WO2020127894A1 - Ensemble formant circuit servant à transformer un signal d'entrée différentiel en un signal de sortie rectangulaire - Google Patents

Ensemble formant circuit servant à transformer un signal d'entrée différentiel en un signal de sortie rectangulaire Download PDF

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Publication number
WO2020127894A1
WO2020127894A1 PCT/EP2019/086558 EP2019086558W WO2020127894A1 WO 2020127894 A1 WO2020127894 A1 WO 2020127894A1 EP 2019086558 W EP2019086558 W EP 2019086558W WO 2020127894 A1 WO2020127894 A1 WO 2020127894A1
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WO
WIPO (PCT)
Prior art keywords
input
output
signal
connection
resistance element
Prior art date
Application number
PCT/EP2019/086558
Other languages
German (de)
English (en)
Inventor
Wolfgang Fischer
Tobias Kirchner
Jonathan Mueller
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2020127894A1 publication Critical patent/WO2020127894A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • 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
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
    • H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
    • H02P6/182—Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings

Definitions

  • Circuit arrangement for converting a differential input signal into a rectangular output signal
  • the present invention relates to a circuit arrangement for converting a differential input signal into a rectangular output signal.
  • Internal combustion engines are essential input variables for many functions of the electronic engine control. To determine them, a body rotating with the crankshaft of the internal combustion engine can be used in the same
  • Markings can be provided at angular distances.
  • the passing of a mark as a result of the crankshaft rotation can be detected by a sensor and passed on to an electronic evaluation system as an electrical signal.
  • This electronics determines the respective stored signal for the marking or measures one for the respective angular position of the crankshaft
  • Time difference between two markings and, based on the known angular distance between two markings, can determine the angular velocity and the speed from this.
  • motor vehicles especially ATV (All Terrain Vehicle)
  • ATV All Terrain Vehicle
  • Markings are provided, for example, by teeth of a metallic gear wheel, a so-called sensor wheel, which cause a change in the magnetic field due to their movement in the sensor.
  • a gap of a few teeth can serve as a reference mark for the detection of the absolute position. While 60-2 teeth are mostly used in cars (even distribution of 60 teeth, two being left out), encoder wheels with 36-2, 24-2 or 12-3 teeth are also used for motorcycles or motorcycles. With this indirect principle of
  • the resolution of the rotational speed signal or the absolute detection of the angular position is determined by the number of teeth and by reliable detection of the reference mark.
  • a use of the electrical output variables of an electrical machine (generator) driven via the crankshaft is used, for example, in DE 10 2014 206 173 A1 for determining the speed.
  • one or more signals of the electrical machine are evaluated, each of which has one or more values, each of which occurs at least once per revolution of the rotor of the electrical machine.
  • the speed is calculated by calculating a time difference between two occurrences of values.
  • DE 10 2016 221 459 A1 discloses the use of such electrical output variables for determining an angular position of a crankshaft of an internal combustion engine.
  • a crankshaft of an internal combustion engine for this purpose, a crankshaft of an internal combustion engine.
  • the angular position of the crankshaft is calculated from the angular position and an angular offset.
  • the circuit arrangement has a first input connection and a second input connection for feeding the differential input signal into an input signal path, a first potential connection and a second potential connection for connection to a supply voltage, and an output connection for outputting the rectangular output signal.
  • a source can be connected to the input connections that generates the differential input signal, for example a generator or a corresponding electrical machine.
  • a differential input signal is understood to be a signal consisting of two antiphase signal parts, each of which is present at one of the inputs. In the case of a generator, a differential signal is present in particular at both ends of a stator phase winding.
  • a computing unit for example, can be connected to the output connection
  • a DC voltage source e.g. a battery, are connected to supply the circuit arrangement or its components with electrical energy.
  • the circuit arrangement has a signal evaluation unit with a first input, a second input and an output, which is designed to show at its output whether an input signal has a positive or negative potential difference between the first input and the second input. In particular, this can be done by means of a positive and negative output signal level, in particular zero crossings of the input signal being output at the output as signal edges.
  • a signal evaluation unit can in particular be a Amplifier circuit with a first input (in particular non-inverting input), a second input (in particular inverting input) and an output.
  • the inputs and outputs of the amplifier circuit are each connected in a signal path to the corresponding inputs and outputs of the signal evaluation unit.
