EP0402359A1 - Schaltungsanordnung zur getakteten versorgung. - Google Patents
Schaltungsanordnung zur getakteten versorgung.Info
- Publication number
- EP0402359A1 EP0402359A1 EP19890900795 EP89900795A EP0402359A1 EP 0402359 A1 EP0402359 A1 EP 0402359A1 EP 19890900795 EP19890900795 EP 19890900795 EP 89900795 A EP89900795 A EP 89900795A EP 0402359 A1 EP0402359 A1 EP 0402359A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit
- circuit arrangement
- connection
- resistor
- signal
- 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.)
- Granted
Links
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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/32—Energising current supplied by semiconductor device
- H01H47/325—Energising current supplied by semiconductor device by switching regulator
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
- F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
- F02D2041/2075—Type of transistors or particular use thereof
Definitions
- the invention relates to a circuit arrangement for the clocked supply of an electromagnetic consumer with a control system which is acted upon by a control signal which represents the difference between the instantaneous signal at the consumer and a definable command signal.
- a circuit arrangement is known, for example, from US Pat. No. 4,452,210 and comprises a driver circuit for an injection valve of an internal combustion engine.
- the driver circuit when the injection valve is open, the excitation current is determined and a signal is derived therefrom.
- a control signal is generated from the difference between this instantaneous signal and a definable reference signal, which serves as the basis for a pulse width modulation signal.
- the excitation current for the injection valve is therefore controlled by influencing the pulse width of the excitation current signal, that is, pulse width modulated.
- a circuit unit which has a frequency / voltage converter with a downstream integrator. Interferences on the clock frequency can thus be effectively suppressed as a result of the integration, since the integration signal changes only insignificantly if there are additional interference pulses on the clock frequency.
- a Ko parator is preferably provided to form the frequency / voltage converter.
- a power switch assigned to the consumer and acting on it is advantageously provided, the control signal of which the circuit input unit can be supplied, and furthermore a trigger circuit is provided for controlling the circuit breaker, the hysteresis of which can be changed by the circuit unit.
- the trigger circuit is advantageously designed as a Schmitt trigger.
- a Schmitt trigger has a hysteresis, which is usually determined by appropriate wiring of the Schmitt trigger and can be changed if necessary by another wiring. By connecting the Schmitt trigger, the current hysteresis of the current regulator can therefore be adapted to different conditions.
- an additional control input is provided, to which a voltage for controlling the current hysteresis of the current regulator can be applied.
- a voltage for the Schmitt trigger set by a fixed circuit an adjustable voltage is therefore used in this embodiment.
- FIG. 1 shows a schematically highly simplified block diagram to illustrate the principle of the readjustment according to the invention
- FIG. 2 shows a preferred exemplary embodiment of a circuit unit according to the invention for readjusting the clock frequency
- Block diagram of a current regulator according to the invention shows an embodiment of a current regulator according to the invention.
- the exemplary embodiment is a current regulator circuit, in which a special circuit unit adjusts the clock frequency, with which a consumer (load) is supplied via a circuit breaker.
- the load can be an inductance, for example, such as an excitation coil for a fuel injection valve of an internal combustion engine.
- connection points A and B which is shown in FIG. 1 in a preferred exemplary embodiment and is schematically greatly simplified, is intended to be inserted in an embodiment of a current regulator according to the invention, shown in detail in FIG. 4, between points also labeled A, B there .
- the circuit unit comprises a frequency / voltage converter 10 connected to a connection A, which is followed by an integrator 20 which is followed by an output connection B.
- the input connection A and the output connection B correspond to the corresponding connections of the block diagram according to FIG. 1.
- a resistor R11 and a capacitor C11 are connected in series to the input connection A, which resistor has a resistor R13 and a resistor R12 and the cathode of a diode DU is connected.
- the each other connections of the resistor R12 or the diode DU are connected to ground (GND).
- the other end of resistor R13 is connected to the negative input of a comparator ICH and to a resistor R14, the other end of which is connected to a supply voltage (5 volts).
- the comparator ICH is designed in a so-called "open collector" version.
- the other positive input of the comparator ICH is connected to the supply voltage (5 volts) via a resistor R15 and to ground via a resistor R16.
- the output of the comparator ICH is fed back to the supply voltage via a resistor R17 and is also connected to a resistor R18, the other end of which is connected to a resistor R19 and a capacitor C12, the other connection of which is connected to ground.
- the other end of the resistor R 19 is connected to the negative input of an operational amplifier IC12, the output of which is connected to the output terminal B of the circuit unit.
- the negative input and the output of the operational amplifier IC12 are bridged via an integration capacitance C13.
- a resistor R110, which is connected to the supply voltage, and a resistor Rill, the other connection of which is connected to ground, are located at the positive input of the operational amplifier IC12.
- FIG. 3 of the drawing shows a schematic block diagram of a current regulator circuit according to the invention, which is shown in detail in FIG. 4 in a preferred embodiment.
