EP3298689A1 - Signal processing device and control device - Google Patents
Signal processing device and control deviceInfo
- Publication number
- EP3298689A1 EP3298689A1 EP16715294.1A EP16715294A EP3298689A1 EP 3298689 A1 EP3298689 A1 EP 3298689A1 EP 16715294 A EP16715294 A EP 16715294A EP 3298689 A1 EP3298689 A1 EP 3298689A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resistor
- voltage divider
- frequency
- signal
- signal output
- 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.)
- Ceased
Links
- 230000001419 dependent effect Effects 0.000 claims abstract description 28
- 239000003990 capacitor Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 11
- 230000002238 attenuated effect Effects 0.000 description 7
- 238000003745 diagnosis Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/06—Frequency selective two-port networks including resistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H1/02—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network of RC networks, e.g. integrated networks
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
- H03H7/425—Balance-balance networks
- H03H7/427—Common-mode filters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
Definitions
- the present invention relates to a signal processing device for processing a differential signal of a sensor and a
- the present invention will be illustrated below mainly in connection with sensors for electric machines, it is not limited thereto. Rather, the present invention can be used in any system in which differential signals are evaluated.
- Electric machines e.g. Electric motors are used today in a variety of applications.
- Electric motors e.g. Electric motors are used today in a variety of applications.
- Electric vehicles are used as drive motors.
- Position sensors For exact control of such electrical machines, it is necessary to know their position or the position of the rotor of such an electric machine.
- detecting the position of the rotor e.g. Position sensors, such as
- the output signals of these position sensors can then be e.g. be evaluated by a microcontroller and thereby determines the position of the rotor of the electrical machine.
- Microcontroller lie. Furthermore, it is often required that the information necessary for the diagnosis be detected in the event of an error.
- EP 2 837 915 A1 shows a motor control with a corresponding resolver monitoring.
- Disclosure of the invention discloses a signal processing device with the features of claim 1 and a control device with the
- a signal processing device for processing a differential signal of a sensor with a predetermined signal frequency, with a positive signal input, which is coupled to a positive sensor output of the sensor, and a negative signal input, which is coupled to a negative sensor output of the sensor, with a positive signal output and a negative signal output having a first frequency dependent resistor between the positive signal input and the positive signal output and a second frequency dependent resistor between the negative signal input and the negative
- first and the second frequency-dependent resistor are adapted to allow electrical signals to pass unattenuated with the predetermined signal frequency, with a first voltage divider, which is at least partially arranged parallel to the first frequency-dependent resistor and is formed, a voltage between the positive signal input and to divide the positive signal output by a predetermined ratio, and a second voltage divider disposed at least partially in parallel with the second frequency-dependent resistor and configured to divide a voltage between the negative signal input and the negative signal output by a predetermined ratio.
- a control device for an electrical machine with a
- Signal processing device having a computing device, which has a first analog-to-digital converter which is coupled to the positive signal output of the signal processing device, and which has a second analog-to-digital converter which is connected to the negative signal output of the signal processing device is coupled.
- a differential signal is to be understood as meaning a signal which is transmitted via two signal lines.
- the actual information content is characterized by the difference between the voltages or the currents of the two signal lines.
- sensors can provide a differential signal on two signal lines at a given signal frequency, eg, one
- AC voltage, output Under the predetermined signal frequency can be understood not only a single frequency but also a frequency range around the specified frequency with a predetermined width. This frequency range is also referred to as useful frequency range.
- the differential signal can be based on the difference between a voltage, a
- Sensors may be any type of sensor that outputs a differential signal, in particular an AC signal, whose frequency is known or whose signal components are within a known useful frequency range.
- a sensor may include an angle sensor, such as a position sensor. a resolver, his.
- a sensor within the scope of this patent application may e.g. also a microphone or another
- Patent application e.g. a capacitor are understood, the resistance or impedance value of which depends on the frequency of the voltage applied to the capacitor.
- the capacitor thus acts like an AC resistor with a frequency-dependent impedance value.
- the term "unimpaired” is to be understood as meaning that the respective signal is attenuated only to a very small extent, but low attenuation is possible owing, for example, to parasitic resistances or the like
- connection of the sensor to a computing device offers only a limited robustness against shunts.
- Under shunts are to understand parasitic resistances between a signal line of the sensor and a voltage which is between ground and the operating voltage.
- the operating voltage is to be understood as the operating voltage of the entire system. In vehicles, for example, this is usually 12V - 14V.
- the present invention prepares the differential signal such that the amplitude of the useful signal, that is to say the alternating component of the signal emitted by the sensor, is largely retained.
