What Is a Digital Servo? What Is an Analog Servo?

时间： 2023-11-01 来源：DSPOWER News

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In a Digital Servo, incoming signals are processed and converted into servo movement. These signals are received by a microprocessor. The length and amount of power of the pulse are then adjusted to the servo motor. Through this, optimum servo performance and precision can be achieved.

As mentioned above, digital servo sends these pulses at a much higher frequency which is 300 cycles per second. With these rapid signals, the response of the servo is pretty quick. The increase in the motor’s speed; eliminates the deadband. The digital servo provides a smooth movement with higher power consumption.

What Is an Analog Servo?
This a standard type of servo motor. In an analog servo, the speed of the motor is controlled by applying on and off voltage signals or pulses. The regular pulse voltage range is between 4.8 to 6.0 volts and this is constant.

For every second the analog servo receives 50 pulses and there is no voltage sent to the servo when on rest.

If you have an analog servo, you will be able to notice that the servo lags in reacting to small commands and cannot get the motor spinning fast enough. A sluggish torque is also formed in an analog servo, in other terms this is also called a deadband.

Now that you have an idea about what is an analog and digital servo, you can decide for yourself which servo motor will you prefer for your car.

What Are the Different RC Servo Sizes?
By now you have an overall idea about RC cars and that they come in different models and sizes. Just like this, the servos of RC cars have a variety of sizes and they are categorized into six standard sizes. In the table below you can see all the sizes with their specifications.

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