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Introduction to Conduction Angle and Characteristics of Three Phase Brushless DC...
ROHM has over 220 models of motor driver ICs and has a strong market performance. The motors covered by motor driver ICs include brushless DC motors, stepper mo...
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Microcontroller for controlling motor controllers
You may have noticed in the diagram that the EFM8 appears to be powered by 5 V from the DC/DC converter. But in reality, EFM8 has an integrated linear regulator...
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Principle of three-phase brushless DC motor
In order to achieve brushless commutation in a three-phase brushless motor, it is first required to place the armature winding of a general DC motor on the stat...
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Lithium iron phosphate battery,specific reasons for battery failure voltage drop
As a type of iron battery, lithium iron phosphate battery has always received widespread attention from industry friends. Today, we will mainly talk about the c...
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What is feeling, What is insensitivity,The difference between inductive and non ...
In sensorless brushes, sensing refers to "Hall sensors", so what is "Hall"? Hall refers to the Hall effect, which was discovered by American physicist A.H. Hal...
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Trends in Hall effect current sensing
Over the past decade, the demand for low-cost, small-scale current sensor solutions in industrial, automotive, commercial, and communication systems has rapidly...
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How to prevent reverse charging of lithium batteries
Lithium batteries are commonly used in many device applications that require backup power, such as real-time clocks (RTCs) and storage devices. When a lithium b...
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Battery safety, chip responsibility
Driven by the trend of electrification, cars are undergoing earth shattering changes, with the core three major components changing from the engine, chassis, an...
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2-coil fan driver, power consumption
This application note introduces how to determine the power consumption of a Melexis two coil fan driver integrated circuit. This document will discuss power fa...
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Frequency compensation of operational amplifiers
The operational amplifier can be configured as open loop and closed loop. In an open loop, there is no feedback circuit. But in a closed-loop system, the amplif...
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The difference between RC filter and LC filter
The frequency range of LC filter application is 1kHz~1.5GHz. Due to the limitation of the Q value of the inductance, the cutoff region of the frequency response...
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What does Transient Suppression Diode TVS Transient Suppression Diode TVS mean
Transient Suppression Diode (TVS), also known as Clamping Diode, is a high-efficiency circuit protection device commonly used internationally. Its appearance is...
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All information about the reverse phase buck boost converter
All information about the reverse phase buck boost converter is based on the switch mode voltage conversion of inductors, which is a fundamental technique for ...
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Common mode and differential mode
When the changes in voltage and current are transmitted through wires, there are two forms, which we refer to as "common mode" and "differential mode". The powe...
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Class D audio amplifier: What, why, and how
Class D amplifiers were first proposed in 1958 and have become increasingly popular in recent years. What is a Class D amplifier? How do they compare to other t...
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There are many challenges in power supply design, dealing with high current can ...
In the opening remarks, it was mentioned that the most important factor in power supply design is the current, and the magnitude of the current determines the d...
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Wearable PCB design should be cautious, considering these three major issues
Due to their small size and size, there are almost no ready-made printed circuit board standards for the growing wearable Internet of Things market. Before thes...
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Design of LED Street Lamp Power Supply
LEDs are more efficient than traditional bulbs and lights. They do not require preheating time to achieve brightness, which makes them better than fluorescent l...
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Low voltage motor drive design
The low-voltage motor driver uses two basic MOSFET configurations: n-channel half bridge and p and n-channel (complementary) half bridge. The main advantage of ...
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Three section lithium battery mobile power supply bidirectional fast charging IC...
Built in PD3.1/QC3.0 protocol, 3-8 sections of voltage up and down bidirectional fast charging 140W lithium battery charging and discharging chip-M12269, used f...
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