EP2387046B1 - Leitstungstreiber und ausfallsicherer Schaltkreis für ein Gasventil - Google Patents

Leitstungstreiber und ausfallsicherer Schaltkreis für ein Gasventil Download PDF

Info

Publication number
EP2387046B1
EP2387046B1 EP10004949.3A EP10004949A EP2387046B1 EP 2387046 B1 EP2387046 B1 EP 2387046B1 EP 10004949 A EP10004949 A EP 10004949A EP 2387046 B1 EP2387046 B1 EP 2387046B1
Authority
EP
European Patent Office
Prior art keywords
diode
transistor
fail safe
power driver
safe circuit
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.)
Active
Application number
EP10004949.3A
Other languages
English (en)
French (fr)
Other versions
EP2387046A1 (de
Inventor
Daniele Galeazzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Garrett Motion SARL
Original Assignee
Honeywell Technologies SARL
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 Honeywell Technologies SARL filed Critical Honeywell Technologies SARL
Priority to EP10004949.3A priority Critical patent/EP2387046B1/de
Publication of EP2387046A1 publication Critical patent/EP2387046A1/de
Application granted granted Critical
Publication of EP2387046B1 publication Critical patent/EP2387046B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844—Monitoring or fail-safe circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/05001—Control or safety devices in gaseous or liquid fuel supply lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/04—Fail safe for electrical power failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • 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
    • H01H47/002—Monitoring or fail-safe circuits

