two
it can be done using L293d ic , the ic can control two motors. refer the data sheet for the connections and circuit. L293d also has inbuilt H-bridge.
To interface a servo motor with an L293D motor driver, connect the servo's control signal wire to a PWM-capable output pin on a microcontroller. The L293D is typically used for DC motors, so it’s not necessary to connect the servo's power and ground directly to the L293D; instead, power the servo from an appropriate power source. Use the microcontroller to send PWM signals to control the servo's position, while ensuring proper power supply handling for both the servo and the L293D.
only shunt dc motors have varaible speed control. compound dc motors do however NT as much, plus they are just a mixture of series and shunt dc motors.
DC motors are not common in industry. However traction motors are one such main DC motor application. There are many tools, toys, drones, which use DC motors run by batteries.
Basically anything that works with batteries usually works with DC motors, i.g. your hard drive, your cellphone vibrator, toys, etc. Also, even for large motors, the DC motor has the advantage of being easily controlled by input voltage. Induction motors, on the other hand, can use controlled input voltage but they will have to deal wth low torque when the voltage is low. DC motors are used for those little fans in your computer. Also, CD players also use DC motors to spin the discs. DC motors are important where absolute speed control and feedback are necessary. For your household appliances, including fan motors, those are AC motors, cheaper for the industrial strength and more efficient.
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because the dc motor will act as dc generator as same as dc generator acts as a dc motor .so it is called as dc machines.AnswerBecause generators and motors are machines, and operate on d.c.'A.C. machines' are generators, transformers, and motors which operate on a.c.
DC drives are direct current motors. They are lower in cost and easier to control as compared to AC drives, which are also known as alternating current motors.
actually dc motors are of several types in which one of them are 1).brushed 2).brushless ...so the motor present in DVD are the brushless dc motors ...
because dc motor is a powerful & dangerous motor it is akiller
Transistors are not normally connected to dc motors, but it is possible to use transistors in a speed-control mechanism for a motor.
usually ac 110v even on the dc motors