{"id":25886,"date":"2018-10-11T13:45:58","date_gmt":"2018-10-11T11:45:58","guid":{"rendered":"https:\/\/www.iemn.fr\/?page_id=25886"},"modified":"2019-02-11T14:54:21","modified_gmt":"2019-02-11T12:54:21","slug":"modelling-gan","status":"publish","type":"page","link":"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/modelling-gan","title":{"rendered":"Modelling of GaN-HEMT for high efficiency power converters"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_submenu  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_44_h443mbfhehrl\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:360px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : PUISSANCE<\/ls-layer><\/div><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance2.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance2.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance2-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance2-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance2-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance2-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance2-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:360px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : PUISSANCE<\/ls-layer><\/div><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance3.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance3.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance3-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance3-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance3-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance3-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_puissance3-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:360px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : PUISSANCE<\/ls-layer><\/div><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/12\/sliders_groupe_puissance_v4.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/12\/sliders_groupe_puissance_v4.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/12\/sliders_groupe_puissance_v4-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/12\/sliders_groupe_puissance_v4-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/12\/sliders_groupe_puissance_v4-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/12\/sliders_groupe_puissance_v4-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/12\/sliders_groupe_puissance_v4-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:360px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : PUISSANCE<\/ls-layer><\/div><\/div><\/div>\n<div id='sub_menu1'  class='av-submenu-container av-jrqfadqy-807d5a51dd3616f0d00a06e9b2d077f0 footer_color  avia-builder-el-1  el_after_av_layerslider  el_before_av_heading  submenu-not-first container_wrap sidebar_right' style='z-index:301' ><div class='container av-menu-mobile-disabled av-submenu-pos-left'><ul id='av-custom-submenu-1' class='av-subnav-menu' role='menu'>\n<li class='menu-item av-av_submenu_item-ab3f40e4910f50d785e708c5ec54697a menu-item-top-level menu-item-top-level-1' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Introduction<\/span><\/a><\/li>\n<li class='menu-item av-av_submenu_item-3762c67ab807f47fd80996be2a86bd89 menu-item-top-level menu-item-top-level-2' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/members'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Members<\/span><\/a><\/li>\n<li class='menu-item av-av_submenu_item-664aefac49ff25646967d270a040f9d0 menu-item-top-level menu-item-top-level-3' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Research<\/span><\/a><\/li>\n<li class='menu-item av-kbk05k-5c5944fac313107f26dddee0ba9e2d5b menu-item-top-level menu-item-top-level-4' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Other groups<\/span><\/a><\/li>\n<\/ul><\/div><\/div><div id='after_submenu_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-25886'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-880ad1a29ffbb20943c0e3c6e05a833b\">\n#top .av-special-heading.av-av_heading-880ad1a29ffbb20943c0e3c6e05a833b{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-880ad1a29ffbb20943c0e3c6e05a833b .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-880ad1a29ffbb20943c0e3c6e05a833b .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-880ad1a29ffbb20943c0e3c6e05a833b av-special-heading-h3  avia-builder-el-2  el_after_av_submenu  el_before_av_textblock  avia-builder-el-first'><h3 class='av-special-heading-tag'  itemprop=\"headline\"  >Modelling of GaN-HEMT for high efficiency power converters<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<section  class='av_textblock_section av-jn4irdqo-c13f47b041ff72402b9afb7b449ba5cb'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>A novel methodology combining both Sij measurements (usually dedicated to low power and high frequency devices) and high voltage\/high current probes is being developed to provide accurate non-linear thermo-electrical models of AlGaN\/GaN power switches [1-2]. It is targeted to take benefit of this new process flow and subsequent reliable models to design power converters with switching frequency up to 1MHz-10MHz. These operating conditions make it possible to downscale substantially the circuits needed for DC-DC conversion while maintaining excellent efficiency. The very first results are very encouraging since a complete non-linear model, taking into account the device self-heating, has been proposed and validated through many measurement at the device and the circuit levels.