- frequency-dependent resistors are used both in the positive signal branch and in the negative signal branch, the electrical signals with the predetermined
- the DC component of the signal is divided down by the voltage dividers, e.g. by a factor of 3 or 30%.
- the DC components of the signals through the voltage divider are therefore greatly divided down but still transmitted.
- at least a part of each of the voltage dividers is connected in parallel to the corresponding frequency-dependent resistor. If capacitors are used as frequency-dependent resistors, they represent an interruption for the DC component. Consequently, only the resistors of the voltage divider are effective for the DC components. For example, can each one of the resistors of the corresponding voltage divider parallel to the
- Frequency-dependent resistor can be arranged.
- the present invention offers a high robustness against shunts due to the strong reduction of the DC component of the sensor signals.
- a shunt only increases or decreases that to a very limited extent
- the actual sensor signals are only weakly attenuated. Consequently, the DC potentials at the signal outputs depend only on the signal processing device itself. These may e.g. be approximately half the reference voltage of the analog-to-digital converter in the computing device, which is an up and down maximum amplitude for the actual sensor signals or the
- the signal processing device may comprise a first low-pass filter, which is arranged electrically between the positive signal input and the positive signal output and is designed to allow electrical signals to pass approximately unattenuated at the predetermined signal frequency.
- the signal processing device may have a second
- Have low-pass filter which is arranged electrically between the negative signal input and the negative signal output and is designed to allow electrical signals with the predetermined signal frequency to pass approximately unattenuated.
- Signal processing device are coupled, be filtered out.
- the signal processing device may include a
- the signal processing device may comprise a resistor network which is connected between the first voltage divider and the second
- Ground terminal is arranged and is adapted to set a DC voltage at the positive signal output and the negative signal output to a predetermined value.
- the resistor network makes it possible to precisely set the DC potential at the signal outputs. Due to the strong scaling of the DC component of the sensor signals whose DC component has only a very small influence on DC potential at the signal outputs.
- Voltage divider may be arranged parallel to the first frequency-dependent resistor. Furthermore, a second resistor of the first
- Voltage divider may be disposed between the first resistor of the first voltage divider and the positive signal output, and a third resistor of the first voltage divider may be disposed between the second resistor of the first voltage divider and a ground terminal.
- the first signal output may e.g. with an account point between the second
- Voltage divider may be arranged parallel to the second frequency-dependent resistor. Furthermore, a second resistor of the second
- Voltage divider and the negative signal output to be arranged and a third resistor of the second voltage divider may be disposed between the second resistor of the second voltage divider and a ground terminal.
- the second signal output may e.g. also be coupled to a node between the second resistor and the third resistor.
- Voltage divider parallel to the second frequency-dependent resistor is the first resistor only for the DC voltage component of the respective Signal effective. This can therefore be selected to be correspondingly high, so that the desired division ratio in the respective
- Voltage divider adjusts.
- the alternating component of the respective signal is only influenced by the second and third resistor of the respective voltage divider.
- Input voltage range e.g. a downstream digital-to-analog converter stage as good as possible is exploited.
- the DC voltage component may e.g. be set to half the reference or reference voltage of the analog-to-digital converter.
- Voltage divider be designed as a resistor of the first low-pass filter.
- the first low-pass filter may have a low-pass capacitance, which is arranged between the positive signal output and the ground connection.
- the second resistor of the second voltage divider may be formed as a resistor of the second low-pass filter.
- the second low-pass filter may have a low-pass capacity that is between the negative
- the first low pass may be at least partially integrated into the first voltage divider.
- the second low-pass filter can be at least partially integrated into the second voltage divider.
- the resistor network may be at least partially integrated into the first voltage divider and the second voltage divider.
- the resistor network may include a first
- the resistor network may have a second network resistance connected to the ground terminal and is coupled to the third resistor of the first voltage divider and the third resistor of the second voltage divider. This allows a very simple adjustment of the DC potential to the
- the signal processing device may include a first input capacitance located between the positive signal input and the ground terminal. Furthermore, the first input capacitance located between the positive signal input and the ground terminal. Furthermore, the first input capacitance located between the positive signal input and the ground terminal.
- Signal processing means have a second input capacitance, which is arranged between the negative signal input and the ground terminal.
- the capacitances are in particular dimensioned such that they do not let signals with the predetermined signal frequency pass. These capacitances consequently represent a short to ground for signals which have a much higher frequency than the given one
- Such high frequency disturbances can e.g. be electrostatic discharges or the like and are therefore already attenuated or derived at the input of the signal processing device.
