Analysis of some common problems in digital circuit design

With the help of the design circuit of a two-way timer, this paper analyzes the common problems in three aspects of digital circuit design in detail in the form...

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ACM6753 motor driver chip - advantages of sine wave control

ACM6753 is a 18V/3A three-phase non-inductive BLDC (brushless DC) motor drive IC, 180 ˚ Sine, integrated drive algorithm+pre-drive+MOS, built-in current det...

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Comparison of advantages and disadvantages of Class A, Class B, Class AB and Cla...

When the digital audio data is processed and becomes an analog audio signal, it must be amplified and output. Therefore, the amplification IC is also an imp...

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Design of small antenna in portable wireless products

Generally, antenna design will not attract much attention until the end of the design cycle. The reason may be that they are passive devices and play a smal...

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Charging principle of supercapacitor charging

Analysis of charging principle of supercapacitor What is super capacitor? The supercapacitor is a kind of battery with small internal resistance, which can ...

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TMC6300 high-speed silent miniature DC brushless motor drive IC

brief introduction The TMC6300 from a single lithium-ion battery or dual AA battery is the most suitable working power supply device for batteries. Operate ...

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Influence of reactive power and harm of harmonic

(1) Reactive power will lead to current increase and apparent power, which will increase the capacity of generator and transformer electrical equipment and ...

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Single-chip security intelligent door lock scheme based on Nations products

On January 11, 2022, the National Technology N32G4FRx/N32WB4x MCU single chip security intelligent door lock scheme was launched. In recent years, with ...

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BLDC brushless DC motor FOC control technology solution

From the perspective of energy consumption, the transition of consumer electronics and industrial equipment from traditional AC motors to smaller and more e...

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Negative buck converter does not need inductor

The circuit uses two charge pump devices to reduce the negative voltage. The first generates positive output by doubling and inverting the negative input vo...

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How does MaxxAudio algorithm improve sound quality

What technology is MaxxAudio? As a sound solution, let‘s start with sound. What is the sound? Decibel? Frequency? Vibration? Yes, not all! The ...

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Introduction to digital audio interfaces such as I2S, PCM and PDM

Digital Audio Interfaces (DAI), as the name implies, refers to the way of transmitting digital audio signals at the board level or between boards. Compared ...

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Method Analysis of Output Drive Capability of Operational Amplifiers

When selecting operational amplifier (operational amplifier) in the circuit to achieve a specific function, one of the most challenging selection criteria i...

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How to successfully apply DC-DC boost regulator

The power supply of portable electronic devices such as smart phones, GPS navigation systems and tablets may come from low-voltage solar panels, batteries o...

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Detailed elements of PCB inspection

When the layout and wiring of a PCB is completed, and the connectivity and spacing are checked without error, is a PCB completed? The answer, of course, is ...

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Simple open-circuit protection of boost converter

One way to drive high-brightness LED is to modify the standard boost converter topology to drive a constant current through the load. However, this implemen...

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Comparative Analysis of Linear Regulator and Switching Regulator

1、 Different concepts of linear regulator and switching regulator 1. What is a linear regulator? Linear regulators use transistors or FETs operating in the...

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Several Development Trends of Class D Amplifiers

Class D amplifier has been greatly developed in the past few generations of products. The system designer has greatly improved the durability of the system ...

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An effective way to reduce the sound of AC power supply of small speaker power a...

Some cheap power amplifiers "buzz" when they are turned on, which not only affects the sound quality, but also makes people upset. Here are some treatment m...

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Grounding loop of DC-DC converter

DC-DC converter supplies power for each circuit in the whole system. Although each circuit may perform well on the test bench, the overall performance of th...

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