WO2022069469A1 - Elektronikmodul und anlage - Google Patents
Elektronikmodul und anlage Download PDFInfo
- Publication number
- WO2022069469A1 WO2022069469A1 PCT/EP2021/076644 EP2021076644W WO2022069469A1 WO 2022069469 A1 WO2022069469 A1 WO 2022069469A1 EP 2021076644 W EP2021076644 W EP 2021076644W WO 2022069469 A1 WO2022069469 A1 WO 2022069469A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mems switch
- voltage
- mems
- electronic module
- module according
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H59/00—Electrostatic relays; Electro-adhesion relays
- H01H59/0009—Electrostatic relays; Electro-adhesion relays making use of micromechanics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0036—Switches making use of microelectromechanical systems [MEMS]
- H01H2001/0084—Switches making use of microelectromechanical systems [MEMS] with perpendicular movement of the movable contact relative to the substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H59/00—Electrostatic relays; Electro-adhesion relays
- H01H59/0009—Electrostatic relays; Electro-adhesion relays making use of micromechanics
- H01H2059/0063—Electrostatic relays; Electro-adhesion relays making use of micromechanics with stepped actuation, e.g. actuation voltages applied to different sets of electrodes at different times or different spring constants during actuation
Definitions
- the invention relates to an electronics module with an electrical circuit and at least one first MEMS switch and a system.
- MEMS Micro-Electro-Mechanical Switch
- MEMS switches are described, for example, in the publications DE102017215236A1 and WO 2018028947A1.
- MEMS switches regularly have a bending element, for example a bending beam, which can be deflected, in particular, electrostatically.
- the bending element carries electrical switching contacts which, as a result of the deflection, can be brought into contact with correspondingly arranged mating contacts and can thus provide or interrupt an electrically conductive connection.
- Electronic modules with MEMS switches therefore have switching functionalities, which allow electrical isolation between a control circuit, by means of which the bending element of the MEMS switch is deflected, and a load circuit, which is switched with the MEMS switch.
- the object of the invention to create an improved electronic module in which a galvanically isolated voltage measurement is possible.
- the electronic module according to the invention should be manufacturable without additional process costs or process expenses.
- the electronic module according to the invention has an electrical circuit and at least one first MEMS switch with at least one first control contact with a first switching threshold voltage and at least one second MEMS switch with a second control contact with a second switching threshold voltage that is different from the first.
- the control contacts, ie the first control contact and the control contact, of the first and second MEMS switch are connected to the electrical circuit.
- voltages in the electrical circuit can be measured using the first MEMS switch and using the second MEMS switch in that the first and/or the second MEMS switch are switched when the first and/or the second switching threshold voltage is exceeded . Because of the different first and second switching threshold voltages, the electrical voltage in the electrical circuit can thus be inferred.
- the voltage is therefore measured by means of a first and a second MEMS switch. Consequently, the voltage measurement is galvanically isolated from the electrical circuit. Only the first and the second control contact have to be connected to the electrical circuit. Since the voltage can be measured using MEMS switches in the electronic module according to the invention, electrical circuits can be provided with additional MEMS switches with a first MEMS switch and a second MEMS switch. Further process steps for the provision of other components are not necessary with the electronic module according to the invention. So if MEMS switches are provided anyway in electronic modules in the electrical circuit, first MEMS switch and second MEMS switch for measuring voltages can also be easily integrated into the manufacturing process of the electronic module according to the invention.
- additional components such as optocouplers for voltage measurement can be dispensed with. Consequently, despite a minimally increased space requirement as a result of the additional MEMS switch(es), there is a total saving in space and thus also a saving in costs.
- the first MEMS switch is preferably designed to switch a first signal that indicates that the first switching threshold voltage has been exceeded
- the second MEMS switch is preferably designed to switch a further, second signal that indicates that the second switching threshold voltage indicates
- the electronics module has a signaling device which outputs at least one signal dependent on a switching position of the first MEMS switch and a switching position of the second MEMS switch.
- the signaling device can output a signal that depends on the switch position of the first MEMS switch and on the switch position of the second MEMS switch, or both on the switch position of the first MEMS switch and on the switch position of the second MEMS -Switch output pending signal.
- the first control contact and the second control contact are preferably connected to an identical electrical potential of the electrical circuit.
- a mating contact located at a common ground potential is each assigned to the first control contact and the second control contact.
- the first and second control contacts are connected to partial voltages of a voltage divider in the electrical circuit.
