Author Archive: ruby

MIPI 버스의 첫 번째 이해

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스마트폰의 출현으로 휴대전화는 더 이상 통화를 위한 도구가 아니라 고해상도 디스플레이,

고해상도 사진, 고속 데이터 다운로드 및 전송, 고성능 그래픽 및 소프트웨어 처리 기능을 달성할 수 있습니다.
내부적으로는 칩과 모듈 간의 데이터 전송 속도의 기하급수적인 증가를 촉진하는 반면,

설계를 단순화하고 칩과 모듈 간의 호환성을 향상시키기 위해 통합 인터페이스 표준도 주요 문제입니다. .

개발 동향.
그래서 MIPI가 탄생했습니다.
MIPI(Mobile Industry Processor Interface)는 2003년 ARM, Nokia, ST, TI 및 기타 회사에 의해 설립된 동맹입니다. 목적은 카메라,

디스플레이 인터페이스, 무선 주파수/베이스밴드 인터페이스 등과 같은 휴대폰 내부 인터페이스를 표준화하는 것입니다. ., 따라서 휴대폰 디자인을 줄이고 복잡성과 디자인 유연성을 높였습니다.
MIPI Alliance에는 카메라 인터페이스 CSI,

디스플레이 인터페이스 DSI, 무선 주파수 인터페이스 DigRF,

마이크/스피커 인터페이스 SLIMbus 등과 같은 일련의 휴대전화용 내부 인터페이스 표준을 정의하는 다양한 작업 그룹이 있습니다.
통합 인터페이스 표준의 장점은 휴대폰 제조업체가 필요에 따라 시장에서 다양한 칩과 모듈을 유연하게 선택할 수 있어 설계와 기능을 더 빠르고 편리하게 변경할 수 있다는 것입니다.

Energiatároló rendszer és alkatrészei

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Az energiatároló rendszer alapvető feladata az energiakínálat és -kereslet közötti időbeli vagy helyi különbségek leküzdése.
Ennek az eltérésnek két esete van, az egyiket az energiaigény hirtelen változása okozza, azaz csúcsterhelési probléma áll fenn.
Mivel egy energiatároló rendszer beruházási költsége viszonylag alacsonyabb, mint egy csúcsterhelésű erőmű építésének,

bár az energiatárolónak lesznek tárolási veszteségei, mégis csökkentheti az üzemanyagköltségeket,

mivel a tárolt energia többletenergia vagy az erőműből származó új energia. .
A másik olyan okokra vezethető vissza, mint a primer energia és az energiaátalakító eszközök

Az energiatároló rendszer (eszköz) feladata az energiakibocsátás kiegyensúlyozása, vagyis nem csak az energiakibocsátás csúcsának csökkentése,

hanem a kibocsátás feltöltése is. kimenet. vályú

Why use an inverter in a solar photovoltaic power generation system?

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The principle of solar photovoltaic power generation is a technology

that directly converts light energy into electrical energy by utilizing the photovoltaic effect of the semiconductor interface.
The key component of this technology is the solar cell.

The solar cells are packaged and protected in series to form a large area solar cell module

and then combined with a power controller or the like to form a photovoltaic power generation device.
The whole process is called a photovoltaic power generation system.

The photovoltaic power generation system consists of solar cell arrays, battery packs, charge and discharge controllers,

solar photovoltaic inverters, combiner boxes and other equipment

An inverter is a device that converts direct current to alternating current.
Solar cells will generate DC power in sunlight, and the DC power stored in the battery is also DC power. However, the DC power supply system has great limitations.

AC loads such as fluorescent lamps, TVs, refrigerators, and electric fans in daily life cannot be powered by DC power.
For photovoltaic power generation to be widely used in our daily life, inverters that can convert direct current into alternating current are indispensable.

As an important part of photovoltaic power generation,

the photovoltaic inverter is mainly used to convert the direct current generated by photovoltaic modules into alternating current.
The inverter not only has the function of DC-AC conversion,

but also has the function of maximizing the performance of the solar cell and the function of system fault protection.

How do I negotiate cooperation with foreign designers

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First of all, it must be said that the cooperation

here is not an outsourcing or employment relationship,

but a joint project,

and then the income is distributed according to the agreed proportion.

The previous article mentioned that

I have registered a Hong Kong company facing overseas.

In fact, the only purpose of this company is to discuss cooperation,

and it has no other use for the time being,

because personal identity is sometimes very limited.

Since it is a long-distance cooperation,

and they have never met each other,

it is also a manifestation of sincerity to upgrade the integrity of the cooperation from verbal trust

to the legal level.

