ES2164595A1 - Sensor circuit, for glass ceramic electric cooker hob, amplifies and demodulates voltage signal by comparing each voltage signal with reference voltage - Google Patents

Sensor circuit, for glass ceramic electric cooker hob, amplifies and demodulates voltage signal by comparing each voltage signal with reference voltage

Info

Publication number
ES2164595A1
ES2164595A1 ES200000717A ES200000717A ES2164595A1 ES 2164595 A1 ES2164595 A1 ES 2164595A1 ES 200000717 A ES200000717 A ES 200000717A ES 200000717 A ES200000717 A ES 200000717A ES 2164595 A1 ES2164595 A1 ES 2164595A1
Authority
ES
Spain
Prior art keywords
voltage signal
demodulates
amplifies
comparing
voltage
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
Application number
ES200000717A
Other languages
Spanish (es)
Other versions
ES2164595B1 (en
Inventor
Aurre Ismael Arbe
Alzuri Jose Maria Mitxelena
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.)
Eika SCL
Original Assignee
Eika SCL
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 Eika SCL filed Critical Eika SCL
Priority to ES200000717A priority Critical patent/ES2164595B1/en
Priority to ES200002818A priority patent/ES2178577B1/en
Priority to DE60119016T priority patent/DE60119016T2/en
Priority to EP01500048A priority patent/EP1137323B1/en
Priority to ES01500048T priority patent/ES2259017T3/en
Priority to AT01500048T priority patent/ATE324766T1/en
Priority to US09/798,839 priority patent/US6348677B2/en
Publication of ES2164595A1 publication Critical patent/ES2164595A1/en
Application granted granted Critical
Publication of ES2164595B1 publication Critical patent/ES2164595B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Electronic Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

A microprocessor (4) supplies a pulse train (5) to generator circuits (4,6,7) to generate high frequency current (Ig) to sensor loops (E1-E4) of heaters (F1-F4). Evaluation circuits (4,9-12) measures the resultant voltage (Vs) and magnetic field at the ends of sensor loops. Each resultant voltage signal is compared with a reference voltage (Vr), based on which voltage signal (Vs) is amplified and demodulated by the circuits (4,9,11').
ES200000717A 2000-03-24 2000-03-24 CIRCUIT FOR THE DETECTION OF CONTAINER IN A KITCHEN PLATE. Expired - Fee Related ES2164595B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES200000717A ES2164595B1 (en) 2000-03-24 2000-03-24 CIRCUIT FOR THE DETECTION OF CONTAINER IN A KITCHEN PLATE.
ES200002818A ES2178577B1 (en) 2000-03-24 2000-11-24 CONTAINER SENSOR ON A KITCHEN PLATE, WITH A LOW FREQUENCY MEASUREMENT CIRCUIT.
EP01500048A EP1137323B1 (en) 2000-03-24 2001-02-26 Sensor circuit for detecting the presence of a pan on an electric cooking hob
ES01500048T ES2259017T3 (en) 2000-03-24 2001-02-26 CONTAINER SENSOR CIRCUIT IN A KITCHEN ELECTRIC PLATE.
DE60119016T DE60119016T2 (en) 2000-03-24 2001-02-26 Sensor device for detecting the presence of a pot on an electric hotplate
AT01500048T ATE324766T1 (en) 2000-03-24 2001-02-26 SENSOR DEVICE FOR DETECTING THE PRESENCE OF A POT ON AN ELECTRIC COOKING PLATE
US09/798,839 US6348677B2 (en) 2000-03-24 2001-03-01 Sensor circuit for detecting the presence of a pan on an electric cooker hob

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200000717A ES2164595B1 (en) 2000-03-24 2000-03-24 CIRCUIT FOR THE DETECTION OF CONTAINER IN A KITCHEN PLATE.

Publications (2)

Publication Number Publication Date
ES2164595A1 true ES2164595A1 (en) 2002-02-16
ES2164595B1 ES2164595B1 (en) 2003-04-01

Family

ID=8492844

Family Applications (2)

Application Number Title Priority Date Filing Date
ES200000717A Expired - Fee Related ES2164595B1 (en) 2000-03-24 2000-03-24 CIRCUIT FOR THE DETECTION OF CONTAINER IN A KITCHEN PLATE.
ES200002818A Expired - Fee Related ES2178577B1 (en) 2000-03-24 2000-11-24 CONTAINER SENSOR ON A KITCHEN PLATE, WITH A LOW FREQUENCY MEASUREMENT CIRCUIT.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES200002818A Expired - Fee Related ES2178577B1 (en) 2000-03-24 2000-11-24 CONTAINER SENSOR ON A KITCHEN PLATE, WITH A LOW FREQUENCY MEASUREMENT CIRCUIT.

Country Status (1)

Country Link
ES (2) ES2164595B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2618351A1 (en) * 2015-12-18 2017-06-21 Bsh Electrodomésticos España, S.A. Cooking field device (Machine-translation by Google Translate, not legally binding)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3711589A1 (en) * 1987-04-06 1988-10-27 Kueppersbusch Cooking appliance
EP0429120A2 (en) * 1989-11-17 1991-05-29 Whirlpool Europe B.V. Device for detecting the presence of a food cooking container on a cooking hob
EP0553425A1 (en) * 1992-01-28 1993-08-04 Whirlpool Europe B.V. Method and device for detecting the presence of a body, for example a saucepan, on a glass ceramic cooking hob in correspondence with a heating element associated with said hob
EP0620698A1 (en) * 1993-04-13 1994-10-19 Whirlpool Europe B.V. Device for detecting the presence of a food container, such as a saucepan, dish or the like, on a glass ceramic cooking hob

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320626B (en) * 1996-12-19 2000-10-18 Ceramaspeed Ltd Cooking utensil detection method
DE19700753C2 (en) * 1997-01-11 2000-09-14 Schott Glas Hob with a non-metallic hotplate
US6184501B1 (en) * 1999-09-23 2001-02-06 Cherry Gmbh Object detection system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3711589A1 (en) * 1987-04-06 1988-10-27 Kueppersbusch Cooking appliance
EP0429120A2 (en) * 1989-11-17 1991-05-29 Whirlpool Europe B.V. Device for detecting the presence of a food cooking container on a cooking hob
EP0553425A1 (en) * 1992-01-28 1993-08-04 Whirlpool Europe B.V. Method and device for detecting the presence of a body, for example a saucepan, on a glass ceramic cooking hob in correspondence with a heating element associated with said hob
EP0620698A1 (en) * 1993-04-13 1994-10-19 Whirlpool Europe B.V. Device for detecting the presence of a food container, such as a saucepan, dish or the like, on a glass ceramic cooking hob

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2618351A1 (en) * 2015-12-18 2017-06-21 Bsh Electrodomésticos España, S.A. Cooking field device (Machine-translation by Google Translate, not legally binding)
US11150959B2 (en) 2015-12-18 2021-10-19 BSH Hausgeräte GmbH Hob device

Also Published As

Publication number Publication date
ES2178577A1 (en) 2002-12-16
ES2178577B1 (en) 2003-09-16
ES2164595B1 (en) 2003-04-01

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