Short circuit braking of Brushless DC motor

Following the rotation principle and power generation principle of Brushless DC motor, we will introduce the short-circuit braking of Brushless DC motor in this paper. Because this is also one of the working principles of a series of Brushless DC motors, please understand it together. Short circuit braking of Brushless DC motor For brushless DC […]

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Daily maintenance of PLC

The daily maintenance of PLC mainly includes the following contents. ① Check the working environment of PLC to see whether the ambient temperature and humidity exceed the allowable range. In case of exceeding, cooling and dehumidification measures shall be taken. ② Check the ventilation and heat dissipation, and ensure the clearance distance between PLC racks, […]

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Power consumption calculation method of brush motor driver (I)

This paper will discuss the power consumption of motor driver IC. It has been asked whether the power consumption of motor driver IC can be calculated by the following formula. (IC circuit current + current flowing through the motor) × supply voltage At first glance, it seems OK, but it’s actually incorrect“ IC circuit current […]

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Power consumption calculation method of brush motor driver (2)

Following the previous article, this paper will continue to introduce the power consumption calculation method of brush motor driver. In the previous paper, the typical driving method of brush motor driver – constant voltage driving is introduced. This paper will introduce another typical driving method of brush motor driver – PWM driving power consumption calculation […]

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Structure and working principle of hybrid stepping motor

Previously, the work of PM stepping motor has been introduced as an example. This paper will introduce the structure and working principle of hybrid stepping motor, which is widely used today. Structure of hybrid stepping motor Hybrid stepping motor is a stepping motor with the advantages of VR and PM motors. VR (variable reliability) motor […]

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Method of driving brush DC motor

A simple method of driving brushless DC motor This paper will introduce the method of driving brushless DC motor from the very basic part. Perhaps most people have the experience of connecting the battery to the brushless DC motor to make the brushless DC motor run in science experiments in primary schools or handmade works. […]

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Bipolar connection and unipolar connection of two-phase stepping motor

Starting from this paper, the driving circuits of two-phase bipolar stepping motor and two-phase unipolar stepping motor, as well as the driving methods of two-phase bipolar stepping motor and two-phase unipolar stepping motor will be introduced. Firstly, bipolar connection and unipolar connection are introduced. Stepper motor: double pole connection and single pole connection Stepper motor […]

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What is the function of frequency converter braking resistance

The open circuit of the braking resistance of the frequency converter will affect the braking of the driven mechanical load of the frequency converter. Because the braking resistor is open, the electric energy loaded at both ends of the braking resistor cannot be released, which is equivalent to no braking function. Braking resistor, commonly known […]

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What are the matters needing attention in learning PLC

With the advancement of industrial automation, the core PLC in the industrial control industry is used more and more, so we should also keep pace with the times and learn PLC. Today, I’ll tell you what we need to pay attention to in learning PLC. I hope you can avoid detours in the process of […]

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