WO2019158400A1 - Überwachungssystem sowie netzüberwachungsschaltung - Google Patents
Überwachungssystem sowie netzüberwachungsschaltung Download PDFInfo
- Publication number
- WO2019158400A1 WO2019158400A1 PCT/EP2019/052780 EP2019052780W WO2019158400A1 WO 2019158400 A1 WO2019158400 A1 WO 2019158400A1 EP 2019052780 W EP2019052780 W EP 2019052780W WO 2019158400 A1 WO2019158400 A1 WO 2019158400A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- voltage
- electronic component
- monitoring
- monitoring system
- switching unit
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
Definitions
- the invention relates to a monitoring system for monitoring a supply voltage for an electronic component and to a network monitoring circuit for a monitoring system.
- Monitoring systems comprising a network monitoring circuit are commonly used in electronic systems to monitor the supply voltage of at least one electronic component.
- such monitoring systems or network monitoring circuits are used in air conditioning systems to monitor the air conditioning compressor or the supply voltage provided to the air conditioning compressor.
- the network monitoring circuits and monitoring systems known from the prior art usually rely on a capacitor voltage in order to detect a power interruption or a voltage dip when the capacitor voltage drops in a certain way.
- the capacitor voltage is compared with external reference voltages in order to be able to conclude a failure criterion.
- Such a network monitoring circuit is known for example from DE 38 13 269 A1.
- the object of the invention is to provide a monitoring system and a network monitoring circuit with which voltage interruptions and / or voltage dips can be detected in a simple manner.
- a monitoring system for monitoring a supply voltage for an electronic component having a voltage monitoring unit that is set up to monitor one of the voltage levels applied to the electronic component and a switching unit that is set up to control the electronic component and / or or switch off, wherein the switching unit is coupled to the voltage monitoring unit, and wherein the switching unit is adapted to turn off the electronic component, when the voltage monitoring unit detects a drop below the voltage level below a predetermined threshold.
- the basic idea of the invention is that the corresponding electronic component is actively switched off when the voltage level falls below the predetermined threshold, so that a system comprising the electronic component is converted into its initial state. At the next start-up or start of the system then there is a usual initial state for which the electronic component or the entire system is designed, in particular a fuse present in the system.
- the electronic component is one of several electronic components of a composite (system), which is supplied with the electrical voltage.
- a network in an embodiment, after detecting the interruption of the power supply or the voltage dip, only individual electronic components are specifically switched off.
- Such a network is used for example in larger facilities such as hospitals or so-called server farms for cooling.
- the monitoring system is set up to detect the time span in which the voltage level is below the predetermined threshold value.
- the duration of the power interruption or of the voltage drop can be detected by the voltage monitoring unit. Short-term voltage dips can be bridged by the electronic component, so that it is not necessary to switch off the corresponding electronic component.
- the switching unit is configured to turn off the electronic component when the detected time period is longer than a predetermined period of time.
- the predetermined period of time represents a tolerable interruption of the voltage supply with respect to time.
- the tolerable interruption depends on the characteristics of the electronic component or, for example, the corresponding machine.
- the electronic component is only switched off when the voltage dip or the power interruption lasts longer than the predetermined period of time.
- an air conditioning compressor can withstand very short voltage dips so that it does not have to be switched off. In general, this increases the stability of the entire system, since it avoids unnecessarily switching off the system.
- the switching unit receives a corresponding control signal from the voltage monitoring unit if the detected voltage level falls below the predetermined threshold value.
- the switching unit can then determine the duration (time span) of the corresponding control signal. As soon as the time span is longer than a period stored in a memory, ie longer than that predetermined period of time, the switching unit switches off the electronic component.
- the switching unit is set up to switch off the electronic component for a predetermined period of time and / or to switch the electronic component back on.
- the predetermined period of time may in turn depend on the electronic component and / or the system comprising the electronic component.
- the predetermined period of time may be a value which ensures that the system comprising the electronic component is again in its initial state, so that when the electronic component is restarted substantially such conditions are present which correspond to normal operation.
