EP1195558A1 - Control circuit - Google Patents
Control circuit Download PDFInfo
- Publication number
- EP1195558A1 EP1195558A1 EP00121821A EP00121821A EP1195558A1 EP 1195558 A1 EP1195558 A1 EP 1195558A1 EP 00121821 A EP00121821 A EP 00121821A EP 00121821 A EP00121821 A EP 00121821A EP 1195558 A1 EP1195558 A1 EP 1195558A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resistor
- control circuit
- microprocessor
- contact
- circuit according
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
- F23N5/206—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/26—Details
- F23N5/265—Details using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/08—Microprocessor; Microcomputer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/12—Burner simulation or checking
- F23N2227/16—Checking components, e.g. electronic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/06—Ventilators at the air intake
-
- 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
- F23N2235/14—Fuel valves electromagnetically operated
Definitions
- the invention relates to a control circuit according to the preamble of claim 1.
- Control circuits according to the prior art are known from EP-0 698 767 B1 and EP-0 855 557 B1 known.
- the control circuit according to EP-0 855 557 B1 is an advantageous one Further development of the control circuit according to EP-0 698 767 B1.
- the control circuit according to EP-0 855 557 B1 is used in gas burners with fan support Application. However, the control circuit according to EP-0 855 557 B1 is not Modifiable in that it is the same for atmospheric gas burners Gas burners without fan support could be used. So in the EP patent application 00102821.6 proposed a control circuit that both at Gas burners with fan support as well as with atmospheric gas burners for Use can come. The one proposed in EP patent application 00102821.6 Control circuitry provides an analog solution.
- the problem underlying the present invention is that of a digital control circuit create that both in gas burners with fan support as well atmospheric gas burners can be used
- a relay has RY1, which is responsible for switching a fan FA serves a changeover contact with NO1 make contact and break contact NC1, while the contact arm C1 is connected to a mains voltage line L.
- the relay is RY1 with an electronic switch, e.g. a transistor Q1 connected in series, the Control electrode is connected to an output of a microprocessor uP.
- the Power supply device PS Between the Mains voltage line L and the other mains voltage line N is one Voltage supply device PS for the microprocessor uP switched, the Power supply device PS provides two voltage output signals, namely a stabilized voltage + Vcc as supply voltage for the microprocessor uP and an unstabilized voltage + V, which is applied to the relay RY1.
- the FA blower is on the one hand on the mains voltage line N and on the other hand on the normally open contact NO1 connected.
- a first resistor R1 is connected between the mains voltage line L and the NO1 contact - so to speak parallel to the changeover contact - .
- Parallel to the blower FA that is between the mains voltage line N and the normally open contact NO1, is one Series connection of a second resistor R2 and a third resistor R3 switched, one between the second resistor R2 and the third resistor R3 first diode D1 is switched.
- the diode D1 can also be omitted. Becomes without diode D1, then only resistor R2 has to be dimensioned differently.
- a switch AP with contacts NO and C is also provided, the contact C on the mains voltage line N and the contact NO on the input P of the Microprocessor attacks uP.
- FIG. 1 elements such as gas valves to be controlled, Actuators for gas valves or flame detection circuits are not shown.
- the embodiment of Figure 1 shows a fan FA.
- the control circuit according to the invention can also be used for one atmospheric gas burners without fan support are used.
- the resistance of the resistor R1 to the Resistance value of a blower FA to be connected is large.
- a typical one The resistance value for a fan FA is 200 ohms.
- the resistance value of the In contrast, resistor R1 is large, e.g. at 1MOhm. Is a fan FA is present, then is the value of the voltage present at input F of the microprocessor uP low, because the resistor R1 has a high resistance value and the fan FA has a has low resistance.
- the microprocessor uP recognizes that it is an application with fan support.
- the value of the voltage applied to the input P of the microprocessor uP is high because in the case of an application with fan support the switch AP is open and the fan FA is not running at the beginning. However, if there is no fan FA, then that is voltage present at input F of the microprocessor uP high.
