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Posts Tagged ‘app note’

App note: Application of SiC MOSFETs

Sunday, December 17th, 2017

App note from ON Semiconductors about Silicon Carbide MOSFETs, their difference and gains over Silicon MOSFETs. Link here (PDF) Among the Wide Band Gap materials silicon carbide (SiC) is by far the most mature one. The raw wafer quality has greatly improved over the last years with significant reduction of...

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App note: Workflow for an IoT product

Sunday, December 17th, 2017

ON semiconductor's IoT device development process. Link here (PDF) In this application note a complete list of process steps is described in order to develop a specific system in the IoT environment. In order to make the description more practical the PIR sensor alarm example is used.

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App note: Choose the right power supply for your FPGA

Sunday, December 10th, 2017

Designing a power supply for FPGA includes multiple voltage, ripple management and power sequencing, here's an app note from Maxim Integrated. Link here (PDF) Field-programmable gate arrays (FPGAs) and complex programmable logic devices (CPLDs) require 3 to 15, or even more, voltage rails. The logic fabric is usually at the...

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App note: Current-sense amplifier doubles as a high common mode instrumentation amplifier

Sunday, December 10th, 2017

Application note from Maxim intergrated on utilizing a boost converter and a current-sense amplifier to form a regulator that derives +5V from -48V without isolation. Link here (PDF) Instrumentation amplifiers (IAs) are used where gain accuracy and dc precision are important, such as in measurement and test equipment. The downside...

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App note: Current sensing in metering applications using a pulse current sensor and ST metering devices

Sunday, December 3rd, 2017

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...

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App note: Watt-hour meter based on the STM32F101 microcontroller

Sunday, December 3rd, 2017

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...

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App note: Thermal design calculations for integrated stepper motor driver solutions

Sunday, November 26th, 2017

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...

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App note: Pop & click in audio amplifiers

Sunday, November 26th, 2017

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...

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App note: Characteristics and applications of fast recovery epitaxial diodes (FRED)

Sunday, November 19th, 2017

All about ultrafast diodes app note from IXYS. Link here (PDF) During the last 10 years, power supply topology has undergone a basic change. Power supplies of all kinds are now constructed so that heavy and bulky 50/60 Hz mains transformers are no longer necessary. These transformers represented the major...

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App note: Optimized diodes for switching applications

Sunday, November 19th, 2017

An app note from IXYS about choosing the right diode for efficiency and cost. Link here (PDF) Great efforts have been made to improve power switches – MOSFETs and IGBTs – to decrease forward voltage drop and as well as to decrease turn-off energy. In switching inductive loads, the turn-on...

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App note: Adjustable gain with a current sensing

Sunday, November 12th, 2017

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.

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App note: Intelligent power switches for 48 V battery applications

Sunday, November 12th, 2017

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,...

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App note: Position sensing technologies in automotive applications

Sunday, November 5th, 2017

An Autopad(TM) sensor from TT Electronics provides a new non contact position sensing. Link here (PDF) Automotive design engineers are continuously seeking components that offer performance and flexibility beyond those of conventional position sensing technologies. Further still are the requirements that these devices be versatile and adaptable to a wide...

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App note: Thermal management basics and its importance for LED luminaire performance and cost

Sunday, November 5th, 2017

Article about thermal management on LED luminaire from TT Electronics. Link here (PDF) LED luminaires are being marketed today as an alternative lighting technology that reduces power consumption and maintenance costs for commercial and residential installations. Thermal management has a significant impact upon the lifetime, performance and cost of an...

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App note: Buried capacitive sensors for tamper protection

Sunday, October 29th, 2017

A short app note from Silicon Labs on burying pads to prevent snopping on keypads. Link here (PDF) An individual’s financial matters are increasingly electronic in nature and decreasingly interpersonal. As financial institutions replace human interaction with electronic interfaces such as ATMs, the need to make electronic circuits tamper-proof becomes...

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App note: Driving E ink segmented displays

Sunday, October 29th, 2017

Application note on driving E Ink displays from Renesas. Link here (PDF) E Ink segmented displays are direct drive displays consisting of E Ink Vizplex Imaging Film sandwiched between two electrode layers, the top plane and the backplane, and then encased in an environmental barrier solution to protect the film...

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App note: Grid-connected solar microinverter reference design

Sunday, October 22nd, 2017

A good read from Microchip on the theory behind inverter design connected to grip power. Link here (PDF) There are two main requirements for solar inverter systems: harvest available energy from the PV panel and inject a sinusoidal current into the grid in phase with the grid voltage. In order...

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App note: On-grid solar microinverter on Freescale MC56F82xx/MC56F82xxx DSCs

Sunday, October 22nd, 2017

Application note from Freescale Semiconductor about microinverter solution develop together with Future Electronics. Link here (PDF) In recent years, demand for renewable energy has increased significantly. The development of devices utilizing clean energy such as solar, wind, geothermal, and fuel cells attracts more and more attention. Solar energy harvesting is...

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App note: Implementation of a single-phase electronic watt-hour meter using the MSP430AFE2xx

Sunday, October 15th, 2017

Another energy meter from Texas Instruments using MSP430AFE2xx. Link here (PDF) This application report describes the implementation of a single-phase electronic electricity meter using the Texas Instruments MSP430AFE2xx metering processors. It includes the necessary information with regard to metrology software and hardware procedures for this single chip implementation.

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App note: Atmel AVR465: Single-phase power/energy meter with tamper detection

Sunday, October 15th, 2017

A good read from Atmel on their 8-bit microcontroller single-phase energy meter design. Link here (PDF) This application note describes a single-phase power/energy meter with tamper logic. The design measures active power, voltage, and current in a single-phase distribution environment. It differs from ordinary single-phase meters in that it uses...

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Recent Comments

  • Drone: So these go for around $330 USD and NO published calibration procedure online or otherwise? Given what's inside - I don't think I'll be considering...
  • Pekka Akselin: This is ridiculous!? :-) We are back at 256(!) byte EPROMs that needed multiple, a handful, of voltages to run! :-(
  • KH: Let's try a back-of-envelope calc balancing energies. From MCP1700 datasheet, there are graphs for a 200mA load step. Estimate the energy shortfall as 12uJ. Say...
  • Daniel: It's been a week and my comment is still awaiting moderation. Apparently the CIA doesn't want their involvement known?
  • KH: Agree, so okay, I guess he must have learned from somewhere. 100nF and 1000uF is so far apart, that was jarring; it's more magic incantation...