遥控模型飞机电机控制

AsmodernMOSFETtransistorsaredevelopedwith

lowerONresistanceandsmallerpackages,Electronic

SpeedControls(ESC)follow.Byusingamicrocontrol-

lerandafewsmallMOSFETs,highperformance

speedcontrolscanbebuiltwithadvancedfeaturesin

smallpackages.Thisapplicationnotewilldescribethe

designandconstructionoftwosmallspeedcontrols

appropriateforflyingmodelairplanesupto6lbs.

Manyofthecontroltechniquesinthisapplicationnote

caneasilybeusedwithlargerDCmotorsindifferent

applications.AN847RCModelAircraftMotorControl5.SafetyShutoff(ifthecontrollingsignalislost,themotorshouldstop)Author:JosephJulicherMicrochipTechnologyInc.6.BatteryEliminatorCircuit(BEC)(Thisallowstheflightbatterytopowertheradioequipment)INTRODUCTION7.LowVoltageShutdown(Disablesthemotorwhen