According to a Survey taken by Women’s Engineering Society in 2017, only 11% of the worlds engineering workforce are Women. Surprising enough, another statistics from Joint Council for Qualifications, shows that girls normally out-perform boys in STEM (Science, Technology, Engineering and Math) subjects. Then why don’t we just see more women Engineers in the field yet?
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In simple terms, the oscillator is a circuit which converts DC power from the supply source to the AC power to the Load. Oscillator system is built using both active and passive components and it is used for the production of sinusoidal or any other repetitive waveforms at the output without any application of an external input signal. We discussed few oscillators in our…
The electric vehicle market is picking up quite rapidly across the globe. Estimates show that the number of electric vehicles on the road around the world will hit 125 million by 2030.Global market for Electric Vehicles (EV) and Hybrid. To control energy flow and optimize efficiency in HEV/EV powertrain subsystems such as Traction Inverters, On-Board Chargers (OBC…
In the previous tutorial, we saw how a Dual Power Supply Circuit is designed. Now, we learn about Dual Converters, which can convert AC to DC and DC to AC at the same time. As the name suggests, Dual Converter has two converters, one converter works as a rectifier (Converts AC to DC) and the other converter works as an inverter (converts DC into AC). Both converters are…
A nominal lithium cell is rated for around 4.2V only, but in its applications like EV, portable electronics, laptops, power banks etc we require a lot higher voltage than its nominal voltage. This is the reason why designers combine more than one cell in series to form a battery pack of higher voltage values. As we know from our previous Electric Vehicle battery article,…
An oscillator is a mechanical or electronic construction which produces oscillation depending on few variables. We all have devices which need oscillators like a traditional clock or a wristwatch. Various types of metal detectors, computers where microcontroller and microprocessors are involved use oscillators, especially electronics oscillator which produces periodic…
Just as gas (petrol/diesel) is important for bikes, trucks and cars (yeah, excluding Teslas!) to move, so is electric power for most of the electronics applications and more so, for embedded system based applications which are usually battery (limited energy) powered, from the regular mobile phones to smart home devices amongst others.
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In power systems, harmonics are defined as positive integer multiples of the fundamental frequency. Harmonic is a voltage or current occurs at a multiple of the fundamental frequency. It is often regarded as noise in the power line.
The harmonics in the power system can be classified into two types: current…
Jagatheeswaran Senthilvelan is currently the Head of Innovation and Technology for a company called Fluxgen Technologies which provides cost effective IoT solutions for energy monitoring and management requirements. He has been involved in the development of various end to end IoT solutions; one such example is to measure and manage the water infrastructure at Titan…
DIAC is a semiconductor device which has three layers and two junctions. The word DIAC consists of two parts, DI and AC. The DI stands for the diode (or two. Like Di, Tri, Quad, Penta etc.) and AC stands for Alternating Current. DIAC is the acronym of the diode for alternating current.
In the below image the DIAC…
According to the BNEF forecasts, the growth of EVs in India is slow because of the shortage of charging infrastructure and lack of affordable models. The growing market of EV, demands quality charging stations across the city to support daily commute of EV users and EVI Technologies is doing exactly that.
The company…
In the previous tutorials, we have learned about OpenCV and done some basic image processing and then in next tutorial we have done some image manipulation in OpenCV like cropping, rotation, image transformation etc. So in continuation with previous Image Manipulation tutorial, here we learn some more image manipulation techniques like and at the end of the…
