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--- lab_electrical_engineering:3_rectifier [2026/03/03 05:01] – angelegt mexleadmin
+++ lab_electrical_engineering:3_rectifier [2026/04/03 01:29] (current) – mexleadmin
@@ Line 14: / Line 14: @@
 </WRAP></WRAP>
-===== Preparation for the lab =====
+===== Practical Example Rectifier (Diode) =====
+You have an electric vehicle and want to charge the battery from an AC grid voltage. An on-board charger (OBC) of an electric vehicle converts AC grid voltage into DC voltage to charge the high-voltage battery.
+**Operating Principle: **
+\\ \\
+**AC Input**
+  * The grid provides a sinusoidal AC voltage that alternates between positive and negative values.
+**Rectification (Full-Bridge)**
+  * A full-bridge rectifier uses four diodes. During each half-cycle, two diodes conduct, ensuring that current always flows in the same direction through the load.
+**Pulsating DC Output**
+  * The output voltage is always positive but contains significant ripple at twice the grid frequency (100 Hz).
+**Smoothing**
+  * A capacitor connected in parallel to the load reduces voltage ripple by storing and releasing energy.
+**Active Rectification (PFC)**
+  * In real EV chargers, active rectifiers improve efficiency and power factor by shaping the input current to follow the voltage waveform.
+{{page>lab_electrical_engineering:3_rectifier:Voltage Divider and Bridge Circuit&nofooter}}
+{{page>lab_electrical_engineering:3_rectifier:The Half-Wave Rectifier&nofooter}}
+{{page>lab_electrical_engineering:3_rectifier:Bridge Rectifier&nofooter}}
+{{page>lab_electrical_engineering:3_rectifier:Fixed Voltage Regulator&nofooter}}
+{{page>lab_electrical_engineering:3_rectifier:Three-phase AC&nofooter}}
-<panel type="warning" title="in the ILIAS course">
-Read the documents for Experiment 3 here. \\
-These will be made public one week before the experiment.
-</panel>
 ===== Preparation for the oral short test =====