- a set voltage U (set) is present at the input, which is proportional to the set current at an inductive load.
- the setpoint voltage is fed via a limiter to the positive input of a comparator, which is now at the comparator a voltage proportional to the nominal current I (nominal) is present, and at its negative input an averaged actual voltage quantity which is proportional to the averaged actual current I (actual).
- the output signal of the comparator is given to a Schmitt trigger that controls an electronic power switch S.
- An inductive load is driven by the circuit breaker S in time with the pulses emitted by the Schmitt trigger.
- the load is bridged by a diode D5.
- the other connection of the circuit breaker S is connected to a device for measuring the actual current, which in turn is connected to a negative supply voltage - U (Batt.).
- the signal emitted by the actual current measuring device is fed to a peak value rectifier which has a discharge time constant f 1 .
- the peak value rectifier therefore emits an averaged actual current signal I (ist) which, as already mentioned, is fed to the negative input of the comparator.
- the setpoint voltage U (setpoint) is connected in series with resistors R1, R2 and R3 in a voltage divider circuit with a resistor R4, the other connection of which to ground (GND) is connected to the positive input + of a comparator Kl.
- the anode of a diode D1 is also connected between the resistors R1 and R2, the cathode of which is connected to a stabilized reference voltage U (stab.).
- the other connection of the resistor R6 is connected to ground, the other connection of the resistor R7 to the negative input of the comparator Kl and to a capacitor Cl bridging the two inputs of the comparator. Furthermore, there is a capacitor C2 between the negative input - of the comparator Kl and ground.
- a line leads from the connection point of the resistors R2 and R3 to a resistor R8, the other connection of which is connected to a resistor R9 and the anode of a diode D2.
- the other connection of the resistor R9 is via a connection point B, which is already based on the
- the cathode of the diode D2 is connected to a resistor RIO, which in turn is connected to the stabilized supply voltage, and furthermore the connection of the diode D2 on the cathode side is via a connection point A, which has already been explained with reference to FIGS. 1 and 2, to the output of the Comparator Kl connected.
- the circuit unit for readjustment of the clock frequency explained with reference to FIGS. 1 and 2 is therefore connected with its connection points A, B to the corresponding connection Points A, B of the current controller according to the invention shown in Figure 4 connected.
- the output of the comparator Kl is connected to a connection of a resistor R11, the other connection of which is connected to the base of a transistor T1, the collector base connections of which are connected by a resistor R12 and the emitter connection of which leads to the negative input of the comparator Kl.
- resistor R14 Also connected to the output of the comparator or to connection point A is a resistor R14, the connection of which is connected to the gate connection of a field-effect power transistor T3.
- the source connection of the transistor T3 is connected to the anode of a diode D4, the cathode of which is connected to the gate connection, and further to the connection point between the resistor R12 and the collector of the transistor T1 and to a connection point of resistors R15, R16 .
- the other connections of the resistors R15, R16 are connected to each other and connected to the negative supply voltage - U (batt.).
- the drain connection of the transistor T3 is connected to a load inductance, the other connection of which is connected to the positive supply voltage + U (battery) and which is bridged by a diode D5, the anode of which is connected to the drain connection of the transistor T3 .
- the control connection B for the circuit unit shown in FIGS. 1 and 2 is connected directly to the stabilized voltage U (stab.) In the embodiment shown in FIG.
- the Schmitt trigger therefore works with a fixed hyteresis, which the resistance downstream of the connection point B is determined.
- connection point B If, on the other hand, the connection between the connection point B and the stabilized supply voltage U (stab.) Is broken, an adjustable control voltage can be applied to the connection point B, which then specifies the hysteresis of the Schmitt trigger and thus the current hysteresis of the entire current regulator in an adjustable manner .
