Texas Instruments announced a variety of new energy car solutions to help zero emissions

　　Author ：Iflowpower – Portable Power Station Supplier

Traditional cars are experiencing new changes, the industry is called new three, and there is also a new four-generation proposal, no matter how defined, it is not allowed to open more energy efficient, smarter, and safer change focus. The car is inseparable from electronic components. The larger the development speed, the greater the challenges brought by electronic components, and at the same time, it has brought more new opportunities for semiconductor companies.

Texas Instruments (TI) As an embedded processor and analog semiconductor industry leader, more than 100,000 customers in more than 30 countries around the world have more than 100,000 products for the market. People who know TI know that in recent years, they not only provide safe and reliable components, but also provide better system solutions for the market. This year, it is just the 35th year of the development of TI Auto Division.

It is a new change in the automotive industry. TI's goal is to provide more efficient, energy-saving and safe solutions for new energy vehicles and powers. Not long ago, at the press conference of vehicle electrification, Mr.

Zhang Lei, General Manager of China Auto Business Department, and Mr. Wang Lei, and Mr. Mi, and media friends, and media friends shared TI in the future development initiatives that accelerated the automotive system.

At the same time, 5 reference design and new products are released. These include: - mixing, electric vehicle battery management system reference design - TMP235-Q1 High precision temperature sensor - ECC21710-Q1 Isolated SiC and IGBT gate driver - mixing, electric vehicle traction inverter power level reference design - applicable For DC fast charging, SiC-based 3-phase two-way power conversion reference design diagram: Zhang Lei, Texas Instrument (TI) General Manager of China Auto Business Department; Figure Right: Teacher Ying, Texas Instrument (TI) China Automotive Electronic Technology Application Manager and other new products: BQ79606-Q1 Precision Monitor BQ79606-Q1 is a precision monitor with an integrated hardware protector for electric vehicle drive systems. Through the technical stack of chrysanthemum chains, large battery pack configuration in the electrified transmission system is supported.

Module from 48V, 400V, 800V or even 1.5kV battery pack. It can achieve a voltage measurement accuracy of less than 1%, and Mr.

Teacher said that this is a very high indicator. In addition, in the electrical cell voltage measurement, do every channel synchronization work. In addition to a separate battery in each BQ79606, the voltage measured ADC, there are independently auxiliary ADCs, which can provide individual temperature measurement channels.

The electrical cell voltage measurement, temperature measurement, and communication between the chip can meet the ISO26262ASILD safety level. New products: 65V input, PSR flycase converter, integrated 100V / 1.5afet, Mr.

LM5180-Q1, introduced several characteristics of the flyback converter, one. The converter has high integration, internal Switch tube including 100V / 1.5A, externally without power level devices.

Regardless of the design or system costs, it is effective to help customers; the second is to make a winding of a separate optocoupler isolation device or an additional transformer, simply, reduce the area; its third is linearity Very good power conversion efficiency. Driven by 12V automotive battery, reduce the risk of failure in intermediate power rails. Subsequently, Mr.

Master explained that more power supply in the market is two-stage power conversion, from 12V - 5V - DC / DC, which is not only a certain impact on the stability of the battery voltage, but also for the entire system cost Bring a certain burden. To deal with the three-phase SIC reference design, the three-phase SIC reference design, which is currently more common, is a constant electric vehicle charging method is an AC charging system. The power grid is provided through the EVSE standard charging pile, providing AC voltage (AC), through OBS (AC / DC conversion) Makers), charging battery packs continuous high voltage current.

The charger power can reach approximately 1.44kW to 22kW, and the charging is 5 to 15 hours. And another DC fast charging system, that is, from the power grid to DC fast charging pile, directly enter the battery pack in the OBS directly with high voltage DC power supply.

The charger power is 20KW to 340KW, only 15 to 30 minutes. So fast, especially to inject high-power into batteries, what challenges from security and how to deal with it? Mr. Teacher said: "This design challenge requires charging system to provide higher energy density and power conversion efficiency.

From now on, V2G is the direction of the current or next technology development, that is, from the power grid to DC fast charging pile, providing high-voltage DC power supply, bypass OBC, directly use a high-voltage DC power supply Charge the battery pack in the OBS. Ask our OBC and the entire DC charging system to support two-way power transformation. "For this reason, TI latest reference design is a three-phase AC / DC two-way conversion based on silicon carbide.

Work efficiency, power conversion efficiency can reach 98%. And based on silicon carbide technology, the maximum power density and energy density can be provided on top of the current power device technology, meet the COMBO-1 electric vehicle charging standard, and 800V DC charging can output up to 10 kW output power. Mr.

Teacher finally summed up, Ti has a rich electronic vehicle design expertise and experience, including simulation and embedded processing, and continuous innovation, these products and programs released today are more efficient, Safer, more environmentally friendly direction, provide precision monitoring and protection for automobiles to zero emissions. Medium-grid.