El circuito mostrado en la figura puede tener utilidad en los casos en que se utiliza una extensión telefónica común. Este circuito acciona un relé cuando cualquier extensión está fuera del gancho. El circuito se puede utilizar para apagar las otras extensiones de la línea para evitar la escucha. Otra posibilidad consiste en controlar algún tipo de automatismo, como encender una luz, cuando el teléfono es atendido. En este circuito puede ser necesario ajustar los valores de los componentes para obtener el mejor rendimiento. Así, la tensión en la coma del MOSFET debe estar entre 1 y 3 V negativos cuando los teléfonos estén en el gancho y debe subir a valores entre 6 y 10 V cuando sean retirados. El relé utilizado debe ser de 12 V con una corriente de 50 a 100 mA y la fuente usada debe tener una buena estabilización. Cualquier MOSFET de canal N se puede utilizar en esta aplicación.

 


 

 

 

18.837MBMemory Usage41.33msRequest Duration
Joomla! Version5.2.3
PHP Version8.3.20
Identityguest
Response200
Templatecassiopeia
Database
Server
mysql
Version
10.5.22-MariaDB
Collation
latin1_swedish_ci
Conn Collation
utf8mb4_general_ci
$_GET
[]
$_POST
[]
$_SESSION
array:1 [ "joomla" => "***redacted***" ]
$_COOKIE
[]
$_SERVER
array:49 [ "USER" => "apache" "HOME" => "/usr/share/httpd" "PATH_TRANSLATED" => "redirect:/ind...
session
array:3 [ "counter" => 1 "timer" => array:3 [ "start" => 1750617361 "last" => 1750617361...
registry
array:3 [ "data" => [] "initialized" => false "separator" => "." ]
user
array:21 [ "id" => 0 "name" => null "username" => null "email" => null "password" => "***r...
  • afterLoad (85.16KB) (795μs)
  • afterInitialise (1.14MB) (5.03ms)
  • afterRoute (89.95KB) (1.11ms)
  • beforeRenderComponent com_content (100.41KB) (592μs)
  • Before Access::preloadComponents (all components) (33.45KB) (310μs)
  • After Access::preloadComponents (all components) (107.06KB) (476μs)
  • Before Access::preloadPermissions (com_content) (1.57KB) (9μs)
  • After Access::preloadPermissions (com_content) (16.22MB) (22.74ms)
  • Before Access::getAssetRules (id:4683 name:com_content.article.7747) (514.65KB) (973μs)
  • After Access::getAssetRules (id:4683 name:com_content.article.7747) (7.38KB) (37μs)
  • afterRenderComponent com_content (18.86KB) (1.16ms)
  • afterDispatch (2.28KB) (65μs)
  • beforeRenderRawModule mod_articles_category (Banco de Circuitos) (408.62KB) (2.03ms)
  • afterRenderRawModule mod_articles_category (Banco de Circuitos) (15.43KB) (537μs)
  • beforeRenderRawModule mod_finder (Busca_inteligente) (5.9KB) (92μs)
  • afterRenderRawModule mod_finder (Busca_inteligente) (64.68KB) (1.4ms)
  • beforeRenderModule mod_articles_category (Banco de Circuitos) (9.27KB) (673μs)
  • afterRenderModule mod_articles_category (Banco de Circuitos) (5.47KB) (104μs)
  • beforeRenderModule mod_finder (Busca_inteligente) (6.64KB) (206μs)
  • afterRenderModule mod_finder (Busca_inteligente) (4.44KB) (54μs)
  • afterRender (157.48KB) (2.79ms)
  • 1 x After Access::preloadPermissions (com_content) (16.22MB) (55.02%)
    22.74ms
    1 x afterInitialise (1.14MB) (12.18%)
    5.03ms
    1 x afterRender (157.48KB) (6.76%)
    2.79ms
    1 x beforeRenderRawModule mod_articles_category (Banco de Circuitos) (408.62KB) (4.91%)
    2.03ms
    1 x afterRenderRawModule mod_finder (Busca_inteligente) (64.68KB) (3.38%)
    1.40ms
    1 x afterRenderComponent com_content (18.86KB) (2.8%)
    1.16ms
    1 x afterRoute (89.95KB) (2.68%)
    1.11ms
    1 x Before Access::getAssetRules (id:4683 name:com_content.article.7747) (514.65KB) (2.35%)
    973μs
    1 x afterLoad (85.16KB) (1.92%)
    795μs
    1 x beforeRenderModule mod_articles_category (Banco de Circuitos) (9.27KB) (1.63%)
    673μs
    1 x beforeRenderComponent com_content (100.41KB) (1.43%)
    592μs
    1 x afterRenderRawModule mod_articles_category (Banco de Circuitos) (15.43KB) (1.3%)
    537μs
    1 x After Access::preloadComponents (all components) (107.06KB) (1.15%)
    476μs
    1 x Before Access::preloadComponents (all components) (33.45KB) (0.75%)
    310μs
    1 x beforeRenderModule mod_finder (Busca_inteligente) (6.64KB) (0.5%)
