TR201602883A2 - FURNACE POWER CONTROL CIRCUIT WITH INDUCTION HEATER - Google Patents
FURNACE POWER CONTROL CIRCUIT WITH INDUCTION HEATER Download PDFInfo
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- TR201602883A2 TR201602883A2 TR2016/02883A TR201602883A TR201602883A2 TR 201602883 A2 TR201602883 A2 TR 201602883A2 TR 2016/02883 A TR2016/02883 A TR 2016/02883A TR 201602883 A TR201602883 A TR 201602883A TR 201602883 A2 TR201602883 A2 TR 201602883A2
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- induction coil
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- power control
- pot
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- 230000006698 induction Effects 0.000 title claims abstract description 93
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000005294 ferromagnetic effect Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000005291 magnetic effect Effects 0.000 abstract description 4
- 238000010411 cooking Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/05—Heating plates with pan detection means
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
Bu buluş, İndüksiyon ısıtıcılı ocaklarda kullanıma uygun, indüksiyon ısıtıcılı ocak yüzeyine yerleştirilen tencerenin (14) ısıtılması için manyetik enerji üretilmesini sağlayan, şebekeden alınan alternatif akımı doğru akıma çeviren bir köprü doğrultucu (2), köprü doğrultucu (2) çıkışında yer alan bir filtre endüktansı (3) ve bir filtre kapasitörü (4), bir indüksiyon bobini (5), en az bir rezonans kapasitör (6), en az bir güç anahtarı (7), bir sürücü devre (8) ve sürücü devre (8) vasıtasıyla güç anahtarlarının (7) çalışmasını düzenleyen bir mikrodenetleyici (9) içeren, indüksiyon ısıtıcılı ocak üzerinde tencere (14) varlığını tespit eden bir güç kontrol devresi (1) ile ilgilidir.SUMMARY OF THE INVENTION The present invention provides a bridge rectifier (2) suitable for use in induction heater furnaces, which converts the alternating current received from the network into direct current, which generates magnetic energy for heating the pot (14) placed on the surface of the induction heater, and a filter inductor located at the outlet of the bridge rectifier (2). (3) and a filter capacitor (4), an induction coil (5), at least one resonance capacitor (6), at least one power switch (7), a drive circuit (8) and drive circuit (8). The invention relates to a power control circuit (1) which detects the presence of pots (14) on the induction heater hob, comprising a microcontroller (9) regulating the operation of the switches (7).
Description
TARIFNAME INDÜKSIYON ISITICILI OCAK GÜÇ KONTROL DEVRESI Bu bulus, bir indüksiyon isiticili ocak üzerine yerlestirilen tencerenin varligini algilayan bir güç kontrol devresi ile ilgilidir. DESCRIPTION OVEN POWER CONTROL CIRCUIT WITH INDUCTION HEATER This invention reveals the existence of a pan placed on an induction heater cooktop. It is related to a power control circuit that senses.
Indüksiyon isiticili ocak, dökme demir veya çelik gibi ferromanyetik bir pisirme kabinin, indüksiyon bobini tarafindan olusturulan manyetik alan etkisiyle isitilmasi ilkesine göre çalismaktadir. Manyetik alan olusturan indüksiyon bobinlerinin sürülmesi için, elektronik devre üzerindeki güç anahtari (IGBT- miktarda elektrik akimi geçirilmektedir. Teknigin bilinen durumunda, tek bir indüksiyon bobininin sürülmesi için iki adet güç anahtari ve iki adet rezonans kapasitör kullanilarak gerçeklestirilen yarim köprü seri rezonans (HBSR-Half Bridge Series Resonant) devresi veya tek güç anahtari ve yine iki adet rezonans kapasitör kullanilarak gerçeklestirilen tek anahtarli yari rezonans (SSQR-Single Switch Quasi Resonant) devreleri kullanilmaktadir. An induction hob is a ferromagnetic cooktop such as cast iron or steel. by the effect of the magnetic field created by the induction coil of the cabinet. It works according to the principle of heating. magnetic field induction power switch on the electronic circuit (IGBT- amount of electric current is passed. In the state of the art, a single two power switches and two resonance switches for driving the induction coil half-bridge series resonance using capacitor (HBSR-Half Bridge Series Resonant) circuit or single power switch and again two resonant Single-switched half-resonance (SSQR-Single) realized using a capacitor Switch Quasi Resonant) circuits are used.
