CN0260

Oversampled SAR ADC using PGA achieves over 125 dB dynamic range

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CN0217

High-precision impedance measurement with 12-bit impedance converter

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Flexible fault protection

A flexible circuit is shown that limits current or removes power in response to a command from the user or other fault-indicating signal. It accommodates manual-reset (MR), over-temperature, and protection in hot-swap applications. Residing on either the backplane/host side or the removable-card/remote-device side of the backplane connectors, it guards against start-up faults when a card or board is inserted into a rack or host with the main power supply turned on.

Two-phase interleaved LLC resonant converter reference design using C2000 MCU

Resonant converters are commonly used DC/DC converters commonly used in servers, telecommunications, automotive, industrial and other power applications. These converters have high performance (efficiency, power density, etc.) and are constantly increasing various industry standard requirements and power density targets, making them ideal for mid- to high-level power applications.

This reference design implements a 500W digitally controlled two-phase interleaved LLC resonant converter. The system is controlled by a single C2000™ microcontroller (MCU), the TMS320F280025C, which also generates PWM waveforms suitable for all power electronic switching devices in all operating modes. The design accurately achieves phase-to-phase current sharing by utilizing innovative current sharing technology.

NOTE: An older version of this design using F2837x devices is available in ControlSUITE .

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Extending high-side current detector operating voltage to 1kV using optocouplers

This application note describes the use of a current-sense amplifier along with an optocoupler to extend the operating voltage range up to 1,000 volts for high-voltage applications. The circuit relies on the optocoupler's isolation barrier to separate the high-side and grounded side of the 1,000V system. Op amps are used to eliminate photodiode non-linearity and drift and provide an accurate output voltage proportional to the load on the 1kV supply.

2020 E-Contest Question E-Amplifier Nonlinear Distortion Research Device (Dalian University of Technology)

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MAXREFDES38#: ECT/EPT current fault sensor

The MAXREFDES38# subsystem reference design is a 3-channel, high-accuracy, low-power analog front-end solution for EPT/ECT and smart-grid current fault-sensing applications. Hardware, firmware, design files, and lab measurements provide complete system information for rapid prototyping and development.

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Power Multiplexer Circuit

In this reference design, a power multiplexer circuit with 2 inputs and 1 output is implemented on a small printed circuit board (PCB). Using MOSFET gate drive circuit ICs, eFuse ICs, Zener diodes, and small package MOSFETs selected from Toshiba's various product lines, an ideal diode with BBM and MBB switching is created.

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CN0237

Ultra-low power, 18-bit, differential PulSAR ADC driver

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18V/400W High Efficiency (98%) Compact Brushless DC Motor Driver Reference Design with Stall Current Limit

TIDA-00772 is an 18A RMS driver for three-phase brushless DC (BLDC) motors in power tools powered by 5-cell Li-ion batteries (up to 21V). The design is a compact 45 x 50 mm actuator that enables sensor-based trapezoidal control. The design uses a discrete compact MOSFET-based three-phase inverter that delivers 18A RMS continuous (60A peak for 1 second) winding current without the need for any external cooling devices or heat sinks. The gate driver's slew rate control and charge pump ensure maximum inverter efficiency (>98% at 18V DC) with optimal EMI performance. Cycle-by-cycle overcurrent protection prevents large stall currents in the power stage, and the board can operate in ambient temperatures up to 55°C. The small form factor allows for flexible plate placement, the high efficiency allows the battery to last longer, and the 60A peak current capacity delivers high instantaneous peak torque in power tools.

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CN0227

High performance, 16-bit, 250 MSPS wideband receiver with anti-aliasing filter

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650 V 400 A six-cell automotive qualified IGBT module

The HybridPACK™ 1 is an automotive qualified power module designed for hybrid electric vehicle (HEV) applications in the 20–30kW power range.

SimpleLink™ Sub-1GHz Sensor-to-Cloud Gateway Reference Design for TI-RTOS Systems

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?

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3-phase AC 400V input PFC converter

This reference design provides design guidance, data and other content for a 4kW 3-phase AC 400V input PFC converter using a 3-phase totem pole topology and 1200V SiC MOSFETs.

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CN0216

Precision electronic scale design using 24-bit Σ-Δ ADC AD7791 and external zero-drift amplifier ADA4528-1

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NOVATO (MAXREFDES16#): 4-20mA loop powered temperature sensor with HART function

The Novato reference design (MAXREFDES16#) is a 16-bit, high-accuracy, loop-powered temperature transducer that transmits temperature information from a remote object to the central control unit over a 4–20mA current loop and using the highway addressable remote transducer (HART) communication protocol.

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CN0337

带三线式补偿的12位、300 kSPS、单电源、完全隔离式RTD温度测量系统

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Remote monitoring system sends emails via SMS

This application note demonstrates how to make a simple system that monitors temperature and analog voltages remotely. On meeting certain alarm conditions, the system can send SMS messages, which are then converted to email and forwarded to the designated email address.

CN0336

12-bit, 300 kSPS, single supply, fully isolated data acquisition system for 4-20 mA input

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ALAMEDA (MAXREFDES24#): 4-channel analog output

The Alameda (MAXREFDES24#) subsystem reference design features four dense, highly accurate analog outputs in a compact, galvanically isolated form factor. Each channel provides current or voltage. This design uniquely fits in programmable logic controllers (PLC), distributed control systems (DCS ), and other industrial applications. Hardware, firmware design files, and lab measurements are provided for rapid prototyping and development. The board is also available for purchase.

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