Brushless Motor Speed Measurement and Speed Control

Brushless Motor Speed Measurement and Speed Control

Brushless Motor Speed Measurement and Speed Control Introduction to Brushless Motor The speed feedback closed-loop control system of a brushless motor is a basic feedback control system characterized by three fundamental features, which are the basic rules of feedback control. All basic feedback control systems, without additional regulators, adhere to this rule. 1. The controlled … Read more

AC Power Supply for Microcontroller-Based Fan Speed Controller

AC Power Supply for Microcontroller-Based Fan Speed Controller

The microcontroller requires 2 to 5.5V DC power supply, which can be easily provided by batteries or auxiliary power sources. However, in some cases, microcontroller-based products must operate directly from 120 or 220V AC power outlets without using a step-down transformer or resistive voltage drop. Additionally, polyester/ polypropylene film capacitors rated for AC power can … Read more