- the Voltage at input P of the microprocessor uP may be low because of the switch AP must be short-circuited. The microprocessor uP thus recognizes the levels of the Voltages at inputs P and F of the same, whether an application with fan support or without fan support.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Selective Calling Equipment (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Electronic Switches (AREA)
- Amplifiers (AREA)
Abstract
Description
Die Erfindung betrifft eine Steuerschaltung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a control circuit according to the preamble of claim 1.
Steuerschaltungen nach dem Stand der Technik sind aus EP-0 698 767 B1 und EP-0 855 557 B1 bekannt. Die Steuerschaltung gemäß EP-0 855 557 B1 ist eine vorteilhafte Fortentwicklung der Steuerschaltung gemäß EP-0 698 767 B1.Control circuits according to the prior art are known from EP-0 698 767 B1 and EP-0 855 557 B1 known. The control circuit according to EP-0 855 557 B1 is an advantageous one Further development of the control circuit according to EP-0 698 767 B1.
Die Steuerschaltung gemäß EP-0 855 557 B1 findet bei Gasbrennern mit Gebläse-Unterstützung Anwendung. Die Steuerschaltung gemäß EP-0 855 557 B1 ist jedoch nicht dahingehend modifizierbar, daß dieselbe bei atmosphärischen Gasbrennern, also bei Gasbrennern ohne Gebläse-Unterstützung, verwendet werden könnte. So wird in der EP-Patentanmeldung 00102821.6 eine Steuerschaltung vorgeschlagen, die sowohl bei Gasbrennern mit Gebläse-Unterstützung als auch bei atmosphärischen Gasbrennern zum Einsatz kommen kann. Die in der EP-Patentanmeldung 00102821.6 vorgeschlagene Steuerschaltung stellt eine analoge Lösung bereit.The control circuit according to EP-0 855 557 B1 is used in gas burners with fan support Application. However, the control circuit according to EP-0 855 557 B1 is not Modifiable in that it is the same for atmospheric gas burners Gas burners without fan support could be used. So in the EP patent application 00102821.6 proposed a control circuit that both at Gas burners with fan support as well as with atmospheric gas burners for Use can come. The one proposed in EP patent application 00102821.6 Control circuitry provides an analog solution.
Der vorliegenden Erfindung liegt das Problem zu Grunde, eine digitale Steuerschaltung zu schaffen, die sowohl bei Gasbrennern mit Gebläse-Unterstützung als auch bei atmosphärischen Gasbrennern zum Einsatz kommen kannThe problem underlying the present invention is that of a digital control circuit create that both in gas burners with fan support as well atmospheric gas burners can be used
Dieses Problem wird durch eine Steuerschaltung gemäß den Merkmalen des Anspruchs 1 gelöst. This problem is solved by a control circuit according to the features of claim 1 solved.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung. Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert. In der Zeichnung zeigt:
- Figur 1
- eine Schaltungsanordnung nach einem Ausführungsbeispiel der Erfindung.
- Figure 1
- a circuit arrangement according to an embodiment of the invention.
In dem in Figur 1 gezeigtem Ausführungsbeispiel hat ein Relais RY1, welches dem Schalten eines Gebläses FA dient, einen Umschaltkontakt mit Arbeitskontakt NO1 und Ruhekontakt NC1, während der Kontaktarm C1 an einer Netzspannungsleitung L liegt. Das Relais RY1 ist mit einem elektronischen Schalter, z.B. einem Transistor Q1, in Reihe geschaltet, dessen Steuerelektrode an einem Ausgang eines Mikroprozessors uP angeschlossen ist. Zwischen die Netzspannungsleitung L und die andere Netzspannungsleitung N ist eine Spannungsversorgungs-Einrichtung PS für den Mikroprozessors uP geschaltet, wobei die Spannungsversorgungs-Einrichtung PS zwei Spannungs-Ausgangssignale bereitstellt, nämlich eine stabilisierte Spannung +Vcc als Versorgungsspannung für den Mikroprozessors uP und eine nicht stabilisierte Spannung +V, die dem Relais RY1 beaufschlagt wird. Das Gebläse FA ist einerseits an der Netzspannungsleitung N und andererseits an dem Arbeitskontakt NO1 angeschlossen.In the exemplary embodiment shown in FIG. 1, a relay has RY1, which is responsible for switching a fan FA serves a changeover contact with NO1 make contact and break contact NC1, while the contact arm C1 is connected to a mains voltage line L. The relay is RY1 with an electronic switch, e.g. a transistor Q1 connected in series, the Control electrode is connected to an output of a microprocessor uP. Between the Mains voltage line L and the other mains voltage line N is one Voltage supply device PS for the microprocessor uP switched, the Power supply device PS provides two voltage output signals, namely a stabilized voltage + Vcc as supply voltage for the microprocessor uP and an unstabilized voltage + V, which is applied to the relay RY1. The FA blower is on the one hand on the mains voltage line N and on the other hand on the normally open contact NO1 connected.
