Ultra low distortion audio pan can amplifier

The audio "pan pot" circuit shown in Figure 1 continuously changes the position of the mono audio signal between the left and right stereo channels according to...

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Fully functional microcontroller music program

The smallest system of single chip microcomputer, two LED Nixie tube is driven by two 164 connected to the serial port output, Lout and Rout are left and right ...

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Three Methods to Suppress or Reduce Ripples in Switching Power Supplies

Our ultimate goal is to reduce the output ripple to a tolerable level. The fundamental solution to achieving this goal is to avoid the generation of ripple as m...

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What is a PD charging port

The full name of the PD charging port is USBPowerDelivery, which means that the charger output of the USB-PD protocol is output in Type-C.The biggest advantage ...

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What is the solution to the difficulty of managing the charging and discharging ...

In the era of USB PD3.0, a charging power of 100W can already meet the charging needs of the vast majority of portable devices, such as smartphones, tablets, la...

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LED control method for I2C in LED driver

The power supply is an important part of the entire circuit board, and it is unstable. Don‘t talk about anything else.In power supply design, we often use a st...

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The physical structure and application circuits of three main motors

Although the term ‘type of motor‘ is simple to say, with the development of technology, motors have become increasingly diverse, and therefore classification ...

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Reducing Second Harmonic Distortion through Symmetric PCB Layout

Differential circuits driven by differential signals do not generate even harmonics. In this article, we will discuss the necessity of using a symmetrical PCB l...

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The basic architecture and working principle of LDO

LDO, also known as Low Dropout Regulator, is a linear power supply that requires fewer external components for application. Some models of LDO only require a fi...

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Overview of Embedded MCU Hardware Design

At present, the development of embedded technology in integrated circuits is getting faster and faster, and various embedded products are becoming more and more...

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How to solve the audio challenge of ultra-thin laptops

In the work environment, the way people use laptops constantly undergoes unexpected changes. The epidemic has made remote work a norm. The trend of mixed office...

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BLDC Motor Drive Strategy

Reset the commutation timing, enable the timeout count ->Set the driving power ->AB phase drive on ->Detect zero crossing ->Detect zero crossing, enable the com...

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The relationship between grounding, EMI, and power quality

The relationship between grounding, EMI, and power quality.The difference between safety grounding and EMC grounding.Design considerations for EMC grounding.Gro...

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TI utilizes two control schemes to reduce the noise of BLDC motor drivers

Brushless DC motors (BLDCs) have replaced AC induction motors and become increasingly common in general electrical applications such as fans, air purifiers, was...

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Usage of Efficient BLDC Brushless Motor

Sinusoidal control is the best way to achieve these goals, but compared to more traditional trapezoidal control techniques, this control increases cost and com...

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PCB usage tips

1. Automatic generation of component labels or cancellation of existing component labels 2. Single panel settings: 3. Set the power cord to be bold ...

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Class D amplifier and EMI suppression

The operating principle of Class AB amplifier is similar to that of linear regulator, with poor efficiency and heat dissipation; The working principle of Class ...

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Advantages and disadvantages of Class D power amplifier ICs

In recent years, the Class D power amplifier with high efficiency is attracting attention from all aspects because it conforms to the trend of the Green Revolu...

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Application of Charge Pump Technology (Non Inductive Boost) in Class G Amplifier...

There is a common problem in portable audio applications, which is the limited power supply voltage of the speaker amplifier. These audio systems are typically ...

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Design of an infrared induction and energy-saving switch for power outage

Functional switches play an important role in people‘s production and daily life. There are various types of automatic power off switches, voice controlled swi...

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