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  • Does the residue of PCBA process affect the reliability of PCB?

    Does the residue of PCBA process affect the reliability of PCB?

    The residue on PCBA mainly comes from the assembly process, especially the welding process. Such as flux residue used, reaction by-products between flux and solder, adhesive, lubricating oil and other residues. Other sources are relatively less harmful, such as pollutants and sweat stains caused by ...

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  • Working mode of stepper motor driver

    Working mode of stepper motor driver

    1. The whole step drive In the whole step operation, the same kind of stepping motor can be equipped with either the whole/half step driver or the subdivision driver, but the operation effect is different. The stepper motor driver circularly excites the two coils of the two-phase stepper motor a ...

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  • Main process of PCBA test

    Main process of PCBA test

    Main process of PCBA test PCBA test refers to the test of IC burning, circuit on-off and current, voltage and pressure on PCBA board. There are many uncontrollable factors in the production process of PCBA, so testing is a necessary link to strictly control the shipment quality. PCBA test ...

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  • How to reduce harmonic distortion in PCB design

    How to reduce harmonic distortion in PCB design

    Actually, the printed circuit board (PCB) is made of electrically linear materials, that is, its impedance should be constant. So, why does PCB introduce nonlinearity into the signal? The answer is that the layout of PCB is “spatially nonlinear” relative to the place where the current f ...

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  • How to choose power chip in driver PCB design

    How to choose power chip in driver PCB design

    When designing PCB, it is necessary to choose DC/DC or LDO for power chip design. To put it simply, only DC/DC can be used when boosting, because LDO is a voltage drop type and cannot boost. When the designed circuit has the following requirements for shunt power supply, it is best to cho ...

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  • Differences between OBM,ODM and OEM in processing field

    Differences between OBM,ODM and OEM in processing field

    OBM:OBM(Orignal Brand Manufactuce). That is, the foundries operate their own brands. Because the foundries need a perfect marketing network to support OBM, the cost of channel construction is very high, and the energy spent is far higher than that spent on OEM and ODM, and they often conflict with ...

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  • Permanent magnet brushless motor with controller

    Permanent magnet brushless motor with controller

    The permanent magnet brushless motor with controller, as its name implies, is an all-in-one machine combining controller and motor, and the controller is installed on the upper or side of the motor in a backpack manner. Basic functions Accurate positioning, speed and torque control.Absolute p ...

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  • Driving scheme of brushless DC air cooler

    Driving scheme of brushless DC air cooler

    Functional features: It can be applied to the electric drive of DC brushless air cooler with built-in communication protocol, and can be quickly configured and used.Support input voltage 12V~60V, stable output current 10A and instantaneous current 30A.Operation signal function board can be e ...

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  • Motor driver chip and driver module

    Motor driver chip and driver module

    What are motor driver chips and driver modules? The motor driver chip is a chip integrated with CMOS control circuit and DMOS power device, which can form a complete motion control system with the main processor, motor and incremental encoder. It can be used to drive inductive loads such as DC m ...

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  • What protection does the controller have for the motor?

    What protection does the controller have for the motor?

    What is motor protection? Motor protection refers to the function of protecting the motor when there are problems such as overload, lack of phase, locked rotor, short circuit, overvoltage, undervoltage, leakage and overheating, etc., so as to strive for comprehensive protection for the motor. ...

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  • Difference between motor driver with and without position sensor

    Difference between motor driver with and without position sensor

    . The starting and driving methods of motor can be roughly divided into two types: driving with position sensor and driving without position sensor. Motor driving with position sensor: a motor driving method that requires sensors to detect the rotational speed and rotational position of t ...

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  • How to choose sine wave or square wave driver

    How to choose sine wave or square wave driver

    No matter DC motor or AC motor, there are two different wave band drivers, sine wave and square wave, which could both be matched with the motor. So what’s the difference between these two drives? The following will start with the advantages and disadvantages of the two types of driver ...

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