MOTOR Operating voltage: between 3 V and 9 V Nominal voltage: 6 V Free-run speed

Question

MOTOR Operating voltage: between 3 V and 9 V Nominal voltage: 6 V Free-run speed at 6 V: 281 RPM Free-run current at 6 V: 80 mA Stall current at 6V: 900 mA Stall torque at 6V: 4 kg cm Gear ratio: 1:21 Redactor size: 19 mm Weight: 84 g You need to change the speed of the motor but not the direction. You only have limited money; therefore, you cannot buy Wardmote. Be sure not the use the whole current capacity of Arduino (do not exceed half of the maximum current capacity of the PCB). Write down the components that you need, draw a schematic and label the ports, choose each element correctly and prove that they will work problem free, Calculate the total cost of the circuitry excluding Arduino and the motor.

Explanation / Answer

motot data

operating voltage 3v and 9v and nominal voltage- 6v

for nominal volatge 6 v following are the results and it has to be maintain the same without using ardumoto

because of econimical budget and hence

for changing speed of the motor

variable frequency drive is use of rating upto nominal voltage rating and speed can be control by applying various syncronising criteria and hence we can optimize electrical power

components required for changing speed

vfd drive with with very low in cost

connecting wires

probes

pvc tape etc

if not use by vfd

then design PCB of as per rated criteria wchich is simpler to that of vfd and low wt

in avery low cost we can design pcb as per speed changing criteria

its avery simple

components use for pcb design

pcb boards

ressitor

capacitor

inductor if required

these having dimention as per rated criteria

soldiring gun

and pvc taps

all cost is around 1500 rs hardly

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