As China's title of "Infrastructure Maniac" becomes widely known, more and more workers are engaged in dangerous jobs, such as high altitude, underground, tunnels, and engineering vehicles. In order to ensure the safety of these construction workers and ensure timely rescue in the event of an accident, I designed this safety black box for engineering personnel. This equipment can collect the heart rate of construction workers, the temperature and humidity of the surrounding environment, identify the state of movement, and determine whether a fall or collision accident has occurred. It is transmitted to the remote monitoring center through the network. Once the monitoring personnel find an abnormality, they can immediately organize rescue.
This TI design combines TI's wireless microcontroller (CC3200) with third-party vendor DLP Design's TRF7970 NFC BoosterPack to simulate a near field communication (NFC) card reader that scans from an NFC card to of data is transmitted securely and in real time over Wi-Fi networks to any remote location or database. Disclaimer: DLP Design, Inc. is not affiliated in any way with DLP® products from Texas Instruments Incorporated.
This reference design circuit introduces a high-precision bidirectional current power supply solution used in battery test systems (BTS). The maximum current capacity is 6A, and the full-scale accuracy is less than 0.05%. Controlled by logic pins, this circuit can be used to charge or discharge the battery. During the charging process, the battery voltage can also be controlled through analog signals. Design of this circuit is simple and easy due to the fully integrated buck and boost converters. The performance of the solution can be verified via a built-in evaluation board.
The PMP40069 reference design is for portable DLP Pico projectors. It also comes with a 3-cell battery charger. The battery powers the projector when the adapter is unavailable. This solution implements the DLPA3000 PMIC/LED driver, DLPC3438 display controller and SMBus battery buck/boost charge controller BQ25700A. DLPA3000 PMIC is a fully integrated dedicated PMIC/LED driver that meets various system analog power requirements and can drive 0 ~ 6A RGB LEDs. The buck/boost charger is compatible with 5/9/12/15/20V output adapters. The charger is highly efficient and can provide 3A charging current for 3 batteries.
This design is a 20A maximum power point tracking (MPPT) solar charge controller designed for solar panel input corresponding to 12V and 24V panels. This design is intended for small to medium power solar charger solutions, capable of operating from 12V/24V panels and 12V/24V batteries with output currents up to 20A. This design focuses on scalability and can easily be adapted to a 48V system by changing the MOSFETs to 100V rated parts. The user can also increase the current to 40A by using a TO-220 package version of the current MOSFET. This solar MPPT charge controller is designed with real-world considerations in mind, including reverse battery protection and software-programmable alarms and indications that are provided in the hardware but not configured. This design operates at greater than 97% efficiency at full load in a 24V system. For a 12V system, the efficiency is greater than 96%, which includes losses in the reverse-battery protection MOSFET.
TIDA-00261-BOOST-DRV8711 is an 8-52V, 4.5A bipolar stepper driver stage based on the DRV8711 stepper motor pre-driver and CSD88537ND dual N-channel NexFET™ power MOSFETs. This module contains everything needed to drive many different types of bipolar stepper motors and can also be converted into a dual brushed DC motor driver. The BOOST-DRV8711 is ideal for those who want to learn more about stepper motor control technology and driver stage design. This kit is designed to be compatible with all TI LaunchPads based on the LaunchPad Pinout standard, while providing primary software/firmware support for the MSP-EXP430G2 LaunchPad with MSP430G2553.
The bq25892 is a highly integrated switch-mode battery charge management and system power path management device for single-cell Li-ion and Li-polymer batteries used in a variety of smartphones and other portable devices with USB or high-voltage adapters. Its low-impedance power path optimizes switch-mode operating efficiency, reducing battery charge time and extending battery life during the discharge phase. An I2C serial interface for charging and system setup makes this device a truly flexible solution.
This reference design includes an analog Hall sensor and op amp circuit that can be used for position or angle sensing, with the advantages of no contact and wear, high stability, and a wide sensing range. This design analyzes two configurations of magnets and Hall sensors. This design provides adjustable offset and system gain along with op amp circuitry to achieve the desired output offset and range.