Definitions

  • the invention relates to a power driver and fail safe circuit for a gas valve.
  • An electric or electronic power driver circuit for a gas valve is connected by input contacts of the same to an electrical power source providing an electrical input power to the power driver circuit. Further on, such a power driver circuit for a gas valve is connected by output contacts of the same to a coil of the gas valve to be operated.
  • the power driver circuit for a gas valve is used to open or close the gas valve.
  • the power driver circuit opens or closes a gas valve in such a way that the gas valve is opened when the coil of the gas valve being connected to output contacts of the power driver circuit is energized with a defined electrical output power of the power driver circuit.
  • the gas valve is closed when said coil of the gas valve is not energized with the defined electrical output power of the power driver circuit.
  • US 2005/0218838 A1 discloses a power driver circuit comprising: input contacts to which a power source providing a defined DC input power level for the circuit is connectable; output contacts to a which load is connectable; an inductance coil, a transistor and a resistor being connected in such a way that a switch operated by a switch controller comprising the transistor in connected in series between the inductance coil and the resistor; an input capacitor being connected between the input contacts; an output capacitor being connected between the output contacts; a diode being connected in series to the parallel connection of the output capacitor and the coil of the gas valve, wherein the anode of said diode is connected to said output capacitor and to one of the output contacts, and wherein the cathode of said diode is connected to the inductance coil and to one of the input contacts; a micro controller; and a peak current detector.
  • the power driver and fail safe circuit according to the present invention is defined in claim 1.
  • the novel electric or electronic power driver and fail safe circuit ensures that a gas valve becomes not opened by a failure of one or more components of the power driver and fail safe circuit.
  • the power driver and fail safe circuit does not need an extra electrical power.
  • the novel electric or electronic power driver and fail safe circuit has a low power consumption.
  • the power driver and fail safe circuit provides a defined DC output power level being fully controlled by the power driver and fail safe circuit and being independent from the impedance of the coil of the gas valve.
  • the invention relates to an electric or electronic power driver and fail safe circuit for a gas valve.
  • a power driver and fail safe circuit is connected to an electrical power source providing an electrical input power to the power driver and fail safe circuit. Further on, such a power driver and fail safe circuit is connected by to a coil of a gas valve to be operated.
  • the power driver and fail safe circuit for a gas valve is used to open or close the gas valve.
  • the power driver circuit and fail safe opens or closes the gas valve in such a way that the gas valve is opened when the coil of the gas valve being connected to output contacts of the power driver and fail safe circuit is energized with a defined electrical output power of the power driver and fail safe circuit.
  • the gas valve is closed when said coil of the gas valve is not energized with the defined electrical output power of the power driver and fail safe circuit.
  • Figure 1 shows a fist preferred embodiment of a power driver and fail safe circuit 10 for a gas valve.
  • the power driver and fail safe circuit 10 has input contacts 11, 12 to which a power source (not shown) is connected.
  • the power source provides a DC input power V IN with a defined DC input power level to the power driver and fail safe circuit 10.
  • the input contact 11 corresponds to positive input contact and the input contact 12 corresponds to the negative input contact which is also often called ground contact.
  • the power driver and fail safe circuit 10 has further output contacts 13, 14 to which a coil 15 of a gas valve is connected. The gas valve is opened when said coil 15 being connected to output contacts 13, 14 of the power driver and fail safe circuit 10 is energized with a DC output power V OUT having a defined DC output power level. The gas valve is closed when said coil 15 is not energized with the defined DC output power level of the circuit 10.
  • the defined DC output power level V OUT provided by the circuit 10 is fully controlled by the same and is independent from the impedance of the coil 15 of the gas valve.