- the first switching threshold voltage and the second switching threshold voltage can also be related to one another from partial voltages of a voltage divider. Accordingly, voltages can also be measured in this configuration using the first MEMS switch and the second MEMS switch.
- the first MEMS switch and the second MEMS switch are particularly preferably connected in parallel to one another.
- a voltage interval can be formed very easily with the first switching threshold voltage of the first MEMS switch and the second switching threshold voltage of the second MEMS switch, so that as a result of the switching operations of the first MEMS switch and the second MEMS switch, a level of the voltage of the electrical circuit relative to the voltage interval can be easily determined.
- the phrase means that the first and second MEMS switches are connected in parallel to one another, that the first and second MEMS switches each have a source and a drain contact, the source and drain contact of the first MEMS switch being connected by means of the first switch contact can be conductively connected along a first conduction path and source and drain contact of the second MEMS switch can be conductively connected by means of the second switch contact along a second conduction path, the first and second conduction path being connected or switchable in parallel with one another.
- the source and drain contact of the respective first and/or second MEMS switch in each case form those switching contacts which are electrically conductively connected in each case by switching the respective first and/or second MEMS switch or can be separated electrically.
- the first and second control contact can each be referred to as the gate contact of the first and second MEMS switch.
- the electronics module according to the invention expediently has a signaling device which emits at least one signal dependent on a switching position of the first MEMS switch and a switching position of the second MEMS switch.
- the signaling device is preferably the signaling device already described above. furnishings .
- the signaling device can output a signal that depends on the switch position of the first MEMS switch and on the switch position of the second MEMS switch, or both on the switch position of the first MEMS switch and on the switch position of the second MEMS -Switch output pending signal.
- the first MEMS switch and second MEMS switch are connected to an identical voltage potential of the electrical circuit with the first and second control contact, and if the first and second MEMS switches are connected in parallel to one another, then if the lowest switching threshold voltage is exceeded by the voltage in the electrical circuit the associated MEMS switch is switched.
- the corresponding MEMS switch can now switch a signal which indicates that the associated switching threshold voltage has been exceeded. If the voltage of the electrical circuit reaches the additional switching threshold voltage of the associated MEMS switch, this MEMS switch also switches through and can, for example, actively switch another, second signal, which indicates that the voltage exceeds the associated switching threshold voltage.
- this has at least a third MEMS switch with a control contact with a switching threshold voltage which differs from the first and/or second switching threshold voltage.
- a fourth MEMS switch with a control contact with a switching threshold voltage can also be part of the electronics module, which is different from the first and/or second and/or third switching threshold voltage.
- the first and/or the second and/or the third and/or more and/or all of the MEMS switches are each equipped with a bending element. ment, preferably each with a bending beam formed.
- the control contact forms an electrode which deflects the bending element, in particular the bending beam.
- the bending element, in particular the bending beam expediently carries at least one switching contact, by means of which a conductive connection can be provided as a result of a deflection of the bending element.
- a galvanically isolated voltage measurement is possible.
- a galvanically isolated voltage measurement is possible in particular by means of the further development described below.
- a galvanically isolated voltage measurement is possible in such a way that the features of the development of the invention described below are implemented:
- the first and the second MEMS switch are formed with one bending element each, in particular one bending beam each, and the first and second MEMS switches preferably have at least two switching contacts for each bending element, which are conductively connected to one another and which can make or break an electrically conductive connection.
- the MEMS switches of the electronic module according to the invention can switch signals, in particular the first signal described above, which indicates that the first switching threshold voltage has been exceeded, and the second signal, which indicates that the second switching threshold voltage has been exceeded, electrically isolated from the control contacts of the electronic module. Voltages present at the control contacts can easily be measured by means of the switched signals, in particular by means of the first and/or second signal.
- the voltage applied to the first control contact is dimensioned relative to the bending element of the first MEMS switch, i. H .
- the voltage applied to the control contact is measured relative to a nem potential, in particular zero potential, of the bending element of the first MEMS switch.
- the voltage present at the second control contact is measured relative to a potential, in particular zero potential, of the bending element of the second MEMS switch.
- the signaling device ideally compares a voltage of the electronic circuit with at least one voltage interval, in which the first and/or second MEMS switch each define a limit of the voltage interval.
- a voltage interval can be formed by means of the first and/or second MEMS switch, with which the voltage of the electrical circuit can be compared.