Indüksiyon isiticili ocak üzerinde ferromanyetik olmayan metalden üretilen tencere kullanilmasi veya tencere olmamasi, güç kontrol devresi açisindan zarar verici sonuçlara neden olmaktadir. Indüksiyon isiticili ocak üzerine küçük çapli kaplarin, çatal, kasik gibi mutfak gereçlerinin konulmasi durumunda da sistemin hizli bir sekilde “uygun tencere olmamasi” durumunu algilamasi ve indüksiyon bobininden geçen akimi kesmesi gerekmektedir. Indüksiyonlu isitmaya uygun tencere bulunmamasi durumu hizli bir sekilde algilanamadigi takdirde kullanici güvenligi açisindan sorunlar ortaya çikmaktadir. Teknigin bilinen durumunda uygun tencere olup olmamasi durumu, indüksiyon bobini tarafindan akim sinyali veya diger bir ifadeyle “darbe (pulse)” gönderilerek saglanmakta ancak indüksiyon bobini sebeke akimi ile enerjilendirildiginden yalnizca algilama islemi için gerekenden fazla enerji harcanmasina neden olmakta, ayrica algilama islemi esnasinda kullaniciyi rahatsiz eden gürültüler olusmaktadir. Produced from non-ferromagnetic metal on the hob with induction heater Using or not using a pot will cause harm to the power control circuit. lead to encouraging results. Small diameter on hob with induction heater In case of placing dishes, cutlery, utensils such as spoons, the system quickly detecting “no suitable pan” and induction It must cut the current flowing through the coil. Suitable for induction heating If the absence of cookware cannot be detected quickly, the user problems arise in terms of security. state of the art whether there is a suitable pot or not, the current signal by the induction coil or in other words, it is provided by sending a "pulse", but Since the induction coil is energized by the mains current, only the sensing operation causes more energy consumption than necessary for During the operation, noises occur that disturb the user.
EP2282606 sayili Avrupa patenti, bir indüksiyonlu cihaz kontrol yöntemi ile ilgilidir. Rezonans gerilimi, kontrol ünitesinde önceden belirlenen sabit bir referans gerilim ile karsilastirilarak indüksiyon bobini üzerindeki tencerenin varligi veya yoklugu, özdirenci ve büyüklügü tespit edilmektedir. European patent EP2282606 with an induction device control method is relevant. The resonant voltage is at a fixed predetermined voltage in the control unit. of the pot on the induction coil compared to the reference voltage. presence or absence, resistivity and size are determined.
EP1629698 sayili Avrupa Patentinde, güç dönüstürücü, mikroislemci, koruma devresi pisirme kabi algilama (pan detecting) devresi içeren bir indüksiyonlu pisirme sistemi açiklanmaktadir. In European Patent No. EP1629698, power converter, microprocessor, protection an induction circuit with a pan detecting circuit. The cooking system is explained.
EP1542508 sayili Avrupa Patenti, indüksiyon isiticili ocak yüzeyi üzerinde pisirme kaplarinin konumunun algilanmasi ile ilgilidir. European Patent EP1542508 on hob surface with induction heater relates to detecting the position of cooking pots.
EP2177076 sayili Avrupa Patenti, tüm pisirme yüzeyi indüksiyon bobinleri ile kaplanan bir indüksiyon isiticili ocagin çalistirma yöntemi ile ilgilidir. European Patent No. EP2177076, with all cooking surface induction coils It relates to the operating method of a coated induction heater stove.
Bu bulusun amaci, indüksiyon isiticili ocak üzerine yerlestirilen tencerenin varligini, indüksiyon bobinini enerjilendirmeksizin algilayan bir güç kontrol devresinin gerçeklestirilmesidir. The aim of this invention is to cook the pot placed on the induction heater hob. A power control device that detects its presence without energizing the induction coil. realization of the circuit.
