Add Duty Cycling to the Heater Bed

Marlin/Configuration.h

@@ -87,6 +87,10 @@
 #define HEATER_2_MAXTEMP 275
 #define BED_MAXTEMP 150
 
+// If your bed has low resistance e.g. .6 ohm and throws the fuse you can duty cycle it to reduce the
+// average current. The value should be an integer and the heat bed will be turned on for 1 interval of
+// HEATER_BED_DUTY_CYCLE_DIVIDER intervals.
+//#define HEATER_BED_DUTY_CYCLE_DIVIDER 4
 
 // PID settings:
 // Comment the following line to disable PID and enable bang-bang.