- the first and/or second and/or further switching threshold voltage(s) is/are preferably defined by means of at least one geometric and/or material-related parameter of the MEMS switch.
- the geometric and/or material-related parameter is preferably a length and/or width and/or thickness of a bending element and/or an electrode spacing and/or a dielectric and/or a layer stress and/or a layer material of the MEMS switch.
- a length or width or thickness of a bending element can thus easily define the switching threshold voltage.
- an electrode gap or a dielectric or a layer stress or a layer material have an influence on the switching threshold voltage of the MEMS switch.
- the electrical circuit preferably has a further MEMS switch and the electrical circuit forms a load circuit of the further MEMS switch.
- the load circuit of the electronic module is switched with a MEMS switch and a voltage of the electrical circuit is switched by means MEMS switches measured . Accordingly, the switching of the load circuit and the measurement of the voltage of the load circuit are implemented using the same technology.
- the system according to the invention has in particular a control and/or regulation module.
- the system includes an electronic module as previously described on .
- the electronics module is particularly preferably part of the open-loop and/or closed-loop control module.
- Figure 1 shows a first MEMS switch of the electronic module according to the invention in cross section
- FIG. 2 shows the first MEMS switch according to FIG. 1 schematically in a plan view
- FIG. 3 shows the electronic module according to the invention with the first MEMS switch according to FIGS. 1 and 2 and with a second MEMS switch, schematically in a plan view and
- FIG. 4 shows a system according to the invention with the electronic module according to the invention according to FIG. 3 in a schematic outline sketch.
- the MEMS switch 10 shown in FIG. 1 of the electronic module according to the invention (not shown in FIGS. 1 and 2) has a substrate 20 and a bending beam 30 attached to it.
- a free end 40 of the bending beam 30 can be deflected in the direction of the substrate 20 .
- an electrode 50 is applied flatly to the substrate 20 on its surface facing the bending beam 30;
- the counter-electrode (not shown explicitly in the drawing) located on the cantilever 30 exerts an electrostatic attraction, so that the free end 40 of the cantilever 30 can move towards the electrode 50 and consequently towards the substrate 20 .
- the electrode 50 which forms a first control contact of the first MEMS switch 10 is subjected to a voltage, whereupon the bending beam 30 deflects.
- the bending beam 30 has two switching contacts at its free end 40, which are conductively connected to one another perpendicularly to the plane of the drawing and which are located at the free end 40 once in front of the plane of the drawing and once behind the plane of the drawing .
- the two switching contacts can also be referred to as source and drain contacts. Consequently, the switching contacts can establish or interrupt an electrically conductive connection perpendicular to the plane of the drawing. In the exemplary embodiment shown, an electrically conductive connection is established when the free end 40 of the bending beam 30 is moved towards the substrate 20 .
- a voltage is required at the electrode 50 forming the first control contact, which voltage forms a first switching threshold voltage.
- This first switching threshold voltage depends on the geometric dimensions of the bending beam 30 . The greater the length L of the bending beam 30 (see FIG. 2), the easier it is to move the bending beam 30 towards the substrate 20 . As the length L increases, the required switching threshold voltage for deflecting the free end 40 of the first MEMS switch 10 therefore falls.
- the bending stiffness of the bending beam 30 of the first MEMS switch 10 increases, so that the first switching threshold voltage increases accordingly. Furthermore, the first switching threshold voltage decreases with an increasing distance g of the bending beam 30 from the substrate 20 to .
- the first switching threshold voltage can therefore be tailored in the first MEMS switch 10 by means of the geometric dimensions.
- the electronic module 60 according to the invention FIG. 3
- the electronic module 60 also has a second MEMS switch 10', in which the flexible beam 30' is provided with a shorter length L, so that a higher voltage for switching the second MEMS switch 10' must be applied to a second control contact 50' of the second MEMS switch 10'. Consequently, the second MEMS switch 10 ′ has a higher switching threshold voltage than the first MEMS switch 10 .
- First MEMS switch 10 and second MEMS switch 10' are each arranged at the same potential of a load circuit 70, which includes a load potential V Last and a ground potential V Last , GND.
- Load potential V Last and ground potential V Last , GND are each connected to the electrode 50 and the counter electrode, not shown in Figure 1, of the first MEMS switch and to the second control contact 50' of the second MEMS switch 10' and one not shown in Figure 1 second counter-control contact electrically conductively connected.