Bu bulusun amacina ulasmak için gerçeklestirilen ve birinci istem ve bu isteme bagli istemlerde açiklanan indüksiyon isiticili ocak güç kontrol devresi, mikrodenetleyiciye bagli, kullanici tarafindan güç ayari yapilmadan önce indüksiyon bobininin henüz enerjilendirilmedigi çalisma baslangicinda elektriksel olarak indüksiyon bobinine baglanarak sinyaller gönderen, indüksiyon bobini - tencere ikilisinin seri direnç ve endüktans degerlerine göre sinüzoidal çikis gerilimi üreten bir elektronik osilatör tercihan bir Colpitts osilatör içermektedir.The first claim and this will, which are carried out to achieve the purpose of this invention cooker power control circuit with induction heater described in the dependent claims, connected to the microcontroller, before power adjustment by the user At the beginning of the operation, where the induction coil is not energized yet, electrical The induction coil, which sends signals by being connected to the induction coil - sinusoidal output according to the series resistance and inductance values of the pot pair an electronic oscillator generating the voltage preferably includes a Colpitts oscillator.
Mikrodenetleyici, Colpitts osilatörden aldigi verilere göre indüksiyon bobini üzerinde tencerenin var olup olmadigini ve tencere varsa ferromanyetik özelliklerinin uygun olup olmadigini tespit etmektedir. Microcontroller, induction coil according to the data it receives from Colpitts oscillator whether there is a pan on it and if there is a pan, it is ferromagnetic. determines whether the features are suitable or not.
Güç kontrol devresi ayrica Colpitts osilatörün indüksiyon bobinine baglanarak devreye alinmasini ve indüksiyon bobini ile baglantisinin kesilerek devreden çikarilmasini saglayan en az bir osilatör anahtari içermektedir. Indüsiyon isiticili ocak çalistirilip henüz tencerenin isitilmasi istenen güç ayarinin yapilmadigi baslangiç süresinde Colpitts osilatör indüksiyon bobinine elektriksel olarak bagli olup, indüksiyon bobinine tencere algilama amaçli sinyaller göndermektedir.The power control circuit is also connected to the induction coil of the Colpitts oscillator. start-up and disconnect it from the induction coil. It contains at least one oscillator switch that allows it to be removed. with induction heater the cooker is operated and the power setting desired to heat the pot has not been made yet. electrically coupled to the Colpitts oscillator induction coil during the start-up time and it sends signals to the induction coil for pot detection.
Tencere varligi algilandiginda osilatör anahtari Colpitts osilatörün indüksiyon bobinine baglantisini kesmekte, indüksiyon bobininin güç kontrol devresine baglanmasini saglamaktadir. Oscillator switch when pan presence is detected Colpitts oscillator induction It disconnects the coil from the power control circuit of the induction coil. it ensures its attachment.
Güç kontrol devresi ayrica Colpitts osilatörde üretilen sinüzoidal akimin tepe gerilim degerlerinin mikrodenetleyici tarafindan okunmasini saglayan bir tepe gerilim izleme devresi ve Colpitts osilatörde üretilen sinüzoidal akimi kare dalga formuna çevirerek sinyalin genliginin mikrodenetleyici tarafindan okunmasini saglayan bir sifir geçis izleme devresi içermektedir. The power control circuit also includes the peak sinusoidal current generated in the Colpitts oscillator. A peak that allows voltage values to be read by the microcontroller. The sinusoidal current generated in the voltage monitoring circuit and the Colpitts oscillator is a square wave It allows the amplitude of the signal to be read by the microcontroller by converting it into It includes a zero crossing monitoring circuit that provides
Colpitts osilatör içeren bulus konusu güç kontrol devresinin kullanildigi indüksiyon isiticili ocakta indüksiyon bobinine enerji verilmeden önce tencere varligi algilanmakta, enerji tüketimi azaltilmakta, güç anahtarlarinin yüksek akimdan zarar görmesi önlenmektedir. Ayrica tencere algilama sirasinda kullaniciyi rahatsiz eden sesler ortadan kaldirilmaktadir. Invention power control circuit with Colpitts oscillator is used. Before energizing the induction coil in the hob with an induction heater, the pot presence is detected, energy consumption is reduced, power switches are damage from the current is prevented. Also during pot detection Sounds that disturb the user are eliminated.