    206μs
    1 x afterRenderModule mod_articles_category (Banco de Circuitos) (5.47KB) (0.25%)
    104μs
    1 x beforeRenderRawModule mod_finder (Busca_inteligente) (5.9KB) (0.22%)
    92μs
    1 x afterDispatch (2.28KB) (0.16%)
    65μs
    1 x afterRenderModule mod_finder (Busca_inteligente) (4.44KB) (0.13%)
    54μs
    1 x After Access::getAssetRules (id:4683 name:com_content.article.7747) (7.38KB) (0.09%)
    37μs
    1 x Before Access::preloadPermissions (com_content) (1.57KB) (0.02%)
    9μs
14 statements were executed9.62ms1.5MB
  • SELECT @@SESSION.sql_mode;33μs968B/libraries/src/Session/MetadataManager.php:184Copy
  • SELECT `session_id` FROM `incbmx_session` WHERE `session_id` = :session_id LIMIT 180μs1.3KBParams/libraries/src/Session/MetadataManager.php:187Copy
  • INSERT INTO `incbmx_session` (`session_id`,`guest`,`time`,`userid`,`username`,`client_id`) VALUES (:session_id, :guest, :time, :user_id, :username, :client_id)197μs944BParams/libraries/src/Session/MetadataManager.php:260Copy
  • SELECT `id`,`rules` FROM `incbmx_viewlevels`50μs656B/libraries/src/Access/Access.php:955Copy
  • SELECT `b`.`id` FROM `incbmx_usergroups` AS `a` LEFT JOIN `incbmx_usergroups` AS `b` ON `b`.`lft` <= `a`.`lft` AND `b`.`rgt` >= `a`.`rgt` WHERE `a`.`id` = :guest73μs1.64KBParams/libraries/src/Access/Access.php:868Copy
  • SELECT `c`.`id`,`c`.`asset_id`,`c`.`access`,`c`.`alias`,`c`.`checked_out`,`c`.`checked_out_time`,`c`.`created_time`,`c`.`created_user_id`,`c`.`description`,`c`.`extension`,`c`.`hits`,`c`.`language`,`c`.`level`,`c`.`lft`,`c`.`metadata`,`c`.`metadesc`,`c`.`metakey`,`c`.`modified_time`,`c`.`note`,`c`.`params`,`c`.`parent_id`,`c`.`path`,`c`.`published`,`c`.`rgt`,`c`.`title`,`c`.`modified_user_id`,`c`.`version`, CASE WHEN CHAR_LENGTH(`c`.`alias`) != 0 THEN CONCAT_WS(':', `c`.`id`, `c`.`alias`) ELSE `c`.`id` END as `slug` FROM `incbmx_categories` AS `s` INNER JOIN `incbmx_categories` AS `c` ON (`s`.`lft` <= `c`.`lft` AND `c`.`lft` < `s`.`rgt`) OR (`c`.`lft` < `s`.`lft` AND `s`.`rgt` < `c`.`rgt`) WHERE (`c`.`extension` = :extension OR `c`.`extension` = 'system') AND `c`.`published` = 1 AND `s`.`id` = :id ORDER BY `c`.`lft`197μs3.86KBParams/libraries/src/Categories/Categories.php:375Copy
  • SELECT `id`,`name`,`rules`,`parent_id` FROM `incbmx_assets` WHERE `name` IN (:preparedArray1,:preparedArray2,:preparedArray3,:preparedArray4,:preparedArray5,:preparedArray6,:preparedArray7,:preparedArray8,:preparedArray9,:preparedArray10,:preparedArray11,:preparedArray12,:preparedArray13,:preparedArray14,:preparedArray15,:preparedArray16,:preparedArray17,:preparedArray18,:preparedArray19,:preparedArray20,:preparedArray21,:preparedArray22,:preparedArray23,:preparedArray24,:preparedArray25,:preparedArray26,:preparedArray27,:preparedArray28,:preparedArray29,:preparedArray30,:preparedArray31,:preparedArray32,:preparedArray33,:preparedArray34,:preparedArray35,:preparedArray36,:preparedArray37,:preparedArray38,:preparedArray39)324μs7.44KBParams/libraries/src/Access/Access.php:357Copy
  • SELECT `id`,`name`,`rules`,`parent_id` FROM `incbmx_assets` WHERE `name` LIKE :asset OR `name` = :extension OR `parent_id` = 07.84ms1.48MBParams/libraries/src/Access/Access.php:301Copy
  • SHOW FULL COLUMNS FROM `incbmx_content`322μs2.39KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:587Copy
  • UPDATE `incbmx_content` SET `hits` = (`hits` + 1) WHERE `id` = '7747'118μs48B/libraries/src/Table/Table.php:1348Copy
  • SELECT `name`,`element` FROM `incbmx_extensions` WHERE `type` = 'plugin' AND `folder` = 'finder' AND `enabled` = 1160μs608B/administrator/components/com_finder/src/Helper/LanguageHelper.php:135Copy
  • SELECT `title` FROM `incbmx_finder_taxonomy` WHERE `parent_id` = 1 AND `state` = 1 AND `access` IN (1,5)93μs648B/administrator/components/com_finder/src/Indexer/Taxonomy.php:325Copy
  • SELECT * FROM `incbmx_schemaorg` WHERE `itemId` = :itemId AND `context` = :context64μs1.55KBParams/plugins/system/schemaorg/src/Extension/Schemaorg.php:403Copy
  • 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` = 171μs1.37KBParams/administrator/components/com_scheduler/src/Model/TasksModel.php:465Copy