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3805031 | 1988-02-18 | ||
DE3805031A DE3805031C2 (de) | 1988-02-18 | 1988-02-18 | Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0402359A1 true EP0402359A1 (de) | 1990-12-19 |
EP0402359B1 EP0402359B1 (de) | 1993-09-01 |
Family
ID=6347641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89900795A Expired - Lifetime EP0402359B1 (de) | 1988-02-18 | 1988-12-30 | Schaltungsanordnung zur getakteten versorgung |
Country Status (5)
Country | Link |
---|---|
US (1) | US5313153A (de) |
EP (1) | EP0402359B1 (de) |
JP (1) | JP2672164B2 (de) |
DE (2) | DE3805031C2 (de) |
WO (1) | WO1989007831A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5053911A (en) * | 1989-06-02 | 1991-10-01 | Motorola, Inc. | Solenoid closure detection |
DE4414609B4 (de) * | 1994-04-27 | 2005-12-22 | Robert Bosch Gmbh | Einrichtung zur Ansteuerung eines Verbrauchers |
DE4430867A1 (de) * | 1994-08-31 | 1996-03-07 | Licentia Gmbh | Schaltungsanordnung zur Regelung des elektromagnetischen Antriebes eines Schaltgerätes |
DE19620037A1 (de) * | 1996-05-17 | 1997-11-20 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Ansteuerung eines Magnetventils |
DE19644611C1 (de) * | 1996-10-26 | 1998-04-23 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Regelung eines Stroms |
DE29715925U1 (de) * | 1997-09-05 | 1997-10-23 | Festo Ag & Co | Schaltungsvorrichtung |
DE19963153B4 (de) * | 1999-12-24 | 2005-01-05 | Conti Temic Microelectronic Gmbh | Verfahren zum Betrieb eines Systems |
DE102005003686A1 (de) | 2005-01-26 | 2006-08-03 | Rohde & Schwarz Gmbh & Co. Kg | Anordnung zum Glätten des einem Verbraucher zugeführten Verbraucherstromes |
FR2971102B1 (fr) * | 2011-02-01 | 2019-09-06 | Safran Landing Systems | Procede de limitation d'un courant fourni par une source d'alimentation en courant continu. |
CN204696038U (zh) * | 2012-09-21 | 2015-10-07 | 西门子公司 | 稳压电源组件和包括稳压电源组件的电气开关 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3796942A (en) * | 1973-01-02 | 1974-03-12 | Texas Instruments Inc | Integrated circuit frequency to voltage converter |
DD106243A1 (de) * | 1973-07-19 | 1974-06-05 | ||
US3973545A (en) * | 1975-01-23 | 1976-08-10 | Gte Laboratories Incorporated | Contactless ignition system utilizing a saturable core transformer |
DE2833343A1 (de) * | 1978-07-29 | 1980-02-14 | Bosch Gmbh Robert | Zuendanlage fuer eine brennkraftmaschine |
JPS5948306B2 (ja) * | 1980-05-23 | 1984-11-26 | 株式会社デンソー | 内燃機関用無接点点火装置 |
JPS57121703A (en) * | 1981-01-22 | 1982-07-29 | Nippon Denso Co Ltd | Driving circuit of electromagnetic operating device |
US4357572A (en) * | 1981-03-26 | 1982-11-02 | Bell Telephone Laboratories, Incorporated | Current flare out limit control for PWM converter |
JPS57157878A (en) * | 1981-03-26 | 1982-09-29 | Aisin Seiki Co Ltd | System of driving solenoid-operated proportional flow control valve |
JPS5851233A (ja) * | 1981-09-21 | 1983-03-25 | Hitachi Ltd | 燃料噴射弁駆動回路 |
DE3204234C2 (de) * | 1981-10-13 | 1985-08-29 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Schaltungsanordnung zur Steuerung eines Relais |
DE3233536A1 (de) * | 1982-09-10 | 1984-04-05 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum getakteten regeln eines eine spule durchfliessenden stromes |
US4503480A (en) * | 1983-02-17 | 1985-03-05 | Ncr Corporation | Voltage compensating driver circuit |
DE3307683C1 (de) * | 1983-03-04 | 1984-07-26 | Klöckner, Wolfgang, Dr., 8033 Krailling | Verfahren zum Aktivieren einer elektromagnetisch arbeitenden Stelleinrichtung sowie Vorrichtung zum Durchfuehren des Verfahrens |
DE3320110C2 (de) * | 1983-06-03 | 1985-03-28 | Mannesmann Rexroth GmbH, 8770 Lohr | Schaltung zum Betrieb eines Magnetregelventils |
USRE33285E (en) * | 1984-06-13 | 1990-07-31 | Touch controlled switch for a lamp or the like | |
DE3824526A1 (de) * | 1988-07-20 | 1990-01-25 | Vdo Schindling | Schaltungsanordnung zur regelung eines pulsierenden stroms |
KR950003338B1 (ko) * | 1989-05-15 | 1995-04-10 | 미쓰비시덴키 가부시키가이샤 | 내연기관 점화장치 |
JPH0826841B2 (ja) * | 1990-04-19 | 1996-03-21 | 三菱電機株式会社 | 内燃機関点火装置 |
-
1988
- 1988-02-18 DE DE3805031A patent/DE3805031C2/de not_active Expired - Lifetime
- 1988-12-30 JP JP1500655A patent/JP2672164B2/ja not_active Expired - Lifetime
- 1988-12-30 EP EP89900795A patent/EP0402359B1/de not_active Expired - Lifetime
- 1988-12-30 US US07/566,366 patent/US5313153A/en not_active Expired - Lifetime
- 1988-12-30 DE DE89900795T patent/DE3883784D1/de not_active Expired - Lifetime
- 1988-12-30 WO PCT/DE1988/000786 patent/WO1989007831A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO8907831A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2672164B2 (ja) | 1997-11-05 |
WO1989007831A1 (en) | 1989-08-24 |
JPH03502857A (ja) | 1991-06-27 |
DE3883784D1 (de) | 1993-10-07 |
EP0402359B1 (de) | 1993-09-01 |
DE3805031C2 (de) | 1997-04-17 |
DE3805031A1 (de) | 1989-08-31 |
US5313153A (en) | 1994-05-17 |
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