  • the power driver and fail safe circuit 10 comprises an inductance coil 16, a transistor 17 and a resistor 18 being connected in series to each other. These elements 16, 17 and 18 are connected in series in such a way that said inductance coil 16 is connected to the drain 19 of the transistor 17 and that said resistor 18 is connected to the source 20 of the transistor 17.
  • a first contact 21 of said inductance coil 16 is connected to the first input contact 11 of the power driver and fail safe circuit 10, preferably through a fuse 22 and a diode 23.
  • a second contact 24 of said inductance coil 16 is connected to the drain 19 of the transistor 17.
  • a first contact 25 of the resistor 18 is connected to the source 20 of the transistor 17.
  • a second contact 26 of the resistor 18 is connected to a second input contact 12 of the power driver and fail safe circuit 10 and thereby to input contact or ground contact.
  • the power driver and fail safe circuit 10 further comprises an input capacitor 27 being connected in parallel to the series connection of said inductance coil 16, said transistor 17 and said resistor 18. As shown in figure 1 , the input capacitor 27 is connected to the first contact 21 of said inductance coil 16 and to the second contact 26 of the resistor 18.
  • the power driver and fail safe circuit 10 further comprises an output capacitor 28 being connected between the output contacts 13, 14 of the power driver and fail safe circuit 10 and thereby in parallel to the coil 15 of the gas valve.
  • the power driver and fail safe circuit 10 further comprises a diode 29, being connected in series to the parallel connection of the output capacitor 28 and the coil 15 of the gas valve. Said series connection is connected in parallel to said inductance coil 16.
  • the power driver and fail safe circuit 10 further comprises a micro controller 30 and a peak current detector 31 both being connected to the gate 32 of said transistor 17.
  • the micro controller 30 is connected to the gate 32 of the transistor 17 trough a capacitor 33 and provides a dynamic, alternating signal to the gate 32. This signal provided by the transistor 17 depends on a reference DC voltage V REF .
  • the peak current detector 31 is connected with an output contact 34 to the gate 32 of said transistor 17, with a first input contact 35 to the source 20 of said transistor 17 and thereby to the first contact 25 of the resistor 18 and with a second input contact 36 to the input contact or ground contact.
  • the peak current detector 31 provides a dynamic signal to the gate 32 of the transistor 17 depending on the current flow through the resistor 18.
  • the transistor 17 can be turned on into a current conducting mode by the signal provided by the micro controller 30.
  • the transistor 17 can be turned off into the current blocking mode by a signal provided by the peak current detector 31.
  • the anode 37 of the diode 29 is connected to the second contact 24 of said inductance coil 16 and to the drain 19 of the transistor 17.
  • the cathode 38 of said diode 29 is connected to the output capacitor 28 and to a first output contact 13 of the power driver and fail safe circuit 10.
  • Said fuse 22 and the diode 23 being connected between the first contact 21 of said inductance coil 16 and the first input contact 11 of the power driver and fail safe circuit 10 are connected in series to each other, namely in such a way that the anode 39 of said diode 23 is connected to first input contact 11 of the power driver and fail safe circuit 10 and that the cathode 40 of said diode 23 is connected to the fuse 22.
  • the transistor 17 is preferably a MOSFET transistor. Most preferably the transistor 17 is a n-channel enhancement mode MOSFET transistor being normally turned off into the current blocking mode.
  • the power driver and fail safe circuit 10 works with a cycle to charge and discharge the inductance coil 16.
  • the signal provided by the micro controller 30 is preferably a signal of type on/off with a defined frequency fixed duty cycle.
  • the power driver and fail safe circuit 10 normally works for a defined time period which depends on the defined frequency, and for the next defined time period it is off. It should be noted that the system could in general work also continuously, whereby in this case the defined off time period would then be zero.
  • the micro controller 30 connects quickly capacitor 33 at the positive voltage.
  • the gate-source capacitor of the transistor 17 being an intrinsic component inside the transistor 17 is charging and, by a capacitive partition with capacitor 33, transistor 17 conducts.
  • the transistor 17 conducts till the current over inductance coil 16 or resistor 18 grows up to a maximum value.
  • the peak of the current in the inductance coil 16 or resistor 18 is detected and positive feedback is activated by the peak current detector 31 thereby turning off the transistor 17.
  • the output of the peak current detector 31 switches off the transistor 17, it resets to zero the charge of the capacitor gate-source of transistor 17 and of the capacitor 33.