- the ground potential V Last , GND is brought to the bending beams 30, 30 'of the first 10 and the second MEMS switch 10', while the load potential V Last in each case to the electrode 50 located on the substrate 20 and the second control contact 50' is guided.
- the first MEMS switch 10 and the second MEMS switch 10′ can therefore be switched by means of the load potential V Last and the ground potential V Last , GND.
- the load potential V Last can be contacted with an electrical outlet Out.
- line Out and load potential V Last are each connected to a comb-like structure 80 , 90 , which each have comb teeth 100 , 110 , which can be brought into electrically conductive contact with one another by means of further MEMS switches 120 .
- the additional MEMS switches 120 are switched, then the comb teeth 100, 110 are brought into electrically conductive contact with one another, so that the lead Out is brought to the load potential V Last .
- the voltage between the load potential V Last and the ground potential V Last , GND can be determined by means of the first MEMS switch 10 and the second MEMS switch 10′.
- the MEMS switch 10 switches on when the load voltage V load exceeds the first threshold switching voltage.
- the first MEMS switch 10 turns on and outputs a voltage signal Viow by the first MEMS switch 10 turning on a first signal circuit Vi ow .
- a load potential V load that exceeds the first switching threshold voltage can consequently be detected at the first signal circuit.
- the second MEMS switch 10′ correspondingly switches through a second signal circuit, which outputs a signal Vhi g h . Based on the voltage signals Vi ow and Vhigh, which form a signaling device according to the present invention, it can consequently be easily determined whether the load potential V load is within the limits of the first threshold switching voltage and the second threshold switching voltage.
- the electronic module 60 according to the invention is part of a control and regulation module 200, which in turn is part of an industrial plant 300 according to the invention.
- the industrial installation 300 serves to control and regulate an industrial engine, which is not shown in the drawing.
Landscapes
- Micromachines (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023519121A JP2023543239A (ja) | 2020-09-30 | 2021-09-28 | 電子モジュール及び装置 |
EP21786804.1A EP4193377A1 (de) | 2020-09-30 | 2021-09-28 | Elektronikmodul und anlage |
CN202180067255.8A CN116250054A (zh) | 2020-09-30 | 2021-09-28 | 电子模块以及设备 |
US18/246,830 US20230360872A1 (en) | 2020-09-30 | 2021-09-28 | Electronic Module and Apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20199173.4A EP3979291A1 (de) | 2020-09-30 | 2020-09-30 | Elektronikmodul und anlage |
EP20199173.4 | 2020-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022069469A1 true WO2022069469A1 (de) | 2022-04-07 |
Family
ID=72709046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/076644 WO2022069469A1 (de) | 2020-09-30 | 2021-09-28 | Elektronikmodul und anlage |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230360872A1 (de) |
EP (2) | EP3979291A1 (de) |
JP (1) | JP2023543239A (de) |
CN (1) | CN116250054A (de) |
WO (1) | WO2022069469A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19854450A1 (de) * | 1998-11-25 | 2000-06-15 | Tyco Electronics Logistics Ag | Mikromechanisches elektrostatisches Relais |
US20080174390A1 (en) * | 2007-01-18 | 2008-07-24 | Fujitsu Limited | Micro-switching device and method of manufacturing the same |
EP2398028A2 (de) * | 2010-06-17 | 2011-12-21 | General Electric Company | MEMS-Schaltarray mit einem Substrat zur Leitung von Schaltstrom |
US8659326B1 (en) * | 2012-09-28 | 2014-02-25 | General Electric Company | Switching apparatus including gating circuitry for actuating micro-electromechanical system (MEMS) switches |
US20140158506A1 (en) * | 2012-12-06 | 2014-06-12 | Korea Advanced Institute Of Science & Technology | Mechanical switch |
WO2018028947A1 (de) | 2016-08-11 | 2018-02-15 | Siemens Aktiengesellschaft | Schaltzelle mit halbleiterschaltelement und mikroelektromechanischem schaltelement |