Zwischen die Netzspannungsleitung L und den Arbeitskontakt NO1 - also gewissermaßen parallel zum Umschaltkontakt - ist ein erster Widerstand R1 geschaltet. Parallel zum Gebläse FA, also zwischen die Netzspannungsleitung N und dem Arbeitskontakt NO1, ist eine Reihenschaltung aus einem zweiten Widerstand R2 und einem dritten Widerstand R3 geschaltet, wobei zwischen den zweiten Widerstand R2 und den dritten Widerstand R3 eine erste Diode D1 geschaltet ist. Es sei angemerkt, daß die Diode D1 auch entfallen kann. Wird auf Diode D1 verzichtet, dann muß lediglich Widerstand R2 anders dimensioniert werden.Between the mains voltage line L and the NO1 contact - so to speak parallel to the changeover contact - a first resistor R1 is connected. Parallel to the blower FA, that is between the mains voltage line N and the normally open contact NO1, is one Series connection of a second resistor R2 and a third resistor R3 switched, one between the second resistor R2 and the third resistor R3 first diode D1 is switched. It should be noted that the diode D1 can also be omitted. Becomes without diode D1, then only resistor R2 has to be dimensioned differently.
Zwischen die erste Diode D1 und den dritten Widerstand R3, der mit dem von der ersten Diode D1 abgewandten Kontakt an der Netzspannungsleitung N angreift, greift ein vierter Widerstand R4 mit einem ersten Kontakt an, wobei der zweite Kontakt des Widerstands R4 an einen Eingang F des Mikroprozessors uP angeschlossen ist. Between the first diode D1 and the third resistor R3, which is the same as that of the first A fourth contacts the diode D1 facing away from the mains voltage line N Resistor R4 on with a first contact, the second contact of resistor R4 on an input F of the microprocessor uP is connected.
Zwischen die Versorgungsspannungsleitung des Mikroprozessors uP, die dem Mikroprozessors uP die stabilisierte Spannung +Vcc als Versorgungsspannung bereitstellt, und einen weiteren Eingang P des Mikroprozessors uP ist ein fünfter Widertsand R5 geschaltet. Gemäß Figur 1 ist weiterhin ein Schalter AP mit Kontakten NO und C vorgesehen, wobei der Kontakt C an der Netzspannungsleitung N und der Kontakt NO am Eingang P des Mikroprozessors uP angreift.Between the supply voltage line of the microprocessor uP, which the Microprocessor uP which provides stabilized voltage + Vcc as supply voltage, and a further input P of the microprocessor uP is a fifth resistor R5 connected. According to FIG. 1, a switch AP with contacts NO and C is also provided, the contact C on the mains voltage line N and the contact NO on the input P of the Microprocessor attacks uP.
Mit der oben beschriebenen Steuerschaltung wird eine digitale Lösung für die Ansteuerung eines Gasbrenners bereitgestellt, wobei in Figur 1 Elemente wie anzusteuernde Gasventile, Antriebe für Gasventile oder Flammendetektions-Schaltkreise nicht dargestellt sind.With the control circuit described above, a digital solution for the control of a gas burner provided, in FIG. 1 elements such as gas valves to be controlled, Actuators for gas valves or flame detection circuits are not shown.