TI reference design TIDA-00666 supports Bluetooth Low Energy (BLE) communications and is powered by a two-wire loop capable of 4-20mA. For industrial process control instrumentation, 4mA to 20mA analog current loops are typically used to transmit analog signals. 20mA and 4mA represent the upper and lower limits of the signal range respectively. The TIDA-00666 reference design measures humidity and temperature and broadcasts the measured values via Bluetooth Low Energy technology. The TIDA-00666 design uses loop power supply, and the current value in the loop changes with the humidity value (0% is 4mA, 100% is 20mA).
TIDA-00714 TI Design is a complete TPS65982-based reference design for USB Type-C and power delivery applications. Allows users to develop various power profiles and alternate modes (such as DisplayPort) and debug existing USB Type-C and power delivery systems.
Magnetic tampering can disable any transformer in an energy metering system, which may result in the system not being properly powered or the energy being consumed by the load being recorded incorrectly. This design enables a Class 0.2 three-phase energy metering system that uses Hall sensors to detect magnetic tampering. Magnetic tamper detection is enabled when operating from primary and backup power. Various methods are employed to reduce the current consumption of Hall sensors in order to extend battery life when operating from backup power.
The TIDA-00912 TI reference design provides a complete isolated current measurement reference solution using an external shunt, reinforced isolation amplifier, and isolated power supply. Parallel voltage is limited to 25mV. This reduces power dissipation in parallel connection, enabling high current measurement ranges up to 200A. The shunt voltage is amplified by an instrumentation amplifier configuration with a gain of 10 to match the isolation amplifier input range for better signal-to-noise ratio. The output of the isolation amplifier is level shifted and adjusted to match the full input range of the 3.3V ADC. This design uses a free-running transformer driver operating at 410kHz to generate an isolated supply voltage in a small form factor to power the high-voltage side of the circuit.
TIDA-01234 is a 24W high efficiency (94%) low-cost asynchronous boost reference design for automotive LED applications based on LM3481-Q1.
This reference design is suitable for automotive high-intensity lighting systems such as headlights and taillights, as well as interior LED lighting systems. It is designed to operate over an input voltage range of 6V to 18V and is capable of driving multiple strings of 6 to 7 LEDs in series (16V to 24V) at a constant current of 1A. This reference design supports analog LED brightness control and output open circuit protection. In a boost-to-battery configuration, the input voltage can be above, below, or equal to the desired LED string voltage.
The TIDA-01428 reference design sequentially implements a 1A, wide input voltage 3.3V buck converter, followed by a compact low input voltage 5V fixed boost converter to power the Controller Area Network (CAN) physical layer interface. This design has been tested for CISPR 25 radiated emissions and conducted emissions using voltage methods, and for immunity to Bulk Current Injection (BCI) per ISO 11452-4 by operating CAN communications at 500KBPS. TIDA-01428 is an EMC-vetted power tree and CAN reference design that can be used in many automotive applications. A system basis chip (SBC) is an integrated circuit (IC) that combines several typical building blocks of a system, including transceivers, linear regulators, and switching regulators. While these integrated devices can provide size and cost savings in many applications, integrated devices do not work well in every situation. For applications where SBC is less suitable, a better approach is to build discrete implementations of the above building blocks to create a discrete SBC.
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.
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).
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.
This Near Field Communication (NFC) reference design provides a firmware example for implementing an NFC reader/writer application using the TRF7970A NFC transceiver. This reference design provides a number of easy-to-use application programming interfaces (APIs) that allow users to quickly implement NFC reader/writer functionality. The accompanying documentation, hardware, and sample C code allow designers to develop NFC reader/writer applications using the ultra-low-power MSP430/MSP432 MCUs or easily port to other carefully selected MCUs.
Liquid Tolerant Capacitive Touch Keyboard Design (TIDM-1021) is a reference design for implementing a liquid tolerant capacitive touch human machine interface (HMI). It integrates TI's MSP430FR2633 microcontroller (MCU) with high-performance CapTIvate™ touch technology and optimized sensor layout design and software. This reference design demonstrates how to design capacitive touch hardware and software that can operate reliably under the influence of liquids and pass challenging conducted noise immunity testing.
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