  • the amplifier circuit can in particular have an operational amplifier, a comparator, a differential amplifier or also corresponding discrete circuits with comparable functionality.
  • the first input is via the input signal path
  • Signal evaluation unit connected to the first input connection, the second input of the signal evaluation unit to the second
  • the signal evaluation unit expediently supplies the differential input signal and converts it into the rectangular output signal, which is forwarded or made available to the output connection.
  • the circuit arrangement is set up to convert a differential, analog input signal, in particular a symmetrical, periodic signal, into a rectangular, digital output signal, in particular with two discrete levels.
  • the circuit arrangement represents the zero crossings of the input signal as edges of the output signal, in particular as rising or falling edges in the output signal.
  • the current level of the output signal expediently indicates whether there is currently a positive or a negative potential difference between the input connections.
  • a positive input signal or a positive input voltage ie potential at the first input connection higher than at the second
  • the output is switched in particular when the sign of the difference in the inputs changes, that is to say there is a zero crossing in the differential input signal.
  • an electrical signal from a generator or a corresponding electrical machine can be used as the input signal, in particular a voltage or current signal from such an electrical machine, advantageously a phase voltage or a phase current of a phase of the electrical machine.
  • Circuit arrangement an analog electrical signal of the electrical
  • Machine are digitized, for example for evaluating or monitoring the electrical machine or components connected to it.
  • a phase of an electrical machine or its two ends is therefore advantageously connected to the first input connection and the second input connection.
  • the circuit arrangement is particularly suitable for use in a vehicle, in particular for an electrical machine coupled to a crankshaft of an internal combustion engine of the vehicle, which is e.g. as
  • Alternator can be formed. Electrical signals of the electrical machine, in particular phase currents or phase voltages, have zero crossings, which occur at least once per revolution of the rotor and thus per revolution of the coupled internal combustion engine. An evaluation of these zero crossings, in particular the time intervals between these zero crossings, expediently enables conclusions to be drawn about the speed of the internal combustion engine.
  • the circuit arrangement can thus advantageously be supplied with a phase current or a phase voltage of such an electrical machine as a differential input signal, so that zero crossings of this input signal in flanks of the rectangular output signal
  • a phase of an electrical machine of a vehicle is therefore advantageously connected to the first and second input connection.
  • Is at the first and second potential connection advantageously a battery connected, preferably one
  • the circuit arrangement thus provides in particular a circuit
  • Circuit arrangement in particular extracting information from the electrical signals of such an electrical machine and providing them in a suitable form for digital evaluation in a computing unit, for example in the form of a control unit or
  • the circuit arrangement is thus particularly suitable for methods for determining a rotational speed of a crankshaft
  • Signal processing unit for filtering the input signal is in the
  • the signal processing unit functions in particular as a filter, for example as a low-pass filter. With the aid of the signal processing unit, interference in particular can thus be removed from the input signal in order to evaluate the
  • the signal processing unit has, for example, two resistance elements and a capacitor.
  • the circuit arrangement preferably also has one
  • Signal conditioning unit for conditioning the input signal.
  • This signal processing unit is preferably the signal processing unit in the
  • the signal processing unit can in particular process the input signal to enable processing in the subsequent circuit parts.
  • the input signal can be provided with a voltage offset by the signal processing unit in order to follow it into an optimal operating point Shift circuit parts.
  • the signal processing unit has, for example, four resistance elements and three capacitors.
  • the circuit arrangement preferably also has a limiting unit for limiting the voltage and the current of the input signal.
  • This limiting unit is preferably connected upstream of the signal processing unit in the input signal path. Depending on the voltage amplitude or power of the input signal, its voltage and current can be adjusted using the
  • Limiting unit are limited at the beginning, so as not to overload or damage the subsequent circuit parts.
  • Limiting unit has, for example, two resistance elements and two diodes.
  • the signal processing unit is
  • the signal processing unit is advantageously connected downstream of the signal processing unit.
  • Figure 1 shows schematically a preferred embodiment of a
  • Circuit arrangement according to the invention as a blockidagram.
  • Figure 2 shows schematically a preferred embodiment of a
  • FIG. 3 shows schematically a preferred embodiment of a
  • Rectifier circuit as a circuit diagram.
  • Figure 4 shows schematically a preferred embodiment of a
  • Circuit arrangement according to the invention as a circuit diagram.
  • Circuit arrangement 100 is shown schematically as a block diagram.
  • the individual function blocks shown in FIG. 1 represent different circuit parts of the circuit arrangement 100.
