CST118S is widely used in a wireless charging mobile toothbrush scheme

Now many families are using electric toothbrushes, and electric toothbrushes are increasingly accepted by consumers. Next, let‘s introduce electric toothbrushe...

Comparison Test Report of CST6118 and CST118S

Comparison Test Report of CST6118 and CST118S

Design of EMI plus filter for class D power amplifier

Design of EMI plus filter for class D power amplifier Class D power amplifier output The output of class D power amplifier is PWM. Because the horn itself is a ...

Control principle of brushless DC motor and working principle of brushless DC mo...

From simple drilling rigs to complex industrial robots, many machines and equipment use brushless DC motors to convert electrical energy into rotational motion....

Resolution direction of power amplifier bottom noise

 Generation of bottom noise Generally, the bottom noise of mass produced chips is the normal value, hundreds of micro-amplitude, but in actual use, there ...

Power amplifier POPO sound solution

POP sound  Generally, after the chip is turned on, an impact is input from the sound source, resulting in an impact on the output, which sounds like POP ...

High sensitivity touch key MCU application circuit

High sensitivity touch key MCU application circuit

Touch MCU layout precautions

Touch MCU layout precautions: 1: VDD of touch MCU is indirectly connected in parallel with VSS 104 and as close to touch MCU as possible 2: The closer all touch...

Detailed explanation of MOS transistor working principle diagram - MOS transisto...

MOSFET is a type of FET (another type is JFET) that can be manufactured as either enhanced or depleted, with a total of four types: P-channel or N-channel. Howe...

The difference between NMOS, PMOS and triode

A MOS Transistor is a type of Field-Effect transistor (FET), whose name is derived from Metal-Oxide-Semiconductor. MOS tubes include two types: NMOS (N-Channel ...

CCM mode and DCM mode of Boost circuit

The Boost circuit can operate in current discontinuous mode (DCM) and current continuous mode (CCM). CCM working mode is suitable for high-power output circuit,...

Influence of power amplifier on sound quality

The power amplifier is a part of the sound system, which has an important influence on the sound quality. The power amplifier is the device that amplifies the a...

Causes and solutions of MOS tube breakdown

mos transistors are metal-oxide-semiconductor field-effect transistors, or metal-insulator (insulator) -semiconductors. The source and drain of MOS tube can be ...

Design of Texas Instruments HD audio system

In response to customer demand for top audio quality, audio system designers are looking into high-resolution or high-definition (HD) audio, as more and more mi...

The role of magnetic beads in solving EMI and EMC

(magnetic beads), like inductors, is a common device used to solve EMI and EMC problems, and its main role is to suppress high-frequency conducted interference...

The relationship between the sampling frequency of digital power amplifier chip ...

The sound quality of digital power amplifier has been plagued by many people, the bass is good, the treble is harsh, in fact, it is true that we have found this...

What is low-power design? Is low power design necessary?

Low power design is a technique that aims to reduce the overall dynamic and static power consumption of a product or integrated circuit. The goal of low-power d...

Frequency and sampling rate of digital power amplifier chip

How to calculate CAN special baud rate

CAN bus adopts asynchronous serial communication, that is, there is no separate clock line to ensure the consistency of the clock between each transceiver, each...

Characteristics and applications of traveling wave tube

Travelling-wave tube (TWT) is a microwave electron tube which realizes amplification function by continuously modulating the speed of electron beam. In the TWT,...