  • the capacitor 33 is discharged.
  • the energy of inductance coil 16 is recovered by the diode 29 and the output capacitor 28.
  • the diode 29 turns on when transistor 17 turns off, so output capacitor 28 is charging.
  • the power driver and fail safe circuit 10 can not provide any output voltage VOUT to open the gas valve when one component fails.
  • the path to connect the coil 15 of the gas valve to the input voltage V IN passes through the diode 29 and transistor 17.
  • the diode 29 and the transistor 17 are able to withstand their failure. A failure of the transistor 17 can not damage the diode 29 and vice versa. If the transistor 17 would fail, the transistor 17 would be is in short. In case of the failure of the transistor 17 the power driver and fail safe circuit 10 can detect the failure because the coil 15 of gas valve can not be energized.
  • the Fuse 22 works detecting the failure, because current is limited by the impedance but exceeds the fuse rating. Inductance coil 16 is able to withstand the current that breaks the fuse 22. This failure mode shut off the board in safety mode.
  • the power driver and fail safe circuit 10 can also not provide any output voltage V OUT to the coil 15 to open the gas valve.
  • Figure 2 shows a second preferred embodiment of a power driver and fail safe circuit 10' having compared to power driver and fail safe circuit 10 according to figure 1 the difference that the input capacitor 27 is connected with a first contact between said fuse 22 and said diode 23 and with a second contact to ground so that the input capacitor 27 is connected in parallel to the fuse 22.
  • the input capacitor 27 is connected with a first contact between said fuse 22 and said inductance coil 16 and with a second contact to ground so that the input capacitor 27 is connected in series to the fuse 22.
  • the failure detection functionality remains the same.
  • Figure 3 shows a third preferred embodiment of a power driver and fail safe circuit 10" having compared to power driver and fail safe circuit 10 according to figure 1 as additional component a diode 41.
  • Said diode 41 is connected in parallel to said output capacitor 28, whereby the cathode 42 of said diode 41 is connected to the cathode 38 of the diode 29 and whereby the anode 43 of said diode 41 is connected to the first contact 21 of said inductance coil 16.
  • the electrical current would flow from the input power source to the diode 23, to the fuse 22, to the diode 42, to the diode 29, to the transistor 17 and than to the resistor.
  • the fuse 22 would work detecting the failure, because current is limited by the impedance of devices but exceeds the fuse rating. Diode 41 is able to withstand the current that breaks the fuse 22. This failure mode shut off the power driver and fail safe circuit 10 in safety mode.
  • Figure 4 shows a fourth preferred embodiment of a power driver and fail safe circuit 10"' having compared to power driver and fail safe circuit 10" according to figure 3 as additional components the diodes 44 and preferably the diodes 47 and 48.
  • the diodes 41, 44 are connected in parallel with the coil 15 of the gas valve.
  • the diode 44 is connected in parallel to said output capacitor 28 and said diode 41, whereby the cathode 45 of the diode 44 is connected to the cathode 42 of the diode 41 and whereby the anode 46 of the diode 44 is connected to the anode 43 of the diode 41.
  • the diodes 47 and 48 are connected in series to diode 29, namely in such a way that anode of the diode 47 is connected to the cathode of the diode 29, that the anode of the diode 48 is connected to the cathode of the diode 47 and that the cathode of the diode 48 is connected to the first output contact 13.
  • connection scheme for the input capacitor 27 as shown in figure 2 .
  • the power driver and fail safe circuits 10, 10' and 10" are all using a transistor 17 working like a switching operator.
  • the transistor 17 is driven by two commands, one to turn on the transistor 17 and the other to turn off transistor 17.
  • the signal to turn on the transistor 17 is generated by the micro controller 30 and the signal to turn off the transistor 17 is provided by the peak current detector 31. Between the two events the transistor 17 memorizes the state in its gate source capacitance.
  • the control of the power can be done electronically by the control of the energy stored into the inductance coil 16.
  • Current in the inductance coil 16 starts from zero, then the power driver and fail safe circuits 10, 10' and 10"controls the peak of the current and fixes carefully its maximum value. A constant flux of energy is assured by repeating the cycle at a constant frequency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electronic Switches (AREA)

