Mega Source Elec. Co., Limited

Light electronic chip technology: the key forces to give birth to the new space industry 🚦

🚥 The space industry is experiencing amazing growth, with an output value of US $ 388.5 billion in 2021, and is expected to reach $ 540.8 billion by 2026 (Research and Markets). The key drivers for promoting this expansion include decline in launch costs, increased demand for satellite Internet connection, rise in space tourism, rail manufacturing development, and increased climate monitoring applications.

🚥The key technology for the innovation of the new space industry is photon technology. From communication navigation to detecting imaging, optoelectronic chip technology makes it possible for miniature, accurate, reliable and efficient solutions for the harsh space environment. As humans step into space further, optoelectronic technology guides the road as an indispensable bright lamp.

🚥Satellite and interconnected satellite constellations are leading this charge to provide global high -speed Internet access. SpaceX has deployed more than 4,000 Starlink satellites, and as of May 2023, users reached 1.5 million. Laser star links provide higher speed and bandwidth than the frequency frequency link. Free space light communication terminals based on 1064nm laser exchange data between satellites and ground stations.

🚥Amazon plans to launch more than 3,000 satellites by 2029, with a target covering 95%of the world. China plans to establish a government operating constellation consisting of 13,000 satellites. With the number of satellites accounted for more than 67%of the total number of rail objects, effective space flow management is important to prevent collision......

🐉 Learn more:https://www.megasourceel.com/news/light-electronic-chip-technology-the-key-forces-to-give-birth-to-the-new-space-industry.html

How to control the reliability of electronic components during the development process 🤔

Equipment secondary screening

😯 The filtering of components is divided into two types: "first filtering" and "secondary screening". Before the delivery of the component, the filter of the product specifications (general specifications, detailed specifications) of the component before delivery is called "one screening". After the purchase, the use party is called "secondary screening" according to the requirements of the use requirements.

😯At present, the production level of domestic meta -devices is more or less different from the requirements of the development of products. The screening project and stress requirements of the screening of the manufacturer may not necessarily meet the needs of product development.

😯There are not many real "military standards" products in imported components, most of which are still low -end products, and there may be many counterfeit products.

😯The development of products is often very targeted, and components that exist in some failure models must be strictly removed, otherwise they cannot guarantee that the product is reliable to work. These all require us to ensure the quality of components through secondary screening. The secondary screening of components is one of the important measures in the quality control of components, which is of great significance to the reliability guarantee of the product......

🐉 Learn more:https://www.megasourceel.com/news/how-to-control-the-reliability-of-electronic-components-during-the-development-process.html

What are the motor drivers? 🎯

What are the drivers?1.There is a brush motor drive

🎨 The driving method of the DC brush motor is actually driving using the H bridge circuit. The core circuit H bridge plus some necessary peripheral circuits, which jointly forms a DC driver with a brush motor.

🎨The H bridge itself can be used as an integrated circuit or consisting of separate components. The H bridge in the form of integrated circuits is generally used in the application of small and medium -sized power requirements, or there is a required occasion for the circuit area.

🎨The H bridge in the form of separate components is usually used in applications with high power or ultra -high power requirements. It is mainly composed of MOSFET or IGBT transistors.

🎨However, the pin of the MCU cannot directly drive the MOS tube and other components. It is necessary to add a dedicated MOS tube drive chip.

2.Brushless motor drive

🎨The brushless motor is also driven by the H bridge circuit, but every phase of the motor is driven by a semi -bridge circuit. One three -phase brushless motor requires a total of three and a half bridge, not like the DC brush motor drive. Use the whole bridge circuit.

🎨Like the DC motor motor, the brushless motor driver is also divided into integrated circuit forms and separated component forms, but because the brushless motor needs to be replaced, even the form of a separate component only gives the semi -bridge circuit independent. Similar to the figure below, it is a brushless motor drive.

3.Step motor drive

🎨Step motor cannot directly receive work on DC or AC power, and special drives must be connected to use normally.

🎨The controller sends the steps and the direction signal to the step motor drive. The driver converts the stepping pulse signal sent by the controller to the power signal required for the rotation of the motor.

🎨Step motor drives usually have subdivision functions, which can subdivide the steps and currents, so as to achieve more accurate control and lower noise vibration.

