This design idea provides a simple non-isolated AC/DC power supply for low power applications such assmart grid E-meter applications. The design uses a capacitive-dropper front-end combined with aLM46000 SIMPLE SWITCHER® buck regulator from Texas Instruments. The circuit provides 3.3 V at aminimum of 50 mA from a line supply of 90 VAC to 265 VAC. Theory of operation as well as designequa

The reference design and application examples shown in this document help implement a positive-charge pump doubler show how to drive an isolation FET and show how to perform voltage conversion with the TPS65160.The TPS65160 offers a compact power supply solution to provide all four voltages required by a thin-film transitor (TFT) LCD panel. With its high-current capabilities the device is i

WEBENCH? Power Architect Project Report

TUSB1310 TUSB1310 Implementation Guide

This application report describes how to interface the DAC7811 low-glitch, 12-bit resolution, and current output multiplying digital-to-analog converter (MDAC) to the MSP430F449 mixed signal microcont

This report discusses companding routines. Companding is required for applications that use codec devices such as in public and private telephone networks. With the speed and versatility of the TMS320 companding can be performed in either software or hardware. The report describes both the A-law and mu-law software companding methods. Programs are also provided to show how the software compa

This application report illustrates how to generate various forms of triangle and trapezoid waves using the versatile programmable high-end timer (N2HET). The examples can be run in either the Hercules hardware development kit (HDK) or the Launchpad™ development kit. The application report shows the N2HET program examples the steps to setting up the N2HET registers as well as basic system s

AN-237 Convolution: Digital Signal Processing

The stereovision process determines the distances of objects by acquiring two images in different positions and studying the difference in locations of the corresponding stereo points. Various techniques have been developed to infer 3-D information from a set of brightness images. One technique called passive stereovision is appealing because of its ranging applications and especially because of

Integration Simplifies TFT Power Designs

This application report is an overview on how power supply noise affects some key specifications of the CDC3S04 sine wave buffer. The ripple in the power supply induces additional harmonics in the frequency spectrum and spurs in the phase noise plot thus degrading the overall jitter and EMI performance. Decoupling capacitors significantly minimize these effects. This document provides guidelines

TUSB9261 TUSB9261 Implementation Guide HPA/ICP/CCI-Consumer_Computer_IF/2-App_Reports

The MSP430x09x is the first native 0.9-V device in the portfolio of the MSP430 family. It is designed to be supplied from a single coin cell with a voltage range between 1.65 V and 0.9 V. While the MS

The TPS233x hot-swap controller has several pins tied to the power bus in a typical application. This exposes the TPS233x to potentially damaging transients whenever the TPS233x disconnects the load f

The TPS2300/01/10/11/20/21/30/31 hotswap controllers allow safe board insertion and removal from a live backplane. With the current-limit-setting resistor (RSET), the current limit can be set much mor

This application note discusses the Virtex-5 FPGA power supply prerequisites in terms of the multiplevoltage rail and current level requirements output sequencing and startup characteristics.

This document supplies information for using the Expansion Bus Module (EBM) on the TMS470R1B1M to interface to external memory and peripherals. The module supports the multiplexing of the input/output (I/O) functions and the expansion bus interface. When the I/O functions are not used the EBM can be used to interface 8- or 16-bit memories.

Low-Voltage Differential Signaling Yields Megatransfers per Second with Milliwatts of Power

RS-485 is a widely used standard for industrial communication due to its simplicity and suitability for use in high-noise environments on long cables. Inherent in the standard are balanced signal drivers and receivers which use differential signaling to reject common-mode noise. Receiver hysteresis is commonly used to ensure glitch-free reception even when differential noise is present. This appl