The Begining

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As an electronic enthusiast, let us go deep into the world of electronics, starting with information, news, technology and applications, profound knowledge and great changes brought by electronics to the world.

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The introduction and application of audio amplifier

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With the continuous changes in the audio market demand, the audio amplifier design structure has made great progress. When selecting the best audio amplifier IC for a specific application, it is important to have a full understanding of the types of audio amplifiers available and their characteristics. The audio amplifier increases the amplitude of a small signal to a useful level while retaining the details of the small signal, which is called linearity. The better the linearity of the amplifier, the more true the output signal can represent the input signal. As the audio market's requirements for amplifier performance continue to change, audio amplifier circuit structures have made great progress. Therefore, the designer must understand the available audio amplifiers and their characteristics. This is the only way to ensure that the best audio amplifier is selected. In this article, we introduce the most important features of the various audio amplifiers available today: Class A,...
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Precautions when using the force sensor

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Although the force sensor has the characteristics of solidarity and durability, there are still some problems we should pay attention to when it is used.  1. protecting the force sensor from contamination caused by the external environment We should try to set up some "baffles" around the force sensor, and even cover the force sensor with a thin metal plate. This can prevent debris from contaminating the force sensor and certain movable parts, and this "contamination" often affects the weighing accuracy. 2. the connection of the shielding wire and the grounding point should be reasonable All wires leading to or from the display circuit should adopt shielding cables. The connection and grounding point of the shielded wire should be reasonable. If it is not grounded through the mechanical frame, it is grounded externally. 3. avoiding strong heat radiation The force sensor should use hinged copper wires (cross-sectional area of ​​about  50mm 2 ) to form an electrical b...
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IRF640 vs IRF740: What is the difference?

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MOSFET Explained / Description IRF740 is a high voltage N channel MOSFET, the transistor is basically designed for high voltage and high-speed switching applications. The max load voltage this transistor can drive is up to 400V with a maximum load current of 10A. The maximum current in pulse mode is 40A and the on-resistance or (RDS) is 0.55 ohms. The max drain to source voltage of 400V makes it ideal to drive a variety of high voltage loads in electronic circuits.   IRF640 is an N Channel MOSFET designed for high-speed switching purposes. This high-speed switching capability can be very useful in applications where switching speed is crucial, for example in a UPS circuit or in any other application where the user wants to change the load input power from one source to another. The transistor is capable of driving a load of up to 18A and the voltage can be up to 200V with the minimum saturation voltage of only 2V to 4v at its gate. The pulsed drain current is 72A means this MOSFET ...
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