  • the circuit arrangement 100 has a first potential connection V + and a second potential connection V- for connection to a
  • a first function block 110 is for supply to the subsequent ones
  • function block 110 can include, for example, support capacitances, voltage regulators, voltage or current limiters (in particular resistance).
  • the circuit arrangement 100 comprises a first input connection In + and a second input connection In- for feeding a differential input signal into an input signal path, which is one of the function blocks 120, 130, 140, 150 and 160 rectangular output signal is converted, which at a
  • Output connector Out is output.
  • Function block 120 is provided as a limiting unit for voltage and / or current limitation. Depending on the voltage amplitude or power of the input signal, it may be necessary to limit its voltage and current on the input side with the aid of function block 120 in order not to overload or damage the subsequent circuit parts.
  • Function block 130 is provided as a signal processing unit. It may be necessary to process a limited input signal to enable processing in the subsequent steps.
  • the function block 130 can provide the input signal with a voltage offset for this purpose in order to shift it into an optimal operating point of subsequent blocks.
  • Function block 140 is provided as a signal processing unit. To enable usable evaluation of the signal, interference can be removed from the input signal in function block 140 using a filter, e.g. using a low pass filter.
  • Function block 150 is designed as a signal evaluation unit.
  • the circuit arrangement 100 is provided to show at its output whether the input signal has a positive or negative potential difference.
  • the input signal is evaluated or converted in the function block 150 in such a way that zero crossings of the input voltage are output at the output as (steepest possible) signal edges, so that a rectangular output signal arises from any input signal, which is the sign of the input voltage by its Level and the zero crossings of the input voltage as rising or falling edges.
  • a positive sign of the input voltage is shown in particular as a high level and a negative sign in particular as a low level.
  • 150 in particular evaluated which sign the input voltage has and generates a corresponding signal for the output stage.
  • the output signal can be amplified accordingly depending on the required output voltage and output power and can be output at the output of the circuit arrangement 100.
  • Figure 2 shows schematically a preferred embodiment of a
  • Circuit arrangement 100 as a circuit diagram.
  • An amplifier circuit here having an operational amplifier OPV and a resistance element R10 and a capacitor C6 represents the signal evaluation unit or the function block 150
  • Input signal path is a first input of the operational amplifier OPV connected to the first input connection ln + and a second input of the operational amplifier OPV is connected to the second input connection In-.
  • a first supply voltage connection of the operational amplifier OPV is connected to the first potential connection V + and a second one
  • Resistor element R10 and the first capacitor C6 connected to the first input of the operational amplifier OPV or fed back.
  • a resistance element R1 is the first potential connection V +
  • Function block 110 for current limitation and voltage stabilization for the voltage supply.
  • the capacitor C5 is in parallel with the
  • the delimitation unit or the function block 120 has two
  • Input connections and two output connections in the input signal path is realized in the form of two resistance elements R2 and R3 and two diodes D1 and D2.
  • the resistance element R2 is between a first input connection and a first output connection
  • An anode of diode D1 is with the first
  • Resistor element R2 is connected and a cathode of this diode D1 to the second potential connection V-. Accordingly, an anode of the diode D2 is connected to the second resistance element R3 and the cathode of this diode D2 is connected to the second potential connection V-. Diodes D1 and D2 limit positive input voltages to theirs
  • the dimensioning of the resistance elements R2 and R3 can take place depending on the expected maximum input voltage and the associated power loss that may occur at the diodes D1 and D2.
  • resistance elements R2 and R3 and the diodes D1 and D2 are each dimensioned identically.
  • the signal processing unit or the function block 130 has two
  • Input connections and two output connections in the input signal path and is realized in the form of with four resistance elements R4, R5, R6, R7 and three capacitors C1, C2, C3.
  • the resistance elements R6 and R7 are connected as voltage dividers in parallel between the first potential connection V + and the second potential connection V-.
  • the capacitor is C1 switched between a first input connection and a first output connection of the signal processing unit and on the input side with the
  • the capacitor C2 is between a second input terminal and a second one
  • the first capacitor C1 is connected to the resistance element R6 via the resistance element R4 and the capacitor C2 is connected to the resistance element R7 via the resistance element R5.
  • the capacitor C3 is also connected to a point between the resistance elements R6 and R7 and to the second potential connection V-.
