistors 321-323 to ground.
  • the control inputs of the bipolar transistors 321-323 are also coupled via a resistor 324 to the supply voltage 310, which, however, has no influence on the function of the bipolar transistors 321-323 during operation of the switched-mode power supply.
  • the DC voltage Vaux which is applied to the input diode of the second coupling element 403, is interrupted, so that the output transistor of the coupling element 403 blocks.
  • the supply voltage 310 is now applied to the control inputs of the bipolar transistors 321-323 via the resistor 324, so that each of the bipolar transistors 321-323 blocks and the current flow through the bipolar transistors 321-323 is immediately blocked, which means that the switched-mode power supply subsequently stops operating for a reliable emergency shutdown.
  • the switching elements 321-323 are implemented by field effect transistors 321-323.
  • the emergency stop signal is applied to the primary-side control circuit 301 via the second coupling element 403.
  • the connection terminals 401, 402 are connected to the DC voltage Vaux.
  • the emergency stop switch 20 is closed during operation of the switched-mode power supply so that the output transistor of the second coupling element 403 conducts.
  • a Zener diode 327 generates a positive auxiliary voltage from the supply voltage 310, which is switched through during operation of the switched-mode power supply through the output transistor of the second coupling element 403 to the control inputs of the field-effect transistors 321-323, so that the field-effect transistors 321-323 during operation of the switched-mode power supply conduct a current flow.
  • the control inputs of the field effect transistors 321-323 in this embodiment are also connected via a resistor 325 to a reference potential, in this embodiment to ground, although the resistor 325 has no influence on the function of the field effect transistors 321-323 during operation of the switched-mode power supply.
  • control inputs of the field effect transistors 321-323 are now at the reference potential via the resistor 325, so that the field effect transistors 321-323 block the flow of current and the switched-mode power supply then stops operating for a reliable emergency shutdown.
  • NPN bipolar transistors or N-channel field effect transistors can also be used for the switching elements 321-323 if the connections of the output transistor of the second coupling element 403 are interchanged and supplied with a positive reference potential. Resistor 324 is then to be connected to ground.
  • a diode 326 can be connected in parallel to the current connections of the switching element 321 and is polarized in such a way that it blocks the control signal 311.
  • This diode supports faster switching off of the power switching device 110 and prevents accidental switching on in the event of voltage jumps in the power switching device 110.
  • the energy supply device according to the invention therefore discloses an inexpensive implementation for a safety-related shutdown. It is particularly applicable to switching power supplies or uninterruptible power supplies (UPS).
  • a switched-mode power supply for example, is only expanded to include a few inexpensive components in order to safely switch off a consumer, for example a motor, when an emergency stop switch is actuated.
  • a safety-related disconnection in the simplest case only the activation of the power switching device or devices is interrupted. In order to achieve a preferred, safety-related disconnection of the energy supply device, this is carried out in such a way that the clocking of the power switching device within the feedback device is interrupted independently of one another at several points. When the energy supply device is activated, energy is only transferred again when all these interruptions have been canceled or bridged.
  • the energy supply device is implemented as a switched-mode power supply
  • the implementation of an emergency shutdown according to the invention is independent of the switched-mode power supply design.
  • the switched-mode power supply is supplied with an alternating voltage, a rectifier and a smoothing device are connected upstream of the converter that actually converts in order to supply the switched-mode power supply with a direct voltage.
  • a switched-mode power supply has the advantage that it works with a frequency that is clocked well above the mains frequency and, in particular, the transformer is much smaller in size and significantly lighter than a 50 Hz transformer.
  • the first switching element is advantageously arranged spatially directly in front of the control input of the power switching device, so that the clocking of the switched-mode power supply is interrupted as efficiently as possible.
  • the energy supply of the integrated circuit 400 in particular is therefore switched off.
  • the shutdown can also be linked to other error signals.
  • the energy transmission can be interrupted by a second output voltage monitoring circuit and feedback to the primary side in the event of an overvoltage on the output side, or the switched-mode power supply can be protected from overheating and failure by a temperature monitoring circuit.
  • the energy supply device is designed in such a way that it is only possible to supply energy to the consumer when all components are functioning correctly.
  • Input-side circuit breakers S1, S1n, S2, S2n Output-side circuit breakers S10, S10n, S11, S11n Single-phase switched-mode power supply 51 Three-phase switched-mode power supply 52