- the predetermined period of time may be selected such that the pressure in the air conditioning system has sufficiently decreased, so that no increased current is needed to start the electronic component.
- the switching unit is set up to turn on the electronic component again.
- the switching unit receives a corresponding control signal from the voltage monitoring unit, provided that the detected voltage level is again above the predetermined threshold value.
- the switching unit can then determine the duration (time span) of the corresponding control signal. As soon as the time span is longer than a time period stored in a memory, ie longer than the predetermined time duration, the switching unit switches on the electronic component again.
- a further aspect provides that the voltage monitoring unit is set up to recheck the voltage level after the electronic component has been switched off.
- the voltage level can be checked at regular intervals. If the voltage monitoring unit determines that the voltage level is above the predetermined threshold value, the voltage monitoring unit can activate the switching unit with the aim of reactivating the electronic component.
- the voltage monitoring unit can be set up to permanently check the voltage level. As soon as the voltage level changes, this is determined accordingly via the voltage monitoring unit.
- the monitoring system includes a sensor that monitors a system parameter of a system including the electronic component.
- the sensor may be coupled to the voltage monitoring unit and / or the switching unit such that the signal output by the sensor is processed by the voltage monitoring unit or the switching unit.
- the sensor can generally detect a system parameter of the system comprising the electronics component, which can be used to draw conclusions about the state of the system. It is thus sensory determined whether the system comprising the electronic component is already back in the initial state, from which the electronic component can be started without a fuse triggers.
- the system parameter is a pressure, for example a pressure in the air conditioning system, against which the electronic component would have to work.
- a pressure measurement can be done indirectly via the measurement of the temperature in a heat exchanger of the air conditioning system.
- the temperature measurement is particularly cost-effective than an immediate pressure measurement.
- a disadvantage is the significantly longer inertia of the measuring principle.
- the monitoring system can be set up to determine the pressure indirectly via a temperature, in particular the pressure of a system comprising the electronic component.
- the switching unit is set up to turn on the electronic component again when the system parameter detected by the sensor falls below and / or reaches a predetermined parameter value.
- the sensor can therefore be provided for controlling the switching unit, which receives a corresponding signal of the voltage monitoring unit in addition to the signal from the sensor.
- the air conditioning system it is therefore determined whether the pressure in the air conditioning system is below a certain level. This can ensure that the electronic component, so the air conditioning compressor, can be started without increased power consumption, since the electronic component or the air conditioning compressor does not have to work against the existing pressure.
- the switching unit can be set up to switch on the electronic component again if the system parameter, for example the pressure, falls below and / or reaches a predetermined parameter value, ie a predetermined pressure value, and at the same time the voltage monitoring unit determines that the voltage level is above a predetermined threshold value, ie a sufficient voltage is available. It can therefore be determined via the sensor that the (air conditioning) system comprising the electronic component is again in the desired initial state, so that the electronic component can be safely started.
- the system parameter for example the pressure
- the output state is thus generally a state of the system that allows safe starting (for example, without triggering a fuse) of the electronic component.
- the initial state may be considered as the state in which the system was prior to the occurrence of the detected voltage interruption and / or the detected voltage dip.
- the output state can therefore correspond to the regular operation of the system, ie without triggering a fuse, without voltage interruption and / or without voltage dip.
- the electronic component is a compressor, in particular an air conditioning compressor.
- the electronic component is turned off on an air conditioner with a compressor as an electronic component whose voltage supply is monitored by the monitoring system.
- the electronic component may be a motor working against a load, in particular a mechanical one.
- a load in particular a mechanical one.
- Such an electronic motor for example, the aforementioned compressor, which works against a pressure existing in the system as (mechanical) load.
- the affected In this embodiment, load is therefore in particular no electronic load in the sense of an ohmic load resistance.
- the working against an - especially mechanical - load electronic motor can also be referred to as a loaded electronic motor.
- a network monitoring circuit for a monitoring system of the aforementioned type having two mains connections for a mains voltage and a comparator, wherein the network monitoring circuit comprises a reference voltage circuit section which generates from the mains voltage applied to the comparator reference voltage, in particular wherein the Reference voltage circuit section comprises a capacitor.
