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HEV/EV - Бортовые (ОВС) и беспроводные зарядные устройства

Описание:
This verified design can accurately measure current across a range of 30 A on a bus that carries up to 36-V common mode voltage over a range of -40°C to +85°C. This design can measure current from 0 A to 30 A with a grounded reference or -30 A to 0 A with a 16-V reference. The design sums the output of two INA250A2 devices and generates a ground-referenced output voltage. The INA250 is a voltage-output, current-sensing amplifier family that integrates an internal shunt resistor to enable high-accuracy current measurements.

Возможности:

• Compact layout with good thermal properties • 30A Sustained current measurement with parallel integrated shunt current sense amplifiers • Able to configure for full-range positive, full-range negative, or partial-range bidirectional current measurement • This circuit design is tested and includes documentation, data, and layout files. • Compact layout with good thermal properties • 30A Sustained current measurement with parallel integrated shunt current sense amplifiers • Able to configure for full-range positive, full-range negative, or partial-range bidirectional current measurement • This circuit design is tested and includes documentation, data, and layout files.

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The TIDA-01255 design is built for isolated CAN communication, which is widely used in automotive environments. In hybrid and electric vehicles (HEV/EVs), a complete high-voltage network is floating with respect to the chassis ground. Isolation is required for the power and communication channels interfaced between floating high- to low-voltage systems. The TIDA-01255 design supports applications with a simple isolated transformer driver to transfer power. This TI Design has a low-transmission delay, which reduces the loop delay and supports higher baud rates of the CAN.
Возможности:

Flexible high-speed CAN communication Low loop delay (typically 136 ηs) to support high-speed arbitration rates 750-mW power transfer with 3-kV isolation ±70-V bus fault protection Compliant with ISO 11898-2 CAN standard

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  • Топология платы
Описание:
This reference design is a low BOM design that has good coverage of automotive interlock connection diagnosis. In hybrid or electric vehicles (HEV/EVs), battery management systems, traction inverters, DCDC converters, onboard chargers, and other subsystems that operate at high voltages need to have interlock. Interlock is a current and voltage loop mechanism used to detect tampering or opening of the high-voltage equipment or service disconnect switch.This design covers generating and monitoring mechanism of high voltage interlock system.
Возможности:

Unidirectional interlock system Tristate operation with unidirectional system Wide coverage of interlock loop fault diagnosis >97% accurate low-side current sense at > 5mA Protection for automotive output line faults

Документация:
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Описание:
This reference design shows how to detect current from the mA-to-KA range using a busbar-type shunt resistor. The increasing demand of high-capacity batteries in electric vehicles (EVs) and hybrid electric vehicles (HEVs) drives the requirement for larger current spans and highly-accurate current sensors. Obtaining a good accuracy over three decades (mA to A, 1 A to 100 A, and 100 A to 1000 A) is quite challenging due to large amounts of noise in the system. This design solves this problem by using a high-resolution analog-to-digital converter (ADC) and high-accuracy current shunt monitors from TI.
Возможности:

Full-scale accuracy of: 0.02% full-scale range (FSR) for < 20A and < 0.05% FSR for 20A to 1500A at 25°C 0.1% FSR for < 20A and0.25% FSR for 20A to 1500A at 50°C Suitable for 50mA to 1500A range current measurement; configurable to varied current spans High-side sensing and low-side sensing Supports bi-directional current Bi-directional current measurement: -1500A to +1500A

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Описание:
Vienna rectifier power topology is used in high power three phase power factor (AC-DC) applications such as off-board electric vehicleEV chargers and telecom rectifiers. Control design of the rectifier can be complex. This design illustrates a method to control the power stage using C2000™ microcontrollers. The hardware and software available with this design helps accelerate your time to market. The Vienna rectifier power topology is used in high power three phase power factor correction applications such as off-board electric vehicle charging and telecom rectifiers. This design illustrates how to control a Vienna rectifier using C200-MCU. Learn more about what C2000 MCUs have to offer for electric vehicle applications

Возможности:

Greater than 98% peak efficiency Less than 2% THD at full load and low line powerSUITE software support for easy adaptation of software for a customized power level SFRA enables in circuit verification of control loop designed Up to 2.4KW design with three phase 400Vac VL-L Input

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  • Топология платы
Описание:
Resonant converters are popular DC-DC converters frequently used in server, telecom, automotive, industrial and other power supply applications. Their high performance (efficiency, power density, etc.), improving requirements of the various industry standards, and the ever increasing power density goals have made these converters a good choice for medium to high power applications. This design implements a digitally controlled 500W two phase interleaved LLC resonant converter. The system is controlled by a single C2000™ microcontroller (MCU), TMS320F28379, which also generates PWM waveforms for all power electronic switching devices under all operating modes. This design implements a novel current sharing technique to accurately achieve current balancing between phases.
Возможности:

