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Low-Power High-Voltage Motor Control Reference Design

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Running a low-power 3-phase motor control application with high-power system is not very efficient. Our  Low-Power High Voltage Motor Control reference designs shows how to efficiently control high-voltage motors in low-power applications.

This compact and cost-effective high voltage board is targeted to control various high voltage motors such as Brushless DC (BLDC) motors, Permanent Magnet Synchronous Motors (PMSM) and AC Induction Motors (ACIM) in sensored or sensorless operation.

Designing Open Loop Non – Isolated Buck Converter (Part 5/12)

Contributor: 

Diksha
Designing Open Loop Non – Isolated Buck ConverterThe designing of Boost Converter SMPS has been already discussed in the previous tutorials. In this tutorial, an open loop buck converter SMPS will be designed. The Buck Converter is also one of the topologies of the SMPS (Switched Mode Power Supply). These type of SMPS steps down the DC voltage unlike the Boost converters step up the DC voltage.
 
So the buck Converter is also a DC to DC step down converter in which the output voltage is always less than the input voltage. Contrary to Linear Regulators which step down the DC voltage by dissipating the heat, Buck Converters step down the DC voltage through switching regulators and also step up the output current.

Designing Switched Mode Power Supply (SMPS)

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Diksha
Everyone must be familiar with the term - Switched Mode Power Supply or SMPS. Yes, they are used in every personal computer. In fact, the Switched Mode Power Supply is widely used with many other devices. Once it is understood that what SMPS actually is, its countless applications can be easily imagined. 
 
An SMPS is used for converting the electronic power supply efficiently. Any SMPS has some storage components which store electrical energy to supply to the load device and some switching components which turn on and off at high frequencies charging and discharging the storage components.

Designing Close Loop Non-Isolated Boost Converter With Adjustable Output (Part 4/12)

Contributor: 

Diksha
Testing Closed Loop Boost Converter Circuit The closed loop boost converter designed in the previous tutorial though had a constant and regulated voltage at the output but it could not be varied. For a stable output that Boost converter had an error detection circuit. The error detection was done by adding a feedback circuit which continuously checks the error in the output voltage and provided a regulated voltage at the output.
 
For making the output of the circuit adjustable, it must be drawn through a variable resistor. This closed loop boost converter not only had a feedback circuit, its output is also adjustable. Therefore in this tutorial, a closed loop non–isolated boost converter is designed.

Li-Fi: Using Visible Light for Lightning Fast Data Transmission

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Neha Rastogi

Li-Fi: Using Visible Light for Lightning Fast Data TransmissionThe ubiquitous nature of the internet is probably a major reason for making our lives the way it is today. In the present scenario, it has become a necessity of the modern world. Its capabilities are not limited to over knowledge regarding the usage of Wi-Fi. Another superior technology of Li-Fi is ultimately going to change our perception of the internet.

Wi-Fi is a commonly used wireless technology which uses radio waves to connect devices to the internet but with the growing demands and increase in the network congestion, the present technology won’t be able to deliver the desired results for a long time. Consequently, while exploring the possibility of alternate choices the term ‘Li-Fi’ was devised. Here we are going to illustrate the concept of Li-Fi technology, how does it work, and how is it different from the conventional Wi-Fi technology.

Designing Open Loop Non-Isolated Boost Converter With Adjustable Output Voltage (Part 3/12)

Contributor: 

Diksha

The open loop boost converter designed in the previous tutorial had a fixed output voltage respective to the input voltage level. The output voltage of the circuit can be made variable by drawing the output through a variable resistor. The output voltage in this circuit still remains unregulated as no feedback is used.

Therefore in this tutorial, an open loop non–isolated boost converter is designed. The boost converter can be designed in two ways- Open loop boost converter and closed loop boost converter. There are certain design parameters involved in the designing of the boost converter. It is important to understand these design parameters. Any boost canverter can operate in either of the two possible modes of operation.

Designing Closed Loop Non – Isolated Boost Converter SMPS (Part 2/12)

Contributor: 

Diksha
Designing Closed Loop Non – Isolated Boost Converter SMPSThe open loop boost converter designed in the previous tutorial did not have constant and regulated voltage at the output. For a stable output, a Boost converter with error detection circuit needs to be designed. The error detection can be done by adding a feedback circuit which continuously checks the error in the output voltage and provides a regulated voltage at the output.
 
Therefore in this tutorial, a closed loop non–isolated boost converter is designed. The boost converter can be designed in two ways- Open loop boost converter and Closed loop boost converter. In the former, there is no feedback from output to input contrary to the closed loop which has a feedback circuit. So, the output of an open loop boost converter is not regulated. In the latter, there is a feedback from the output to the input. So, the output of a closed loop boost converter is regulated. 

CUI Introduces new Line of wall Plug-in Power Adapters

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Neha Rastogi
CUI Introduces new Line of wall Plug-in Power AdaptersCUI’s Power Group has expanded its portfolio of external medical power supplies by introducing a new line of wall plug-in power adapters. The SWM6, SWM6-USB, SWM12, and SWM30 series can be availed with either North American or European input blades. Besides, these are all certifies to the medical 60601-1 edition 3.1 safety standards for 2x MOPP applications and 4th edition EMC requirements.
 
These AC-DC power supplies feature high efficiency, class II construction, and no-load power consumption as low as 0.075 W. With the introduction of this series, CUI aims to offer customers the most efficient global power solutions for medical, dental, and home healthcare equipment.

Tektronix to Showcase the Latest in Optical Test Innovation for Datacenter Networking at ECOC 2017

Submitted By: 

Neha Rastogi
Tektronix, a leading provider of measurement solutions, is going to showcase the latest in optical test innovation for data center networking at ECOC 2017. This event is the largest optical communications exhibition in Europe, whereby more than 300 companies from 80 countries will help over 5,000 attendees to meet the demand for more bandwidth and increased data center performance.
 
ECOC Exhibitions is the key meeting place for decision makers from across the fiber optic communications technology industry. The exhibition will take place between 18th to 20th September at Gothenburg in Sweden. Tektronix is very excited to host industry experts from leading research and commercial companies to discuss the trends and opportunities for emerging optical communications design.

How to Make an Amazing Raspberry Potter Gesture Control Wand

Submitted By: 

Shalini Verma

Raspberry Potter Gesture Control WandWe have seen various occasions when technology was mixed with creativity to demonstrate universal magic. In this tutorial of Adafruit, get ready to say “Lumos” as this exciting project, known as Raspberry Potter, syndicates everyone’s two beloved things—the open source Raspberry Pi and the magic Potter wand.

This interactive magic band can either be purchased or you can DIY your own by adding a sequin or pearl button to the tip of any wand you have lying around the house. The wand act together with a magic lantern that is essentially a hacked hurricane lamp.