What is a Varistor? How to use varistor correctly?

“Varistors are one of the necessary Electronic components for engineers. Varistors can often be seen in LED switching power supplies or high-power power supply equipment. The transient overvoltage protection provided by the varistor for the circuit system during operation is very important. In fact, in addition to the technical parameters of the overvoltage protection varistor,…

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Robustness evaluation of SiC MOSFET application technology under avalanche conditions

“This article will explore how to evaluate the robustness of SiC MOSFETs under avalanche operating conditions. MOSFET power converters, especially electric vehicle drive motor power converters, need to be able to withstand certain operating conditions. If the device fails during freewheeling conduction or the gate drive command signal is wrong, it will cause the converter…

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Domestic chip giants, release 2 more 6nm 5G chips

Huawei released the first domestic 5nm 5G chip, the Kirin 9000 series, in the third quarter of 2020. However, everyone knows what happened later, and the Kirin chip became a swan song. The other big domestic chip giant Ziguang Zhanrui only released the 6nm chip Tiger Ben T7520 chip, no matter its performance or craftsmanship,…

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Gasgoo 2021 4th Autonomous Driving Forum ended successfully

The “Autonomous Driving Forum” sponsored by Gasgoo target=”_blank”>2021 Fourth Autonomous Driving Forum” was held in Shanghai Auto City Ruili Hotel from July 1st to 2nd, 2021. The conference lasted for two Today, discussions were held around the global development trend of autonomous driving, autonomous driving safety design, China’s L3 autonomous driving function, intelligent network connection,…

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What are the hazards of car chargers_How to choose car chargers

The principle of the car charger is to convert the voltage of 12 volts to 5 volts and then charge the mobile phone. Due to the price limit of the car charger, the circuit design has many defects, and the circuit has almost no protection functions. Failure, it will lead to 12 volts directly into…

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Performance requirements are becoming more demanding. How to design multiple power supply voltages for automotive electronic systems?

“Under the combined action of wide operating voltage requirements, large transient voltages, and large temperature drifts in the automotive environment, Electronic systems are facing severe conditions. This article describes how to design multiple power supply voltages under conditions where performance requirements become more and more demanding. Meet the requirements of different parts of the automotive…

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Taiwan media: Intel’s pain is AMD’s happiness

AMD made a very strong forecast for third-quarter revenue, beating analysts’ expectations, and shares rose more than 15% in after-hours trading, matching Intel’s decline. AMD announced on the 28th that second-quarter revenue was $1.86 billion and earnings per share were 16 cents, which was quite good. AMD CEO Su Zifeng said sales of Ryzen and…

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Ten bottles of Coke without graphics cards will officially increase in price in 2020

The huge price increase of memory and SSD hard drives has caused DIY players to suffer. The rumors of graphics card price increase are not once or twice. The previous analysis of the price increase was mainly due to the increase in the price of DRAM chips, which led to the increase in the price…

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50 key projects of Shanghai Zhangjiang Science City were signed and started, with a total investment of 36.4 billion yuan, focusing on the three major industrial fields of biomedicine, integrated circuits and artificial intelligence

On February 28, 2020, Shanghai Zhangjiang Science City held a ceremony to sign and start construction of key projects. 30 projects were signed, 20 projects were started, and the total investment of 50 projects reached 36.4 billion yuan. Improve the innovation chain, industrial chain, and value chain of Zhangjiang Science City, promote the enhancement of…

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High Efficiency, Ultra-Compact Flyback Power Supplies Utilizing GaN Chipsets

“A new chipset is now on the market, combining a flyback IC solution with a durable 750V Gallium Nitride (GaN) primary-side switch and an innovative high-frequency active clamp solution for mobile phones, Tablets and laptops are designed with new ultra-compact chargers rated up to 110W. “ By Chris Lee, Director of Product Marketing, Power Integrations…

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