App note from STMicroelectronics about current sensing using Rogowski coil together with STPMxx metering device. Link here (PDF) This application note describes the benefits of a current sensing system for metering applications using STPMxx metering devices and a current sensor developed by Pulse Engineering Inc. (hereafter referred to as “Pulse current sensor”), based on the […]
Tag Archives: STMicroelectronics
App note: Watt-hour meter based on the STM32F101 microcontroller
ARM Microcontroller based watt-hour meter implementation from STMicroelectronics. Link here (PDF) This document describes, in detail, the hardware and software implementation of a watthour meter using the STM32F101 microcontroller. This cost effective watt-hour meter uses shunt with an operational amplifier as a current sensor, an embedded 12-bit ADC for current and voltage measurement, GPIO for […]
App note: Thermal design calculations for integrated stepper motor driver solutions
Another technical note from STMicroelectronics on fine tuning motor drivers for optimal thermal design. Link here (PDF) One constant trend in the automotive world is the tendency to reduce the size of electronic components and the ECUs (Electronic Control Unit). While this development has many benefits for the car manufacturer as well as for the […]
App note: Pop & click in audio amplifiers
Technical note from STMicroelectronics about popping noise usually heard on audio amplifiers and how to minimize it. Link here (PDF) Pop and click, or rather, the absence of it, is a characteristic that makes a lot of impact in the world of audio amplifiers. This is especially true for those destined for headphone-equipped applications (such […]
App note: Adjustable gain with a current sensing
Application note from STMicroelectronics for fine tuning gain on current sensing amplifier. Link here (PDF) This application note explains how to use current sensing amplifiers with series resistors on the sense inputs. This approach is especially useful for applications where the gain must be adjusted.
App note: Intelligent power switches for 48 V battery applications
Application note on controling Intelligent Power Switches (IPS) from STMicroelectronics. Link here (PDF) For the last 15-20 years, the automotive electronics market has been moving from electromechanical relays to solid state components for driving all kind of loads. It is obvious why: solid state components are smaller in size, lighter, silent, easy to mass produce […]
App note: How to select the Triac, ACS, or ACST that fits your application
Choosing the right AC switch for your application based on specification like current rating, voltage rating and triggering quadrant. Here’s an app note from STMicroelectronics to guide you on selecting the right part. Link here (PDF) This document gives basic guidelines to select the AC switch device according to the targeted application requirements. These guidelines […]
App note: A logic-level transient-voltage protected AC switch
STMicroelectronics’ AC switch directly controlled by microcontroller. Link here (PDF) Home appliances such as washing machines, refrigerators and dishwashers employ a lot of low power loads such as valves, door lock systems, dispensers or drain pumps. Since these loads are powered by the mains in ON / OFF mode, they were initially controlled by relays. […]
App note: EMC guidelines for microcontroller-based applications
Application note(PDF) specific on microcontroller EMC from ST Microelectronics. Electromagnetic compatibility (EMC) must be taken into account at the very beginning of a project as the cost of correcting an EMC problem encountered at the start of production can be far greater that the cost of a detailed EMC study during the development phase of […]
App note: EMC general information
Application note(PDF) on EMC from ST Microelectronics. Because many electronic circuits are in proximity to each other, it is essential that their design is not affected by external noise sources and that the circuit itself is not a noise source affecting other circuits. This relationship is known as electromagnetic compatibility or EMC. Sources of electromagnetic […]
App note: LED array drivers
Here are STMicroelectronics’ portfolio of LED array drivers(PDF). The use of LEDs in applications like displays, information and advertising panels, signs, traffic signals, automotive lighting and architectural lighting is becoming more and more common. LED array drivers, with accurate constant current regulation and embedded serial interfaces, offers a solution that is suitable for most of […]
App note: Using the STM6600, STM6601 smart push-button on/off controller
An app note(PDF) on smart on/off controller and voltage monitoring chip from STMicroelectronics. These devices allow easy and safe control of applications run with one or two push-buttons by securely starting or powering down a system and also resetting the processor or disabling power in case of a non-responding application (e.g. code in a dead […]
App note: Using the STC3100 battery monitor for gas gauge applications
A battery monitoring chip STC3100 from STMicroelectronics tells you voltage, current, battery temperature and additionally coulomb counter for gas gauge. App note here (PDF) The STC3100 battery monitoring function includes the measurement of the battery voltage and current, measurement of the IC’s die temperature and computation of the battery charge variation (Coulomb counter). An external […]
KEOLABS – STMicroelectronics design contest
KEOLABS has announced the STM32 Chrom-ART Application Design Contest. KEOLABS (supplier of Raisonance brand development tools) launched an application design contest in collaboration with STMicroelectronics. Contest promotes the new STM32F429 with Chrom-ART graphics accelerator. Contest is open to participants worldwide and prizes include $10 000 USD in cash awards. Applications must be submitted between 30 […]
TI announces sponsorship of Innovation World Cup challenge
TI has announced their participation as a sponsor in the Worldwie Innovation Cup competition: “For the fourth year in a row Texas Instruments have joined the Wearable Technologies Innovation World Cup where developers from all over the world are called to submit their innovative solutions for wearable devices. New ideas, products and prototypes can be […]
STM M24LR04E-R 4-Kbit dual interface EEPROM with RFID
STMicroelectronics has introduced the M24LR04E-R 4-Kbit Dual Interface EEPROM with RFID. “The M24LR04E-R device is a dual-interface, electrically erasable programmable memory (EEPROM). It features an I2C interface and can be operated from a VCC power supply. It is also a contactless memory powered by the received carrier electromagnetic wave. The M24LR04E-R is organized as 512 […]
Discovery kit for the STM32L EnergyLite 32-bit MCUs
The STM32L-DISCOVERY helps you to discover the STM32L ultralow power features and to develop and share your applications. It is based on an STM32L152RBT6 and includes an ST-Link/V2 embedded debugging tool interface, an LCD (24 segments, 4 commons), LEDs, pushbuttons, a linear touch sensor or touchkeys. You can download the product brief here. The Discovery […]
STMicroelectronics MEMS pressure sensor
STMicroelectronics has announced a new silicon pressure sensor capable of providing extremely high-resolution measurements of pressure – and therefore also of altitude – in a compact, thin package. The LPS001WP is a tiny (3×5 mm) silicon pressure sensor with an embedded 16-bit ADC, SPI and I2C interfaces and a supply voltage range of 2.2 V […]
STMicroelectronics debuts single-chip positioning device for multiple global navigation systems
STMicroelectronics announces the impending release of Teseo II, a new generation of single-chip stand-alone positioning receivers for Portable Navigation Devices, in-car navigation and telematics applications. These Systems-on-Chips are monolithic devices capable of receiving signals from multiple satellite navigation systems, including GPS, GALILEO, GLONASS and QZSS. Listed features include 3rd generation positioning receiver with 32 tracking […]