  • the capacitors C1, C2, C3 and the resistors R4, R5, R6, R7 are used to provide the input signal limited on the input side with an offset voltage.
  • This offset voltage is selected in particular in this case via the voltage divider R6, R7 so that the differential input signal to be evaluated lies in a suitable range for the subsequent operational amplifier OPV.
  • the capacitor C3 serves to stabilize the offset voltage.
  • the capacitors C1 and C2 pull the limited input voltages to the level of the offset voltage.
  • the dimensioning of these two capacitors C1 and C2 is chosen so large that even for low ones
  • the resistance elements R4 and R5 serve the predetermined
  • the signal processing unit or the function block 140 has two
  • Input connections and two output connections in the input signal path is in the form of two resistance elements R8 and R9 and one
  • Capacitor C4 realized.
  • the resistance element R8 is between a first input connection and a first output connection
  • the resistance element R9 is between a second
  • the capacitor C4 is between the two output terminals of the
  • this capacitor is thus connected upstream of the operational amplifier OPV and expediently connected in parallel to the input connections of the operational amplifier.
  • the differential, offset-shifted input signal is filtered via the resistors R8, R9 and the capacitor C4.
  • This filter behaves in particular like a low-pass filter and is expediently used for high-frequency noise on the input signal, which is caused by
  • the dimensioning takes place in such a way that the highest expected frequency of the input signals is not yet in the
  • the filter's damping range falls.
  • the resistance elements R8 and R9 are dimensioned identically.
  • the operational amplifier OPV indicates at its output by a voltage at the level of its positive supply voltage that the difference in its input signals is positive, and by a voltage at the level of its negative supply voltage that the difference in its input signals is negative. This means that the input is switched whenever the sign of the difference in the input signals changes, i.e. there is a zero crossing in the differential input signal.
  • the output of the operational amplifier OPV is fed back via the resistor R10 and the capacitor C6 to the first input of the operational amplifier OPV. As a result, each time the output is switched, a short pulse is given to the first input, and thus its
  • Feedback thus suppresses noise influences in the area of the zero crossings of the differential input signal and serves as a further security in addition to the low-pass filter.
  • the dimension of the resistance element R10 and the capacitor C6 in particular selects the pulse length in such a way that the pulse is safely over before a new zero crossing of the differential voltage is also present at the inputs for the maximum frequency to be expected.
  • the capacitor C5 serves to stabilize the supply voltage of the operational amplifier OPV and should be placed as close as possible. Suitable dimensions can be proposed, for example, in data sheets of the selected operational amplifier OPV.
  • the first supply voltage connection of the operational amplifier OPV can also be connected via a resistance element R11 to the output of the
  • Operational amplifier OPV connected.
  • the output signal Out can be current limited via this resistance element R11 to subsequent ones To protect circuits.
  • this resistance element R11 is used in particular to deliver a defined signal state at the output for high level when using an operational amplifier with an open collector output.
  • a Zener diode with a corresponding Zener voltage can be connected to limit the voltage between the output Out and the potential connection V-, the anode being connected to the
  • Resistance elements R6 and R7 is generated, the resistance element R7 can be replaced by a Zener diode with the desired Zener voltage, the anode with the potential connection V- and the cathode with
  • Resistor element R4 or R6 is connected.
  • the resistance element R6 acts as a current limiter to protect the Zener diode and as a setting parameter for its operating point and no longer as part of a voltage divider.
  • the circuit arrangement 100 is suitable for use in a vehicle in order to convert an electrical signal from an electrical machine or a generator of the vehicle as a differential, analog input signal into a digital output signal.
  • a phase current or a phase voltage of a phase of such an electrical machine can be used as an input signal. Since such an electrical machine is particularly coupled to an internal combustion engine of the vehicle, the speed of the internal combustion engine can be inferred from characteristic features of this input signal, in particular from the zero crossings or from their time intervals.
  • the rectangular output signal of the circuit arrangement 100 can therefore, for example, be one Control unit of the vehicle can be fed to a determination of the speed.
  • FIG. 3 shows a preferred embodiment of a rectifier circuit 200, which can preferably be used as part of a circuit arrangement 100 according to the invention, in particular when used in a vehicle.
  • Figure 4 shows such a preferred embodiment of an inventive
  • Circuit arrangement 100 in such use in a vehicle.
  • An electrical machine of the vehicle is designated 210 and exemplified as a single-phase electrical machine, but can be seen in FIG.