Bu bulusun amacina ulasmak için gerçeklestirilen indüksiyon isiticili ocak güç kontrol devresi ekli sekillerde gösterilmis olup bu sekillerden; Sekil 1 - Bir indüksiyon isiticili ocak güç kontrol devresinin sematik görünüsüdür. In order to achieve the aim of this invention, the induction heater cooker is powered by The control circuit is shown in the attached figures and from these figures; Figure 1 - is a schematic view of an induction cooker power control circuit.
Sekillerdeki parçalar tek tek numaralandirilmis olup bu numaralarin karsiligi asagida verilmistir. 1 - Güç kontrol devresi 2 - Köprü dogrultucu 3 - Filtre endüktansi 4 - Filtre kapasitörü - Indüksiyon bobini 6 - Rezonans kapasitör 7 - Güç anahtari 8 - Sürücü devre 9 - Mikrodenetleyici - Elektronik osilatör 11 - Osilatör anahtari 12 - Tepe gerilim izleme devresi 13 - Sifir geçis izleme devresi 14 - Tencere R: Direnç L: Endüktans AC: Sebeke akimi (alternatif akim) girisi indüksiyon isiticili ocaklarda kullanima uygun, indüksiyon isiticili ocak yüzeyine yerlestirilen tencerenin (vessel) (14) isitilmasi için manyetik enerji üretilmesini saglayan güç kontrol devresi (l) (veva kullanilan diger adiyla evirici (inverter) devresi) AC sebeke akimini filtreleyen bir filtreleme devresi (sekilde gösterilmemistir) sebekeden alinan alternatif akimi dogru akima çeviren bir köprü dogrultucu (2), DC hattinda köprü dogrultucu (2) çikisinda yer alan bir filtre endüktansi (3) ve bir filtre kapasitörü (4), indüksiyonlu ocagin üzerine yerlestirilen tencerenin (14) isitilmasi için enerjilendirilerek üzerinden bobin akimi geçmesi saglanan bir indüksiyon bobini (5), indüksiyon bobinini (5) enerjilendiren en az bir rezonans kapasitör (6), rezonans kapasitörün (6) sarj - desarj olmasini ve indüksiyon bobininden (5) tencereye (14) güç aktarilmasini saglayan en az bir güç anahtari (7), örnegin IGBT (Insulated Gate Bipolar Transistor), güç anahtarinin (7) gerekli seviyede sürme gerilimi (drive voltage) ile sürülmesini saglayan bir sürücü devre (8) ve sürücü devre (8) vasitasiyla güç anahtarlarinin (7) çalismasini düzenleyen bir mikrodenetleyici (9) içermektedir. The parts in the figures are numbered one by one and the corresponding numbers are given below. 1 - Power control circuit 2 - Bridge rectifier 3 - Filter inductance 4 - Filter capacitor - Induction coil 6 - Resonant capacitor 7 - Power switch 8 - Driver circuit 9 - Microcontroller - Electronic oscillator 11 - Oscillator switch 12 - Peak voltage monitoring circuit 13 - Zero crossing monitoring circuit 14 - Pot R: Resistance L: Inductance AC: Mains current (alternating current) input Suitable for use on hobs with induction heater, on hob surface with induction heater generating magnetic energy for heating the pot (vessel) (14) placed power control circuit (l) that provides circuit) A filtering circuit (see figure) that filters the AC mains current. (not shown) is a bridge that converts alternating current from the mains to direct current. The rectifier (2) is a filter located at the output of the bridge rectifier (2) on the DC line. inductance (3) and a filter capacitor (4) on the induction cooker In order to heat the placed pot (14), it is energized and the coil is an induction coil (5), which is allowed to pass the current, at least one resonant capacitor (6) that energizes the resonance capacitor (6) discharge and transfer of power from the induction coil (5) to the pot (14). at least one power switch (7), eg IGBT (Insulated Gate Bipolar transistor) with the required level of drive voltage of the power switch (7). power by means of a driver circuit (8) and a driver circuit (8) It contains a microcontroller (9) that regulates the operation of the switches (7).