- the network monitoring circuit it is possible for the network monitoring circuit to be simple in design and accordingly inexpensive, since the reference voltage is generated internally via the network monitoring circuit. It is therefore not referred to an external reference voltage to check a drop in the voltage level. Accordingly, the reference voltage, which is generated from the mains or supply voltage of the electronic component itself, and an input voltage which is assigned to the mains or supply voltage are applied to the comparator. The input voltage is the voltage level. Accordingly, the voltage level can be monitored via the comparator.
- a rectifier bridge assigned to the two network connections is provided, the bridge outputs of which are respectively assigned to the reference voltage circuit section, in particular wherein a low-pass filter and / or a diode for stabilizing the rectified voltage is or are provided between a bridge output and the reference voltage circuit section.
- the rectifier bridge is provided to rectify the AC voltage applied to the two mains terminals so that only positive half-waves are transmitted through the rectifier bridge. In this respect, it is ensured that the capacitor of the reference voltage circuit section can be charged and is not discharged by negative half-waves.
- the low-pass filter and the corresponding diode associated with the reference voltage circuit section stabilize the voltage rectified by the rectifier bridge so that a stabilized rectified voltage is provided to the reference voltage circuit section to apply a correspondingly stabilized reference voltage to the comparator.
- the reference voltage circuit section is associated with the negative input of the comparator.
- the input voltage to be monitored or the voltage level can then be assigned to the positive input of the comparator. This results in a corresponding output signal of the comparator, if the input voltage to be monitored changes in comparison to the reference voltage generated by the reference voltage circuit section and in particular becomes smaller than the reference voltage.
- the network monitoring circuit has a supply voltage circuit section for the comparator, which generates an operating voltage for the comparator from the mains voltage.
- the comparator is also supplied from the mains voltage to be monitored, whereby an integrated operating voltage for the comparator can be provided.
- the output of the comparator is assigned to a microcontroller and / or an opto-coupler, in particular wherein the microcontroller is assigned to a switching element in terms of control technology.
- the microcontroller can correspondingly control the switching element in order to switch the electronic component on or off.
- the (optionally provided) opto-coupler produces a galvanic separation.
- the opto-coupler is arranged between the output of the comparator and the microcontroller, so that the microcontroller is galvanically isolated from the comparator.
- the optional opto-coupler allows the galvanic isolation of the network monitoring circuit and downstream components.
- the opto-coupler is also a circuit component that serves to generate an inverted output signal of the network monitoring circuit.
- the inversion relates in particular to the signal at the output of the comparator.
- the opto-coupler generates in the normal state, ie during operation without voltage dip and / or voltage interruption, an optical signal. In the case of a voltage dip and / or a power interruption then extinguishes this signal. The function of the opto-coupler is thus guaranteed. Moreover, in the event of a voltage dip and / or a power interruption, it is not necessary to use electrical power for the signal of the opto-coupler.
- the network monitoring circuit is designed accordingly efficient.
- the opto-coupler then generates a signal when a voltage dip has been detected
- the monitoring system described above for monitoring a supply voltage for an electronic component may comprise the network monitoring circuit of the aforementioned type.
- the voltage monitoring unit of the monitoring system is formed by the reference voltage circuit section and the comparator, in particular wherein optionally the supply voltage circuit section is also part of the voltage monitoring unit.
- the switching unit of the monitoring system may be formed, inter alia, by the microcontroller and the switching element.
- the microcontroller receives from the comparator as part of the voltage monitoring unit, a corresponding control signal when the voltage level falls below the predetermined threshold, which is determined by the reference voltage.
- the optionally provided opto-coupler can accordingly provide a galvanic isolation between the voltage monitoring unit and the switching unit, provided that the opto-coupler is arranged between the output of the comparator and the microcontroller.