- FIG. 1 shows a block diagram of an embodiment of an inventive device
- FIG. 2 shows a circuit diagram of a further embodiment of a signal processing device according to the invention
- FIG. 3 shows a diagram with a frequency characteristic of an embodiment of a signal processing device according to the invention.
- FIG. 4 shows a block diagram of an embodiment of a control device according to the invention.
- FIG. 1 shows a block diagram of an embodiment of a signal processing device 1-1 according to the invention.
- the signal processing device 1-1 has a positive signal input 5-1 and a negative signal input 6-1. Via these signal inputs 5-1 and 6-1, the signal processing device 1-1 can be coupled to a sensor (not explicitly shown).
- the signal processing device 1-1 has a first signal path from the positive signal input 5-1 to a positive one
- a frequency-dependent resistor CIH, CIL is arranged in each of the signal paths. This can e.g. be designed as a capacitor CIH, CIL.
- the frequency-dependent resistor CIH, CIL is in each case dimensioned such that it can pass signals of the predetermined frequency 4 approximately unchanged or forwards them approximately unattenuated.
- a first resistor R1H, RIL is arranged in each case in parallel with the capacitor CIH, CIL. Between the parallel circuit of capacitor CIH, CIL and first resistor R1H, RIL is in each case a third resistor R3H, R3L against Ground switched.
- the terms first and third are for the sole purpose of distinction and do not represent any order or ranking.
- the two resistors R1H, R3H and R1L, R3L form one each
- the voltage divider 11 and 12 serve to forward the DC component in the signals which are received via the signal inputs 5-1, 6-1, only very greatly reduced to the signal outputs 7-1, 8-1.
- the voltage dividers may each have the DC components, e.g. share in a ratio of 1/3.
- Fig. 2 shows a circuit diagram of another embodiment of a
- Signal processing device 1-2 which is coupled to a sensor 2-1.
- the sensor 2-1 is shown as a combination of a voltage source U with an inductance L and a resistor R. This
- the equivalent circuit diagram is merely an illustration of the sensor 2-1 and, depending on the sensor 2-1 used, may deviate from the one shown here in other embodiments.
- the sensor 2-1 has a positive and a negative sensor output 9-1, 10-1. Via these outputs 9-1, 10-1, the sensor 2-1 transmits to the signal processing device 1-2 a differential signal 3-1 in which the voltage difference between the two signal lines is the actual one
- the differential signal 3-1 is transmitted to the signal processing device 1-2.
- the signal processing device 1-2 has two signal paths, which in the
- a capacitor C5H, C5L is grounded in each of the signal branches.
- the capacitors C5H, C5L are dimensioned such that signals or voltages at the predetermined frequency 4 substantially unchanged or undamped in be transmitted to the signal path.
- the capacitors C5H, C5L thus have such a small capacity that they are responsible for the voltages with the
- capacitors C5H, C5L serve to derive high-frequency interfering signals having a frequency greater than the predetermined frequency 4.
- Signal input 5-2 a resistor R6H against the supply voltage VDD connected.
- In the signal path of the negative signal input 6-2 is a
- Resistor R6L connected to ground GND. These resistors R6H, R6L serve to change the DC potential to the
- Signal inputs 9-1, 10-1 limit in case of a shunt. Furthermore, a diagnosis of the line interruption in the signal paths is made possible, because then the signal paths are pulled to different DC voltage levels.
- the capacitors C5H, C5L are followed in each signal branch by a parallel connection of a resistor RIH, RIL and a capacitor CIH, CIL. In turn, this resistor is followed by a resistor R2H, R2L, which is coupled to the respective signal output 7-2, 8-2.
- Capacitors CIH, CIL are dimensioned so that they represent only a very low resistance for voltages with the given frequency 4 and only represent a high resistance for signals with a lower than the predetermined frequency 4. Signals with the predetermined signal frequency 4 thus pass through the parallel circuit essentially unattenuated. For the signals with a lower frequency than the
- predetermined frequency 4 is the value of the respective resistor RIH, RIL crucial.
- R2H together with R3H as a voltage divider, also acts at the given signal frequency 4. So it can be synonymous with the given
- Signal frequency 4 by the voltage divider from R2H and R3H dividing the voltage with the predetermined signal frequency 4 are made, if desired.
- the division factor is, however, smaller at the given signal frequency 4 than in the case of a DC voltage, since RIH also acts in addition to R2H at a DC voltage. The same applies in particular to the
- R2L and R3L Interaction of R2L and R3L with RIL.
- a respective resistor R3H, R3L is arranged in each signal path and is coupled to the corresponding resistor R3L, R3H of the other signal path.
