diff --git a/elements/convertisseur/bloc/ac1_ac1.elmt b/elements/convertisseur/bloc/ac1_ac1.elmt
new file mode 100644
index 000000000..4134bf4de
--- /dev/null
+++ b/elements/convertisseur/bloc/ac1_ac1.elmt
@@ -0,0 +1,21 @@
+<definition width="50" version="0.1" hotspot_x="25" hotspot_y="25" height="40" type="element" orientation="dnnn" >
+    <names>
+        <name lang="fr" >Alternatif monophasé > Alternatif monophasé</name>
+    </names>
+    <description>
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-10" x1="-15" y2="-10" x2="-20" />
+        <polygon x4="-15" antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-20" x1="-15" y2="-20" x2="15" y3="10" x3="15" y4="10" />
+        <arc width="5" x="-7.5" y="-17.5" antialias="true" height="5" style="line-style:normal;line-weight:normal;filling:none;color:black" start="0" angle="-175" />
+        <arc width="5" x="7.5" y="2.5" antialias="true" height="5" style="line-style:normal;line-weight:normal;filling:none;color:black" start="0" angle="-175" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="0" x1="20" y2="0" x2="15" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-10" x1="15" y2="-10" x2="20" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="0" x1="-20" y2="0" x2="-15" />
+        <arc width="5" x="-12.5" y="-17.5" antialias="true" height="5" style="line-style:normal;line-weight:normal;filling:none;color:black" start="180" angle="-175" />
+        <arc width="5" x="2.5" y="2.5" antialias="true" height="5" style="line-style:normal;line-weight:normal;filling:none;color:black" start="180" angle="-175" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-19.5" x1="14.5" y2="9.5" x2="-14.5" />
+        <terminal x="-21" y="-10" orientation="w" />
+        <terminal x="-21" y="0" orientation="w" />
+        <terminal x="21" y="-10" orientation="e" />
+        <terminal x="21" y="0" orientation="e" />
+    </description>
+</definition>
diff --git a/elements/convertisseur/bloc/ac1_dc.elmt b/elements/convertisseur/bloc/ac1_dc.elmt
new file mode 100644
index 000000000..805b89df0
--- /dev/null
+++ b/elements/convertisseur/bloc/ac1_dc.elmt
@@ -0,0 +1,23 @@
+<definition width="50" version="0.1" hotspot_x="25" hotspot_y="25" height="40" type="element" orientation="dnnn" >
+    <names>
+        <name lang="fr" >Alternatif monophasé > Continu</name>
+    </names>
+    <description>
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-10" x1="-15" y2="-10" x2="-20" />
+        <polygon x4="-15" antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-20" x1="-15" y2="-20" x2="15" y3="10" x3="15" y4="10" />
+        <arc width="5" x="-7.5" y="-17.5" antialias="true" height="5" style="line-style:normal;line-weight:normal;filling:none;color:black" start="0" angle="-175" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="0" x1="20" y2="0" x2="15" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-10" x1="15" y2="-10" x2="20" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="0" x1="-20" y2="0" x2="-15" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="4" x1="11" y2="4" x2="12.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="4" x1="8" y2="4" x2="9.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="4" x1="5" y2="4" x2="6.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="6" x1="5" y2="6" x2="12.5" />
+        <arc width="5" x="-12.5" y="-17.5" antialias="true" height="5" style="line-style:normal;line-weight:normal;filling:none;color:black" start="180" angle="-175" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-19.5" x1="14.5" y2="9.5" x2="-14.5" />
+        <terminal x="-21" y="-10" orientation="w" />
+        <terminal x="-21" y="0" orientation="w" />
+        <terminal x="21" y="-10" orientation="e" />
+        <terminal x="21" y="0" orientation="e" />
+    </description>
+</definition>
diff --git a/elements/convertisseur/bloc/dc_ac1.elmt b/elements/convertisseur/bloc/dc_ac1.elmt
new file mode 100644
index 000000000..6f9edfdb2
--- /dev/null
+++ b/elements/convertisseur/bloc/dc_ac1.elmt
@@ -0,0 +1,23 @@
+<definition width="50" version="0.1" hotspot_x="25" hotspot_y="25" height="40" type="element" orientation="dnnn" >
+    <names>