🐉 Learn more:https://www.megasourceel.com/news/what-are-the-motor-drivers.html

It is impossible for the United States to create chips. Like Japan, the US semiconductor industry has lost 30 years 🎰

🥪 As the 46th president of the United States, Biden is now anxious. Because since Bayeng came to power, except for arming and war in all parts of the world, Biden has not brought real benefits to the United States, especially the two major pieces of economy and technology.

🥪 Biden pays attention to the so -called "Biden Economics", that is, the suppression of the country has been separated from various countries, and has engaged in a "Angle Act". In the field of science and technology, Biden tried to curb China's scientific and technological development speed through sanctions, as if this can keep the United States always maintain the dominant position of the past.

🥪 But, did Biden really do it? not at all. Especially in the field of technology, Biden now pays attention to the semiconductor industry back to the United States, trying to re -establish a complete semiconductor industry chain in the United States.

🥪 Generally speaking, there are three main links in the semiconductor industry chain: chip design, wafer manufacturing (chip foundry), packaging test. At present, the United States is the world's strongest in the field of chip design, but in the field of wafer production and packaging testing, the United States has no competitiveness. In other words, the United States has completely released this competitiveness more than 30 years ago......

🐉 Learn more:https://www.megasourceel.com/news/it-is-impossible-for-the-united-states-to-create-chips.like-japan,the-us-semiconductor-industry-has.html

Basic principles and applications of voltage -sensitive resistance and thermistor 😎

👑 Voltage sensitivity resistance and thermistor are two common resistors, and their basic principles and applications are different. This article will detailed the basic principles and applications of voltage sensitivity and thermistor.

一、Basic principles and structures of voltage sensor (Varistor)
👑Voltage sensitivity, also known as voltage -sensitive resistance, is an electronic component with non -linear resistance characteristics. It has high resistance when low voltage, and is expressed at high voltage at high voltage. Its working principle is based on non -linear materials and is usually made of semiconductor ceramic materials such as zinc oxide (ZNO).

👑The structure of the voltage -sensitive resistance is generally made of two metal pieces with a layer of zinc oxide ceramics. When the voltage current is applied to the metal sheet, the electrons in zinc oxide ceramics can be made breakthrough, thereby forming a continuous conductivity. This guide circuit will absorb electrical energy under high voltage, effectively protect the connection circuit, and prevent overvoltage from damaging the circuit component.

二、Application of voltage -sensitive resistance
👑1.Overvoltage protection: Voltage sensitivity resistance is an important overvoltage protection element, which is widely used in power equipment, communication equipment and electronic equipment. In the circuit, the voltage -sensitive resistance is connected to the feed line of the voltage sensor or the circuit input terminal, so as to prevent the destruction of the device when the voltage is needed to prevent the overvoltage from being required.

👑2.Langyong protection: Because voltage sensitive resistance has fast response and low distortion characteristics, it is widely used to prevent sudden voltage events such as lightning and wave current to protect various electronic equipment and instruments. In this application, the voltage -sensitive resistance plays a role in a voltage limiter in the circuit, and the high voltage is diverted to the ground line......

🐉 Learn more:https://www.megasourceel.com/news/basic-principles-and-applications-of-voltage-sensitive-resistance-and-thermistor.html

Happy International Women's Day! 🎇🎇🎇

On this 8th of March, we celebrate the resilience, achievements, and contributions of women worldwide, especially those in the electronic components industry. Best wishes and happniess around you everyday! 🌹🌹🌹

https://megasourceel.com

Chip semiconductor science 🎯

🔮 In our daily work and life, we often use various electronic or electrical products, such as computers, mobile phones, television, refrigerators, washing machines, etc.

🔮If we disassemble it, we will have a green board. Everyone knows that this green board is called circuit board. The official name is called the printed circuit board, that is, PCB (Printed Circuit Board, sometimes it is also called PWB, Printed Wire Board).

🔮On PCB, many electronic components are welded, such as capacitors, resistors, and inductors.

There are some black square components. This component is likely to be a chip (English name is CHIP), sometimes blue or black.

Chip is actually a relatively general name.

🔮For electronic devices, it is hidden inside, which is very important. It is equivalent to the engine of the car and the heart of the human person, so it is called "core". From the perspective of form, it is piece by piece, so it is called "film". Combining is "chip".

