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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Buck DC-DC converter with high voltage input

Most common DC-DC applications are suitable for lower Vin/Vout voltage (less than 30V-40V). It is rare for higher voltage input. This paper introduces a st...

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TI launched the brushless DC motor drive series with trapezoidal and FOC control...

Are you distracted by the noise caused by many electrical appliances in your home? TI‘s latest brushless DC motor driver adopts trapezoidal and field-orien...

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Four misunderstandings of DSP controller by developers

Motor control designers have recently encountered obstacles in the development of various applications such as household appliances and servo drives. They m...

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Tips for reducing RF effect in PCB interconnection design

This article will introduce various techniques for the design of the three types of interconnection of the circuit board system, namely, the chip-to-circuit boa...

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Recover energy in DC motor drive

When the motion mass in the permanent magnet motor driver is decelerated, the energy stored in the mechanical system can be returned to the power supply thr...

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Selection of electric vehicle 48V power supply system, wide voltage input DC/DC ...

In the automotive field, with the introduction of 48V light hybrid system and the increasing popularity of electric vehicles, DC/DC converter has become an ...

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A5931 three-phase non-inductive BLDC brushless DC fan driver IC

The A5931 three-phase sensorless BLDC fan driver IC integrates a sine signal drive function to minimize audible noise and vibration. Integrate flexible ...

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A5941: Single-chip Hall-free sine wave drive of three-phase motor

A5941: Single-chip Hall-free sine wave drive of three-phase motor A5941 is a sensorless three-phase motor driver chip for medium-power fan applications. Thi...

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Why the micro-stepping in the stepping motor is not as good as you think

Stepper motors are usually used for positioning because they are cost-effective, easy to drive and can be used in open-loop systems - which means they do no...

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Power supply rejection ratio (PSRR) and open-loop closed-loop Class D amplifier

Open-loop closed-loop Class D amplifier has gradually become the preferred choice of consumer audio electronics designers. To accurately grasp the performan...

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What is the structure principle of linear regulator

The voltage stabilizer, as the name implies, is the device that stabilizes the output voltage. All voltage regulators use the same technology to realize the...

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Difference between triode and MOS tube

"Bipolar tube is a current control device (controlling a larger collector current through a smaller base current), and MOS tube is a voltage control device ...

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Hardware analysis of brushless and non-inductive DC motor drive

One of the key points of motor drive is to accurately know the position of the rotor. Inductive motors can only obtain the position of the rotor through sen...

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Brushless DC (BLDC) motor control solution

Brushless DC (BLDC) motors are rapidly becoming the natural choice for applications with high reliability, high efficiency and high power-to-volume ratio. T...

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60V low Iq step-down with adjustable grid drive

LTC3892 is a dual-output synchronous step-down controller with a wide input voltage range of 4.5V to 60V and an output voltage of 0.8V to V IN of 99%. The c...

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