  • the electrical machine 210 is as one
  • the electric machine 210 is provided for charging a battery that
  • This vehicle battery B +, B- is also connected to the potential connections V + and V- of the circuit arrangement 100 (FIG. 4) as a supply voltage
  • Phase winding of the electrical machine 210 connected the phase voltage of this phase winding is supplied to the circuit arrangement 100 as a differential input signal.
  • the circuit arrangement 100 according to the present invention is particularly advantageously suitable for being used in combination with a
  • Rectifier circuit to be used as shown schematically in Figure 3 and designated 200.
  • Such a rectifier circuit 200 is in the patent application filed on the same day "Circuit arrangement and rectifier circuit for one electrical machine "of the applicant, to which reference is made with regard to details of such a rectifier circuit and the content of which is hereby fully made the content of this application.
  • the rectifier circuit 200 is provided to rectify an AC voltage generated by the electrical machine 210 and provided at outputs Vgen + and Vgen- into a DC voltage which can be used to charge the vehicle battery.
  • the rectifier circuit 200 has one
  • Bridge rectifier 220 consisting of highside switches 200a, 200b and low-side switches 200c, 200d.
  • switches 200a, 200b, 200c, 200d are each designed according to a particularly advantageous embodiment as a circuit arrangement in which a switching transistor M201 is controlled with the aid of a control circuit such that this switching transistor M201 in a first direction from a first to a second of its connections conducts, in particular from a source connection to a drain connection in the case of a MOSFET, and blocks in an opposite direction from the second to the first connection.
  • the switches 200a, 200b, 200c, 200d expediently make it possible to operate the respective switching transistor analogously to a diode and to emulate the behavior of a diode with the respective switching transistor, which, however, has significantly lower power losses than a diode.
  • the switches 200a, 200b, 200c, 200d can be used in the rectifier circuit 200 instead of diodes, as a result of which power losses and a need for cooling elements can be reduced.
  • the respective control circuit for controlling the corresponding switching transistor M201 each comprise a large number of components, in particular a diode D201,
  • switches 200a, 200b, 200c, 200d reference is made to the applicant's parallel patent application mentioned here.
  • the rectifier circuit 200 has a short-circuit unit 230, which can control the switches 200a, 200b, 200c and 200d in such a way that a short-circuit of the phases of the electrical machine 210 is generated.
  • a short circuit can e.g. triggered by an external control device, which can send a control signal or short circuit signal KS to the rectifier circuit 200, for example at a signal input. It is also conceivable that such a short circuit signal by an internal
  • Monitoring unit is triggered.
  • Such a short circuit can be used so that in the case of a fully charged battery, it cannot be charged further and thus not overcharged.
  • Control unit hit for example because the communication line between the short-circuit unit and the control unit is defective, is also used
  • the fault protection unit 240 monitors the output voltage of the
  • Rectifier circuit 200 and thus in particular the battery voltage.
  • the error protection unit expediently triggers a short circuit in the electrical machine.
  • the fault protection unit can also end the short circuit again if safe operation is ensured again.
  • a control signal Off1 can be transmitted from the short-circuit unit 230 to the switch 200a in order to generate such a short circuit and a control signal Off2 to the switch 200b in order to permanently block these highside switches.
  • a control signal On3 can be transmitted from the short-circuit unit 230 to generate a short-circuit to the switch 200c and a control signal On4 to the switch 200d in order to switch these low-side switches permanently on. Thanks to the fully conductive lowside Switches 200c, 200d expediently short-circuit the phase connections of the electrical machine 210 and the blocking highside switches 200a, 200b expediently decouple the electrical machine 210 from the battery.
  • the short-circuit unit 230 and the error protection unit 240 expediently comprise a large number of components, in particular transistors, e.g. MOSFETs, M205, M206, M207, M208, resistance elements R225, R226, R227, R228, R229, a diode R205 and a capacitor C229. Also with regard to the purpose of these different components and other details of the
  • Short-circuit unit 230 and error protection unit 240 are referred to the applicant's parallel patent application mentioned here.
  • a preferred embodiment of a circuit arrangement according to the present invention in combination with an embodiment of a rectifier circuit can be used to implement an overall circuit by which an electrical machine in a vehicle rectify the generated phase voltage and use it to supply a battery or an electrical system, and also to use the phase voltage or the phase current of the electrical machine simultaneously to determine the speed of a crankshaft of an internal combustion engine coupled to the electrical machine.
