Convertidor logarítmico rápido (CIR17076S)

Written by: Newton C. Braga
Category: Banco de circuitos

 

Encontrado en una documentación antigua, este circuito utiliza amplificadores de la época, poco común hoy en día. Al lado del diagrama, la fórmula para calcular los componentes.

 

Convertidor logarítmico rápido
Convertidor logarítmico rápido

 

 

 

pcbway2025

Buscador de Datasheets


N° de Componente 

Banco de Circuitos

J! InfoRequestSessionProfileQueries21
Settings18.86MBMemory Usage46.22msRequest Duration
Theme
Open Button Position
Hide Empty Tabs
Autoshow
Reset to defaults
Joomla! Version5.3.2
PHP Version8.3.24
Identityguest
Response200
Templatecassiopeia
Database
Server
mysql
Version
10.5.27-MariaDB
Collation
latin1_swedish_ci
Conn Collation
utf8mb4_general_ci
$_GET
[]
$_POST
[]
$_SESSION
array:1 [ "joomla" => "***redacted***" ]
$_COOKIE
[]
$_SERVER
array:51 [ "USER" => "apache" "HOME" => "/usr/share/httpd" "SCRIPT_NAME" => "/index.php" "RE...
session
array:3 [ "counter" => 1 "timer" => array:3 [ "start" => 1755812562 "last" => 1755812562...
registry
array:3 [ "data" => [] "initialized" => false "separator" => "." ]
user
array:21 [ "id" => 0 "name" => null "username" => null "email" => null "password" => "***r...
  • afterLoad (83.57KB) (190μs)
  • afterInitialise (1.13MB) (4.59ms)
  • afterRoute (90.63KB) (935μs)
  • beforeRenderComponent com_content (100.52KB) (578μs)
  • Before Access::preloadComponents (all components) (33.13KB) (254μs)
  • After Access::preloadComponents (all components) (113.49KB) (768μs)
  • Before Access::preloadPermissions (com_content) (1.57KB) (9μs)
  • After Access::preloadPermissions (com_content) (16.25MB) (24.93ms)
  • Before Access::getAssetRules (id:19852 name:com_content.article.23673) (514.65KB) (908μs)
  • After Access::getAssetRules (id:19852 name:com_content.article.23673) (7.38KB) (40μs)
  • afterRenderComponent com_content (309.34KB) (6.1ms)
  • afterDispatch (2.25KB) (41μs)
  • beforeRenderRawModule mod_articles_category (Banco de Circuitos) (359.36KB) (1.63ms)
  • afterRenderRawModule mod_articles_category (Banco de Circuitos) (79.5KB) (317μs)
  • beforeRenderRawModule mod_finder (Busca_inteligente) (5.9KB) (95μs)
  • afterRenderRawModule mod_finder (Busca_inteligente) (54.63KB) (815μs)
  • beforeRenderModule mod_articles_category (Banco de Circuitos) (9.98KB) (655μs)
  • afterRenderModule mod_articles_category (Banco de Circuitos) (5.47KB) (60μs)
  • beforeRenderModule mod_finder (Busca_inteligente) (6.39KB) (202μs)
  • afterRenderModule mod_finder (Busca_inteligente) (4.44KB) (52μs)
  • afterRender (251.42KB) (2.97ms)
  • 1 x After Access::preloadPermissions (com_content) (16.25MB) (53.93%)
    24.93ms
    1 x afterRenderComponent com_content (309.34KB) (13.21%)
    6.10ms
    1 x afterInitialise (1.13MB) (9.92%)
    4.59ms
    1 x afterRender (251.42KB) (6.43%)
    2.97ms
    1 x beforeRenderRawModule mod_articles_category (Banco de Circuitos) (359.36KB) (3.52%)
    1.63ms
    1 x afterRoute (90.63KB) (2.02%)
    935μs
    1 x Before Access::getAssetRules (id:19852 name:com_content.article.23673) (514.65KB) (1.96%)
    908μs
    1 x afterRenderRawModule mod_finder (Busca_inteligente) (54.63KB) (1.76%)
    815μs
    1 x After Access::preloadComponents (all components) (113.49KB) (1.66%)