- Figure 1 is a schematic representation of an inventive
- FIG. 2 shows a circuit diagram of a monitoring system according to the invention
- Figure 3 is a schematic representation of an inventive
- Figure 4 is a circuit diagram of a network monitoring circuit according to the invention according to an embodiment which is provided for a monitoring system according to the invention.
- Figure 5 is a diagram in which the voltages are shown.
- FIG. 1 schematically shows a monitoring system 10, which is provided for monitoring a supply voltage. About the supply voltage an existing in a system 12 electronic component 14 is operated.
- the monitoring system 10 is associated with a system 12 embodied as an air conditioning system, which is shown only schematically in its basic features.
- the monitoring system 10 monitored in the representation of the supply voltage of a compressor designed as an air conditioning electronic component 14th
- the monitoring system 10 comprises a voltage monitoring unit 16, which is set up to monitor a voltage level which is assigned to that supply voltage which is applied to the electronic component 14, that is to say to the air conditioning compressor.
- the monitoring system 10 includes a switching unit 18, which is set up, the electronic component 14, so the air conditioning compressor, on or off. The switching unit 18 switches off the electronic component 14 in particular when the voltage monitoring unit 16 detects that the voltage level falls below a predetermined threshold value.
- the switching unit 18 is coupled control technology with the voltage monitoring unit 16, so that the switching unit 18 can receive a control signal of the control monitoring unit 16.
- the monitoring system 10 in the embodiment shown comprises a sensor 20, which monitors a system parameter of the system 12, ie the air conditioning system.
- the system parameter may be a pressure in the embodiment shown.
- the system parameter detected by the sensor 20 is transmitted to the switching unit 18, which thus receives a signal from the voltage monitoring unit 16 as well as a signal from the pressure sensor 20.
- the pressure can also be determined indirectly by the monitoring system 10 via a temperature.
- the switching unit 18 is generally adapted to switch the electronic component 14 on or off, this being done in dependence on the signals obtained, as will be explained in more detail below.
- the electronic component 14 is switched off by the switching unit 18 if the voltage level has fallen below the predetermined threshold value.
- the electronic component 14 is turned on by the switching unit 18, provided that the voltage level has risen above the predetermined threshold and - depending on the configuration - for example, the system parameters reaches a suitable value and / or a sufficiently large time has elapsed after switching off.
- the monitoring system 10 comprises the sensor 20, which is a system parameter monitors
- the switching unit 18 also sets to the detected system parameters.
- the electronic component 14 turns on again. This is done to make sure that the electronic component 14, ie the air conditioning compressor, does not have to work against the remaining pressure in the air conditioning system 12, which would result in a high power consumption.
- the switching unit 18 is set up to switch off the electronic component 14 only when the voltage level falls below the predetermined threshold value for a specific time.
- the monitoring system 10 is set up to detect the time span in which the voltage level is below the predetermined threshold value. If the time span is longer than a predetermined period of time, the switching unit 18 switches off the electronic component 14. This ensures that short-term voltage dips, which the system 12, in particular the electronic component 14, can tolerate, do not lead to switching off the corresponding electronic component 14. The system stability is therefore increased. Furthermore, the switching unit 18 is set up to switch off the electronic component 14 for a predetermined period of time so that the electronic component 14 is switched on again (automatically) only after the predefined period of time has elapsed. This is to ensure that the system 12 can return to its original state, as is the case in normal operation. Specifically, the existing pressure in the system 12 should be reduced, so that the electronic component 14 does not have to be started against this.
- the switching unit 18 only switches on the electronic component 14 again when it receives a corresponding control signal, for example from the voltage monitoring unit 16 and / or the sensor 20. If the corresponding control signal from the voltage monitoring unit 16 is already output before the expiry of the predetermined period of time, it can be provided that the predetermined time period is initially waited for.
- the electronic component 14 can be restarted directly, since the desired initial state of the system 12 should have set again.
- the voltage monitoring unit 16 is configured to recheck the voltage level after the electronic component 14 has been turned off. For example, the voltage monitoring unit 16 continuously monitors the voltage level.
- the electronic component 14 is only switched on again when the voltage level is above the predetermined threshold value.
