This reference design is a dual string LED driver that implements an operational amplifier based circuit which balances the current in two LED rings. The operational amplifier circuit senses current in a reference string and uses feedback from a mirrored string to bias a MOSFET that egulates the current between the strings. The design uses the TPS92692-Q1 multi-topology LED driver in a boost configuration to drive the LEDs. The TPS92692-Q1 features spread spectrum frequency modulation for EMI performance, analog current adjustment and internal PWM dimming. This design includes adjustable linear thermal foldback using the LMT87-Q1 analog temperature sensor, as well as current limiting, in the event the mirrored string fails open circuit. The design also features two brightness modes. One mode is a full brightness mode ('DRL') and the other is a PWM dimming mode ('Position') which reduces brightness.
This reference design functions from a base of silicon carbide (SiC) MOSFETs that are driven by a C2000 microcontroller (MCU) with SiC-isolated gate drivers. The design implements three-phase interleaving and operates in continuous conduction mode (CCM) to achieve a 98.46% efficiency at a 240-V input voltage and 6.6-kW full power. The C2000 controller enables phase shedding and adaptive dead-time control to improve the power factor at light load. The gate driver board (see TIDA-01605) is capable of delivering a 4-A source and 6-A sink peak current. The gate driver board implements a reinforced isolation and can withstand more than 100-V/ns common-mode transient immunity (CMTI). The gate driver board also contains the two-level turnoff circuit, which protects the MOSFET from voltage overshoot during the short-circuit scenario.
This reference design is an automotive-qualified isolated gate driver solution that drives silicon carbide (SiC) MOSFETs in a half-bridge configuration. This design provides two push-pull bias supplies for dual-channel isolated gate drivers, each providing +15V and –4V output voltages and 1W output power. The gate driver is capable of 4A peak source current and 6A peak sink current. The driver implements reinforced isolation and can withstand 8kV peak isolation voltage and 5.7kV RMS isolation voltage as well as common-mode transient immunity (CMTI) of over 100V/ns. This reference design includes a two-stage shutdown circuit that protects the MOSFET against voltage overshoot during short circuit conditions. DESAT detection threshold and second stage shutdown delay time are configurable. This design uses an ISO7721-Q1 digital isolator to connect the fault and reset signals. The overall design adopts a compact double-layer PCB board of 40mm × 40mm.
This proven reference design outlines how to implement a three-level, three-phase DC/AC T-inverter stage based on SiC. The higher switching frequency of 50KHz reduces the size of the magnetic components of the filter design and therefore increases the power density. By using SiC MOSFETs that reduce switching losses, higher DC bus voltages up to 1000V and lower switching losses are ensured, resulting in peak efficiencies of 99%. This design can be configured as a two- or three-level inverter. The system is controlled by a single C2000 microcontroller (MCU), TMS320F28379D, which generates PWM waveforms for all power electronic switching devices in all operating modes.
This reference design is for a multiparameter front end of a patient monitor that measures vital sign parameters like ECG, heart rate, SpO2 and respiration.it uses biosensing front end integrated circuits like the AFE4403 and ADS1292R devices, to measure these parameters. It also uses three TMP117 sensors to accurately measure skin temperature. This design can interface with the pace detection module to detect the pace pulse. The design also uses an isolated UART connection to transfer data to a computer. The entire front end subsytem runs on a rechargeable 3.7V li ion battery.
This fully tested, USB power delivery reference design is a high efficiency, high power density, AC/DC adapter solution with a wide input voltage range (85 - 265VAC) for laptop adapters and smartphone charger applications. It adopts active-clamp-flyback topology controlled by TI’s newest ACF controller UCC28780 as the mainly power supply stage. This design uses TPS25740B, TI’s PD source controller, to achieve a full PD 2.0 function. The design achieves a peak efficiency of 94% at a very high switching frequency. The design’s power density is increased to 30 W/in3, which is much higher than traditional solutions.
