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GB2002984A - Improved television receiver line deflection output stage - Google Patents

Improved television receiver line deflection output stage

Info

Publication number
GB2002984A
GB2002984A GB7833798A GB7833798A GB2002984A GB 2002984 A GB2002984 A GB 2002984A GB 7833798 A GB7833798 A GB 7833798A GB 7833798 A GB7833798 A GB 7833798A GB 2002984 A GB2002984 A GB 2002984A
Authority
GB
United Kingdom
Prior art keywords
primary
transformer
current
scanning
switch
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
GB7833798A
Other versions
GB2002984B (en
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.)
Nokia Oyj
Original Assignee
Salora Oy
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 Salora Oy filed Critical Salora Oy
Publication of GB2002984A publication Critical patent/GB2002984A/en
Application granted granted Critical
Publication of GB2002984B publication Critical patent/GB2002984B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/60—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor
    • H03K4/62—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as a switching device

Landscapes

  • Details Of Television Scanning (AREA)

Abstract

A television receiver's line deflection output stage circuit arrangement for developing in a deflection yoke a sawtooth waveform current, comprising scanning and return portions, comprising an input transformer with primary and secondary windings, a primary switch for connecting the primary winding of the input transformer to a power supply and a bidirectional secondary switch to connect the deflection yoke during the scanning stroke to a scanning capacitor having the scanning voltage and to connect the energy storage condenser to the secondary coil of the transformer, the improvement being that the mutual polarities of the primary and secondary windings of the transformer being such that following turn- off of the secondary switch the return pulse appearing on the secondary winding induces through the transformer in the primary winding a current, which nullifies the current in the primary winding and so nullifies the current in the primary switch. <IMAGE>
GB7833798A 1977-08-18 1978-08-18 Television receiver line deflection output stage Expired GB2002984B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI772461A FI55278C (en) 1977-08-18 1977-08-18 KOPPLING VID ETT LINJESLUTSTEG I EN TELEVISIONSMOTTAGARE

Publications (2)

Publication Number Publication Date
GB2002984A true GB2002984A (en) 1979-02-28
GB2002984B GB2002984B (en) 1982-03-10

Family

ID=8511022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7833798A Expired GB2002984B (en) 1977-08-18 1978-08-18 Television receiver line deflection output stage

Country Status (5)

Country Link
DE (1) DE2835946B2 (en)
FI (1) FI55278C (en)
GB (1) GB2002984B (en)
IT (1) IT1115572B (en)
SE (1) SE438399B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033678A1 (en) * 1980-01-31 1981-08-12 Videocolor Maintenance method for an electrical oscillating circuit and horizontal deflection device for a cathode ray tube using this method
FR2477813A2 (en) * 1980-03-05 1981-09-11 Oceanic Sa HORIZONTAL SCAN CIRCUIT FOR TELEVISION RECEIVER
FR2493650A1 (en) * 1980-11-05 1982-05-07 Videocolor TV CRT line scan oscillation maintenance system - uses controlled switching of line output transformer windings and DC supply to power all TV circuits
US4484113A (en) * 1981-02-16 1984-11-20 Rca Corporation Regulated deflection circuit
US4524411A (en) * 1982-09-29 1985-06-18 Rca Corporation Regulated power supply circuit

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4362974A (en) 1979-03-12 1982-12-07 Rca Corporation Commutated switched regulator with line isolation for transistor deflection
IT1140711B (en) * 1979-03-12 1986-10-01 Rca Corp SWITCHING STABILIZER, ISOLATED FROM THE POWER SUPPLY, FOR A TRANSISTORIZED DEFLECTION CIRCUIT
FI60626C (en) * 1979-08-14 1982-02-10 Salora Oy STROEMKAELLA
US4291257A (en) 1979-11-30 1981-09-22 Rca Corporation Regulated deflection circuit with start-up and electronic circuit breaker control
US4298829A (en) * 1980-02-08 1981-11-03 Rca Corporation Power supply and deflection circuit with raster size compensation
DE3210908C2 (en) * 1982-03-25 1984-05-30 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Synchronized switched-mode power supply with mains-separated horizontal output stage circuit in television receivers
DE3328181C1 (en) * 1983-08-04 1984-05-24 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Standby operation with a horizontal Talendstufenschaltung combined with a switching power supply

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033678A1 (en) * 1980-01-31 1981-08-12 Videocolor Maintenance method for an electrical oscillating circuit and horizontal deflection device for a cathode ray tube using this method
FR2477813A2 (en) * 1980-03-05 1981-09-11 Oceanic Sa HORIZONTAL SCAN CIRCUIT FOR TELEVISION RECEIVER
FR2493650A1 (en) * 1980-11-05 1982-05-07 Videocolor TV CRT line scan oscillation maintenance system - uses controlled switching of line output transformer windings and DC supply to power all TV circuits
US4484113A (en) * 1981-02-16 1984-11-20 Rca Corporation Regulated deflection circuit
US4524411A (en) * 1982-09-29 1985-06-18 Rca Corporation Regulated power supply circuit

Also Published As

Publication number Publication date
SE438399B (en) 1985-04-15
SE7808441L (en) 1979-02-19
IT7868921A0 (en) 1978-08-17
FI55278C (en) 1979-06-11
DE2835946A1 (en) 1979-02-22
DE2835946B2 (en) 1980-01-10
GB2002984B (en) 1982-03-10
IT1115572B (en) 1986-02-03
FI55278B (en) 1979-02-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930818