- FIG. 2 shows the monitoring system 10 on the basis of a circuit diagram from which the structure of a network monitoring circuit 22 of the monitoring system 10 emerges.
- the monitoring system 10 thus comprises the network monitoring circuit 22.
- the network monitoring circuit 22 has two network connections 24, 26, to which the mains voltage for the electronic component 14 is applied.
- the line voltage to be monitored is first converted via a voltage divider 28, which comprises two ohmic resistors, to a voltage level which ensures that the remaining components of the network monitoring circuit 22 remain undamaged.
- a voltage divider 28 which comprises two ohmic resistors
- the network voltage to be monitored and the voltage level are linked or assigned to one another.
- a rectifier bridge 30 Connected to the voltage divider 28 is a rectifier bridge 30, which is accordingly assigned to the two network connections 24, 26.
- the rectifier bridge 30 ensures that no negative voltages need to be processed by the network monitoring circuit 22, since only positive half-waves are passed.
- the rectifier bridge 30 has two bridge outputs 32, 34, so that a rectified voltage is output.
- the first bridge output 32 is associated with a first low-pass filter 36 and a first diode 38 for stabilizing the rectified voltage.
- the stabilized and rectified voltage is then provided to a reference voltage circuit section 40, which generates and provides a reference voltage, as will be explained below.
- the reference voltage circuit portion 40 includes a resistor 42, a capacitor 44, and a diode 46 connected in parallel with the capacitor 44.
- the diode 46 is particularly a Zener diode.
- the components of the reference voltage circuit section 40 are assigned to the outputs 32, 34 of the rectifier bridge 30.
- the rectifier bridge 30 is in turn coupled to the grid voltage to be monitored, so that the reference voltage is generated from the grid voltage to be monitored.
- the reference voltage circuit section 40 may also be referred to as an integrated reference voltage source.
- the reference voltage circuit section 40 is adjoined by a comparator 48 to which the reference voltage generated by the reference voltage circuit section 40 is applied, namely at the negative input 50 of the comparator 48.
- the positive input 52 of the comparator 48 is assigned the voltage level to be monitored.
- the positive half-waves generated by the rectifier bridge 30, which are supplied to the positive input 52 of the comparator 48 are also via a voltage divider 54, which includes two resistors, as well as a low-pass filter 56 and a diode 58 (this is in the illustrated embodiment around a zener diode) is processed accordingly, so that an overvoltage protection is ensured.
- the network monitoring circuit 22 additionally comprises a supply voltage circuit section 60, which generates, inter alia, an operating voltage for the comparator 48 from the system voltage to be monitored, so that the comparator 48 is operated via the system voltage to be monitored.
- the output 62 of the comparator 48 is assigned in the embodiment shown a microcontroller 64, via which a switching element 66 is driven, which is formed in the embodiment shown as a transistor.
- the switching element 66 ie the transistor, controls the electronic component 14 via a relay 68, so that the electronic component 14 is switched on or off.
- the microcontroller 64 is also coupled to the sensor 20 so that the system parameter detected by the sensor 20 is also transmitted to the microcontroller 64.
- the signal output by the sensor 20 is filtered by a low-pass filter 70 to the microcontroller 64 passed.
- a low-pass filter 72 may be provided between the comparator 48 and the microcontroller 64.
- the monitoring system 10 includes for monitoring a supply voltage for an electronic component 14, the network monitoring circuit 22nd
- the voltage monitoring unit 16 can be formed via the components of the network monitoring circuit 22 to the output 62 of the comparator 48, ie at least from the comparator 48 and the reference voltage circuit section 40.
- the switching unit 18 of the monitoring system 10 is controlled by the microcontroller 64 and the associated switching element 66 formed over which the power supply of the electronic component 14 can be switched on or off.
- FIG 3 is a schematic representation of a general use of the monitoring system 22 is shown, wherein the electronic component 14 is an arbitrary motor.
- the electronic component 14 is supplied by an electrical power supply 73 with an electrical voltage.
- a fuse F and a switch S are present, which is controlled here by the relay 68, as will be explained below.
- the network monitoring circuit 22 monitors the voltage provided via the electrical mains supply 73, as is schematically indicated in FIG. 3, and in the event of a voltage dip and / or a power interruption sends a signal to a control logic, which is configured here as an example as the microcontroller 64.
- the switch S is opened by the microcontroller 64 via the relay 68 and thus the voltage supply of the electronic component 14 is interrupted.
- the microcontroller 64 is here connected to the sensor 20, which provides information about the system parameters.
- the time is also waited for for which the electronic component 14 should be switched off, so that the initial state is restored.
- the duration of the off state it is assumed that the current level required by the electronic component 14 for restarting drops below the level in a tolerable time to trigger the Fuse F results, and / or that the required power requirement does not remain at such a high level so long that the fuse F would be triggered.
- FIG. 4 shows an alternative embodiment of the network monitoring circuit 22 , in which in addition to the embodiment shown in Figure 2, an opto-coupler 74 is provided, which is arranged between the output 62 of the comparator 48 and the microcontroller 64 to a galvanic isolation provide.
- the opto-coupler 74 provides a galvanic isolation of the voltage monitoring unit 16 and the switching unit 18 of the monitoring system 10.
- FIG. 5 shows an exemplary diagram from which the voltages which are processed with the monitoring system 10 or the network monitoring circuit 22 are shown. Let us consider the circuit of Figure 4, in which the inversion of the signal of the comparator 48 results from the used opto-coupler 74; in contrast to the circuit of Figure 2.
- a supply voltage 76 provided as an AC voltage is shown, resulting in a voltage level 78 which is applied to the positive input 52 of the comparator 48 and compared with the reference voltage 80 generated from the supply voltage 76, which represents the predetermined threshold and the negative input 50 of Comparator 48 is present.
- the supply voltage 76 decreases over time, with the result that the voltage level 78 also decreases.
- the output voltage 82 changes at the output 62 of the comparator 48, ie its output signal, so that the signal 82 results behind the opto-coupler 74 and thus for the microcontroller 64. Thereby, and by the inversion due to the opto-coupler 74, a control signal is output, which is supplied to the microcontroller 64.
- the microcontroller 64 may then be configured to detect the amount of time that the voltage level 78 is below the predetermined threshold value 80 by the microcontroller 64 measuring the time it takes the "high signal" of the network monitoring circuit 22 - thus the inverted signal of the comparator 48 - receives.
- the microcontroller 64 drives the associated switching element 66 to turn off the electronic component 14.
- the microcontroller 64 can be set up to leave the electronic component 14 in the switched-off state for a predetermined period of time, which is likewise stored in the microcontroller 64, even if a "low signal" is output again by the network monitoring circuit 22. Only after expiration of the predetermined period of time does the microcontroller 64 then control the switching element 66 again. Furthermore, the microcontroller 64 can receive the corresponding signal from the sensor 20, as a result of which the microcontroller 64 controls the switching element 66 in order to switch on the electronic component 14 again.
