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