Electronic Speed Control (ESC) Circuits, Working And Applications

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Introduction To Electronic Speed Control (ESC)
Working and Applications
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Introduction To Electronic Speed Control (ESC)
Working and Applications
Introduction

• ESC stands for an electronic speed control is an
  electronic circuit used to change the speed of an
  electric motor. These are frequently used on
  radio controlled models which are electrically
  powered, with the change most frequently used for
  brushless motors basically providing
  an electronically produced 3-phase electric
  power low voltage source of energy for the motor.
  An ESC can be a separate unit which lumps into
  the throttle receiver control channel or united
  into the receiver itself, as is the situation in
  most toy-grade R/C vehicles.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Electronic Speed Controller
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Introduction To Electronic Speed Control (ESC)
Working and Applications
Features of an Electronic Speed Control

• An ESC controls the speed of the motors spin of
  an airplane.
• It helps the similar purpose as the throttle
  servo of a glow powered airplane. 
• It is an edge between the radio receiver of an
  airplane and the power plant. 
• An electronic speed control will have 3- sets of
  wires.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Features of an Electronic Speed Control

• One wire will plug into the main battery of an
  airplane. 
• The second wire will have a typical servo wire
  that plugs into the receivers throttle
  channel. nd lastly, a third of wire is used for
  powering the motor. 
• The main features of an electronic speed control
  include battery eliminator circuit, low voltage
  cutoff, brake, and to.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Components used in ESC

• The components used in ESC mainly include the
  following
• Solder pads for the 3-BLDC motor phases
• Negative (-) LIPO connections
• Positive () LIPO Connection
• Servo signal or input of the PWM signal

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Components used in ESC

• GND reference of PWM Signal
• Solder jumper, for altering the direction of
  Rotation (CW/CCW)
• Solder jumper, for varying the type of the PWM
  input signalState LED

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Assembly of ESC
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Introduction To Electronic Speed Control (ESC)
Working and Applications
Types of an Electronic Speed Controller

• There is two kinds of electronic speed controller
  based on the specific requirements.
• It can acquire the exact one existing in RC
  Models shops such as
• Brushed Electronic Speed Control
• Brushless Electronic Speed Control

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Types of an Electronic Speed Controller
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Introduction To Electronic Speed Control (ESC)
Working and Applications
Types of an Electronic Speed Controller

• Brushed Electronic Speed Control
• Brushed ESC is the first electronic speed
  controller, which has been around for several
  years.
• It is very cheap to use in various RTR electric
  RC vehicles.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Types of an Electronic Speed Controller

• Brushless Electronic Speed Control
• Brushless ESC is the modern advancement in
  technology once it comes to Electronic Speed
  Controls.
• It is also a bit more costly. 
• Connected to a brushless motor, it carries more
  power higher performance as compared to the
  brushed ones.
•  It can also last a longer period of time.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Electronic Speed Controller Circuit

• The term ESC is frequently used as a contraction
  for electronic speed controller. 
• The basic function of ESC is to change the amount
  of power to the electric motor.
• From the aircraft battery based upon the location
  of the throttle stick.
• In earlier, speed controllers are mainly used in
  remote control boats and cars which use a
  variable resistor with a wiper that was
  stimulated by a servo motor.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Electronic Speed Controller Circuit
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Introduction To Electronic Speed Control (ESC)
Working and Applications
Electronic Speed Controller Circuit

• This technique works reasonably at full throttle
  as the battery is associated straight to the
  motor.
• Though at part throttle situations the flow of
  current through the resistor producing power to
  be lost in the form of heat.
• As a model, aircraft will use most of its time
  at the portion of the throttle.
• This is not a very practical means of power
  control.
• Current speed controllers differ the power to the
  motor by fast switching the power ON and OFF.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Electronic Speed Controller Circuit

• MOSFET Transistor is used as a switch instead of
  a mechanical device, and the amount at which it
  is switched is about 2000 times a second.
• So, the power to the motor is diverse by
  changing the amount of ON time, against off time
  in a specified cycle.
• Here is the simple ESC circuit with waveform
  diagram may help with the description.
• MOSFET is switched ON, when current rises up as
  the magnetic field in the windings of the motor
  increases.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Electronic Speed Controller Circuit

• When MOSFET is switched OFF, magnetic energy
  stored in the windings has to be absorbed by the
  ESC.
• By cabling a diode across the motor, we return
  the energy back into the motor as current, which
  rises down as the magnetic field failures.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Choosing the Right ESC

• The number one significant consideration to keep
  in mind is to match the Electronic Speed Control
  to the sort of motor you used. 
• Be sure to purchase the correct ESC for the exact
  motor.
• Brushed ESC is used for the brushed
  motor, brushless ESC is used for the brushless
  motor, never vice versa.
• Usually, apart from the labels, you will directly
  know that its a brushed motor if it has 2-wires.
• If the motor has three wires, then it is
  brushless.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Choosing the Right ESC

• For people who are not aware with electronic
  speed control, most of the models like RTR RC
  model are provided with a pre-installed
  Electronic Speed Control.
• Most of these are brushed digital units that
  carry a decent act in their operations.
• If RC car comes with an analogue speed control,
  which needs a servo in order to work the swing
  arm, consider receiving a digital one as soon as
  you can.
• This way you will remove all the disturbances and
  preventions going down from the area of the
  drivers stand to recover your RC car every time
  it becomes stuck in the track.

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Applications of ESC
The electronic speed control systems are used
in remote control and vehicle applications

• Electric cars
• Electric bicycles
• Electric aircraft
• Cars
• Helicopters
• Airplanes
• Boats
• Quadcopters
• ESC Firmware

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Introduction To Electronic Speed Control (ESC)
Working and Applications
Conclusion

• Electronic Speed Control  is an electronic
  circuit with the purpose to vary an electric
  motor's speed, its direction and possibly also to
  act as a dynamic brake. ESCs are often used on
  electrically powered radio controlled models,
  with the variety most often used for brushless
  motors essentially providing an electronically
  generated three-phase electric power low voltage
  source of energy for the motor.

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