Claims (11)

  1. Leistungstreiber- und Fail-Safe-Schaltung (10, 10', 10", 10"') für ein Gasventil, um das Gasventil derart zu öffnen oder zu schließen, dass das Gasventil geöffnet wird, wenn eine mit den Ausgangskontakten (13, 14) der Leistungstreiber- und Fail-Safe-Schaltung (10, 10', 10", 10"') verbindbare Spule (15) des Gasventils mit einem definierten, vollständig gesteuerten Gleichstromausgangsleistungspegel der Leistungstreiber- und Fail-Safe-Schaltung bestromt wird, und dass das Gasventil geschlossen wird, wenn die Spule (15) des Gasventils nicht mit dem definierten Gleichstromausgangsleistungspegel der Leistungstreiber- und Fail-Safe-Schaltung bestromt wird, umfassend:
    Eingangskontakte (11,12), mit denen eine einen definierten Gleichstromeingangsleistungspegel für die Schaltung bereitstellende Stromquelle verbindbar ist;
    eine Induktionsspule (16), einen Transistor (17) und einen Widerstand (18), die derart miteinander in Reihe geschaltet sind, dass die Induktionsspule (16) mit dem Drainanschluss (19) des Transistors (17) und dass der Widerstand (18) mit dem Sourceanschluss (20) des Transistors (17) verbunden ist;
    einen Eingangskondensator (27), der mit der Reihenschaltung aus der Induktionsspule (16), dem Transistor (17) und dem Widerstand (18) parallelgeschaltet ist;
    einen Ausgangskondensator (28), der zwischen die Ausgangskontakte (13, 14) geschaltet ist, an die die Spule (15) des Gasventils anschließbar ist;
    eine erste Diode (29), die in Reihe mit der Parallelschaltung des Ausgangskondensators (28) und der Spule (15) des Gasventils geschaltet ist; wobei die Reihenschaltung parallel zu der Induktionsspule (16) geschaltet ist, wobei die Anode (37) der ersten Diode (29) mit der Induktionsspule (16) und dem Drainanschluss (19) des Transistors (17) verbunden ist und die Kathode (38) der ersten Diode (29) mit dem Ausgangskondensator (28) und einem ersten Ausgangskontakt (13) verbunden ist;
    einen Mikrocontroller (30) und einen Spitzenstromdetektor (31), die beide derart mit dem Gateanschluss (32) des Transistors (17) verbunden sind, dass der Transistor (17) durch ein von dem Mikrocontroller (30) bereitgestellten Signal in einen stromleitenden Modus eingeschaltet werden kann und dass der Transistor (17) durch ein von dem Spitzenstromdetektor (31) bereitgestelltes Signal in einen stromsperrenden Modus ausgeschaltet werden kann;
    eine Sicherung (22), die mit der Induktionsspule (16) verbunden ist, wobei eine zweite Diode (23) mit der Sicherung (22) in Reihe geschaltet ist, wobei die Anode (39) dieser Diode (23) mit einem ersten Eingangskontakt (11) verbunden ist und wobei die Kathode (40) dieser Diode (23) mit der Sicherung (22) verbunden ist.
  2. Leistungstreiber- und Fail-Safe-Schaltung nach Anspruch 1, dadurch gekennzeichnet, dass, wenn der Transistor (17) in den stromleitenden Modus eingeschaltet wird, die Induktionsspule (16) geladen wird und der Strom durch den Widerstand (18), der mit dem Sourceanschluss (20) des Transistors (17) verbunden wird, seine Spitze erreicht.
  3. Leistungstreiber- und Fail-Safe-Schaltung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass, wenn der Transistor (17) in den stromsperrenden Modus ausgeschaltet wird, die Induktionsspule (16) über die erste Diode (29) entladen wird, wodurch der Ausgangskondensator (28) geladen wird.
  4. Leistungstreiber- und Fail-Safe-Schaltung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Transistor (17) ein MOSFET-Transistor ist.
  5. Leistungstreiber- und Fail-Safe-Schaltung nach Anspruch 4, dadurch gekennzeichnet, dass der MOSFET-Transistor ein n-Kanal-MOSFET-Transistor ist, der im Stromsperrmodus normalerweise ausgeschaltet ist.
  6. Leistungstreiber- und Fail-Safe-Schaltung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Spitzenstromdetektor (31) mit einem Ausgangskontakt (34) mit dem Gateanschluss (32) des Transistors (17), mit einem ersten Eingangskontakt (35) mit dem Sourceanschluss (20) des Transistors (17) und mit einem Kontakt (25) des Widerstands (18) und mit einem zweiten Eingangskontakt (36) mit dem anderen Kontakt (26) des Widerstands (18) und mit Masse verbunden ist.
  7. Leistungstreiber- und Fail-Safe-Schaltung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Eingangskondensator (27) mit einem ersten Kontakt zwischen der Sicherung (22) und der Induktionsspule (16) und mit einem zweiten Kontakt mit Masse verbunden ist, so dass der Eingangskondensator (27) mit der Sicherung (22) in Reihe geschaltet ist.
  8. Leistungstreiber- und Fail-Safe-Schaltung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Eingangskondensator (27) mit einem ersten Kontakt zwischen der Sicherung (22) und der Diode (23) und mit einem zweiten Kontakt mit Masse verbunden ist, so dass der Eingangskondensator (27) parallel zur Sicherung (22) geschaltet ist.
  9. Leistungstreiber- und Fail-Safe-Schaltung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass eine dritte Diode (41) parallel zu dem Ausgangskondensator (28) geschaltet ist, wodurch die Kathode (42) der dritten Diode (41) mit der Kathode (38) der ersten Diode (29) verbunden ist und wodurch die Anode (43) der dritten Diode (41) mit der Induktionsspule (16) verbunden ist.
  10. Leistungstreiber- und Fail-Safe-Schaltung nach Anspruch 9, dadurch gekennzeichnet, dass eine vierte Diode (44) parallel zum Ausgangskondensator (28) und zur dritten Diode (41) geschaltet ist, wodurch die Kathode (45) der vierten Diode (44) mit der Kathode (42) der dritten Diode (41) verbunden ist und wodurch die Anode (46) der vierten Diode (44) mit der Anode (43) der dritten Diode (41) verbunden ist.
  11. Leistungstreiber- und Fail-Safe-Schaltung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass eine fünfte Diode (47) und eine sechste Diode (48) in Reihe mit der ersten Diode (29) geschaltet sind, nämlich derart, dass die Anode der fünften Diode (47) mit der Kathode der ersten Diode (29) verbunden ist, dass die Anode der sechsten Diode (48) mit der Kathode der fünften Diode (47) und dass die Kathode der sechsten Diode (48) mit einem ersten Ausgangskontakt (13) verbunden ist.
EP10004949.3A 2010-05-11 2010-05-11 Leitstungstreiber und ausfallsicherer Schaltkreis für ein Gasventil Active EP2387046B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10004949.3A EP2387046B1 (de) 2010-05-11 2010-05-11 Leitstungstreiber und ausfallsicherer Schaltkreis für ein Gasventil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10004949.3A EP2387046B1 (de) 2010-05-11 2010-05-11 Leitstungstreiber und ausfallsicherer Schaltkreis für ein Gasventil