Why do I have to go through such troubles?

As a freelancer, in addition to limited energy,

the boundary of ability is also a real problem that has to be faced.

I have to constantly discover various possibilities,

and then quickly verify

whether it is necessary to dig deeper.

In this case, help is necessary.
The most immediate problem to find people is the cost of employment.

Some people ask me is this worth financing? First of all,

it’s not worth it, and secondly,

I never thought of taking the initiative to find money.

After all, they are all small independent projects.

I am still a follower of the Basecamp model.

Therefore, the most appropriate way is to find partners,

exchange skills, and jointly generate income.

This model is very common in foreign countries,

with the lowest cost and flexibility.

But the biggest premise

may be how to make the other party recognize and trust you,

especially for remote cooperation.

If it is not common to have a great consensus and enthusiasm for the project,

I am afraid that it is difficult for ordinary people to spend time

and cost on an issue with uncertain prospects.

Photovoltaic inverter market analysis and development trend

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Usually, the process of converting AC power into DC power is called rectification.
The circuit that completes the rectification function is called a rectifier circuit.
The device that realizes the rectification process is called a rectifier device or a rectifier.
Corresponding to it,
The process of converting DC power into AC power is called inverter, and the circuit that completes the inverter function is called inverter circuit.
The device that realizes the inverter process is called an inverter device or an inverter.
Photovoltaic inverters are inverters that can convert the variable DC voltage generated by photovoltaic solar panels into AC frequency AC power.
It can be fed back to the commercial transmission system, or for use in off-grid grids.
It is one of the important system balances in the photovoltaic array system.
It can be used with general AC powered equipment.
The inverter structure is composed of input circuit, main power transformer circuit, output circuit, auxiliary circuit, control circuit and protection circuit.

MOSFET delivery time is extended! The current labor shortage in Malaysia’s semiconductor industry

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According to a Reuters report on the 13th, Malaysia has recently faced a shortage of manufacturing workers,

especially foreign labor, and many companies, including semiconductor companies,

had to reluctantly suspend orders and suffered huge losses.
According to local interviews with Reuters, local government,

business and industry sources said that although Malaysia has eased restrictions on the entry of overseas workers,

due to the efficiency of approval and disputes with labor-exporting countries over worker protection issues, overseas workers have not yet reached a large scale. arrival.
According to Reuters, citing local data,

Malaysia currently has a labor shortage of at least 1.2 million,

including 600,000 in the manufacturing industry, 550,000 in the construction industry, and 120,000 in the palm oil industry.

Among them, the semiconductor industry needs at least 15,000 people.

Wong Siew Hai, president of the Malaysian Semiconductor Industry Association, told the agency that chip manufacturers had to stop taking orders,

and that jobs in the industry were not attractive to locals, and many new employees would lose their jobs within half a year.
The industry pointed out that Malaysia is a global semiconductor production center.

Infineon, ON Semiconductor, STMicroelectronics, NXP and other index integrated component factories (IDMs) have set up factories in the local area,

focusing on power semiconductors such as MOSFETs.

At this stage, the supply of MOSFETs continues to be tight, and the local integrated component factory in Malaysia is unable to undertake new orders due to lack of labor,

which may make the MOSFET delivery time stretch again.
Secondly, Malaysia is also one of the major centers of global packaging and testing. According to statistics,

Southeast Asia has a market share of 27% in the global packaging and testing market, of which Malaysia occupies half of it, including ASE, Tongfu Microelectronics,

Traco Power Releases Open Frame 180W Power Supply Focusing on Medical Applications

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The leakage current is below 300µA, making the power supplies suitable for body floating applications.

Efficiency can be up to 94%, which fosters a high power density and a small design.

The units operate from -40°C to 85°C with derating happening at 50°C and above.

In natural convection environments, the TPI 180 and TPP 180 can deliver 150 Watt. With forced-air cooling, the delivery in power rises to 180 Watt.

The power supplies can deliver up to 220 Watt peak power for 5 seconds.

The EMC is dedicated to its uses in the industrial and medical fields.

These power supplies come in compact 3” x 2” or 3.6” x 2.44” packages
I/O isolation 3000 VAC, with a rating for 250 VAC working voltage
Risk management process ISO 14971 with the risk file
Acceptance criteria for electronic assemblies IPC A 610 Level 3
Active power factor correction >0.9
Operates up to 5000m altitude
The compact size and design allow for space-conscious uses as well as for the more demanding power and safety needs of industrial and medical devices.

The TPI 180 and TPP 180 come with up to 5-year manufacturer warranty.