<\/p>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-19ohxz2-fb37641c9fffd8694f1154851d9a89a5\">\n.flex_column.av-19ohxz2-fb37641c9fffd8694f1154851d9a89a5{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-19ohxz2-fb37641c9fffd8694f1154851d9a89a5 av_one_half  avia-builder-el-4  el_after_av_textblock  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jn4iv6t2-d6617783dc065e189ebb2306931a0b90'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_25889\" style=\"width: 754px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6a-1.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25889\" class=\"wp-image-25889 size-full\" title=\"Fig.6a: Experimental high voltage\/current S-parameters test bench\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6a-1.png\" alt=\"Fig.6a: Experimental high voltage\/current S-parameters test bench\" width=\"744\" height=\"429\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6a-1.png 744w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6a-1-300x173.png 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6a-1-705x407.png 705w\" sizes=\"auto, (max-width: 744px) 100vw, 744px\" \/><\/a><p id=\"caption-attachment-25889\" class=\"wp-caption-text\">Fig.6a: Experimental high voltage\/current S-parameters test bench<\/p><\/div>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-wbo9tq-909d1ecd5ba7f68acfffe809420fc1ad\">\n.flex_column.av-wbo9tq-909d1ecd5ba7f68acfffe809420fc1ad{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-wbo9tq-909d1ecd5ba7f68acfffe809420fc1ad av_one_half  avia-builder-el-6  el_after_av_one_half  el_before_av_textblock  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jn4iyrbk-e9e216c9ca803e782a7420d35db6fbca'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_25892\" style=\"width: 750px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6b-1.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25892\" class=\"wp-image-25892 size-full\" title=\" Fig. 6b: Extracted capacitances versus voltage at 10 MHz\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6b-1.png\" alt=\" Fig. 6b: Extracted capacitances versus voltage at 10 MHz\" width=\"740\" height=\"457\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6b-1.png 740w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6b-1-300x185.png 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/gan_hemt_fig_6b-1-705x435.png 705w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/a><p id=\"caption-attachment-25892\" class=\"wp-caption-text\">Fig. 6b: Extracted capacitances versus voltage at 10 MHz<\/p><\/div>\n<\/div><\/section><\/div>\n<section  class='av_textblock_section av-jn4itz9h-bfab315cae7789ae467543dcb746c7d6'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>In this context, a set of new characterization circuits were designed and fabricated, such as high voltage \/ high current bias tees, coaxial open and short standards and associated small-signal equivalent parameters. The double pulse technique was implemented at the circuit level to validate both the transistor model and the electromagnetic behavior of the PCB routes at such high frequency and current values. These models will be used for the fabrication of hybrid convertors in collaboration with L2EP.<\/p>\n<p>In the future integrated convertors are envisaged. For this purpose, normally-off transistors and passive element such as inductances operating at high frequency and withstanding high current will be developed.<\/p>\n<hr \/>\n<p><em>[1] PACE L. et al, PCIM Europe Conference, Nuremberg, Germany, June 2018<\/em><br \/>\n<em>[2] PACE L. et al, SGE, Nancy, France, July, 2018<\/em><\/p>\n<\/div><\/section>\n<div  class='av_promobox av-js09a3uo-95c6a6ac9fb24e9e4d24e2dec1561c1b avia-button-no  avia-builder-el-9  el_after_av_textblock  avia-builder-el-last'><div class='avia-promocontent'><p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_font_icon-46b4270e2aa10b934ea9f40492984a14\">\n.av_font_icon.av-av_font_icon-46b4270e2aa10b934ea9f40492984a14 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-av_font_icon-46b4270e2aa10b934ea9f40492984a14 avia_animate_when_visible av-icon-style- avia-icon-pos-left av-no-color avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue87f' data-av_iconfont='entypo-fontello' ><\/span><\/span><\/p>\n<p><strong>PUISSANCE Group : OTHER ACTIVITIES<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/algan\/\">AlGaN\/GaN HEMT thermal modeling and characterization<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/measurement-above-110ghz\/\">Measurement above 110GHz<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/nanoribbon\/\">Nanoribbon-channel AlGaN\/GaN HEMTs<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/new-technological-routes\/\">New technological routes to improve thermal managements in GaN HEMTs<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/power-performance\/\">Power performance at 40GHz of AlGaN\/GaN HEMTs on silicon substrate<\/a><\/li>\n<li><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/groupe-puissance\/research\/temperature-monitoring\/\">Temperature monitoring of operating AlGaN\/GaN HEMTs<\/a><\/li>\n<\/ul>\n<p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":25963,"menu_order":20,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-25886","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25886","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=25886"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25886\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25963"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=25886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}