Indüksiyon isiticili ocak, bir aç-kapa (on-off) dügmesi (sekillerde gösterilmemistir) ile çalistirilmakta ve Öncelikle mikrodenetleyici (9) ve kullanici arayüzü (sekillerde gösterilmemistir) gibi elektronik elemanlar devreye alimakta, baslangiçta indüksiyon bobini (5) enerjilendirilmemektedir. Daha sonra istenen güç kademesinde tencerenin (14) isitilmasi için kullanici tarafindan isitma ayari girisi yapilmakta ve indüksiyon bobini (5) enerjilendirilmektedir. The hob with an induction heater is equipped with an on-off button (see figures). not shown) and primarily the microcontroller (9) and the user electronic elements such as the interface (not shown in the figures) are activated, Initially, the induction coil (5) is not energized. later requested Heating setting by the user to heat the pot (14) at power level input is made and the induction coil (5) is energized.
Bulus konusu güç kontrol devresi (l), mikrodenetleyiciye (9) bagli, indüksiyon isiticili ocagin çalisma baslangicinda indüksiyon bobininin (5) henüz enerjilendirilmedigi durumda elektriksel olarak indüksiyon bobinine (5) baglanarak sinyaller gönderen, indüksiyon bobini (5) - tencere (14) ikilisinin seri direnç ve endüktans (R, L) degerlerine göre bir çikis gerilimi üreten bir elektronik osilatör (10) ve elektronik osilatörden (10) aldigi verilere göre indüksiyon bobini (5) üzerinde tencerenin (14) var olup olmadigini ve tencere (14) varsa ferromanyetik özelliklerinin uygun olup olmadigini tespit eden mikrodenetleyici (9) içermektedir. The power control circuit (l), which is the subject of the invention, is connected to the microcontroller (9), induction At the start of operation of the hotplate, the induction coil (5) has not yet electrically to the induction coil (5) when not energized series of the induction coil (5) - pot (14), which sends signals by connecting an electronics that produces an output voltage according to the values of resistance and inductance (R, L) The induction coil according to the data it receives from the oscillator (10) and the electronic oscillator (10). (5) whether there is a pan (14) on it and if there is a pan (14) microcontroller that detects whether its ferromagnetic properties are suitable (9) includes.
Bulusun tercih edilen uygulamasinda elektronik osilatör (10), sinüzoidal dalga seklinde akim üreten bir Colpitts osilatördür. In the preferred embodiment of the invention, the electronic oscillator (10) is a sinusoidal wave. It is a Colpitts oscillator that produces current in the form of
Elektronik osilatör (10) Indüksiyon bobini (5) enerjilendirilmeden önce indüksiyon isiticili ocak yüzeyi üzerinde tencerenin (14) olup olmadiginin sorgulanmasini saglamaktadir. Elektronik osilatör (10), bir düsük gerilim üreteci (sekillerde gösterilmemistir) vasitasiyla 3 - 3,5 Volt gibi düsük genlikli sinüzoidal bir gerilim seklinde sinyaller üreterek indüksiyon bobinine (5) uygulamaktadir.Electronic oscillator (10) Before the induction coil (5) is energized Checking whether the pot (14) is on the hob surface with the induction heater. makes it questionable. Electronic oscillator (10), a low voltage generator (not shown in the figures) through low amplitude sinusoidal 3 to 3.5 Volts. produces signals in the form of a voltage and applies them to the induction coil (5).