Digitally controlled two phase interleaved LLC resonant DC-to-DC converter Excellent current sharing between phases without any additional hardware Peak efficiency: 94.5%. Efficiency > 90% for all loads above 10% of rated load powerSUITE support for easy adaptation of software for a customized power level Fault protection: phase/output over-current, output over-voltage, and input under-voltage and overvoltage Phase shedding with programmable limits

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Interleaved Continuous Conduction Mode (CCM) Totem Pole (TTPL) Bridgeless Power Factor Correction (PFC) is an attractive power topology with use of high band-gap GaN devices, because of high efficiency and reduced size of the power supply. This design illustrates a method to control this power stage using C2000™ MCUs and the LMG3410 GaN FET module. Adaptive dead-time & phase shedding methods are implemented for improved efficiency. The Non- Linear Voltage Compensator is designed to reduce overshoot and undershoot during transients. A software phase locked loop(SPLL) based scheme is chosen to drive the totem pole bridge accurately. The hardware and software available with this design helps accelerate your time to market.
Возможности:

AC Input (90-230Vrms), 50-60Hz and 3.3KW rated power at high line 98.75% peak efficiency and less than 2% Total Harmonic Distortion (THD) powerSUITE support for easy adaptation of the design for user requirement In built frequency response analyzer (SFRA) for verification and design of control loops Low zero crossing distrotion Illustrates Adaptive dead-time, Phase Shedding and Non Linear Voltage Compensator implementation

Документация:
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Описание:
This design is a digitally controlled, two phase interleaved, 700W power factor correction converter with added power metering functionality. A C2000™ Piccolo™ microcontroller is the controller for the two 180° phase shifted boost power stages that comprise the power factor correction converter, and, additionally, it monitors the line and neutral voltage waveforms to implement power metering functions. This design is able to achieve 97% efficiency and 1.5% THD at full load with power factor greater than 0.98. By minimizing power loss in the power stage, reducing reliability impacts of harmonic distortion, and providing near unity power factor, this design is a great choice for off-line applications and AC/DC power supplies.

Возможности:

Full digital control of dual interleaved PFC power converter topology Universal input of 95 VAC to 265 VAC 400 VDC bus output operating up to 700 W Power Factor of 0.99 at 200 KHz switching frequency and 1.5% THD at full load Supports power monitoring of rectified input voltage, RMS input voltage, RMS input power, and input line frequency Fully-functional evaluation board includes software, hardware design files, quick start graphical interface and step-by-step documentation. NOTE: Software for this board can be found inside the controlSUITE™ software package. Download controlSUITE at http://www.ti.com/tool/controlsuite. Once installed, navigate to "High Voltage Interleaved PFC Kit" under the Development Tools -> Digital Power section.

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TIDM-PSFB-DCDC – референс дизайн полномостового 600 Вт DC-DC преобразователя со сдвигом фаз с цифровым управлением. Сдвигом фаз управляет микроконтроллер Picolo семейства C2000, обеспечивая синхронное выпрямление и управление импульсным током. Микроконтроллер реализует высокопроизводительное управление в режиме импульсного тока без внешних поддерживающих схем, что отличает эту реализацию от остальных микроконтроллерных решений. Этот дизайн способен обеспечить высокую эффективность в широком диапазоне нагрузок с пиковой эффективностью, превышающей 95%, поддерживая при этом  ZVS переключения во всем диапазоне нагрузок. Поддерживается графический интерфейс пользователя для первичной оценки функциональности платы. Дизайн обеспечивает полный комплект необходимой документации.

 

Возможности:

  • Полностью микроконтроллерное управление полномостовым DC-DC преобразователем со сдвигом фаз;
  • Вход 400 В DC, выход 12 В 50 А;
  • Управление в режиме импульсного тока без внешних схем;
  • Синхронное выпрямление для увеличения энергоэффективности;
    Адаптивное отключение при нуле напряжения (ZVS) во всем диапазоне нагрузок;
  • Защита от повреждений, включая низкое и высокое напряжение на входе, перегрузка по току и напряжению на выходе.

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Описание:

Это решение замкнутого токового трансдюсера с однополярным питанием разработано для измерения постоянного, переменного и импульсного токов. Решение обеспечивает гальванически изолированное измерение токов до 55 А до достижения насыщения и включает в себя встроенный индукционный датчик.

Возможности:

  • Диапазон измеряемых токов до 55 А;
  • Встроенный индуктивный сенсор;
  • Чувствительность 41,1 мВ/А;
  • Гальванически изолированный токовый трансдюсер.

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