    768μs
    1 x beforeRenderModule mod_articles_category (Banco de Circuitos) (9.98KB) (1.42%)
    655μs
    1 x beforeRenderComponent com_content (100.52KB) (1.25%)
    578μs
    1 x afterRenderRawModule mod_articles_category (Banco de Circuitos) (79.5KB) (0.69%)
    317μs
    1 x Before Access::preloadComponents (all components) (33.13KB) (0.55%)
    254μs
    1 x beforeRenderModule mod_finder (Busca_inteligente) (6.39KB) (0.44%)
    202μs
    1 x afterLoad (83.57KB) (0.41%)
    190μs
    1 x beforeRenderRawModule mod_finder (Busca_inteligente) (5.9KB) (0.21%)
    95μs
    1 x afterRenderModule mod_articles_category (Banco de Circuitos) (5.47KB) (0.13%)
    60μs
    1 x afterRenderModule mod_finder (Busca_inteligente) (4.44KB) (0.11%)
    52μs
    1 x afterDispatch (2.25KB) (0.09%)
    41μs
    1 x After Access::getAssetRules (id:19852 name:com_content.article.23673) (7.38KB) (0.09%)
    40μs
    1 x Before Access::preloadPermissions (com_content) (1.57KB) (0.02%)
    9μs
21 statements were executed, 5 of which were duplicates, 16 unique14.28ms1.53MB
UniquesDuplicates 1Duplicates 2
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  • 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`177μs3.86KBParams/libraries/src/Categories/Categories.php:375Copy
  • SELECT `alias` FROM `incbmx_content` WHERE `id` = :id68μs1.31KBParams/components/com_content/src/Service/Router.php:289Copy
  • 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)569μs7.44KBParams/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` = 010.34ms1.48MBParams/libraries/src/Access/Access.php:301Copy
  • SHOW FULL COLUMNS FROM `incbmx_content`363μs1.77KB/libraries/vendor/joomla/database/src/Mysqli/MysqliDriver.php:539Copy
  • UPDATE `incbmx_content` SET `hits` = (`hits` + 1) WHERE `id` = '23673'129μs48B/libraries/src/Table/Table.php:1348Copy
  • 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)157μs6.12KBParams/components/com_content/src/Model/ArticleModel.php:215Copy
  • 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`.`access` IN (:preparedArray1,:preparedArray2) AND `c`.`published` = 1 AND `s`.`id` = :id ORDER BY `c`.`lft`281μs3.91KBParams/libraries/src/Categories/Categories.php:375Copy
  • SELECT `m`.`tag_id`,`t`.* FROM `incbmx_contentitem_tag_map` AS `m` INNER JOIN `incbmx_tags` AS `t` ON `m`.`tag_id` = `t`.`id` WHERE `m`.`type_alias` = :contentType AND `m`.`content_item_id` = :id AND `t`.`published` = 1 AND `t`.`access` IN (:preparedArray1,:preparedArray2)373μs3.97KBParams/libraries/src/Helper/TagsHelper.php:388Copy
  • 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`.`access` IN (:preparedArray1,:preparedArray2) AND `c`.`published` = 1 AND `s`.`id` = :id ORDER BY `c`.`lft`240μs3.91KBParams/libraries/src/Categories/Categories.php:375Copy
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  • SELECT `title` FROM `incbmx_finder_taxonomy` WHERE `parent_id` = 1 AND `state` = 1 AND `access` IN (1,5)102μs648B/administrator/components/com_finder/src/Indexer/Taxonomy.php:325Copy
  • SELECT * FROM `incbmx_schemaorg` WHERE `itemId` = :itemId AND `context` = :context66μs1.55KBParams/plugins/system/schemaorg/src/Extension/Schemaorg.php:406Copy
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