Indüksiyon bobini (5) - tencere (14) ikilisi, bilinen uygulamalarda oldugu gibi seri direnç ve endüktans (R, L) olarak modellenmektedir ve söz konusu direnç (R) ve endüktans (L) degerleri tencere (14) varligi veya yokluguna göre ve tencere (14) türüne göre degismektedir. Tencerenin (14) olmadigi durumda endüktans (L) degeri yüksek, direnç (R) degeri düsüktür. Indüksiyonlu isitmaya uygun ferromanyetik tencerenin (14) bulundugu durumda endüktans (L) degeri düsük, direnç (R) degeri yüksektir. Indüksiyonlu isitmaya uygun olmayan alüminyum, teflon, bakir gibi malzemeden üretilen tencere (14) konuldugunda ise hem direnç (R) hem de endüktans (L) degeri düsüktür. Elektronik osilatör (10), çalisma baslangicinda elektriksel olarak bagli oldugu indüksiyon bobinine (5) sinüzoidal giris gerilimi (akimi) uygulamaktadir. Elektronik osilatör (10), indüksiyon bobini (5) - tencere (14) ikilisinin durumuna göre bir sinüzoidal çikis gerilimi (akimi) üretmekte ve mikrodenetleyiciye (9) iletmektedir. Mikrodenetleyici (9), elektronik osilatörden (10) aldigi verileri degerlendirerek indüksiyon bobini (5) üzerinde tencerenin (14) var olup olmadigini, tencere (14) var ise ferromanyetik özelliklerinin uygun olup olmadigini tespit etmektedir. Induction coil (5) - pot (14) duo, as in known applications, in series is modeled as resistance and inductance (R, L) and said resistance (R) and inductance (L) values according to presence or absence of pot (14) and pot (14) varies by type. Inductance (L) without pot (14) value is high, resistance (R) value is low. Suitable for induction heating In the case of the ferromagnetic pot (14), the inductance (L) value is low, resistance (R) value is high. Aluminum not suitable for induction heating, When the pot (14) made of materials such as teflon and copper is placed, both resistance Both (R) and inductance (L) values are low. Electronic oscillator (10), working sinusoidal to the induction coil (5) to which it is electrically connected at the beginning. applies the input voltage (current). Electronic oscillator (10), induction coil (5) - a sinusoidal output voltage (current) according to the state of the pot (14) pair generates it and transmits it to the microcontroller (9). Microcontroller (9), electronics on the induction coil (5) by evaluating the data it receives from the oscillator (10). whether the pan (14) is present, if there is a pan (14), determines whether the features are suitable or not.
Bulusun bir uygulamasinda güç kontrol devresi (l) mikrodenetleyici (9) tarafindan çalismasi düzenlenen, indüksiyon bobini (5) enerjisiz durumdayken indüksiyon bobinine (5) baglanarak elektronik osilatörün (10) devreye alinmasini ve indüksiyon bobini (5) enerjilendirildiginde baglantiyi keserek elektronik osilatörün (10) devreden çikarilmasini saglayan en az bir osilatör anahtari (ll) içermektedir. In an embodiment of the invention, the power control circuit (l) is the microcontroller (9) when the induction coil (5) is de-energized, which is regulated by It enables the electronic oscillator (10) to be activated by connecting to the induction coil (5). and when the induction coil (5) is energized, it disconnects the electronic at least one oscillator switch (ll) that deactivates the oscillator (10) contains.
Indüksiyon isiticili ocagin çalisma baslangicinda güç anahtarlari (7) iletim kesiminde ve indüksiyon bobini (5) enerjisiz durumdayken osilatör anahtari (l 1) indüksiyon bobininin (5) güç kontrol devresi (1) ile baglantisini kesmis durumdadir. Osilatör anahtari (l 1) indüksiyon bobini (5) enerjisiz durumdayken elektronik osilatör (10) ile indüksiyon bobini (5) arasinda elektriksel baglantiyi saglamakta ve elektronik osilatör (10) tarafindan indüksiyon bobinine (5) tencere (14) varligini algilamak için sinyaller gönderilmektedir. Tencere (14) varligi tespit edildiginde osilatör anahtari (1 l) indüksiyon bobininin (5) güç kontrol devresine (1) baglanmasini ve elektronik osilatörün (10) devre disi kalmasi saglanmaktadir. At the start of operation of the induction heater, the power switches (7) oscillator switch (l 1) when the induction coil (5) is de-energized disconnected the induction coil (5) from the power control circuit (1) is in condition. Oscillator switch (l 1) with induction coil (5) de-energized make the electrical connection between the electronic oscillator (10) and the induction coil (5). and it is connected by the electronic oscillator (10) to the induction coil (5). (14) signals are sent to detect its presence. Detecting the presence of pan (14) the oscillator switch (1 l) is connected to the power control circuit of the induction coil (5). (1) is connected and the electronic oscillator (10) is disabled.
