1, kitchen, bathroom to install small water treasure, hot water comes fast, more convenient to use. 1 The wall of the balcony is best to use ceramic tiles, which are more waterproof than paint. 1 Conditions permit, you can design a sink in the balcony to wash dirt. 1 Group buying actually can not save a few money, buy no sell fine, to believe that the sky will not be empty 鉼.
2, what is home improvement precautions -- new house decoration precautions Floor decoration ground is also a place to pay attention to in the decoration, especially the bathroom. Because the bathroom is very wet, you must choose non-slip waterproof materials when buying floor tiles. Here, I would like to remind youYou, each batch of floor tiles will be different. Buying more pieces when you buy is not enough. The issue of preserving the switch socket is also a very minor detail.
3, there are some common sense in home decoration that we need to know. When buying a mirror, consider the position of the mirror headlight. If you do not want to install the mirror headlight for the time being, the size of the mirror should be able to cover the line reserved for the mirror headlight. Put the washing machine on the balcony to make a small cabinet, convenient to put some sundries, such as washing powder in the sundries. Both beautiful and practical.
4, decoration needs to pay attention to the small details of the selection of floor tiles we are in the ground decoration,Method to ensure that the hole wall can be uniformly plated with copper); For the power supply or ground wire hole, you can consider using a larger size to reduce the impedance.
2, in the range of ravg 0~ 0.08m, the output power increases first and then decreases with the increase of coil turns; In the range of ravg 0.08~ 0.4m, the output power decreases first and then increases and then decreases with the increase of coil turns. For a fixed operating frequency, the quality factor Q mainly depends on the shape and size of the coil and the material used. Standard coil technology (such as wire winding coils, PCB coils) generally specifies qualityBecause of the value.
3, control chip: manage the entire wireless charging process, including voltage regulation, power control, communication and other functions. Power amplifier (PA) : Increases signal strength in order to transmit energy efficiently. Oscillators and modulators: Generate high-frequency AC signals for wireless transmission. Coils: Used to generate or receive electromagnetic fields, are a key part of wireless charging. The requirements of
4, and 18 must be met. Wireless charging products may have two different modes of operation: charging mode and communication mode. In that case, maybe the charging mode uses FCC Part 18, the communication mode uses FCC Part 15, but the premise is that the charging and communication modes are independent of each other. If the charging mode complies with all the relevant provisions of Part 15, the FCC allows the charging mode to replace Part 18 with Part 15.
5, summary Leibur V20W wireless mouse not only in the design of the pursuit of extreme comfort and personalization, but also in the internal technical level to show its innovation and leading position in the field of wireless equipment. From the introduction of wireless charging, to the design of high-performance sensors, precision micromotion and RGB backlight systems, every detailIt reflects Leibo's deep understanding of user experience and the pursuit of cutting-edge technology.
6, the mouse pad corresponds to the wireless charging part of the upper hollow, reduce the thickness, maintain consistency. The wireless charging circuit board and coil are attached to the aluminum base plate. Compare the size of a $1 coin. The back of the magnetic separator is insulated with high-temperature tape, the PCB capacitor position is hollowed out to reduce the thickness, and the back has no components. Wireless charging part, the circuit board is more concise. Giga Device MCU GD32F350K8U6 64K FLASH 8K SRAM. Microcontroller detailed parameters.
Resistors, capacitors, inductors, diodes, triodes, etc., are commonly used components in electronic circuits. Here is a list of the top ten electronic components commonly used in the electronics industry, along with small GOO to know: A: resistance as a worker in the electronics industry, resistance is no one knows no one. Its importance is beyond doubt. It has been said that "resistance is the most used component in all electronic circuits."
The basic electronic components are resistors, inductors, capacitors, two polesTube, transistor, connector, etc. Resistance Resistors can be divided into fixed resistors and adjustable resistors, the difference between them is whether the resistance value is adjustable. Resistors can also be divided into in-line resistors and patch resistors, which are distinguished according to the installation method of the resistance. In addition, according to the material process classification, the resistance can be divided into solid resistance, wire wound resistance, film resistance, sensitive resistance.
Electronic components are: resistor, capacitor, inductor, crystal diode, crystal triode. Resistors We are used to calling resistors, are one of the most commonly used electronic components in electronic devices. Resistance in the circuit is represented by r plus a number, such as: r13Indicates a resistor numbered 13. Capacitor: A capacitor is a component composed of two metal films close together and separated by insulating materials.
Capacitors: used for charge storage, filtering, DC isolation, coupling, etc. Inductors: used to store energy, filter, isolate DC, adjust current, generate magnetic field, etc. Diode: Used for rectification, protection, dimming, thermal sensitivity, etc. Transistor: Used for amplifying signals, switching circuits, voltage regulation, etc. Integrated circuit: It integrates multiple functional components in one body, including digital circuits and analog circuits. LED: Light-emitting diode, used for display, indication, lighting, etc.
The development of electronic components is very rapid, in many fields have applications, the first generation of electronic components is the tube, the tube is very convenient to carry, the appearance is very compact, the consumption of electricity is very little, can be used for a long life, it once caused a sensation in the market. After the appearance of the electron tube is the integrated circuit, the integrated circuit is composed of multiple transistors, the emergence of this product, so that electronic products into the miniaturization.
Crystal diode A semiconductor terminal device in a solid-state electronic device. The main characteristic of these devices is that they have nonlinear current-voltage characteristics. After halfThe development of conductor materials and technology, using different semiconductor materials, doping distribution, geometric structure, to develop a variety of crystal diodes with various structures and different functional uses. The manufacturing materials are germanium, silicon and compound semiconductors.
It is not possible from the legal level, because it is easy to interfere with the normal work of other radio waves and radio stations, and it is easy to be used for illegal and criminal acts. But it doesn't matter if we don't get caught.
. Insert each component pin into the printed circuit after tinningThe board corresponds to the position. The pin of each component should be kept as short as possible. 2. Solder each component pin one by one. Solder joints should be small and smooth without virtual welding and false welding. When welding the coil, be careful not to deform the coil. 3. Use a 40-60 cm long multi-strand plastic leather cord as an antenna. One end is welded to the printed circuit board, and the other end is naturally extended.
Choose a 10MHz crystal oscillator because this frequency is suitable for use in medium-wave radios. The positive electrode of the crystal oscillator is connected to a microphone, and the negative electrode is directly connected to the crystal oscillator. The output end of the crystal oscillator should be connected to a transformer, which can be enamelled wireMade by winding on wire, the main purpose is to increase pressure.
A 10mhz crystal oscillator should be used, just right for a medium wave radio. A microphone is added to the positive electrode, and the negative electrode is directly connected to the crystal oscillator. The output end of the crystal oscillator is connected to a transformer (it is enough to wrap a enameled wire on the wire to be able to boost the voltage), and the output end of the transformer has two wires, one is connected to the antenna, and one is connected to the ground (can be connected to the negative battery electrode instead).
One battery, one wire. One end of the wire is connected to one pole of the battery, and the other end tries to touch the other pole of the battery, so that electromagnetic waves can be generated and can be received by the radio! Try it yourself. If you're right, pleaseTake my answer.
Depends on how far you want to shoot. There are FM transmitters for cars in the market, about 30 yuan, a room must be no problem. There are generally three frequencies that can be switched. And get a microphone that amplifies, like a walkman that records, or a computer. Plug the FM transmitter into the headphone output of your walkman or computer.