🔮Generally speaking, the chip is an integrated circuit. The two can be divided between the two and replaced each other......

🐉 Learn more:https://www.megasourceel.com/news/chip-semiconductor-science.html

What are the differences between storage chips and logical chips? How to choose them? 🤔

🍬 Storage chips (Memory Chips) and logic chips are important parts of electronic design and computer architecture, but they have essential differences in structure and function.

🍬 Storage chips are mainly used for data storage. They can be non -prone, such as flash memory, which can save data even after the power supply is closed;Or easy to lose, such as dynamic random access memory (DRAM), data will be lost after power off. The main goal of the storage chip is to provide high -speed, high -density and low -cost data storage solutions.

🍬 Logical chips are integrated circuits for performing logical operations and processing tasks. Programmable logic devices (PLD), such as on -site programming door array (FPGA) and complex programmable logic devices (CPLD), are the category of logical chips. Logical chip is used to perform specific computing tasks, not just store data.

Exterior

1.The type of packaging:

🍿 Storage chips:Common in the forms of SO-DIMM, SSD, Microsd and other forms, mostly used in memory bar or memory cards. Logic chip: Common packaging of PGA, BGA, etc., mostly used for CPU, FPGA, etc.

2.Physical size:

🍿Storage chip:Dimensions (such as NAND or DRAM) and capacity. Logic chip: The size is usually proportional to the complexity, and the processor is larger than the simple logic chip.

structure

🍿 1.Crystal tube layout:Storage chip: Optimize to achieve dense layout for storage cells. Logic chip: The layout of the transistor is more complicated to support a variety of logical functions.

🍿 2.Circuit design:Storage chip: Simple design, high repetitive storage unit array. Logic chip: complex logic doors and circuit design for complex operations......

🐉 Learn more:https://www.megasourceel.com/news/what-are-the-differences-between-storage-chips-and-logical-chips-how-to-choose-them.html

are the differences between storage chips and logical chips? How to choose them?

🐉 Learn more:https://www.megasourceel.com/news/what-are-the-differences-between-storage-chips-and-logical-chips-how-to-choose-them.html

What is electrical noise, where does it come from? 😯

🎯 In daily life, we use the weather as a common means to start and maintain dialogue. In the electronics world, noise can also play similar roles. It always exists and always causes some problems. If a design review meeting is slowing down, but no one is willing to let the conference room, all you need to do is to mention noise, and the discussion should be active in at least half an hour in the next half an hour.

🎯If your latest PCB works very well, but when someone comes to ask you, you don't want to look too confident, just complain about noise. If there is a problem with your printing circuit board and you don't know why, then you are blamed on noise. The noise is always guilty until it is proven to be innocent.

What is noise?

🎯If you want to go, this question is a bit difficult to answer, because you will eventually enter the philosophical field, in the face of "why life is so complicated?" Or "Why can't the total entropy be reduced once every other time?" If you are satisfied with the superficial processing of this theme, the electrical noise is straightforward......

🐉 Learn more:https://www.megasourceel.com/news/what-is-electrical-noise,where-does-it-come-from.html

PNP transistor: features and applications🥸

Bioplastic knot transistor
🌟Modern electrical engineering, in fact, the entire modern world is inextricably linked to the device of transistors. These components also have these two functions and switchs as amplifiers. Although field -effect transistor is currently dominated by the electronics field, the original transistor is bipolar crystal pipes. This device is quickly replaced by the first bipolar transistor to connect the transistor or BJT.

🌟BJT has two basic types: npn and PNP. These letters indicate the arrangement of positive and negative doped semiconductor layers.

🌟NPN and PNP: Why is PNP transistor very important
According to my experience, NPN transistors are more prone to attention than PNP transistors. I thought of a few reasons:
The voltage and current behavior of the NPN transistor (at least in my opinion) is much more intuitive......

💫 Learn more:https://www.megasourceel.com/news/pnp-transistor-features-and-applications.html

Happy Lantern Festival~ 🎉 🎉 🎉

May the warmth and joy of this holiday brighten your life 🤗 🎁

The golden age of customized chips is coming soon 🤑

🤖A few interesting trends can be observed in today's semiconductor industry. On the one hand, the system single chip (SOC) that adopts the most advanced process is becoming more and more expensive regardless of development and production costs; on the other hand, despite the higher cost, more and more companies have selected to design themselves in order to separate competitors to separate their competitors. SOC. For standardized CPU and SOC manufacturers (such as AMD, Intel, Qualcomm), this trend is not good. However, for other industrial participants, such as EDA software developers, IP companies, chip design companies, and wafer factories, it is very good.