Bulusun bir baska uygulamasinda güç kontrol devresi (l), indüksiyon bobini (5) - tencere (14) ikilisinin durumuna göre elektronik osilatörde (10) üretilen sinüzoidal akimin tepe (peak) gerilim degerlerinin mikrodenetleyici (9) tarafindan okunmasini saglayan bir tepe gerilim izleme devresi (12) içermektedir. In another embodiment of the invention, the power control circuit (l) is the induction coil (5) - The sinusoidal generated in the electronic oscillator (10) according to the state of the pot (14) pair. The peak voltage values of the current are determined by the microcontroller (9). It includes a peak voltage monitoring circuit (12) that allows it to be read.
Bulusun bir baska uygulamasinda güç kontrol devresi (l), indüksiyon bobini (5) - tencere (14) ikilisinin durumuna göre elektronik osilatörde (10) üretilen sinüzoidal akimi kare dalga formuna çevirerek sinyalin genliginin mikrodenetleyici (9) tarafindan okunmasini saglayan bir sifir geçis izleme devresi (13) içermektedir. In another embodiment of the invention, the power control circuit (l) is the induction coil (5) - The sinusoidal generated in the electronic oscillator (10) according to the state of the pot (14) pair. Microcontroller (9) of the amplitude of the signal by converting the current into a square waveform. It includes a zero crossing monitoring circuit (13) that allows it to be read by
Mikrodenetleyici (9), tepe gerilim izleme devresi (12) ve sifir geçis izleme devresinden (13) aldigi verilere göre indüksiyon bobini (5) üzerinde tencerenin ( 14) var olup olmadigini, tencere (14) varsa ferromanyetik özelliklerinin uygun olup olmadigini tespit etmektedir. Microcontroller (9), peak voltage monitoring circuit (12) and zero-pass monitoring According to the data received from the circuit (13), the pot is placed on the induction coil (5). (14) whether it exists or not, if there is a pot (14), its ferromagnetic properties are suitable. detects whether
Bulusun bir baska uygulamasinda güç kontrol devresi (1) çift rezonans kapasitör (6) ve çift güç anahtarli (7) yarim köprü seri rezonans devresidir (HBSR: Half bridge series resonant Circuit). In another embodiment of the invention, the power control circuit (1) is a double resonant capacitor. (6) and double power switch (7) is a half-bridge series resonant circuit (HBSR: Half bridge series resonant Circuit).
Bulusun bir baska uygulamasinda güç kontrol devresi (1) tek rezonans kapasitör (6) ve tek güç anahtarli (7) yari rezonans devresidir (SSQR: Single switch quasi resonant Circuit). Bazi uygulamalarda tek çikisli evirici devre (Single-Ended Elektronik osilatör (10) içeren bulus konusu güç kontrol devresinin (1) kullanildigi indüksiyon isiticili ocakta çalisma baslangicinda, yalnizca mikrodenetleyici (9) ve kullanici arayüzünün devrede oldugu durumda ve indüksiyon bobinine (5) enerji verilmeden önce tencere (14) varligi veya yoklugu, tencere (14) varsa ferromanyetiklik Özelliginin uygun olup olmadigi algilanmaktadir. Böylece, enerji tüketimi azaltilmakta, indüksiyon bobinini (5) enerjilendiren güç anahtarlarinin (7) yüksek akimdan zarar görmesi ve tencere (14) algilama sirasinda kullaniciyi rahatsiz eden gürültü olusumu engellenmektedir. 9 p“ 12 In another embodiment of the invention, the power control circuit (1) is a single resonant capacitor. (6) and a single power switch (7) semi-resonant circuit (SSQR: Single switch quasi resonant circuit). In some applications, single output inverter circuit (Single-Ended) The power control circuit (1) of the invention comprising an electronic oscillator (10) at the beginning of the work on the hob with induction heater where it is used, only when the microcontroller (9) and the user interface are enabled and Presence or absence of the pot (14) before the induction coil (5) is energized, If there is a pot (14), whether the ferromagnetic property is suitable or not. is perceived. Thus, the energy consumption is reduced, the induction coil (5) energizing power switches (7) are damaged by high current and pots (14) noise formation that disturbs the user during detection is blocked. 9 p“ 12