- the comparator 48 and thus the voltage monitoring unit 16 monitors the voltage level 78 continuously, as can be seen from the diagram of FIG. 5, so that it is directly recognized when the voltage level 78 is below or above the predetermined threshold value or the constant reference voltage 80.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980013188.4A CN111712983A (zh) | 2018-02-13 | 2019-02-05 | 监控系统以及电网监控电路 |
CA3089372A CA3089372A1 (en) | 2018-02-13 | 2019-02-05 | Monitoring system and network monitoring circuit |
US16/967,632 US11799283B2 (en) | 2018-02-13 | 2019-02-05 | Monitoring supply voltage system for electronic component and network monitoring circuit |
AU2019222191A AU2019222191B2 (en) | 2018-02-13 | 2019-02-05 | Monitoring system and network monitoring circuit |
EP19703692.4A EP3753080A1 (de) | 2018-02-13 | 2019-02-05 | Überwachungssystem sowie netzüberwachungsschaltung |
US18/353,512 US20240022063A1 (en) | 2018-02-13 | 2023-07-17 | Monitoring system and network monitoring circuit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018103127.0 | 2018-02-13 | ||
DE102018103127.0A DE102018103127A1 (de) | 2018-02-13 | 2018-02-13 | Überwachungssystem sowie Netzüberwachungsschaltung |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/967,632 A-371-Of-International US11799283B2 (en) | 2018-02-13 | 2019-02-05 | Monitoring supply voltage system for electronic component and network monitoring circuit |
US18/353,512 Continuation US20240022063A1 (en) | 2018-02-13 | 2023-07-17 | Monitoring system and network monitoring circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019158400A1 true WO2019158400A1 (de) | 2019-08-22 |
Family
ID=65324368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/052780 WO2019158400A1 (de) | 2018-02-13 | 2019-02-05 | Überwachungssystem sowie netzüberwachungsschaltung |
Country Status (7)
Country | Link |
---|---|
US (2) | US11799283B2 (de) |
EP (1) | EP3753080A1 (de) |
CN (1) | CN111712983A (de) |
AU (1) | AU2019222191B2 (de) |
CA (1) | CA3089372A1 (de) |
DE (1) | DE102018103127A1 (de) |
WO (1) | WO2019158400A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112803720B (zh) * | 2021-03-19 | 2021-06-22 | 中国电子科技集团公司第九研究所 | 多电源系统的电源电压监控电路 |
DE102021002780A1 (de) | 2021-05-31 | 2022-12-01 | Truma Gerätetechnik GmbH & Co. KG | Vorrichtung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3813269A1 (de) | 1988-04-20 | 1989-11-09 | Siemens Ag | Netzueberwachungsschaltung |
US5784232A (en) * | 1997-06-03 | 1998-07-21 | Tecumseh Products Company | Multiple winding sensing control and protection circuit for electric motors |
US20040190211A1 (en) * | 2003-02-26 | 2004-09-30 | Ockert William R. | Load control receiver with line under voltage and line under frequency detection and load shedding |
US20100244563A1 (en) * | 2009-03-27 | 2010-09-30 | Aclara Power-Line Systems Inc. | Under frequency/under voltage detection in a demand response unit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4879625A (en) * | 1987-12-11 | 1989-11-07 | Potenzone Richard A | Voltage monitor |
US4999728A (en) * | 1989-02-27 | 1991-03-12 | Atlas Technology, Inc. | Power surge protection circuit |
BRPI0517519A (pt) * | 2004-10-26 | 2008-10-14 | Technology Res Corp | aparelho para controlar um comutador de interconexão conectando uma fonte de alimentação a uma carga, e, circuito para controlar abertura de um comutador de interconexão conectando uma fonte de alimentação e uma carga |
JP5812653B2 (ja) * | 2011-03-31 | 2015-11-17 | 三菱重工業株式会社 | 熱媒流量推定装置、熱源機、及び熱媒流量推定方法 |
DE102014110481A1 (de) * | 2014-07-24 | 2016-01-28 | Hamburg Innovation Gmbh | Schutzeinrichtung für elektrische Energieversorgungsnetze, Energiequelle, Energieversorgungsnetz sowie Verwendung einer derartigen Schutzeinrichtung |
-
2018
- 2018-02-13 DE DE102018103127.0A patent/DE102018103127A1/de active Pending
-
2019
- 2019-02-05 EP EP19703692.4A patent/EP3753080A1/de active Pending
