U-120 A Simplified Approach to DC Motor Modeling for Dynamic Stability Analysis
Texas InstrumentsWhen we say that an electric motor is a device that transforms electric power into mechanical power we say two things. First that the motor is ?and behaves as ?a transformer. Second that it stands at the dividing line between electrical and mechanical phenomena. In the case of permanent magnet motors this power transformation works in both directions so that the electrical impedance depends on
Wideband Complementary Current Output DAC Single-Ended Interface
Texas InstrumentsHigh-speed digital-to-analog converters (DACs) most often use a transformer-coupled output stage. In applications where this configuration is not practical, a single op amp differential to single-end
TCS2301 WinCE Generic Drivers
Texas InstrumentsThis application report presents the basic concept and methodology to develop the TSC2301 touch screen keypad audio and GPIO drivers on the Windows CE (WinCE) operating system (OS). The drivers are not tied to any specific processor platform. They therefore can be called generic and are reusable for any host processor or platform with minimal additional coding.
Getting Started with the bq76PL455A-Q1 Example Code
Texas Instruments This application report explains the implementation of a multi-cell lithium-ion the foundation of a battery management system using an TMS570™ microcontroller and the bq76PL455A-Q1.The bq76PL455A-Q1 can be stacked vertically to monitor up to 192 cells without additional isolation components between ICs. A high-speed universal asynchronous receiver/transmitter (UART) bus operates between the b
OMAP-L137 TMS320C6747/6745/6743 Pin Multiplexing Utility (Rev. A)
Texas InstrumentsThe OMAP-L137 C6747/6745/6743 devices use a great deal of internal pin multiplexing to allow the most functionality in the smallest and lowest cost package. This software allows the pin multiplexing registers of the device to be calculated with ease as well as showing what peripherals can be used together and what devices support the peripherals that are selected. This software is useful to anyo
Frequency-Modulated PLL Impact on Controller Area Network (CAN) Communication
Texas InstrumentsAsynchronous communication protocols rely on each node operating at the same frequency. Modulating the microcontroller operating frequency is possible when the modulation frequency is large enough. Unfortunately the EMC-reducing aspects of clock modulation are most effective when the modulation frequency is small. This application note defines the minimum modulation frequency in relation to the C
Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (Rev. A)
Texas InstrumentsThe LM3404/04HV is a buck-regulator designed for driving high powered LEDs at forward currents of upto 1.0A. LED drivers often experience thermal conditions that are extreme even by the standards ofswitching converters. For example LED drivers are often placed on the same metal-core PCB (MCPCB)as the LEDs themselves. At 1.0A a single-die white LED can dissipate more than 3W. The temperatur
Trapezoidal Control of BLDC Motors Using Hall Effect Sensors (DRV8312-EVM)
Texas InstrumentsTrapezoidal Control of BLDC Motors Using Hall Effect Sensors (DRV8312-EVM)
Generating a PWM Signal Modulated by an Analog Input
Texas InstrumentsThis EVM application converts an input value with the analog-to-digital converter (ADC) module of the Texas Instruments (TI)(tm) TMS320F240 Evaluation Module (EVM) and outputs a pulse width modulated (PWM) signal corresponding to the digital conversion of the analog input.
AN-184 References for A/D Converters (Rev. B)
Texas InstrumentsThis application note provides an indepth discussion of design references for A/D converters.
Stellaris® Graphics Library Display Drivers (AN01287) (Rev. A)
Texas InstrumentsLM3S families, LM4F families Stellaris® Graphics Library Display Drivers an01287.pdf
Online Stack Overflow Detection on the TMS320C28x DSP
Texas InstrumentsA stack overflow in an embedded DSP application generally produces a catastrophic software crash due to data corruption lost return addresses or both. Traditional off-line approaches to sizing a stack during development such as filling with a know value or estimating based on code content are not 100% reliable. Therefore programmers often feel compelled to reserve larger stack sizes than are
Understanding and Enhancing Sensitivity in Receivers for Wireless Applications
Texas InstrumentsThis technical brief provides an overview of communication receiver sensitivity. One of the most important parameters in determining the overall performance of a communication system, receiver sensiti
