CA2215582A1 - Parallel connected ptc elements - Google Patents

Parallel connected ptc elements

Info

Publication number
CA2215582A1
CA2215582A1 CA2215582A CA2215582A CA2215582A1 CA 2215582 A1 CA2215582 A1 CA 2215582A1 CA 2215582 A CA2215582 A CA 2215582A CA 2215582 A CA2215582 A CA 2215582A CA 2215582 A1 CA2215582 A1 CA 2215582A1
Authority
CA
Canada
Prior art keywords
parallel connected
ptc elements
metal plates
connected ptc
ptc material
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
CA2215582A
Other languages
French (fr)
Other versions
CA2215582C (en
Inventor
Jeffrey A. West
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.)
Emerson Electric Co
Original Assignee
Therm O Disc Inc
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 Therm O Disc Inc filed Critical Therm O Disc Inc
Publication of CA2215582A1 publication Critical patent/CA2215582A1/en
Application granted granted Critical
Publication of CA2215582C publication Critical patent/CA2215582C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/18—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material comprising a plurality of layers stacked between terminals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/1406—Terminals or electrodes formed on resistive elements having positive temperature coefficient
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/048—Speed or phase control by synchronisation signals using the properties of error detecting or error correcting codes, e.g. parity as synchronisation signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1806—Pulse code modulation systems for audio signals
    • G11B20/1813—Pulse code modulation systems for audio signals by adding special bits or symbols to the coded information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0098—Unequal error protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A plurality of PTC material layers and a plurality of metal plates are sandwiched together with one adjacent pair of metal plates connected in series through one layer of PTC material. The remaining PTC material layers are connected in parallel with the one layer by selectively interconnecting the other metal plates with the one adjacent pair of metal plates.
CA002215582A 1996-09-27 1997-09-15 Parallel connected ptc elements Expired - Fee Related CA2215582C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/720,076 US6215388B1 (en) 1996-09-27 1996-09-27 Parallel connected PTC elements
US08/720,076 1996-09-27

Publications (2)

Publication Number Publication Date
CA2215582A1 true CA2215582A1 (en) 1998-03-27
CA2215582C CA2215582C (en) 2000-12-26

Family

ID=24892533

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002215582A Expired - Fee Related CA2215582C (en) 1996-09-27 1997-09-15 Parallel connected ptc elements

Country Status (4)

Country Link
US (1) US6215388B1 (en)
EP (1) EP0833350A3 (en)
JP (1) JPH10106805A (en)
CA (1) CA2215582C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6020808A (en) * 1997-09-03 2000-02-01 Bourns Multifuse (Hong Kong) Ltd. Multilayer conductive polymer positive temperature coefficent device
CN2735515Y (en) * 2004-09-10 2005-10-19 聚鼎科技股份有限公司 Over-current protection assembly
US8536496B2 (en) * 2004-09-15 2013-09-17 Watlow Electric Manufacturing Company Adaptable layered heater system
CA2582453C (en) * 2004-09-30 2012-11-06 Watlow Electric Manufacturing Company Modular layered heater system
US7119655B2 (en) * 2004-11-29 2006-10-10 Therm-O-Disc, Incorporated PTC circuit protector having parallel areas of effective resistance
US20080124060A1 (en) * 2006-11-29 2008-05-29 Tianyu Gao PTC airflow heater

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US996862A (en) 1910-07-14 1911-07-04 Alexander Loquin Electric resister.
US2143414A (en) * 1934-08-25 1939-01-10 Bell Telephone Labor Inc Electrical device
DE944974C (en) 1941-06-04 1956-06-28 Patra Patent Treuhand Resistor arrangement with ring-shaped semiconductor resistor housed in a gas-filled vessel
JPH06275408A (en) * 1993-03-24 1994-09-30 Murata Mfg Co Ltd Ptc thermistor
US3447118A (en) 1966-08-16 1969-05-27 Westinghouse Electric Corp Stacking module for flat packaged electrical devices
US3878501A (en) 1974-01-02 1975-04-15 Sprague Electric Co Asymmetrical dual PTCR package for motor start system
US3916264A (en) * 1974-07-01 1975-10-28 Texas Instruments Inc Time delay apparatus
US4414530A (en) 1981-06-22 1983-11-08 Texas Instruments Incorporated Miniature motor protector apparatus and method for assembling thereof
US5089688A (en) 1984-07-10 1992-02-18 Raychem Corporation Composite circuit protection devices
US4918421A (en) * 1986-03-20 1990-04-17 Lawless William N Nonlinear resistor for low temperature operation
US4698614A (en) 1986-04-04 1987-10-06 Emerson Electric Co. PTC thermal protector
EP0304196B1 (en) * 1987-08-17 1993-05-26 General Motors Corporation Electric motor armature current control circuit
US5382938A (en) 1990-10-30 1995-01-17 Asea Brown Boveri Ab PTC element
JP2532502Y2 (en) 1991-02-20 1997-04-16 株式会社村田製作所 Heating unit
DE59200295D1 (en) 1991-08-12 1994-08-25 Siemens Matsushita Components Heating device for heating flowing media.
JPH0543503U (en) 1991-11-08 1993-06-11 日本油脂株式会社 PTC thermistor device
DE69317288T2 (en) * 1992-07-09 1998-11-12 Raychem Corp Circuit protection device
DE4230848C1 (en) * 1992-09-15 1993-12-23 Siemens Matsushita Components Multiple cold conductor for overload protection - has stacked cold conductor discs with U=shaped hoops forming integral disc contacts and contact connections
US5488348A (en) 1993-03-09 1996-01-30 Murata Manufacturing Co., Ltd. PTC thermistor
JPH06302404A (en) * 1993-04-16 1994-10-28 Murata Mfg Co Ltd Lamination type positive temperature coefficient thermistor
US5691688A (en) * 1994-07-20 1997-11-25 Therm-O-Disc, Incorporated PTC device
US5668521A (en) * 1995-03-22 1997-09-16 Littelfuse, Inc. Three piece female blade fuse assembly having fuse link terminal with a clip receiving portion
US5663861A (en) 1995-06-07 1997-09-02 Littelfuse, Inc. Resettable automotive circuit protection device
JPH11500872A (en) * 1995-08-07 1999-01-19 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ Multiline positive temperature coefficient resistance

Also Published As

Publication number Publication date
EP0833350A2 (en) 1998-04-01
EP0833350A3 (en) 1999-09-01
CA2215582C (en) 2000-12-26
US6215388B1 (en) 2001-04-10
JPH10106805A (en) 1998-04-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed