{"id":4576,"date":"2026-11-01T17:06:00","date_gmt":"2026-11-01T16:06:00","guid":{"rendered":"https:\/\/ordi-tech.fr\/?page_id=4576"},"modified":"2026-11-01T17:08:18","modified_gmt":"2026-11-01T16:08:18","slug":"traceur-de-courbes-pour-composants","status":"publish","type":"page","link":"https:\/\/ordi-tech.fr\/index.php\/traceur-de-courbes-pour-composants\/","title":{"rendered":"Traceur de courbes pour composants"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Comment r\u00e9aliser un traceur de courbes pour tester les composants \u00e9lectroniques en mode dynamique avec un oscilloscope ? Et bien c&rsquo;est ce que nous allons voir. Il ne faut que quelques composants : un transformateur 250V-12V, quelques r\u00e9sistances fixes, une r\u00e9sistance ajustable, deux prises ch\u00e2ssis coaxiales et 2 prises ch\u00e2ssis banane, le tout rang\u00e9 proprement dans une boite !!!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Je me suis inspir\u00e9 du sch\u00e9ma du testeur de composants int\u00e9gr\u00e9 \u00e0 mon oscilloscope Hameg HM-307 :<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Screenshot_20220611_053915.png\" alt=\"\"\/><figcaption class=\"wp-element-caption\">la partie alimentation<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Screenshot_20220611_053857.png\" alt=\"\"\/><figcaption class=\"wp-element-caption\">la partie testeur<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Voici le sch\u00e9ma simplifi\u00e9 :<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/traceur_courbe_composants.png\" alt=\"\"\/><figcaption class=\"wp-element-caption\">La r\u00e9sistance ajustable de 150k permet de calibrer le nombre de V\/div. du testeur en comparaison avec celui int\u00e9gr\u00e9 \u00e0 l&rsquo;oscilloscope Hameg HM307&#8230;<\/figcaption><\/figure>\n\n\n\n<p><p style=\"text-align: justify;\">Ce petit montage est surnomm\u00e9 \u00ab\u00a0Octopus\u00a0\u00bb car on le trouve fr\u00e9quemment dans les ateliers d&rsquo;\u00e9lectroniciens sous forme de petite bo\u00eete de d\u00e9rivations avec des fils qui en sortent, ce qui s&rsquo;apparente \u00e0 une pieuvre&#8230; Vous trouverez des centaines d&rsquo;Octopus plus ou moins sophistiqu\u00e9es sur le Web, comme ces quelques exemples :<\/p><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" data-id=\"1335\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/octopus_closeup.jpg\" alt=\"\" class=\"wp-image-1335\"\/><figcaption class=\"wp-element-caption\">dans une boite de p\u00e2t\u00e9e pour chats<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" data-id=\"1336\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/octopus_open.jpg\" alt=\"\" class=\"wp-image-1336\"\/><figcaption class=\"wp-element-caption\">\u00e0 l&rsquo;int\u00e9rieur, comme dans une bo\u00eete de d\u00e9rivation<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" data-id=\"1338\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/DSCN7153.jpg\" alt=\"\" class=\"wp-image-1338\"\/><figcaption class=\"wp-element-caption\">Version un peu plus \u00e9labor\u00e9e avec s\u00e9lecteur de tensions<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" data-id=\"1334\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/DSCN7160.jpg\" alt=\"\" class=\"wp-image-1334\"\/><figcaption class=\"wp-element-caption\">\u00e0 l&rsquo;int\u00e9rieur du coffret<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" data-id=\"1339\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/IMG_6206-1.jpg\" alt=\"\" class=\"wp-image-1339\"\/><figcaption class=\"wp-element-caption\">version sur circuit imprim\u00e9<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/My_Octopus.png\" alt=\"\" class=\"wp-image-1416\"\/><figcaption class=\"wp-element-caption\">Mon prototype Octopus<\/figcaption><\/figure>\n\n\n\n<p><p style=\"text-align: justify;\">La courbe repr\u00e9sentera l&rsquo;intensit\u00e9 (I sur l&rsquo;axe y, donc sur l&rsquo;entr\u00e9e Y ou CH2 de l&rsquo;oscilloscope) par rapport \u00e0 la tension (V sur l&rsquo;axe x, donc sur l&rsquo;entr\u00e9e X ou CH1 de l&rsquo;oscilloscope). L&rsquo;appareil devra \u00eatre mis en position X-Y. <br \/>Pour visualiser la courbe du composant sur un simple trace avec CT (Component Tester), pas besoin d&rsquo;Octopus, il faudra juste appuyer sur le bouton GND\/CT apr\u00e8s avoir connect\u00e9 le composant entre les 2 prises CT&#8230; Aucun r\u00e9glage n&rsquo;est possible au niveau de l&rsquo;\u00e9chelle sur le Hameg HM 307, ce qui explique pourquoi la courbe de l&rsquo;inductance appara\u00eet comme un trait alors que sur le Tektronix TAS 465 avec l&rsquo;\u00e9chelle de 20mV\/div. on voit bien une ellipse&#8230;<br \/><\/p><img decoding=\"async\" class=\"wp-image-1400\" style=\"width: 200px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/courbe.png\" alt=\"\"><\/p>\n\n\n\n<p><p style=\"text-align: justify;\">Voici quelques exemples de tests de composants avec leurs caract\u00e9ristiques sous tension :<\/p><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Dans la notice<img decoding=\"async\" class=\"wp-image-1390\" style=\"width: 40px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/blanc.png\" alt=\"\">Sur le HM 307<img decoding=\"async\" class=\"wp-image-1390\" style=\"width: 40px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/blanc.png\" alt=\"\"> Sur le TAS 465<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le circuit ouvert :<br><img decoding=\"async\" class=\"wp-image-1345\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/circuit_ouvert.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1370\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Circuit_ouvert_HM307.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1369\" style=\"width: 156px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Circuit_ouvert_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le court-circuit :<br><img decoding=\"async\" class=\"wp-image-1344\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/court-circuit.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1372\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Court-circuit_HM307.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1373\" style=\"width: 156px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Court-circuit_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La r\u00e9sistance de 150Ohm :<br><img decoding=\"async\" class=\"wp-image-1412\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/resistance_150.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1374\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Resistance_HM307.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1375\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Resistance_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;inductance :<br><img decoding=\"async\" class=\"wp-image-1349\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/inductance.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1379\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/inductance_HM307-1.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1377\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/inductance_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le condensateur :<br><img decoding=\"async\" class=\"wp-image-1351\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/condensateur.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1367\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/capa_1uF_HM307.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1368\" style=\"width: 156px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/capa_1uF_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La diode au silicium :<br><img decoding=\"async\" class=\"wp-image-1353\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/diode_silicium.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1380\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Diode_silicium_HM307.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1381\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Diode_silicium_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La diode au germanium :<br><img decoding=\"async\" class=\"wp-image-1354\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/diode_germanium.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1414\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Diode_germanium_HM307.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1415\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Diode_germanium_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La diode Zener :<br><img decoding=\"async\" class=\"wp-image-1397\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/diode_zener.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1382\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Diode_zener_HM307.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1383\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Diode_zener_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La jonction \u00c9metteur &#8211; Collecteur d&rsquo;un transistor au silicium<br><img decoding=\"async\" class=\"wp-image-1387\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/transistor_E_C-1.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1384\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Transistor_EC_HM307.png\" alt=\"\"> <img decoding=\"async\" class=\"wp-image-1385\" style=\"width: 150px;\" src=\"https:\/\/ordi-tech.fr\/wp-content\/uploads\/2022\/06\/Transistor_EC_TAS465.png\" alt=\"\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On remarque que la trace du signal sur le vieil oscilloscope Hameg est de travers, ceci est d\u00fb au fait qu&rsquo;il a \u00e9t\u00e9 beaucoup transport\u00e9 sans m\u00e9nagement pendant des ann\u00e9es mais ceci est \u00ab\u00a0r\u00e9parable\u00a0\u00bb en l&rsquo;ouvrant, en faisant pivoter le tube et en le collant une fois bien en place car le quadrillage est plac\u00e9 devant l&rsquo;\u00e9cran cathodique et lui ne bougera pas&#8230;<br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comment r\u00e9aliser un traceur de courbes pour tester les composants \u00e9lectroniques en mode dynamique avec un oscilloscope ? Et bien c&rsquo;est ce que nous allons voir. Il ne faut que quelques composants : un transformateur 250V-12V, quelques r\u00e9sistances fixes, une r\u00e9sistance ajustable, deux prises ch\u00e2ssis coaxiales et 2 prises ch\u00e2ssis banane, le tout rang\u00e9 proprement &hellip; <a href=\"https:\/\/ordi-tech.fr\/index.php\/traceur-de-courbes-pour-composants\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Traceur de courbes pour composants<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4576","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ordi-tech.fr\/index.php\/wp-json\/wp\/v2\/pages\/4576","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ordi-tech.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ordi-tech.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ordi-tech.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ordi-tech.fr\/index.php\/wp-json\/wp\/v2\/comments?post=4576"}],"version-history":[{"count":2,"href":"https:\/\/ordi-tech.fr\/index.php\/wp-json\/wp\/v2\/pages\/4576\/revisions"}],"predecessor-version":[{"id":4581,"href":"https:\/\/ordi-tech.fr\/index.php\/wp-json\/wp\/v2\/pages\/4576\/revisions\/4581"}],"wp:attachment":[{"href":"https:\/\/ordi-tech.fr\/index.php\/wp-json\/wp\/v2\/media?parent=4576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}