Title: Electronic Speed Control (ESC) Circuits, Working And Applications
1Introduction To Electronic Speed Control (ESC)
Working and Applications
2Introduction 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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3Introduction To Electronic Speed Control (ESC)
Working and Applications
Electronic Speed Controller
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4Introduction 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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5Introduction 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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6Introduction 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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7Introduction 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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8Introduction To Electronic Speed Control (ESC)
Working and Applications
Assembly of ESC
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9Introduction 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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10Introduction To Electronic Speed Control (ESC)
Working and Applications
Types of an Electronic Speed Controller
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11Introduction 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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12Introduction 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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13Introduction 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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14Introduction To Electronic Speed Control (ESC)
Working and Applications
Electronic Speed Controller Circuit
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15Introduction 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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16Introduction 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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17Introduction 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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18Introduction 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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19Introduction 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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20Introduction 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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21Introduction 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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