Das Ausführungsbeispiel der Figur 1 zeigt ein Gebläse FA. Bei dem Ausführungsbeispiel handelt es sich demnach um einen Anwendungsfall für einen Gasbrenner mit Gebläse-Unterstützung. Die erfindungsgemäße Steuerschaltung kann jedoch auch bei einem atmosphärischen Gasbrenner ohne Gebläse-Unterstützung zum Einsatz kommen. In diesem Fall ist von Bedeutung, daß der Widerstandswert des Widerstands R1 gegenüber dem Widerstandswert eines anzuschließenden Gebläses FA groß ausgebildet ist. Ein typischer Widerstandswert für ein Gebläse FA liegt bei 200 Ohm. Der Widerstandswert des Widerstands R1 ist demgegenüber groß, er liegt z.B. bei 1MOhm. Ist ein Gebläse FA vorhanden, so ist der Wert der am Eingang F des Mikroprozessors uP anliegenden Spannung gering, weil der Widerstand R1 einen hohen Widerstandswert und das Gebläse FA einen geringen Widerstandswert aufweist. Der Mikroprozessor uP erkennt in diesem Fall, daß es sich um eine Anwendung mit Gebläse-Unterstützung handelt. Darüber hinaus müßte in diesem Fall der Wert der am Eingang P des Mikroprozessors uP anliegenden Spannung hoch sein, da im Fall einer Anwendung mit Gebläse-Unterstützung der Schalter AP geöffnet ist und das Gebläse FA zu Anfang nicht läuft. Falls jedoch kein Gebläse FA vorhanden ist, so ist die am Eingang F des Mikroprozessors uP anliegende Spannung hoch. Zusätzlich muß die Spannung am Eingang P des Mikroprozessors uP gering sein, da der Schalter AP kurzgeschlossen sein muß. Der Mikroprozessor uP erkennt also an den Pegeln der Spannungen an den Eingängen P und F desselben, ob eine Anwendung mit Gebläse-Unterstützung oder ohne Gebläse-Unterstützung vorliegt.The embodiment of Figure 1 shows a fan FA. In the embodiment it is therefore an application for a gas burner with fan support. However, the control circuit according to the invention can also be used for one atmospheric gas burners without fan support are used. In this It is important that the resistance of the resistor R1 to the Resistance value of a blower FA to be connected is large. A typical one The resistance value for a fan FA is 200 ohms. The resistance value of the In contrast, resistor R1 is large, e.g. at 1MOhm. Is a fan FA is present, then is the value of the voltage present at input F of the microprocessor uP low, because the resistor R1 has a high resistance value and the fan FA has a has low resistance. In this case, the microprocessor uP recognizes that it is an application with fan support. In addition, in In this case, the value of the voltage applied to the input P of the microprocessor uP is high because in the case of an application with fan support the switch AP is open and the fan FA is not running at the beginning. However, if there is no fan FA, then that is voltage present at input F of the microprocessor uP high. In addition, the Voltage at input P of the microprocessor uP may be low because of the switch AP must be short-circuited. The microprocessor uP thus recognizes the levels of the Voltages at inputs P and F of the same, whether an application with fan support or without fan support.