- a resistor R5 is connected to the supply voltage VDD and a resistor R4 to ground GND. With this voltage divider between VDD and GND, the DC potential at the signal outputs 7-2, 8-2 can be set.
- a capacitor C3 arranged between the node between the resistors R3H and R3L and GND serves to stabilize the voltage of the voltage divider at the predetermined signal frequency 4.
- a capacitor C2H, C2L is arranged between the corresponding signal output 7-2, 8-2 and ground.
- These capacitors C2H, C2L together with the resistors R2H, R2L each form a low-pass filter.
- This low-pass filter is dimensioned such that it allows signals to pass at the predetermined frequency 4, that is, to forward to the signal outputs 7-2, 8-2 and attenuates signals at a higher frequency, that is dissipates to ground.
- FIG. 3 shows a diagram with an exemplary frequency profile of the embodiment of the signal processing device according to the invention of FIG. 2.
- the ordinate axis of the diagram indicates the amplitude response of the signal.
- the abscissa axis indicates the frequency.
- signals with a frequency of about 1 kHz to 100 kHz are transmitted with low attenuation.
- Signals with a frequency of less than 1 kHz are attenuated by about half.
- Signals with a frequency greater than lOOKHz are more attenuated with increasing frequency.
- the attenuation of these signals corresponds to the attenuation of an RC low-pass filter.
- the signal processing device 1-2 conducts the signals very well at the predetermined frequency 4 and at the same time attenuates signals having frequencies which are less than 1 kHz or more than 100 kHz.
- signals with a DC component ie a frequency of 0, are not completely attenuated, as would be the case with a purely capacitive coupling between the sensor and the evaluation circuit. Rather, low-frequency Transmit signal components including the DC component with a constant frequency over the transmission factor, in contrast to the falling with decreasing frequency transmission at a pure high-pass. A diagnosis of errors, such as a shunt or a short circuit is therefore very easy.
- the control device 20 has a computing device 21, which is designed to control a motor 23 via a control output 25.
- the movement of the motor 23 is detected by a sensor 2-2, which has a positive and a negative sensor output 9-2, 10-2 a differential
- Signal processing 1-3 outputs.
- the signal processing device 1-3 outputs the processed signals via signal inputs 22-1, 22-2 to analog-to-digital converters 24-1, 24-2 of the computing device 21, which digitize the signals.
- the digitized signals can be used to determine the position of the rotor of the electric motor 23 and
- the present invention may e.g. also be used for the signal processing of signals in audio applications or the like.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015209277.1A DE102015209277A1 (en) | 2015-05-21 | 2015-05-21 | Signal processing device and control device |
PCT/EP2016/057693 WO2016184605A1 (en) | 2015-05-21 | 2016-04-08 | Signal processing device and control device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3298689A1 true EP3298689A1 (en) | 2018-03-28 |
Family
ID=55699639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16715294.1A Ceased EP3298689A1 (en) | 2015-05-21 | 2016-04-08 | Signal processing device and control device |
Country Status (5)
Country | Link |
---|---|
US (1) | US10320359B2 (en) |
EP (1) | EP3298689A1 (en) |
CN (1) | CN107580754A (en) |
DE (1) | DE102015209277A1 (en) |
WO (1) | WO2016184605A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016218478B4 (en) | 2016-09-26 | 2020-03-26 | Knick Elektronische Messgeräte GmbH & Co. KG | Symmetrical voltage divider |
WO2022124412A1 (en) * | 2020-12-11 | 2022-06-16 | マブチモーター株式会社 | Control device for rotation detector |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080024222A1 (en) * | 2006-07-27 | 2008-01-31 | Analog Devices, Inc. | Voltage level shifting circuit, a differential input stage circuit, and a method for providing a level shifted differential signal to a differential input buffer circuit |
US7649409B1 (en) * | 2007-10-23 | 2010-01-19 | National Semiconductor Corporation | All-pass termination network with equalization and wide common-mode range |
US20140256276A1 (en) * | 2013-03-05 | 2014-09-11 | Qualcomm Incorporated | Unified front-end receiver interface for accommodating incoming signals via ac-coupling or dc-coupling |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB515843A (en) | 1938-06-13 | 1939-12-15 | Baird Television Ltd | Improvements in or relating to electrical or electro-mechanical control systems of the error correcting type |
DE3804331A1 (en) | 1988-02-12 | 1989-02-16 | Ant Nachrichtentech | Low-pass filter |
FR2653281B1 (en) | 1989-10-17 | 1994-06-10 | Renault | LINE INTERFACE FOR AN INFORMATION TRANSMISSION NETWORK. |