DE102017215236A1 (de) | 2017-08-31 | 2019-02-28 | Siemens Aktiengesellschaft | MEMS-Schalter und Verfahren zur Herstellung eines MEMS-Schalters |
-
2020
- 2020-09-30 EP EP20199173.4A patent/EP3979291A1/de not_active Withdrawn
-
2021
- 2021-09-28 US US18/246,830 patent/US20230360872A1/en active Pending
- 2021-09-28 WO PCT/EP2021/076644 patent/WO2022069469A1/de active Application Filing
- 2021-09-28 EP EP21786804.1A patent/EP4193377A1/de active Pending
- 2021-09-28 JP JP2023519121A patent/JP2023543239A/ja active Pending
- 2021-09-28 CN CN202180067255.8A patent/CN116250054A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19854450A1 (de) * | 1998-11-25 | 2000-06-15 | Tyco Electronics Logistics Ag | Mikromechanisches elektrostatisches Relais |
US20080174390A1 (en) * | 2007-01-18 | 2008-07-24 | Fujitsu Limited | Micro-switching device and method of manufacturing the same |
EP2398028A2 (de) * | 2010-06-17 | 2011-12-21 | General Electric Company | MEMS-Schaltarray mit einem Substrat zur Leitung von Schaltstrom |
US8659326B1 (en) * | 2012-09-28 | 2014-02-25 | General Electric Company | Switching apparatus including gating circuitry for actuating micro-electromechanical system (MEMS) switches |
US20140158506A1 (en) * | 2012-12-06 | 2014-06-12 | Korea Advanced Institute Of Science & Technology | Mechanical switch |
WO2018028947A1 (de) | 2016-08-11 | 2018-02-15 | Siemens Aktiengesellschaft | Schaltzelle mit halbleiterschaltelement und mikroelektromechanischem schaltelement |
DE102017215236A1 (de) | 2017-08-31 | 2019-02-28 | Siemens Aktiengesellschaft | MEMS-Schalter und Verfahren zur Herstellung eines MEMS-Schalters |
Also Published As
Publication number | Publication date |
---|---|
JP2023543239A (ja) | 2023-10-13 |
US20230360872A1 (en) | 2023-11-09 |
EP3979291A1 (de) | 2022-04-06 |
EP4193377A1 (de) | 2023-06-14 |
CN116250054A (zh) | 2023-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19930779B4 (de) | Mikromechanisches Bauelement | |
DE102008035634B4 (de) | Schaltleiste für die Erfassung von Hindernissen und Vorrichtung zum Erfassen von Hindernissen | |
EP2309647B1 (de) | Bedieneinrichtung für ein Elektrogerät | |
EP2985578B1 (de) | Wägezelle zur gewichtskraftmessung | |
EP2053627B1 (de) | NH-Sicherungslasttrenner mit Stromwandler | |
EP2250468B1 (de) | Magnetischer passiver positionssensor | |
DE102011076008B4 (de) | Kraftaufnehmer, insbesondere Wägezelle | |
DE102004014708B4 (de) | Halbleitersensor für eine dynamische Grösse | |
EP3566037B1 (de) | Linearisierter mikromechanischer sensor | |
DE102008054749A1 (de) | Drehratensensor und Verfahren zum Betrieb eines Drehratensensors | |
EP3956741B1 (de) | Eingabevorrichtung mit beweglicher handhabe auf kapazitiver detektionsfläche und kapazitiven koppeleinrichtungen | |
WO2022069469A1 (de) | Elektronikmodul und anlage | |
EP3359937A1 (de) | Sensor und verfahren zur messung eines drucks | |
DE202016008824U1 (de) | Reversible elektronische Schutzschalterklemme | |
WO2015063150A1 (de) | Kapazitives sensorelement mit integrierter mess- und referenzkapazität | |
EP3764054B1 (de) | Sensoranordnung zum erfassen einer auslenkung einer drahtelektrode | |
DE102013224235B4 (de) | Sensorsystem zur kapazitiven Abstandsmessung | |
DE102020120803B3 (de) | Hall-Sensor | |
EP0975058A2 (de) | Kontaktvorrichtung | |
EP3738211B1 (de) | Verfahren zur bestimmung der auslenkung des betätigungsglieds eines kapazitiven mehrwege-kraftsensorbausteins | |
DE102021110439B4 (de) | Elektrischer Kondensator | |
EP3980793B1 (de) | Beschleunigungsmessvorrichtung mit verbesserter biasstabilität | |
DE102016218478B4 (de) | Symmetrischer Spannungsteiler | |
DE102021102765A1 (de) | Sensoreinrichtung mit Überlastschutz | |
DE102019007469A1 (de) | Hochauflösende Kraftmessanordnung |
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: 21786804 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2021786804 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2021786804 Country of ref document: EP Effective date: 20230309 |
|
ENP | Entry into the national phase |
Ref document number: 2023519121 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |