参考设计
(39)
Level Translation: Dual to Single Supply Amp, ±15V to 5V
TIPD148: Translating a ±15V signal to a single supply 5V signal for use with an ADC is a common circuit requirement. This Dual Supply to Single Supply Amplifier circuit design translates a ±15V signal to a 0V to 5V signal. The output of this design will not be outside of 0-5V regardless of power supply sequencing or other transient conditions.
TIDA-00512 340W Digital Controlled LLC Resonant Half-Bridge DC-to-DC Power Conversion Reference Design | TI.com
TIDA-00512: This design is a LLC resonant half-bridge DC-DC power converter with digital control using 3138ACC32EVM-149 daughter-card. The daughter-card control functions with preloaded firmware providing the required control functions for a LLC resonant half-bridge converter. The TIDA-00512 (3138ALLCEVM-150) accepts a DC input from 350VDC to 400VDC, and outputs a nominal 12VDC with full load output power of 340W, or full output current of 29A. As seen at APEC
TIDA-00703 Reference Design to Convert a Power Supply into Real Time Programmable CC-CV Source | TI.com
TIDA-00703: The TIDA-00703 is a Digital Feedback controller board to convert analog power supplies into a real-time configurable Constant-Voltage Constant Current (CC-CV) source with dynamically variable output for performing complex battery charging profiles or driving CC/CV loads.This Reference design replaces the traditional analog feedback with a digital feedback. The Presence of an MCU in the feedback loop gives rise to real time monitoring and configuration capability along with an ability to implement non-linear control behavior.
TIDA-00912 Shunt-Based High Current Measurement (200-A) Reference Design with Reinforced Isolation Amplifier | TI.com
TIDA-00912: The TIDA-00912 TI Design provides a complete reference solution for isolated current measurement using external shunts, reinforced isolation amplifiers, and isolated power supply. The shunt voltage is limited to 25 mV max. This reduces power dissipation in the shunt to enable a high current measurement range up to 200 A. Shunt voltage is amplified by a instrumentation amplifier configuration with a gain of 10 to match the input range of isolation amplifier for better signal to noise ratio. The output of isolation amplifier is level shifted and scaled to fit the complete input range of 3.3-V ADCs. This design uses free running transformer driver operating at 410 kHz for generating isolated supply voltage in a small form factor to power high voltage side of the circuit.
Single-Supply, Unipolar, Multiplying DAC Reference Design
TIPD157: This multiplying DAC (MDAC) reference design outputs unipolar voltages from 0 V to 2.5 V. This design does not require dual supplies to realize a unipolar, positive output voltage. This design removes the need for a negative supply rail by applying a bias voltage to the output transimpedance stage.
TIPD157 Single-Supply, Unipolar, Multiplying DAC Reference Design | TI.com
TIPD157: This multiplying DAC (MDAC) reference design outputs unipolar voltages from 0 V to 2.5 V. This design does not require dual supplies to realize a unipolar, positive output voltage. This design removes the need for a negative supply rail by applying a bias voltage to the output transimpedance stage.
AC-mains LED Lighting with DALI DMX512 & Power Line Communications Reference Design
TIDM-AC-LED-COM: Ideal for outdoor, entertainment, and industrial lighting applications, this LED Lighting design provides high power and high efficiency illumination with built-in communications networking. The lighting unit consists of a 250W universal AC-input LED driver power supply and a demonstrational six-string LED lamp. Driving the LED’s with great power efficiency and electrical utilization, the LED driver power supply operates at greater than 90% power efficiency with 0.99 power factor (PF). Furthermore, to support system-networked lighting and remote connectivity, this power supply includes support for common lighting communications standards including Digital Addressable Lighting Interface (DALI), DMX512, and Power Line Communications (PLC).
PMP6692 LED driver 3.2V@0.5A | TI.com
PMP6692: This synchronous LED driver regulates the current to 0.5A in a single LED. The circuit is optimized to operate at 12V input and delivers an efficiency of 90%. Targeted application is landscape lighting and solar.
TIPD211 20-bit, 1-MSPS, 4-Ch Small Form Factor Design for Test and Measurement Applications Reference Design | TI.com
TIPD211: End equipment such as mixed signal SOC testers, memory testers, battery testers, liquid-crystal display (LCD) testers, benchtop equipment, high-density digital cards, high-density power cards, x-Ray, MRI, and so forth require multiple, fast, simultaneous sampling channels with excellent DC and AC performance but at low power and in small board spaces. The proposed solution in this design uses high-performance SAR ADCs (ADS8910B), precision amplifiers (OPA2625), and a precision voltage reference (REF5050).