US6342815B1 (en) * | 2000-10-04 | 2002-01-29 | Trw Inc. | Manufacturable HBT power distributed amplifier for wideband telecommunications |
WO2013153653A1 (en) | 2012-04-12 | 2013-10-17 | 三菱電機株式会社 | Resolver device, motor control device, and motor control method |
-
2015
- 2015-05-21 DE DE102015209277.1A patent/DE102015209277A1/en not_active Withdrawn
-
2016
- 2016-04-08 US US15/574,940 patent/US10320359B2/en not_active Expired - Fee Related
- 2016-04-08 EP EP16715294.1A patent/EP3298689A1/en not_active Ceased
- 2016-04-08 WO PCT/EP2016/057693 patent/WO2016184605A1/en active Application Filing
- 2016-04-08 CN CN201680029003.5A patent/CN107580754A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080024222A1 (en) * | 2006-07-27 | 2008-01-31 | Analog Devices, Inc. | Voltage level shifting circuit, a differential input stage circuit, and a method for providing a level shifted differential signal to a differential input buffer circuit |
US7649409B1 (en) * | 2007-10-23 | 2010-01-19 | National Semiconductor Corporation | All-pass termination network with equalization and wide common-mode range |
US20140256276A1 (en) * | 2013-03-05 | 2014-09-11 | Qualcomm Incorporated | Unified front-end receiver interface for accommodating incoming signals via ac-coupling or dc-coupling |
Non-Patent Citations (1)
Title |
---|
See also references of WO2016184605A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2016184605A1 (en) | 2016-11-24 |
DE102015209277A1 (en) | 2016-11-24 |
US20180175818A1 (en) | 2018-06-21 |
CN107580754A (en) | 2018-01-12 |
US10320359B2 (en) | 2019-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3637114B1 (en) | High voltage system and method for monitoring insulating defects in a high voltage system | |
EP3024705B1 (en) | Switching module for separating components of a multiple voltage vehicle circuit | |
DE102006029120B4 (en) | Circuit arrangement for detecting the capacitance or a capacitance change of a capacitive circuit or component | |
DE102010010042A1 (en) | System and method for detecting insulation loss during operation of an AC motor | |
WO2014009207A1 (en) | Apparatus for diagnosing a circuit arrangement | |
EP3111284B1 (en) | Input circuit that can be made redundant, input circuit unit having at least one input circuit, and method for operating such an input circuit unit | |
EP3746747A1 (en) | Capacitive measuring system | |
WO2017025140A1 (en) | Field device coupling unit and system | |
WO2016184605A1 (en) | Signal processing device and control device | |
EP1867065A1 (en) | Electrical multiple-wire system for push-pull signal transmission with an attenuating or filtering element and data transmission bus | |
DE19527744A1 (en) | Input circuit for wheel rpm sensor used in e.g. ABS of motor vehicle | |
DE102015221848A1 (en) | Bus system and method for diagnosing a short circuit | |
DE102017213540A1 (en) | Capacitive proximity sensor and method of operating such | |
DE102021111734A1 (en) | Diagnosable circuit arrangement and method for diagnosing a circuit arrangement | |
DE102006048109B4 (en) | CAN control unit, CAN bus system and motor vehicle | |
DE69800107T2 (en) | Attenuation equalizer for transmission lines | |
EP2503669A2 (en) | Communication system with monitored deactivation and deactivation acceleration device | |
DE10238405A1 (en) | Evaluation circuit for resonant circuit sensors | |
WO2020035250A1 (en) | Transformer having a test circuit | |
DE102004010785B4 (en) | Configurable input amplifier for position measuring devices | |
DE10061025A1 (en) | Multi-position switch in motor vehicle has two contact elements that activate electrical resistances of different values in first positions, each bridged by contact element in second position | |
EP2515617B1 (en) | Electronic pre-switching device and method for operating at least one LED and/or at least one discharge lamp | |
DE102009025396B4 (en) | Device for acquiring and transmitting a measured value, series connection, system for acquiring and transmitting measured values and domestic appliance | |
EP2507807A1 (en) | Switch and circuit arrangement for evaluating at least two switching states of a switch | |
EP4405693A1 (en) | Measuring assembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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: 20171221 |
|
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 |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
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: 20181128 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ROBERT BOSCH GMBH |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: G05F 3/08 20060101ALI20200609BHEP Ipc: H03H 1/02 20060101AFI20200609BHEP Ipc: H03H 7/42 20060101ALI20200609BHEP |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20200724 |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
INTC | Intention to grant announced (deleted) | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20210131 |