New, completely wireless earbuds are charged by the battery inside their carrying case—a unique design that requires small solution sizes and efficient power components. Additionally, the large demands in this market are increasing the need to deliver equivalent functionality more economically. This ultra-low power reference design exhibits a charging case battery and boost converter powered from USB input.
The SimpleLink™ Sub-1GHz Sensor to Cloud Reference Design demonstrates how to connect sensors to the cloud over long-range sub-1GHz wireless networks for industrial environments such as building control and asset tracking. This design provides a complete end-to-end solution to create sub-1GHz sensor networks using Internet of Things (IoT) gateway solutions and cloud connectivity. The gateway solution is based on the low-power SimpleLink Wi-Fi® CC3220 wireless microcontroller (MCU), which hosts the gateway application and the SimpleLink sub-1GHz CC1310 wireless MCU as the MAC-CO processor. This reference design also includes a sensor node example application running on the SimpleLink dual-band CC1350 wireless MCU. The design comes pre-integrated with TI 15.4-Stack software, which is supported as part of the SimpleLink CC13x0 software development kit (SDK), providing a complete sub-1GHz star network solution. How fast is your connection?
This reference design shows how to create a battery-powered electronic smart lock using integrated Wi-Fi®. This design shows how the SimpleLink™ Wi-Fi CC3220S wireless MCU (SoC) can be used as the main system controller and network processor to create a highly integrated design. The TIDC-01005 reference design combines the CC3220S and DRV8837 1.8A low voltage brushed DC motor driver to form the core of a Wi-Fi enabled electronic smart lock design. It also uses the SimpleLink low-power Bluetooth® CC2640R2F wireless MCU to demonstrate Wi-Fi configuration over BLE. The design utilizes the LaunchPad™ Development Kit and the DRV8837EVM, making reproduction and evaluation easy. The software used for TIDC-01005 is based on the SimpleLink SDK, enabling maximum portability within the SimpleLink platform.
The SimpleLink™ Multi-Standard CC2650 Remote Control Reference Design is an all-in-one solution for the development of voice-based Bluetooth® Low Energy, ZigBee® RF4CE™ or multi-standard remote control. This reference design shows the recommended decoupling and RF layout for optimal RF performance. This design uses discrete components for the balun and filter, as well as an inverted F-shaped PCB antenna to provide good performance at low cost.
The new SimpleLink™ multi-standard SensorTag kit helps you realize your Internet of Things (IoT) product ideas. The kit contains 10 low-power MEMS sensors in tiny packages that are expandable using DevPacks, making it easy to add your sensors or actuators. Connect to the cloud via Bluetooth® and get sensor data online in three minutes. SensorTag works right out of the box with iOS and Android apps, so no programming experience is required to get started. The new SensorTag is based on the CC2650 wireless microcontroller (MCU) and consumes 75% less power than previous Bluetooth products. Therefore, the SensorTag kit can be battery powered and a coin cell battery will last for many years. Bluetooth SensorTag contains iBeacon technology. As a result, your phone can launch apps and customize content based on SensorTag data and physical location. Additionally, SensorTag kits are enabled via ZigBee® and 6LoWPAN technologies. For more information, visit www.ti.com/sensortag .
With this design, users of the OV788 ultra-low-power video compression chip can easily implement real-time streaming of audio and video data over Wi-Fi®. It demonstrates a single-chip implementation on the SimpleLink™ CC3200 Wi-Fi wireless microcontroller that supports RTP video streaming and Wi-Fi connectivity via 802.11 b/g/n from any smartphone, tablet or computer on the local network network for data transmission. This design implementation takes advantage of the CC3200 Internet-on-a-chip™ solution's ease of debugging to Wi-Fi networks and advanced low-power modes, making it ideal for a variety of Internet of Things (IoT) applications, such as battery-powered in smart homes. Intrusion cameras, door locks, video doorbells and 360 multi-camera.
