参考设计
(23)
Altera Arria V GZ FPGA Discrete Power Solution Reference Design
PMP9357: The PMP9357 reference design is a complete power solution for Altera's Arria V series FPGAs. This design uses several TPS54620 synchronous step down converters, LDOs, and a DDR termination regulator to provide all the necessary rails to power the FPGA. To provide correct power sequencing, a UCD90120A power supply sequencer/monitor is used and can be controlled through I2C.
LM3447 - 230VAC, 10W, Phase Dimmable Non-isolated Buck-Boost PFC LED Driver
PMP8025: The main purpose of this reference design is to demonstrate a high performance offline phase dimmable Buck-Boost PFC LED driver based on LM3447. This LED driver is designed for converting an AC input to a regulated LED current. The operating conditions and performance of the reference design are as follows:
Altera Arria V GX FPGA Power Solution Reference Design
PMP9449: The PMP9449 reference design provides all the power supply rails necessary to power Altera's Arria® V GX family of FPGAs. It utilizes a TPS38600 to monitor the input supply and provide power on sequencing. This design features low cost, small footprint discrete ICs and is powered from a single 5V input.
Wide Input Voltage Range Automotive Cuk LED Driver Reference Design (35V @ 0.75A)
PMP6012: PMP6012 reference design presents the TPS92690Q1 DC-DC controller driving a 18V to 35V string of LEDs at 750mA of current in a Cuk configuration. The Cuk topology features continuous input and output currents which helps reduce EMI and also allows one end of the LED string to connect to common ground allowing for a single wire system.
8 Channel 1A/Ch High Side Driver for Programmable Logic Controller (PLC) Reference Design
TIDA-00183: The TIDA-00183 shows a high density, high power digital output circuitry with full protection and isolation for programmable logic controllers in factory automation and control environment. The BeagleBone-Black cape formfactor allows easy evaluation of the used driver chips and the interoperation with an MSP430 MCU for innovative protection schemes.
Bridgeless Power Factor Correction Converter
TIDM-BLPFC: This design is a digitally controlled, bridgeless, 300W, power factor correction (PFC) converter. The distinguishing characteristic of a bridgeless PFC converter is that it eliminates the need for a diode bridge at the input. This reduces power losses that normally occur in a diode bridge and, as a result, improves overall system efficiency. For this design, a C2000™ Piccolo™ TMS320F28035 microcontroller (MCU) is the digital controller for the PFC converter, controlling the two boost power stages that comprise the bridgeless PFC converter. By operating the stages alternatively during the positive and negative half cycles of the AC mains voltage, the Piccolo MCU implements both the AC-to-DC rectification as well as power factor control. This design achieves full load efficiency greater than 93% and power factor of greater than 0.98 at 50% or greater load.
Interface to a Sin/Cos Encoder with Sitara AM437x Reference Design
TIDA-00178: The TIDA-00178 reference design is an EMC compliant industrial interface to Sin/Cos position encoders. Applications include industrial drives, which require accurate speed and position control. The design utilizes a 16-bit dual sample ADC with drop-in compatible 14- or 12-bit versions available, allowing for optimization of performance and cost. TIDA-00178 provides a direct connection to Sitara AM437x using SPI and QEP. For quick evaluation it features a 60-pin connector which directly fits the AM437x IDK. An example firmware for Sitara AM437x IDK is provided, which outputs the measured angle from the Sin/Cos encoder with up to 28-bit resolution through the Sitara’s USB virtual COM port.
Efficient, LDO-free Power Supply for a 12-bit 500-MSPS ADC Reference Design - PMP9767.2 - TI Tool Folder
PMP9767: The electrical performance of data converters depends on the cleanliness of their supply voltages. Linear regulators (LDOs) are commonly used but have low efficiency and high power loss, which is unsuitable for portable applications. Using a switch mode power supply (SMPS) instead, such as the TPS62231 and TPS62237, is a cost-effective and efficient power supply solution. Such a solution does not degrade the performance of the 12-bit ADS540x family of analog to digital converters (ADCs) and does not waste excessive power. The test report shows the Signal to Noise Ratio (SNR) and Spurious-Free Dynamic Range (SFDR) comparisons between the two power supplies, which demonstrate the same performance.
4.5V to 24V Wide Input, Negative 5V/2A Output Non-synchronous Converter Reference Design
PMP10680: The PMP10680 reference design is a non-sync buck converter with buck-boost configuration. The PMP10680 accepts an input voltage of 4.5 to 24Vin and provides a negative 5V output capable of supplying continuous 2A of current to the load. With negative output and the self-positive input, this reference design could be used for bipolar amplifer/ADC/DAC supply. Internal compensation facilitates ease of use.
3D Printer Controller (12V)
TIDA-00405: This design is a complete system for controlling 3-axis, single extruder-based 3D printers. The system is managed by the MSP430F5529 LaunchPad and utilizes the DRV8846 for precision stepper motor control. The CSD18534Q5A is used as a low-side switch for the hot bed heater, extruder heater, and cooling fan. The DRV5033 Hall Sensor acts as a contactless limit switch.
Single Phase 60W Audio Amplifier Reference Design
PMP9372: PMP9372 is a single-phase synchronous boost converter, which utilizes the LM5121 controller. Inrush limiting is set to 11A nominal, which allows startup into a 4700μF output capacitor. The TPS3700DDC is used as an output voltage monitor, which provides Power Good signaling of output over-voltage and under-voltage.
Synchronizing Multiple JESD204B ADCs for Emitter Position Location Reference Design
TIDA-00467: A common technique to estimate the position of emitters uses the amplitude and phase shift data of a signal derived from an array of spatially distributed sensors. For such systems, it is important to guarantee a deterministic phase relationship between the sensors to minimize errors in the actual measured data. This application design will discuss how multiple Analog to Digital Converters (ADCs) with a JESD204B interface can be synchronized so that the sampled data from the ADCs are phase aligned.
High-Efficiency Low Vin 30W Boost Converter for Automotive Applications (E-Call) Reference Design
PMP9382: PMP9382 is a low Vin boost converter utilizing the automotive grade LM3478Q-Q1 controller. This design starts at a diode drop above the minimum input voltage of 2.97V (~3.4V) to a maximum of 6V in. Once the power supply is enabled and output is present, this design will work down to 2V input minimum, supplying an output voltage of 10V at 3A. The Switching frequency is set to 400 kHz.
Two-Wire Interface to a HIPERFACE DSL Encoder Reference Design
TIDA-00177: The TIDA-00177 reference design is an EMC compliant industrial interface to a two-wire HIPERFACE DSL encoder. Applications include industrial servo drives. The design features a 3.3-V supply RS485 transceiver and line termination and coupling for encoder power over RS485 as per HIPERFACE DSL specification. The design has been tested up to 100m cable length with an integrated cable, where the encoder’s two-wire twisted pair was integrated in the same motor cable. The encoder connector output is protected against over-voltage and short circuit to prevent damage to an encoder or during a cable short. The design features an industrial compliant 24-V input with wide range from 18-36V. A 3.3V I/O connector with logic signals for easy interface to a host processor with HIPERFACE DSL Master IP Core is made available.