🤖At present, several major global trends that drive microelectronics, including 5G, edge computing (in other words, explosive growth of interconnected devices), autonomous driving and software definition cars (SDVs), artificial intelligence (AI), clouds in the cloud Calculation, and high -performance calculation (HPC).

🤖 AI, cloud computing, and similar applications such as HPC will never be too much performance. Their bottlenecks are often limited to the space and power consumption of the data center, not the cost of the hardware itself. And even the edge computing device, or the self -driving and software -defined cars, there are many space that can make good use of more computing performance. But in addition to power consumption and space, they will also be limited by more costs (the number of chips and chips that can be used)......

💫 Learn more:https://www.megasourceel.com/news/the-golden-age-of-customized-chips-is-coming-soon.html

What is RF integrated circuit design?🧐

RFIC design precautions

🪐The RFIC design is very similar to the IC design of the IC design. It is usually a customized process, assisted by one or more EDA tools. Part of the accuracy of the RF IC design is that the parasitic effect and the packaging characteristics have a first -order impact on the performance of the RF circuit. Therefore, RF IC design is usually an iterative process, and the entire IC design process will use EM simulation, parasitic modeling and packaging modeling in large quantities.

LMH3401 is a full difference in the optimization of RF applications.

🪐RF IC design also has performance requirements and restrictions on the "system budget" of key parameters, such as noise coefficient, power, phase noise, harmonic, linearity, etc. The budget was determined by the system -level design team that the team passed the budget restriction and performance requirements to the RF designer responsible for each module in the system map. These modules are further decomposed into topology and circuits. These topology and circuits experience the iteration of design, simulation, optimization and layout simulation by using EM simulation tools that can process IC.

Integrated circuit design restrictions

🪐Because some passive devices (such as inductance and capacitors) are strictly limited by the wafer factory, RF IC designers usually have limited size and value control of these devices. This leads to greater uncertainty in the design, and may need to design and test new elements in the repeated process with foundries to generate components that meet the requirements of the RF circuit.

🌎Learn more:https://www.megasourceel.com/news/what-is-rf-integrated-circuit-design.html

Electronic Components Pizza Carnival Tuesday🎉

Lets' sublimating our taste buds and sense of technology ! A symphony of electronic components with vegetables and sausages added to a piece of cheese circuit board.🍕😋

Find electronic components in: https://megasourceel.com

Transistor Ratings and Packaging (BJT)🎓

💂‍♀️Like all electrical and electronic components, transistors are each subject to voltage and current limitations before they can be damaged. Since transistors are more complex than some other components you're used to seeing at this point, these components tend to have a wider variety of ratings. Below is a blow-by-blow explanation of some typical transistor ratings.

Power consumption

💂‍♀️When a transistor conducts current between its collector and emitter, it also reduces the voltage between these two points. At any given time, the power dissipated by a transistor is equal to the product of the collector current and the collector-emitter voltage. Just like resistors, a transistor's power rating is the amount of power each transistor can safely dissipate without suffering damage.

💂‍♀️Heat is the enemy of all semiconductor devices, and bipolar transistors are more susceptible to thermal damage than most transistors. Power ratings are always based on the temperature of the surrounding air. When transistors are used in high-temperature environments above 25°C, their power ratings must be derated to avoid shortened service life.

Reverse voltage

💂‍♀️Just like diodes, bipolar transistors are rated for the maximum allowable reverse bias voltage across the PN junction. This includes the rated voltage EB of the emitter-base junction V EB the collector-base junction V civil band, and from the collector to the emitter......

🌎Learn more:https://www.megasourceel.com/news/transistor-ratings-and-packaging(bjt).html

2024 New Arrivals in, Mega Is Ready to Meet Your IC Needs!😁

Ten thousands of electronic components are in our warehouses, and we can ship them in 24h once PO confirmed. 🤝

Any RFQ, please feel free to send via email：[email protected]
Or visit our website:https://megasourceel.com for more information!👏