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

L'invention porte sur un appareil d'alimentation en énergie, lequel a un transformateur pourvu d'un premier enroulement, un dispositif commutateur de puissance (110), un dispositif rétroactif (300) et un dispositif d'alimentation en tension (111) destiné à appliquer une tension d'alimentation (310) au dispositif rétroactif. Le dispositif commutateur de puissance (110) est couplé au premier enroulement et peut être commuté périodiquement au moyen d'un signal de commande (311) émis par le dispositif rétroactif (300). Le dispositif rétroactif a un premier élément commutateur (321), lequel interrompt le signal de commande (311) lorsqu'un signal d'arrêt, en particulier un signal d'arrêt d'urgence, se produit. L'invention porte également sur un procédé destiné à arrêter un appareil d'alimentation en énergie.
EP21719177.4A 2020-04-22 2021-04-21 Appareil d'alimentation en énergie ayant un arrêt de sécurité, et procédé destiné à arrêter un appareil d'alimentation en énergie Pending EP4140027A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE20205269A BE1028230B1 (de) 2020-04-22 2020-04-22 Energieversorgungsvorrichtung mit sicherheitsgerichteter Abschaltung sowie Verfahren zum Abschalten einer Energieversorgungsvorrichtung
PCT/EP2021/060423 WO2021214160A1 (fr) 2020-04-22 2021-04-21 Appareil d'alimentation en énergie ayant un arrêt de sécurité, et procédé destiné à arrêter un appareil d'alimentation en énergie

Publications (1)

Publication Number Publication Date
EP4140027A1 true EP4140027A1 (fr) 2023-03-01

Family

ID=70680141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21719177.4A Pending EP4140027A1 (fr) 2020-04-22 2021-04-21 Appareil d'alimentation en énergie ayant un arrêt de sécurité, et procédé destiné à arrêter un appareil d'alimentation en énergie

Country Status (5)

Country Link
US (1) US20230275514A1 (fr)
EP (1) EP4140027A1 (fr)
CN (1) CN115443602A (fr)
BE (1) BE1028230B1 (fr)
WO (1) WO2021214160A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112377A1 (de) 1981-03-28 1983-01-13 Gorenje Körting Electronic GmbH & Co, 8217 Grassau Sperrwandler-netzteil mit erweitertem regelbereich
DE4115295A1 (de) 1991-05-10 1992-11-12 Telefunken Electronic Gmbh Schaltungsanordnung zur steuerung und ueberwachung eines laststromes
KR100653858B1 (ko) 2005-12-16 2006-12-05 엘지이노텍 주식회사 전원장치의 보호회로
DK3457555T3 (en) * 2017-09-19 2022-09-26 Kone Corp Drev til et transportsystem

Also Published As

Publication number Publication date
BE1028230A1 (de) 2021-11-22
BE1028230B1 (de) 2021-12-03
WO2021214160A1 (fr) 2021-10-28
CN115443602A (zh) 2022-12-06
US20230275514A1 (en) 2023-08-31

Similar Documents

Publication Publication Date Title
EP3406029B1 (fr) Dispositif de séparation pour une chaîne photovoltaïque, installation solaire et procédé de fonctionnement pour installation solaire à chaîne photovoltaïque
EP2817860B1 (fr) Dispositif de commutation de sécurité avec bloc d'alimentation
DE60021795T2 (de) Unterbrechungsfreies doppeltes Stromversorgungssystem
EP1735892A1 (fr) Dispositif d'alimentation electrique sans interruption
DE112015000604B4 (de) System von Stromrichtereinheiten und Stromrichtereinheit
DE19600547A1 (de) Umrichterschutzgerät für elektrisches Netz
BE1028230B1 (de) Energieversorgungsvorrichtung mit sicherheitsgerichteter Abschaltung sowie Verfahren zum Abschalten einer Energieversorgungsvorrichtung
DE2223828C3 (de) Überstromschutzanordnung
EP2684273B1 (fr) Commande d'une tension d'alimentation
DE102021109645A1 (de) Energieversorgungsvorrichtung mit sicherheitsgerichteter Abschaltung sowie Verfahren zum Abschalten einer Energieversorgungsvorrichtung
DE19920625A1 (de) Schutzschaltung für einen Schalter sowie Schaltnetzteil
WO2022101475A1 (fr) Procédé et dispositif de montage en court-circuit d'une unité générateur
EP1399998B1 (fr) Agencement de circuit pour disjoncteur de courant de fuite
EP2500208A2 (fr) Agencement de circuit de protection
BE1030672B1 (de) Vorrichtung zur Überwachung einer Stromversorgung
EP1110797B1 (fr) Installation et procédé pour protéger des convertisseurs de puissance contre une surcharge
DE102008063816A1 (de) Schutzeinrichtung
EP2608343B1 (fr) Alimentation électrique
DE102022116489A1 (de) Vorrichtung zur Überwachung einer Stromversorgung
DE102009033604A1 (de) Elektrische Netzanordnung zur Stromversorgung
DE102021114189A1 (de) Verfahren und Sicherheitsabschaltanordnung zum Betreiben einer Generatoreinheit
DE19825972A1 (de) Sicherheitsvorrichtung für Umrichter-gespeiste Elektromotoren
EP0509348B1 (fr) Procédé pour la protection d'un dissipateur régulé à principe de réglage de phase et dispositif pour l'exécution de ce procédé
WO2002061933A1 (fr) Circuit electrique
WO2005027295A1 (fr) Procede et ensemble circuit pour surveiller des fusibles montes en amont de disjoncteurs de puissance basse tension

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221117

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230512

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240327