  • the circuit arrangement and the rectifier circuit can be implemented as a common structural unit, e.g. as a common integrated circuit (IC, ASIC), which in particular saves component costs and board space.
  • IC integrated circuit

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rectifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

L'invention concerne un ensemble formant circuit (100) servant à transformer un signal d'entrée différentiel en un signal de sortie rectangulaire. L'ensemble formant circuit comporte une première borne d'entrée (In+) et une deuxième borne d'entrée (In-) servant à injecter le signal d'entrée différentiel dans un chemin de signal d'entrée, une première borne de potentiel (V+) et une deuxième borne de potentiel (V-) servant à la liaison à une tension d'alimentation, une borne de sortie (Out) servant à fournir le signal de sortie rectangulaire, une unité d'évaluation de signaux (150) pourvue d'une première entrée, d'une deuxième entrée et d'une sortie, qui est mise au point pour afficher sur sa sortie si un signal d'entrée entre la première entrée et la deuxième entrée présente une différence de potentiel positive ou négative. La première entrée de l'unité d'évaluation de signaux (150) est reliée à la première borne d'entrée (In+) et la deuxième entrée de l'unité d'évaluation de signaux (150) est reliée à la deuxième borne d'entrée (In-) par l'intermédiaire du chemin de signal d'entrée. La sortie de l'unité d'évaluation de signaux (150) est reliée à la borne de sortie (Out).
PCT/EP2019/086558 2018-12-21 2019-12-20 Ensemble formant circuit servant à transformer un signal d'entrée différentiel en un signal de sortie rectangulaire WO2020127894A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018222835.3 2018-12-21
DE102018222835.3A DE102018222835A1 (de) 2018-12-21 2018-12-21 Schaltungsanordnung zum Wandeln eines differentiellen Eingangssignals in ein rechteckförmiges Ausgangssignal

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WO2020127894A1 true WO2020127894A1 (fr) 2020-06-25

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976954A (en) * 1974-08-06 1976-08-24 International Telephone And Telegraph Corporation Anti-skid brake control system and components thereof
US5231351A (en) * 1990-09-22 1993-07-27 U.S. Philips Corporation Magnetoresistive speed sensor processing circuit utilizing a symmetrical hysteresis signal
US5510706A (en) * 1994-02-22 1996-04-23 Delco Electronics Corporation Differential to single-ended conversion circuit for a magnetic wheel speed sensor
EP0973258A2 (fr) * 1998-07-17 2000-01-19 Ford Motor Company Limited Discrimination de dépassement de seuil pour signaux oscillatoires
KR20100033907A (ko) * 2008-09-22 2010-03-31 주식회사 트루윈 인덕티브형 휠스피드센서
DE102014206173A1 (de) 2014-04-01 2015-10-01 Robert Bosch Gmbh Verfahren zur Bestimmung einer Drehzahl
DE102016221459A1 (de) 2016-11-02 2018-05-03 Robert Bosch Gmbh Verfahren zur Bestimmung einer Drehwinkelposition einer Kurbelwelle einer Brennkraftmaschine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137758A1 (de) * 1991-11-16 1993-05-19 Bosch Gmbh Robert Verfahren und vorrichtung zur polaritaetspruefung von elektrolytkondensatoren

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976954A (en) * 1974-08-06 1976-08-24 International Telephone And Telegraph Corporation Anti-skid brake control system and components thereof
US5231351A (en) * 1990-09-22 1993-07-27 U.S. Philips Corporation Magnetoresistive speed sensor processing circuit utilizing a symmetrical hysteresis signal
US5510706A (en) * 1994-02-22 1996-04-23 Delco Electronics Corporation Differential to single-ended conversion circuit for a magnetic wheel speed sensor
EP0973258A2 (fr) * 1998-07-17 2000-01-19 Ford Motor Company Limited Discrimination de dépassement de seuil pour signaux oscillatoires
KR20100033907A (ko) * 2008-09-22 2010-03-31 주식회사 트루윈 인덕티브형 휠스피드센서
DE102014206173A1 (de) 2014-04-01 2015-10-01 Robert Bosch Gmbh Verfahren zur Bestimmung einer Drehzahl
DE102016221459A1 (de) 2016-11-02 2018-05-03 Robert Bosch Gmbh Verfahren zur Bestimmung einer Drehwinkelposition einer Kurbelwelle einer Brennkraftmaschine

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