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--- info:inrush_current_limiting [2009/05/18 10:40] – created tomgee
+++ info:inrush_current_limiting [2009/05/28 09:21] (current) – tomgee
@@ Line 1: / Line 1: @@
-===== Inrush Current =====
+===== GE Microwave Inrush Current =====
-The GE microwave has an inrush relay. I did some online googling to figure this thing out. I believe this is a Samsung controller and in my search I tripped across a Samsung patent for this inrush relay.
+The GE microwave has an inrush relay. I did some online googling to figure this thing out. I believe this is a Samsung controller and in my search I tripped across a Samsung patent for this inrush relay which gives some insight into the circuitry.
 **How It Works**
@@ Line 17: / Line 17: @@
 Duty cycle cycling of the magnetron would use the magnetron activation function to activate the magnetron periodically.
+===== Example Circuit for Inrush Limiting =====
+This design article proposes a time delay relay to limit inrush, very similar to what the GE microwave does.
+{{:info:inrush_delay_relay.jpg|}}
+{{:info:inrush_time_delay.jpg|}}