ES2008555A6 - Fuente de alimentacion conmutada, en especial para receptor de television en color. - Google Patents

Fuente de alimentacion conmutada, en especial para receptor de television en color.

Info

Publication number
ES2008555A6
ES2008555A6 ES8802401A ES8802401A ES2008555A6 ES 2008555 A6 ES2008555 A6 ES 2008555A6 ES 8802401 A ES8802401 A ES 8802401A ES 8802401 A ES8802401 A ES 8802401A ES 2008555 A6 ES2008555 A6 ES 2008555A6
Authority
ES
Spain
Prior art keywords
operational
power supply
negative
input
tension
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.)
Expired
Application number
ES8802401A
Other languages
English (en)
Inventor
Ieto Carlos Enri Rodrigalvarez
Oliver Pere Basora
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.)
BERTRAN ELECTRONICA SA
Original Assignee
BERTRAN ELECTRONICA SA
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 BERTRAN ELECTRONICA SA filed Critical BERTRAN ELECTRONICA SA
Priority to ES8802401A priority Critical patent/ES2008555A6/es
Publication of ES2008555A6 publication Critical patent/ES2008555A6/es
Priority to PT9132489A priority patent/PT91324B/pt
Expired legal-status Critical Current

Links

Landscapes

  • Processing Of Color Television Signals (AREA)
  • Dc-Dc Converters (AREA)

Abstract

FUENTE DE ALIMENTACION CONMUTADA, EN ESPECIAL PARA RECEPTOR DE TELEVISION EN COLOR. EL DISPOSITIVO INTERRUPTOR DE LA FUENTE DE ALIMENTACIPON CONMUTADA COMPRENDE UN TRANSISTOR MOS Q2, QUE ACTUA COMO ELEMENTO DE CONMUTACION, UN AMPLIFICADOR OPERACIONAL IC2, QUE GOBIERNA AL TRANSISTOR MOS A TRAVES DE UN TRANSISTOR AMPLIFICADOR Q1, Y UNA PLURALIDAD DE RESISTENCIAS R11, R12, R13 Y R21 CONECTADAS A LA ENTRADA NEGATIVA DEL AMPLIFICADOR OPERACIONAL IC2 CONECTADAS A LA ENTRADA NEGATIVA DEL AMPLIFICADOR OPERACIONAL IC2 DE MANERA QUE LA TENSION APLICADA EN DICHA ENTRADA ESTE RELACIONADA CON LA TENSION CONTINUA DE GOBIERNO Y CON LA TENSION DE UN ARROLLAMIENTO AUXILIAR L2 DE REFERENCIA. TAMBIEN COMPRENDE UN AMPLIFICADOR OPERACIONAL IC1 CONECTADO A LAENTRADA POSITIVA DELAMPLIFICADOR OPERACIONAL IC2, UNA RESISTENCIA R20 DISPUESTAENTRE EL POLO NEGATIVO DE LA TENSION CONTINUA DE ENTRADA Y LA TENSION NEGATIVA O MASA DEL CIRCUITO DE REFERENCIA, UNA RESISTENCIA R4 CONECTADA ENTRE LA RESISTENCIA R20 Y LA ENTRADA POSITIVA DEL CIRCUITO OPERACIONAL IC1, Y UN DIODO ZENER DZ1 CONECTADO TAMBIEN A LA ENTRADA POSITIVA DEL AMPLIFICADOR OPERACIONAL IC1. SE CONSIGUE UNA TENSION INDEPENDIENTE DE LAS VARIACIONES DE LA TENSION DE RED.
ES8802401A 1988-08-01 1988-08-01 Fuente de alimentacion conmutada, en especial para receptor de television en color. Expired ES2008555A6 (es)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES8802401A ES2008555A6 (es) 1988-08-01 1988-08-01 Fuente de alimentacion conmutada, en especial para receptor de television en color.
PT9132489A PT91324B (pt) 1988-08-01 1989-07-31 Fonte de alimentacao comutada, em especial para receptor de televisao a cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8802401A ES2008555A6 (es) 1988-08-01 1988-08-01 Fuente de alimentacion conmutada, en especial para receptor de television en color.

Publications (1)

Publication Number Publication Date
ES2008555A6 true ES2008555A6 (es) 1989-07-16

Family

ID=8257555

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8802401A Expired ES2008555A6 (es) 1988-08-01 1988-08-01 Fuente de alimentacion conmutada, en especial para receptor de television en color.

Country Status (2)

Country Link
ES (1) ES2008555A6 (es)
PT (1) PT91324B (es)

Also Published As

Publication number Publication date
PT91324B (pt) 1995-07-06
PT91324A (pt) 1990-03-08

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2008-08-01

FD1A Patent lapsed

Effective date: 20001102