TI's TIDC-EVSE-WIFI validated reference design details how to implement a J1772-compliant Level 1 and Level 2 Electric Vehicle Service Equipment (EVSE) solution with added Wi-Fi® functionality. The CC3100 network processor allows highly embedded devices such as EVSE to easily connect to existing wireless networks or directly to the device. By integrating this functionality into the EVSE, the design enables remote power monitoring and control of the charge status of connected electric vehicles.
This reference design uses multiple microphones, a beamforming algorithm, and other processes to extract clear speech and audio amidst noise and other clutter. The rapid increase in applications that are used in noise-prone environments for voice activated digital assistants creates demand for systems that extract clear voice from noisy environments. The reference design uses a microphone array and a sophisticated signal processing to extract clear audio from noisy environments.
This processor-based reference design helps speed time to market and helps customers design cost-effective human-machine interface (HMI) solutions for electric vehicle (EV) charging infrastructure or EV power supply equipment (EVSE). This reference design demonstrates the two-dimensional (2D) Qt graphical user interface (GUI) common to EVSE HMI, as well as TI processor capabilities for software-rendered graphics. The AM335x processors provide scalability and a variety of processing speeds and compatible software to meet the needs of low-end to high-end applications. They also provide ample connectivity, including key peripherals required for EVSE HMI such as universal asynchronous receiver/transmitter (UART) and CAN).
This reference design uses multiple microphones, a beamforming algorithm, and other processes to extract clear speech and audio amidst noise and other clutter. The rapid increase in applications that are used in noise-prone environments for voice activated digital assitants creates demand for systems that extract clear voice from noisy environments. The reference design uses a microphone array and a sophisticated signal processing to extract clear audio from noisy environments.
This reference design demonstrates how our single-chip millimeter wave (mmWave) technology can be leveraged for reliable long-distance sensing in traffic monitoring and other applications. This reference design can use the IWR1642BOOST Evaluation Module (EVM) or the IWR1843BOOST Evaluation Module (EVM) and integrate the complete radar processing chain onto the IWR1642, IWR6843 or IWR8143 device. The processing chain includes analog radar configuration, analog-to-digital converter (ADC) capture, low-level FFT processing, and high-level clustering and tracking algorithms. This reference design is designed to be built on top of our mmWave SDK for a centralized software experience that includes APIs, libraries and tools for evaluation, development and data visualization.
TI Design TIDEP-0091 highlights strategies for power optimization of IWR14xx 76- to 81-GHz mmWave sensors in tank level-probing applications, displacement sensors, 4- to 20-mA sensors, and other low-power applications for detecting range with high accuracy in a minimal power envelope. In these applications, the system often operates on a low-voltage data line that provides less power than the operational power consumption. Duty cycling is critical to reducing the average power to meet the power input restrictions. Power optimization is achieved through MSP432 external duty cycling the IWR14xx device for periodic sensing. Additionally, this TI Design provides a sample configuration for single-dimensional range detection.Read more about fluid-level sensing using 77-GHz millimeter wave (SPYY004).Watch the introduction to level sensing (video).
The TIDEP-0092 reference design provides a foundation for short-range radar (SRR) applications using the AWR1642 evaluation module (EVM). This design allows the estimation and tracking of the position (in the azimuthal plane) and velocity of objects in its field of view up to 80 m, travelling as fast as 90kmph. The AWR1642 is configured to be a multi-mode radar, meaning that, while it tracks objects at 80m, it can also generate a rich point cloud of objects at 20m, so that both cars at a distance, and smaller obstacles close-by can be detected. Learn more with the TI Resource Explorer for Short Range Radar.
This reference design demonstrates the use of IWR6843, which is a single-chip mmWave radar sensor with integrated DSP for an indoor and outdoor people counting application. This reference design uses the IWR6843ISK evaluation module (EVM) and integrates a complete radar processing chain onto the IWR6843 device. This solution can detect up to 250 objects, and point and track up to 20 people with a field of view (FOV) of ±60º in the azimuth (horizontal) plane.
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