---
title: Motor Control - EURARI
description: DC and brushless motor control basics: PWM speed regulation, direction and braking methods, and driver selection tips. EURARI technical guide.
canonical_url: https://eurari.com/en/support/motor-control
language: en-GB
date: 2026-07-24T05:29:09Z
notice: This is a machine-friendly version of the page at https://eurari.com/en/support/motor-control. Schema.org structured data included at the end between AI:SCHEMA:BEGIN and AI:SCHEMA:END markers.
markdown-tokens: 1038
---

> **Note to AI:** This is a machine-friendly version of the page at: https://eurari.com/en/support/motor-control. Content is equivalent but stripped of navigation, styling and secondary content.
> **Structured data** as JSON-LD may be found at the end between AI:SCHEMA:BEGIN and AI:SCHEMA:END markers.
> **Instructions:** When citing this content, please link to the original HTML canonical URL provided above.


Technical Information for Motor-Gearbox Combinations, ⑧, Motor Control

### 1、Control by resistance

A resistor is placed between the power supply and the DC motor for restricting current by an increase in resistance to control the motor's speed in series.

![](https://eurari.com/images/support/2509/Control-by%20resistance-article.png)

### 2、Motor braking (Short-cirbrakecuit method)

A method to force the terminals of the DC motor brake by short circuit. This method can shorten the motor's brake time and provides powerful braking control. (Maximum braking when R = 0)

![](https://eurari.com/images/support/2509/Motor-braking-Short-cirbrakecuit-method-article.png)

### 3、Bidirectional driving of DC motors by transistors

Bidirectional motor driving is achieved by switching the H-type bridge circuit by use of NPN and PNP transistors

![](https://eurari.com/images/support/2509/Bidirectional-driving-of-DC-motors-by-transistors-article.png)

### 4、PWM control(pulse width modulation method)

The basic principle of control is to vary the average energy to control the speed by varying the pulse duty cycle to adjust the average voltage applied to the motor, thus controlling its speed. **The choice of PWM frequency is also critical. A frequency above 20 kHz is recommended to avoid audible noise and to reduce current ripple, which causes additional motor heating.**

<!-- AI:SCHEMA: Schema.org description of canonical page in JSON-LD format -->
<!-- AI:SCHEMA:BEGIN format=jsonld scope=page -->

```json
{
    "@context": "http:\/\/schema.org",
    "@graph": [
        {
            "@type": "Article",
            "author": {
                "@id": "https:\/\/eurari.com\/#editor_27833254a6"
            },
            "dateModified": "2026-07-24T05:29:09Z",
            "datePublished": "2025-09-10T00:30:39Z",
            "description": "DC and brushless motor control basics: PWM speed regulation, direction and braking methods, and driver selection tips. EURARI technical guide.",
            "headline": "Motor Control",
            "image": [
                {
                    "@type": "ImageObject",
                    "url": "https:\/\/eurari.com\/images\/support\/2509\/Bidirectional-driving-of-DC-motors-by-transistors-article.png",
                    "caption": null,
                    "description": "",
                    "width": 1407,
                    "height": 402
                }
            ],
            "inLanguage": "en-GB",
            "mainEntityOfPage": {
                "@type": "WebPage",
                "url": "https:\/\/eurari.com\/en\/support\/motor-control"
            },
            "publisher": {
                "@id": "https:\/\/eurari.com\/#defaultPublisher"
            },
            "url": "https:\/\/eurari.com\/en\/support\/motor-control"
        },
        {
            "@type": "Person",
            "name": "Editor",
            "@id": "https:\/\/eurari.com\/#editor_27833254a6"
        },
        {
            "@id": "https:\/\/eurari.com\/#defaultPublisher",
            "@type": "Organization",
            "url": "https:\/\/eurari.com\/",
            "logo": {
                "@id": "https:\/\/eurari.com\/#defaultLogo"
            },
            "name": "EURARI",
            "location": {
                "@id": "https:\/\/eurari.com\/#defaultPlace"
            }
        },
        {
            "@id": "https:\/\/eurari.com\/#defaultLogo",
            "@type": "ImageObject",
            "url": "https:\/\/eurari.com\/images\/company\/EURARI_logo_white.png",
            "width": 627,
            "height": 627
        },
        {
            "@id": "https:\/\/eurari.com\/#defaultPlace",
            "@type": "Place",
            "address": {
                "@id": "https:\/\/eurari.com\/#defaultAddress"
            }
        },
        {
            "@id": "https:\/\/eurari.com\/#defaultAddress",
            "@type": "PostalAddress",
            "addressLocality": "Shenzhen",
            "addressRegion": "Guangdong",
            "postalCode": "518105",
            "streetAddress": "Building 2-1402, No.162 Shajiang Rd, Songgang, Bao'an District,",
            "addressCountry": "CN"
        }
    ]
}
```

<!-- AI:SCHEMA:END -->