+        <name lang="fr" >Continu > Alternatif monophasé</name>
+    </names>
+    <description>
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-10" x1="-15" y2="-10" x2="-20" />
+        <polygon x4="-15" antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-20" x1="-15" y2="-20" x2="15" y3="10" x3="15" y4="10" />
+        <arc width="5" x="7.5" y="2.5" antialias="true" height="5" style="line-style:normal;line-weight:normal;filling:none;color:black" start="0" angle="-175" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="0" x1="20" y2="0" x2="15" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-10" x1="15" y2="-10" x2="20" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="0" x1="-20" y2="0" x2="-15" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-17" x1="-11" y2="-17" x2="-12.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-17" x1="-8" y2="-17" x2="-9.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-17" x1="-5" y2="-17" x2="-6.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-15" x1="-5" y2="-15" x2="-12.5" />
+        <arc width="5" x="2.5" y="2.5" antialias="true" height="5" style="line-style:normal;line-weight:normal;filling:none;color:black" start="180" angle="-175" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-19.5" x1="14.5" y2="9.5" x2="-14.5" />
+        <terminal x="-21" y="-10" orientation="w" />
+        <terminal x="-21" y="0" orientation="w" />
+        <terminal x="21" y="-10" orientation="e" />
+        <terminal x="21" y="0" orientation="e" />
+    </description>
+</definition>
diff --git a/elements/convertisseur/bloc/dc_dc.elmt b/elements/convertisseur/bloc/dc_dc.elmt
new file mode 100644
index 000000000..c48dcce9d
--- /dev/null
+++ b/elements/convertisseur/bloc/dc_dc.elmt
@@ -0,0 +1,25 @@
+<definition width="50" version="0.1" hotspot_x="25" hotspot_y="25" height="40" type="element" orientation="dnnn" >
+    <names>
+        <name lang="fr" >Continu > Continu</name>
+    </names>
+    <description>
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-10" x1="-15" y2="-10" x2="-20" />
+        <polygon x4="-15" antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-20" x1="-15" y2="-20" x2="15" y3="10" x3="15" y4="10" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="0" x1="20" y2="0" x2="15" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-10" x1="15" y2="-10" x2="20" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="0" x1="-20" y2="0" x2="-15" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="4" x1="11" y2="4" x2="12.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="4" x1="8" y2="4" x2="9.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="4" x1="5" y2="4" x2="6.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="6" x1="5" y2="6" x2="12.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-17" x1="-11" y2="-17" x2="-12.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-17" x1="-8" y2="-17" x2="-9.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-17" x1="-5" y2="-17" x2="-6.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-15" x1="-5" y2="-15" x2="-12.5" />
+        <line antialias="false" style="line-style:normal;line-weight:normal;filling:none;color:black" y1="-19.5" x1="14.5" y2="9.5" x2="-14.5" />
+        <terminal x="-21" y="-10" orientation="w" />
+        <terminal x="-21" y="0" orientation="w" />
+        <terminal x="21" y="-10" orientation="e" />
+        <terminal x="21" y="0" orientation="e" />
+    </description>
+</definition>
diff --git a/elements/convertisseur/bloc/qet_directory b/elements/convertisseur/bloc/qet_directory
new file mode 100644
index 000000000..8576e31aa
--- /dev/null
+++ b/elements/convertisseur/bloc/qet_directory
@@ -0,0 +1,6 @@
+<qet-directory>
+    <names>
+        <name lang="en" >Box</name>
+        <name lang="fr" >Bloc</name>
+    </names>
+</qet-directory>
diff --git a/elements/convertisseur/qet_directory b/elements/convertisseur/qet_directory
new file mode 100644
index 000000000..2eab4ad6d
--- /dev/null
+++ b/elements/convertisseur/qet_directory
@@ -0,0 +1,5 @@
+<qet-directory>
+    <names>
+        <name lang="fr" >Convertisseur</name>
+    </names>
+</qet-directory>