Claims (6)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT00121821T ATE266839T1 (en) | 2000-10-06 | 2000-10-06 | CONTROL CIRCUIT |
PT00121821T PT1195558E (en) | 2000-10-06 | 2000-10-06 | CONTROL CIRCUIT |
EP00121821A EP1195558B1 (en) | 2000-10-06 | 2000-10-06 | Control circuit |
DE50006421T DE50006421D1 (en) | 2000-10-06 | 2000-10-06 | control circuit |
ES00121821T ES2220313T3 (en) | 2000-10-06 | 2000-10-06 | CONTROL CIRCUIT. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00121821A EP1195558B1 (en) | 2000-10-06 | 2000-10-06 | Control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1195558A1 true EP1195558A1 (en) | 2002-04-10 |
EP1195558B1 EP1195558B1 (en) | 2004-05-12 |
Family
ID=8170027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00121821A Expired - Lifetime EP1195558B1 (en) | 2000-10-06 | 2000-10-06 | Control circuit |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1195558B1 (en) |
AT (1) | ATE266839T1 (en) |
DE (1) | DE50006421D1 (en) |
ES (1) | ES2220313T3 (en) |
PT (1) | PT1195558E (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58190621A (en) * | 1982-04-28 | 1983-11-07 | Matsushita Electric Ind Co Ltd | Controller for solenoid valve |
JPS61197916A (en) * | 1985-02-27 | 1986-09-02 | Matsushita Electric Ind Co Ltd | Controller for combustion type hot air space heater |
EP0102821B1 (en) | 1982-08-30 | 1987-04-08 | Konica Corporation | Silver halide color photographic light-sensitive material |
EP0352217A2 (en) * | 1988-07-20 | 1990-01-24 | Joh. Vaillant GmbH u. Co. | Process for controlling and supervising a fuel-heated apparatus with the use of at least one microcomputer system, and apparatus to carry out this process |
JPH02263012A (en) * | 1989-04-04 | 1990-10-25 | Hitachi Heating Appliance Co Ltd | Combustion controller |
EP0480312A1 (en) * | 1990-10-10 | 1992-04-15 | Honeywell B.V. | Air flow monitor device for burners |
EP0698767B1 (en) | 1994-08-24 | 1996-10-30 | Honeywell B.V. | Control circuit for a gas burner with monitoring of the combustion air supply |
EP0855557B1 (en) | 1997-01-22 | 1999-10-13 | Honeywell B.V. | Control circuit for a gas valve with monitoring of the combustion air supply |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1126219B1 (en) * | 2000-02-11 | 2002-09-25 | Honeywell B.V. | Control circuit |
-
2000
- 2000-10-06 ES ES00121821T patent/ES2220313T3/en not_active Expired - Lifetime
- 2000-10-06 EP EP00121821A patent/EP1195558B1/en not_active Expired - Lifetime
- 2000-10-06 DE DE50006421T patent/DE50006421D1/en not_active Expired - Lifetime
- 2000-10-06 PT PT00121821T patent/PT1195558E/en unknown
- 2000-10-06 AT AT00121821T patent/ATE266839T1/en not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58190621A (en) * | 1982-04-28 | 1983-11-07 | Matsushita Electric Ind Co Ltd | Controller for solenoid valve |
EP0102821B1 (en) | 1982-08-30 | 1987-04-08 | Konica Corporation | Silver halide color photographic light-sensitive material |
JPS61197916A (en) * | 1985-02-27 | 1986-09-02 | Matsushita Electric Ind Co Ltd | Controller for combustion type hot air space heater |
EP0352217A2 (en) * | 1988-07-20 | 1990-01-24 | Joh. Vaillant GmbH u. Co. | Process for controlling and supervising a fuel-heated apparatus with the use of at least one microcomputer system, and apparatus to carry out this process |
JPH02263012A (en) * | 1989-04-04 | 1990-10-25 | Hitachi Heating Appliance Co Ltd | Combustion controller |
EP0480312A1 (en) * | 1990-10-10 | 1992-04-15 | Honeywell B.V. | Air flow monitor device for burners |
EP0698767B1 (en) | 1994-08-24 | 1996-10-30 | Honeywell B.V. | Control circuit for a gas burner with monitoring of the combustion air supply |
EP0855557B1 (en) | 1997-01-22 | 1999-10-13 | Honeywell B.V. | Control circuit for a gas valve with monitoring of the combustion air supply |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 035 (M - 276) 15 February 1984 (1984-02-15) * |
PATENT ABSTRACTS OF JAPAN vol. 011, no. 025 (M - 556) 23 January 1987 (1987-01-23) * |
PATENT ABSTRACTS OF JAPAN vol. 015, no. 013 (M - 1069) 11 January 1991 (1991-01-11) * |
Also Published As
Publication number | Publication date |
---|---|
ES2220313T3 (en) | 2004-12-16 |
PT1195558E (en) | 2004-09-30 |
EP1195558B1 (en) | 2004-05-12 |
ATE266839T1 (en) | 2004-05-15 |
DE50006421D1 (en) | 2004-06-17 |
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