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How to control the motor with the aid of low side current induction
Recently, I have been conducting ESD testing for electronic products. From the test results of different products, it is found that this ESD is a very impor...
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Simple reverse polarity protection circuit without voltage drop
The usual method of reverse voltage protection is to use diodes to prevent damage to the circuit. One solution is to use a series diode that allows only cur...
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Discussion on capacitance calculation of buck converter IC
The rated voltage of the input capacitor must be higher than the input voltage. In addition, the rated ripple current of the capacitor must be higher than the i...
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Tackle the difficulties of voltage surge and current surge
In order to prevent the distributed inductance and capacitance of high-speed switching circuits in switching power supplies (switching power supplies are po...
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Manage electronic system surges and enhance system protection
The methods for avoiding circuit system failures in electronic products and managing power-on surge currents have made significant progress, evolving from s...
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High precision and high edge current detection amplifier monitoring PWM load cur...
"At the moment of turning on the audio power supply, because the voltage at both ends of capacitor C3 cannot suddenly change, it can be considered as a shor...
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Design of omnidirectional three-dimensional capacitive sensor
Through analyzing and researching the problems encountered in students‘ electronic training courses, I invented an omnidirectional three-dimensional capaci...
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Design of a Novel Class D Audio Power Amplifier Driver Circuit
Due to the high efficiency and relatively small size of the integrated Class D audio power amplifier, and in most cases, no or only a small area of heat sin...
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New brushless DC motor control sensor improves energy efficiency and reduces noi...
Brushless DC (BLDC) motors have increasingly become the main force in the motor market. Although the procurement cost is a little high and electronic device...
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Add speaker protection circuit to car audio
1. At the moment of connecting the audio power supply, because the voltage at both ends of capacitor C3 cannot jump, it can be regarded as a short circuit, ...
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Notes on LLC design of audio amplifier
Special consideration must be taken when designing the power supply for the audio amplifier. Compared with the standard isolated power supply, the nonlinear...
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Design of fast response feedback system for small motor drive
The motor rotation information, such as position, speed and direction, must be accurate in order to produce the drivers and controllers in various emerging ...
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Principle and design guide of power amplifier circuit
Power amplifier (English name: power amplifier), referred to as "power amplifier", refers to an amplifier that can produce maximum power output to drive a l...
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Evolution of on-board wired charging technology
At present, there are two major development directions for on-board charging: wired charging and wireless charging. The following charging head network will...
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What should I do if the power ripple is large
1、 Generation of power ripple Our common power supplies include linear power supplies and switching power supplies. Their output DC voltage is obtained by ...
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PCB design of battery charger circuit
1 Introduction to Protel software With the rapid development of electronic information technology, the hand-designed PCB (printed circuit board) of electron...
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Analysis of factors causing switching power supply squealing
Anyone who has done development work has the experience of testing the switching power supply or hearing the leakage sound or high voltage arcing sound of s...
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How does the power amplifier tube in the power amplifier affect the sound qualit...
There are many power amplifiers on the market, including karaoke power amplifier, AV power amplifier, HIFi power amplifier, professional power amplifier, et...
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Push the limit control of stepping motor in 3D printer
"In the field of 3D printing, it is often difficult for novices to understand the real driving mode of the stepping motor. For example, many engineers will ...
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Design and Implementation of Interlaced Low-voltage and High-current DC-DC Conve...
In recent years, as the input voltage requirements of computer microprocessors become lower and lower, the research of low-voltage and high-current DC-DC co...
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