340W Digital Controlled LLC Resonant Half-Bridge DC-to-DC Power Conversion Reference Design
TIDA-00512: This design is a LLC resonant half-bridge DC-DC power converter with digital control using 3138ACC32EVM-149 daughter-card. The daughter-card control functions with preloaded firmware providing the required control functions for a LLC resonant half-bridge converter. The TIDA-00512 (3138ALLCEVM-150) accepts a DC input from 350VDC to 400VDC, and outputs a nominal 12VDC with full load output power of 340W, or full output current of 29A. As seen at APEC
TIDA-01351 High-Resolution, High-SNR True Raw Data Conversion Reference Design for Ultrasound CW Doppler | TI.com
TIDA-01351: The TIDA-01351 is a continuous wave (CW) signal conditioning subsystem for ultrasound imaging systems (64-, 128-, 192-, 256-channel ultrasound system). This design features 20-bit fully differential simultaneous sampling with true raw data available for processing. This TI Design consists of a fullydifferential signal path for I and Q channels, each using high-performance SAR analog-to-digital converters (ADCs) (ADS8900B), fully-differential precision amplifiers (THS4551), a dual low-noise, lowdropout (LDO) voltage regulator (TPS7A8801), and a precision voltage reference (REF5050). The TIDA-01351 can be interfaced with the PH1-EVM controller through the multiSPI™ digital interface, and the performance can be evaluated using a PC-based application (GUI) from any PC through the USB interface.
LED driver 3.2V@0.5A
PMP6692: This synchronous LED driver regulates the current to 0.5A in a single LED. The circuit is optimized to operate at 12V input and delivers an efficiency of 90%. Targeted application is landscape lighting and solar.
TIPD148 Level Translation: Dual to Single Supply Amp, ±15V to 5V | TI.com
TIPD148: Translating a ±15V signal to a single supply 5V signal for use with an ADC is a common circuit requirement. This Dual Supply to Single Supply Amplifier circuit design translates a ±15V signal to a 0V to 5V signal. The output of this design will not be outside of 0-5V regardless of power supply sequencing or other transient conditions.
TIPD131 Single-Ended Input to Differential Output Conversion Circuit Reference Design | TI.com
TIPD131: This TI Precision Verified Design provides the theory, component selection, simulation, PCB design, and measurement details for a single ended input to differential output circuit which converts a single ended input of +0.1V to +2.4V into a differential output of ± 2.3V on a single +2.7V supply. The output range is intentionally limited to maximize linearity. The circuit is composed of 2 amplifiers. One amplifier acts as a buffer and creates a voltage, Vout+. The second amplifier inverts the input and adds a reference voltage to generate Vout-. Both Vout+ and Vout- range from 0.1V to 2.4V. The difference, Vdiff, is the difference between Vout+ and Vout-. This makes the differential output voltage range +2.3V.
TIDA-01096 High Efficiency Tunable White LED DC-DC Driver with Bluetooth Smart Connectivity Reference Design | TI.com
TIDA-01096: The TIDA-01096 TI design is a tested DC-DC LED driver sub system for tunable white LED luminaires. It is built-on a wireless SoC platform which can enable intensity adjustment (dimming) and co-related color temperature (CCT) control using any BLE smart device. Tunable white light luminaires simulate daylight conditions. With a separate warm-white and cold-white LED string, it allows CCT tuning and thereby helps achieving proper circadian stimulation. TI design TIDA-01096 provides high efficiency DC-DC conversion and allows dimming and color temperature control over more than 1:50 and 1:500 range using analog and PWM methods.
TIDA-01037 20-bit, 1-MSPS Isolator Optimized Data Acquisition Reference Design Maximizing SNR and Sample Rate | TI.com
TIDA-01037: TIDA-01037 is a 20-bit, 1 MSPS isolated analog input data acquisition reference design that utilizes two different isolator devices to maximize signal chain SNR and sample rate performance. For signals requiring low jitter, such as ADC sampling clocks, TI’s ISO73xx family of low jitter devices are used whereas TI’s high speed ISO78xx family of devices are used to maximize data sample rate. By combing these two isolator solutions, high frequency performance is significantly improved by minimizing sample clock jitter across the isolation boundary, and data throughput is improved by maximizing isolator signaling rate. Additional improvements are realized by utilizing TI’s advanced ADC multiSPITM and source-synchronous features. Finally, all key design theories are described and measured results presented.
TIPD140 Single Op-Amp Slew Rate Limiter Reference Design | TI.com
TIPD140: This TI Reference Design demonstrates a single op amp used as a slew rate limiter. In control systems for valves or motors, abrupt changes in voltages or currents can cause mechanical damages. By controlling the slew rate of the command voltages, into the drive circuits, the load voltages can ramp up and down at a safe rate.
Single-Ended Input to Differential Output Conversion Circuit Reference Design
TIPD131: This TI Precision Verified Design provides the theory, component selection, simulation, PCB design, and measurement details for a single ended input to differential output circuit which converts a single ended input of +0.1V to +2.4V into a differential output of ± 2.3V on a single +2.7V supply. The output range is intentionally limited to maximize linearity. The circuit is composed of 2 amplifiers. One amplifier acts as a buffer and creates a voltage, Vout+. The second amplifier inverts the input and adds a reference voltage to generate Vout-. Both Vout+ and Vout- range from 0.1V to 2.4V. The difference, Vdiff, is the difference between Vout+ and Vout-. This makes the differential output voltage range +2.3V.
TIDA-01095 100W Dimmable DC-DC LED Driver with Daylight Harvesting and Wireless Connectivity Reference Design | TI.com
TIDA-01095: The TIDA-01095 TI design is a tested DC-DC LED driver subsystem for high power, high efficiency dimmable LED luminaires. It is built-on a wireless SoC platform which can enable intensity adjustment through analog, PWM dimming and control using any BLE smart device or ZiBee. High Bay and Low bay LED lighting luminaires are replacing the fluorescent and HID lights as they cut energy consumption in half and nearly eliminate maintenance costs. Daylight harvesting using the dimming feature combined with ambient light sensor, can provide up-to additional 50% energy savings depending on the application. TI design TIDA-01095 provides high efficiency DC-DC conversion, allows dimming, daylight harvesting and enables wireless connected lighting control.
350W Constant Voltage - Constant Current (CVCC) Phase-Shifted Full Bridge reference design
PMP9622: This reference design uses the UCC3895 Phase-Shifted Full Bridge controller to implement a high efficiency, 120VAC input to 44Vdc up to 8A output. The power supply is set up to be constant voltage-constant current. The voltage and current are set by fixed resistor values and could be set by micro-processor in the actual product. The design is biased by a low-cost BJT Flyback using the UCC28720 PWM controller.
AC Coupled, Single-Supply, Inverting and Non-inverting Amplifier Reference Design
TIPD185: This design amplifies an ac signal, and shifts the output signal so that it is centered at one half the power supply voltage. Note that the input signal has zero dc offset so it swings above and below ground. The key benefit of this circuit is that it accepts signals which swing below ground even though the amplifier does not have a negative power supply.
TIDM-AC-LED-COM AC-mains LED Lighting with DALI DMX512 & Power Line Communications Reference Design | TI.com
TIDM-AC-LED-COM: Ideal for outdoor, entertainment, and industrial lighting applications, this LED Lighting design provides high power and high efficiency illumination with built-in communications networking. The lighting unit consists of a 250W universal AC-input LED driver power supply and a demonstrational six-string LED lamp. Driving the LED’s with great power efficiency and electrical utilization, the LED driver power supply operates at greater than 90% power efficiency with 0.99 power factor (PF). Furthermore, to support system-networked lighting and remote connectivity, this power supply includes support for common lighting communications standards including Digital Addressable Lighting Interface (DALI), DMX512, and Power Line Communications (PLC).
TIDA-03026 Status Indication Reference Design With LED and Audio Feedback | TI.com
TIDA-03026: The TIDA-03026 reference design functionality emulates status indication subsystems in various end equipments. By putting multiple LED drivers in parallel, an array of RGB LEDs can be synchronized to blink, pulse, and breathe - enhancing customer experience. Audio feedback is also integrated to show a combined status indication solution with LEDs and audio. Applications include IP phones, building automation, home automation, white goods, and automotive infotainment and cluster.
TIDA-00662 High Performance Capacitive Sensor Front-End Reference Design | TI.com
TIDA-00662: The TIDA-00662 is a high performance capacitive sensor front-end reference design. With the usage of an audio codec including a programmable miniDSP functionality impedance measurement and change in phase detection is realized. The frequency-domain sensing front-end is for pressure and flow transmitters applications, as well as any other application with capacitive sensor elements. Click here for more information on NewTec
PMP20289 400V – 12V/500W High Frequency Resonant Converter Reference Design Using High Voltage GaN Devices | TI.com
PMP20289: The PMP20289 was built and tested to verify the performance of a high frequency (>400kHz nominal switching frequency) LLC series resonant converter (LLC-SRC) implemented with Texas Instrument’s high voltage GaN FETs under nominal (390V to 12V) voltage conversion. The digital controller UCD3138A is used along with the UCD7138 SR controller to optimize LLC-SRC efficiency. TI’s high voltage direct drive GaNFET LMG3410 is used to enable fast switching and be able to minimize dead-time between half-bridge switches. The test results show that 96.8% peak efficiency is achieved at 24A load and 96.3% efficiency is achieved at 42A full load with a switching frequency over 350kHz in a 390V to 12V conversion.
Single Op-Amp Slew Rate Limiter Reference Design
TIPD140: This TI Reference Design demonstrates a single op amp used as a slew rate limiter. In control systems for valves or motors, abrupt changes in voltages or currents can cause mechanical damages. By controlling the slew rate of the command voltages, into the drive circuits, the load voltages can ramp up and down at a safe rate.
TIDA-00445 Shunt-Based 200A Peak Current Measurement Reference Design Using Isolation Amplifier | TI.com
TIDA-00445: The TIDA-00445 TI design provides a reference solution for isolated current measurement using shunt and isolated amplifier. By limiting the shunt voltage to 25mV, this design is able to reduce power dissipation in the shunt and achieves a high current measurement range of up to 200A. Shunt voltage is further amplified by precision Opamps in instrumentation amplifier based configuration with a gain of 10 to match the input range of isolation amplifier. The output of isolation amplifier is level shifted and scaled to utilize the complete input range of 3.3v ADC. This design uses free running transformer driver for generating isolated supply voltage for the high voltage side of the circuit. Small form factor for the power supply is achieved by the operation of driver at 400 KHz.
