Amplificador óptico de pulsos (ART534S)

Written by: Newton C. Braga
Category: Artículos Técnicos y Proyectos

En su Application Note AN571A, Motorola sugiere varias aplicaciones para el acoplador óptico 4N26. Una de ellas es la de un amplificador de pulsos, mostrada en la figura 1.

 


 

 

Observe que es posible obtener pulsos compatibles con lógica TTL, con 5 V de amplitud a partir de pulsos de 2 V de amplitud, obtenidos de otra lógica siempre que tengan una capacidad de suministrar corriente de al menos 15 mA.

La gran ventaja de este circuito está en el aislamiento proporcionado por la presencia del acoplador óptico que llega a miles de voltios.

El circuito también tiene por característica la rapidez pudiendo trabajar con pulsos de apenas 4 us de duración, conforme atesta las formas de onda mostradas en el mismo diagrama.

El transistor MPS6515 puede ser sustituido por un equivalente de conmutación como el 2N2222.

 

 

 

pcbway_012_2024

Buscador de Datasheets


N° de Componente 

Banco de Circuitos

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  • SELECT `a`.`id`,`a`.`asset_id`,`a`.`title`,`a`.`alias`,`a`.`introtext`,`a`.`fulltext`,`a`.`state`,`a`.`catid`,`a`.`created`,`a`.`created_by`,`a`.`created_by_alias`,`a`.`modified`,`a`.`modified_by`,`a`.`checked_out`,`a`.`checked_out_time`,`a`.`publish_up`,`a`.`publish_down`,`a`.`images`,`a`.`urls`,`a`.`attribs`,`a`.`version`,`a`.`ordering`,`a`.`metakey`,`a`.`metadesc`,`a`.`access`,`a`.`hits`,`a`.`metadata`,`a`.`featured`,`a`.`language`,`fp`.`featured_up`,`fp`.`featured_down`,`c`.`title` AS `category_title`,`c`.`alias` AS `category_alias`,`c`.`access` AS `category_access`,`c`.`language` AS `category_language`,`fp`.`ordering`,`u`.`name` AS `author`,`parent`.`title` AS `parent_title`,`parent`.`id` AS `parent_id`,`parent`.`path` AS `parent_route`,`parent`.`alias` AS `parent_alias`,`parent`.`language` AS `parent_language`,ROUND(`v`.`rating_sum` / `v`.`rating_count`, 1) AS `rating`,`v`.`rating_count` AS `rating_count` FROM `incbmx_content` AS `a` INNER JOIN `incbmx_categories` AS `c` ON `c`.`id` = `a`.`catid` LEFT JOIN `incbmx_content_frontpage` AS `fp` ON `fp`.`content_id` = `a`.`id` LEFT JOIN `incbmx_users` AS `u` ON `u`.`id` = `a`.`created_by` LEFT JOIN `incbmx_categories` AS `parent` ON `parent`.`id` = `c`.`parent_id` LEFT JOIN `incbmx_content_rating` AS `v` ON `a`.`id` = `v`.`content_id` WHERE ( (`a`.`id` = :pk AND `c`.`published` > 0) AND (`a`.`publish_up` IS NULL OR `a`.`publish_up` <= :publishUp)) AND (`a`.`publish_down` IS NULL OR `a`.`publish_down` >= :publishDown) AND `a`.`state` IN (:preparedArray1,:preparedArray2)152μs6.17KBParams/components/com_content/src/Model/ArticleModel.php:215Copy
  • SELECT SUM(CASE WHEN `a`.`next_execution` <= :now THEN 1 ELSE 0 END) AS due_count,SUM(CASE WHEN `a`.`locked` IS NULL THEN 0 ELSE 1 END) AS locked_count FROM `incbmx_scheduler_tasks` AS `a` WHERE `a`.`state` = 172μs1.37KBParams/administrator/components/com_scheduler/src/Model/TasksModel.php:465Copy
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content
  • warningassets - No asset found for com_content.article.3386, falling back to com_content