How does the Boost circuit boost voltage? How is BUCK circuit depressurized?

When Q1 is turned on, it is equivalent to the inductor shorting the input source Vin, and the inductor current will increase at a fixed slope, at which time the...

Say goodbye to the selection problem: the 4-step golden rule of MOSFET selection

The first step in choosing the right device for your design is deciding whether to use an n-channel or P-channel MOSFET. In typical power applications, when a M...

The most comprehensive motor knowledge is here

The motor is the part that converts battery electricity into mechanical energy and drives the wheel rotation of the electric vehicle.

Battery charging method: How to determine whether the battery is full

This mode is mainly applied to online UPS. Lead-acid battery charging process is divided into two stages, the first stage is a constant current process, the cur...

Distinguish between phototriode and photodiode

Phototriode and photodiode appearance is very similar, but their performance is different. If the load resistance of the phototriode is small, it is generally 1...

Pin distribution and identification of integrated circuits

The pin distribution law of integrated circuit is determined according to different packaging methods, and the pin number corresponds to the number in the integ...

The difference between inductive control and non-inductive control of brushless ...

When BLDC performs trapezoidal wave control, the rotor magnetic pole position needs to be detected, and the stator coil is exchanged according to the detected p...

Basic knowledge of serial communication

Serial communication is a common data transmission method used to exchange data between computer systems, embedded systems and external devices. The following a...

Brushless direct current motor (BLDC) and its main driving mode

The brushless DC motor uses electronic commutator to replace the mechanical commutator of the traditional DC motor, thus overcoming a series of disadvantages su...

Power ripple test. Best thing I‘ve ever seen

Let‘s make a simple summary, the measurement method of the output ripple of the switching regulator can be summarized as follows: 1. Use oscilloscope bandwidth...

Synchronous or asynchronous? Select the right DC-DC converter to ensure boost sy...

Did you know that for every 10°C increase in the environment, component life is reduced by 50%? [1] Will a steep drop or change in power supply cause premature ...

Introduction to DC brushless motor FOC control

Field-oriented Control (FOC), that is, Field Oriented Control, also known as vector frequency conversion, is currently the best choice for efficient control of ...

Detailed analysis of the advantages and disadvantages of 5 driving methods of st...

The development of drive technology, from the original foreign outstanders to the emergence of various excellent technologies in the country, we can see the pro...

Discussion on the selection of frequency dividing points in loudspeaker system

The frequency divider usually used in the loudspeaker system is a passive frequency divider, and its main components are electrical induction L, capacitance C a...

What is the difference between sine wave control and square wave control of DC b...

The brushless DC motor is developed on the basis of the brushless DC motor. It has the advantages of stepless speed regulation, wide speed regulation range, str...

Why is spread spectrum clock technology a good way to deal with EMI

Efficient and affordable USB power delivery for in-vehicle infotainment systems

While USB Type-C® is primarily known as a next-generation, faster charging standard for laptops, tablets, and smartphones, it is also becoming increasingly popu...

Three rules and three elements of EMC

Electromagnetic Compatibility (EMC) is electromagnetic compatibility. It is a technique for studying electromagnetic interference. Electromagnetic interference ...

Application communication: Positioning or timbre, which is more difficult to for...

For the fever sound, positioning is the premise of forming a three-dimensional sense, and the key to the pairing of the right and left vocal channels. The natio...

Three-phase full wave brushless DC motor and its driving method

Three-phase full-wave brushless DC motor is a kind of motor with high efficiency, low energy consumption, low noise and high precision, which is widely used in ...