Publications (2)

Publication Number Publication Date
EP2387046A1 EP2387046A1 (de) 2011-11-16
EP2387046B1 true EP2387046B1 (de) 2015-01-21

Family

ID=42829066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10004949.3A Active EP2387046B1 (de) 2010-05-11 2010-05-11 Leitstungstreiber und ausfallsicherer Schaltkreis für ein Gasventil

Country Status (1)

Country Link
EP (1) EP2387046B1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2238393A5 (de) * 1973-07-17 1975-02-14 Rv Const Electriques
US4831313A (en) * 1987-09-14 1989-05-16 Lennox Industries, Inc. Two speed motor controller
US6256185B1 (en) * 1999-07-30 2001-07-03 Trombetta, Llc Low voltage direct control universal pulse width modulation module
US7358706B2 (en) * 2004-03-15 2008-04-15 Philips Solid-State Lighting Solutions, Inc. Power factor correction control methods and apparatus
US20070285195A1 (en) * 2006-06-13 2007-12-13 Nehl Thomas W Direct flux control system for magnetic structures

Also Published As

Publication number Publication date
EP2387046A1 (de) 2011-11-16

Similar Documents

Publication Publication Date Title
US9621068B2 (en) Load driving circuit and method thereof
US11646569B2 (en) Secondary battery protection circuit, secondary battery protection apparatus and battery pack
KR101308783B1 (ko) 무정전 전원 장치
US11239756B2 (en) Troubleshooting method and apparatus for power supply device
WO2010150488A1 (ja) 電源保護回路およびそれを備えたモータ駆動装置
KR102130290B1 (ko) 충방전 제어 회로 및 배터리 장치
CN107852024B (zh) 电源单元及其反向馈电保护方法
US10530250B2 (en) Multiphase converter
KR20170078437A (ko) 양방향 dc-dc 컨버터를 보호하기 위한 방법 및 시스템
US8625317B2 (en) Isolated switch-mode power supply device
WO2008021440A4 (en) VOLTAGE DROP CONVERTER FAILURE DETECTION METHOD
US9184742B2 (en) High side driver with power supply function
US20090289692A1 (en) Nagative voltage switch
CN111817535B (zh) 一种待机零功耗的开关电源及用电设备
CN101958533B (zh) 用于隔离式电源供应器的电流感测电阻短路保护装置及方法
EP2387046B1 (de) Leitstungstreiber und ausfallsicherer Schaltkreis für ein Gasventil
KR20120027151A (ko) 전자 스위치 제어 시스템 및 전자 스위치 구동 방법
JP5492009B2 (ja) 負荷制御装置
WO2014110018A1 (en) Hold-up circuit, power converter system and method of providing a regulated output during hold-up time
CN104734542A (zh) 在电压波谷的谷底切换的电源控制器以及相关的控制方法
US11264890B2 (en) Power supply protection circuit
EP2775207B1 (de) Steuerschaltung für ein Gasventil
KR101355412B1 (ko) 과전압 보호 기능을 구비한 스위칭 모드 컨버터 및 그 제어 방법
KR20230109338A (ko) 전력 변환 장치
KR20160004764A (ko) 고장 허용 제어 시스템

Legal Events

Date Code Title Description
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 SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

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

17P Request for examination filed

Effective date: 20120515

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140903

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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 SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602010021899

Country of ref document: DE

Effective date: 20150312

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 709488

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150315

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20150121

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 709488

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150121

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150421

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150421

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150422

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150521

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602010021899

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20151022

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150531

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150511

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150511

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20100511

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150121

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602010021899

Country of ref document: DE

Owner name: PITTWAY SARL, CH

Free format text: FORMER OWNER: HONEYWELL TECHNOLOGIES SARL, ROLLE, CH

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20220505 AND 20220512

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230523

Year of fee payment: 14

Ref country code: DE

Payment date: 20230601

Year of fee payment: 14

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230827

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230523

Year of fee payment: 14