Claims (8)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2016/02883A TR201602883A2 (en) | 2016-03-04 | 2016-03-04 | FURNACE POWER CONTROL CIRCUIT WITH INDUCTION HEATER |
| EP17708509.9A EP3424269B1 (en) | 2016-03-04 | 2017-03-03 | Induction heating cooker power control circuit |
| PCT/EP2017/055015 WO2017149126A1 (en) | 2016-03-04 | 2017-03-03 | Induction heating cooker power control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2016/02883A TR201602883A2 (en) | 2016-03-04 | 2016-03-04 | FURNACE POWER CONTROL CIRCUIT WITH INDUCTION HEATER |
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| Publication Number | Publication Date |
|---|---|
| TR201602883A2 true TR201602883A2 (en) | 2017-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TR2016/02883A TR201602883A2 (en) | 2016-03-04 | 2016-03-04 | FURNACE POWER CONTROL CIRCUIT WITH INDUCTION HEATER |
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| Country | Link |
|---|---|
| EP (1) | EP3424269B1 (en) |
| TR (1) | TR201602883A2 (en) |
| WO (1) | WO2017149126A1 (en) |
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| KR102069583B1 (en) * | 2017-06-26 | 2020-01-23 | 엘지전자 주식회사 | Induction heating apparatus and pot detection method thereof |
| CN111524491B (en) * | 2019-02-03 | 2021-05-25 | 京东方科技集团股份有限公司 | Driving circuit and driving method of dimming glass, and dimming glass device |
| US11678410B2 (en) * | 2019-07-24 | 2023-06-13 | Haier Us Appliance Solutions, Inc. | Determining presence of compatible cookware in induction heating systems |
| CN112393280A (en) * | 2019-08-19 | 2021-02-23 | 广东美的白色家电技术创新中心有限公司 | Electromagnetic cooking bench and control method thereof |
| CN112449451B (en) * | 2019-08-29 | 2023-03-21 | 台达电子工业股份有限公司 | Induction cooker and operation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1260456B (en) * | 1992-01-28 | 1996-04-09 | Whirlpool Italia | METHOD AND DEVICE TO DETECT A POT ON A GLASS-CERAMIC HOB IN THE PRESENCE OF A BODY IN CORRESPONDENCE WITH A HEATING ELEMENT ASSOCIATED WITH THAT PLAN |
| IT1272028B (en) * | 1993-03-15 | 1997-06-10 | Whirlpool Italia | DEVICE TO DETECT THE PRESENCE OF A FOOD CONTAINER, SUCH AS A POT, A BAKER OR SIMILAR, ON A GLASS-CERAMIC HOB. |
| ATE349880T1 (en) | 2003-05-28 | 2007-01-15 | Tubitak Bilten Turkiye Bilimse | INDUCTION HOB |
| DE60308704T2 (en) | 2003-12-08 | 2007-08-16 | Whirlpool Europe S.r.l., Benton Harbor | Device for determining the position of cooking vessels on a cooking plate |
| ES2324449B1 (en) | 2007-07-31 | 2010-05-25 | Bsh Electrodomesticos España, S.A | COOKING FIELD WITH A PLURALITY OF HEATING AND PROCEDURE ELEMENTS FOR THE OPERATION OF A COOKING FIELD. |
| ES2356441B1 (en) * | 2008-12-19 | 2012-03-13 | Bsh Electrodomésticos España, S.A. | COOKING FIELD WITH AN INDUCTOR, AN INVESTOR AND A CONNECTION DEVICE. |
| ATE554632T1 (en) | 2009-08-05 | 2012-05-15 | Coprecitec Sl | CONTROL METHOD FOR AN INDUCTION DEVICE AND INDUCTION DEVICE |
-
2016
- 2016-03-04 TR TR2016/02883A patent/TR201602883A2/en unknown
-
2017
- 2017-03-03 EP EP17708509.9A patent/EP3424269B1/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017149126A1 (en) | 2017-09-08 |
| EP3424269A1 (en) | 2019-01-09 |
| EP3424269B1 (en) | 2019-12-11 |
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