- 2019-02-05 CA CA3089372A patent/CA3089372A1/en active Pending
- 2019-02-05 AU AU2019222191A patent/AU2019222191B2/en active Active
- 2019-02-05 CN CN201980013188.4A patent/CN111712983A/zh active Pending
- 2019-02-05 US US16/967,632 patent/US11799283B2/en active Active
- 2019-02-05 WO PCT/EP2019/052780 patent/WO2019158400A1/de unknown
-
2023
- 2023-07-17 US US18/353,512 patent/US20240022063A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3813269A1 (de) | 1988-04-20 | 1989-11-09 | Siemens Ag | Netzueberwachungsschaltung |
US5784232A (en) * | 1997-06-03 | 1998-07-21 | Tecumseh Products Company | Multiple winding sensing control and protection circuit for electric motors |
US20040190211A1 (en) * | 2003-02-26 | 2004-09-30 | Ockert William R. | Load control receiver with line under voltage and line under frequency detection and load shedding |
US20100244563A1 (en) * | 2009-03-27 | 2010-09-30 | Aclara Power-Line Systems Inc. | Under frequency/under voltage detection in a demand response unit |
Also Published As
Publication number | Publication date |
---|---|
US11799283B2 (en) | 2023-10-24 |
CN111712983A (zh) | 2020-09-25 |
EP3753080A1 (de) | 2020-12-23 |
CA3089372A1 (en) | 2019-08-22 |
AU2019222191B2 (en) | 2023-10-19 |
AU2019222191A1 (en) | 2020-08-13 |
DE102018103127A1 (de) | 2019-08-14 |
US20240022063A1 (en) | 2024-01-18 |
US20210151978A1 (en) | 2021-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2809019B1 (de) | EC-Motor mit dynamischer Bestimmung der Degradation der Optokoppler | |
DE19924318A1 (de) | Schaltungsanordnung eines Steuergeräts zur Überwachung einer Spannung | |
DE2126560A1 (de) | Schutzschaltung | |
DE3109482A1 (de) | Kurzschlussschutzvorrichtung fuer einen gleichstromsteller | |
WO2001052607A1 (de) | Vorrichtung zur steuerung von betriebsmitteln für mindestens ein elektrisches leuchtmittel und verfahren zur steuerung von betriebsmitteln für mindestens ein elektrisches leuchtmittel | |
DE112017000303T5 (de) | Invertervorrichtung und Verfahren zum Erfassen einer Anomalie bei einer Invertervorrichtung | |
DE102009035919A1 (de) | Energieversorgungseinheit mit konfigurierbaren Ausgangsspannungsbereichen | |
DE102005052042B4 (de) | Verfahren und Anlage zur Steuerung eines Verdichters | |
WO2019192819A1 (de) | Verfahren und vorrichtung zum betreiben eines kraftfahrzeugs | |
WO2019158400A1 (de) | Überwachungssystem sowie netzüberwachungsschaltung | |
EP3183584B1 (de) | Versorgungsspannungsdetektionseinrichtung und verfahren zur detektion einer versorgungsspannung | |
DE102006032698A1 (de) | Vorrichtung und Verfahren zur Steuerung und Absicherung eines Heizelements | |
DE3401761A1 (de) | Ueberwachte regeleinrichtung | |
EP2546852A2 (de) | Bistabiles Sicherheitsrelais | |
DE102017129244A1 (de) | Leistungsversorgungsvorrichtung mit sanftanlauf und schutz | |
EP2133996B1 (de) | Schaltung zur Ansteuerung eines elektrischen Verbrauchers | |
DE4128679C1 (de) | ||
WO1998043334A1 (de) | Elektronische sicherung | |
DE102016201165B4 (de) | Elektronische Schaltung zur Versorgung einer industriellen Steuerung | |
DE102013112692A1 (de) | Asynchronmotor und Verfahren zum Betreiben eines Asynchronmotors | |
DE69818311T2 (de) | Festkörperüberstromrelais | |
DE2431167C3 (de) | Auf ein Überlastungssignal ansprechende, eine zu schützende Einrichtung sofort abschaltende Überwachungsschaltung | |
WO2009103584A1 (de) | Verfahren und vorrichtung zum betreiben einer schalteinheit | |
EP1604548A1 (de) | Heizgerät mit einem schmiegsamen wärmeteil | |
DE102006033686B3 (de) | Erhöhte Betriebssicherheit für Subsysteme beim Motorstart |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19703692 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 3089372 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2019222191 Country of ref document: AU Date of ref document: 20190205 Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2019703692 Country of ref document: EP Effective date: 20200914 |