How thyristors work

May 06, 2022

 Transistors are the tiny electronics components that changes the world, you'll find them in every electronics items like telephones, computers, calculators,  radios and hearing aids etc. They are amazingly versatile, but that doesn't mean they can do everything. Although we can use them to switch tiny electrical current on and off (that is the basic principle behind computer memory), and transform small current into somewhat large ones(that's how an amplifier works), they are not very useful when it comes to handling much bigger currents. Another drawback is that they turn off altogether as soon as the switching current is removed, which means they are not so useful in devices such as alarms where you want a circuit to trigger and stay on indefinitely. For those sorts of jobs, we can turn to a somewhat similar electronics components called a thyristor, which has things in common with diodes, resistors and transistors. Thyristors are reasonable easy to understand. let's see the full explanation.

What are thyristors?

First of all let's know about some terminology. Some people use the term silicon-controlled rectifier (SCR) interchangeably with "thyristor". In fact, silicon-controlled rectifier is a brand name that General Electric introduced to describe one particular kind of thyristor that it made. There are various other kinds of thyristors too (including ones called diacs and triacs, which are designed to work with alternating current), so the terms aren't completely synonymous. Nevertheless, this article is about keeping things simple, so we'll just talk about thyristors in the most general terms and assume SCRs are exactly the same thing. We'll refer to them as thyristors throughout.

Three connections

So what is a thyristor? It's an electronic component with three leads called the anode (positive terminal), cathode (negative terminal), and gate. These are somewhat analogous to the three leads on a transistor, which you'll remember are called the emitter, collector, and base (for a conventional transistor) or the source, drain, and gate (in a field-effect transistor, or FET). In a conventional transistor, one of the three leads (the base) acts as a control that regulates how much current flows between the other two leads. The same is true of a thyristor, the gate controls the current that flows between the anode and the cathode.

Transistors versus Thyristors

Both transistor and thyristor are 3 terminal devices. But the three terminals of the transistor are emitter, base and collector and that of thyristor are anode, cathode and gate.

As already mentioned, transistors and thyristors are both semiconductor devices. They are now widely employed in switching operations because of their numerous advantages such as noiseless operation owing to absence of moving parts, very high switching speed (say 109 operations per second), high efficiency, low maintenance, small size, little weight and trouble free service for long period, large control current range (say from 30 A to 100 A) with small gate current of few mA over mechanical switches or electro-mechanical relays. However, transistors and thyristors both have their own areas of applications.

OnePlus Nord CE 2 5G price and full specifications

April 02, 2022

OnePlus Nord CE 2 Summary

 Upgrade to a new phone by buying the OnePlus Nord CE 2 that is available at the best prices online. Launched on February 17, 2022 (Official) in India, the mobile is available with striking features and adequate specifications at an introductory price of Rs 24,999.

The camera of the phone helps you capture stunning pictures as it comes with a Single camera setup on the rear which has 64 MP + 8 MP + 2 MP cameras. While on the front, the mobile sports a 16 MP front camera so that you can click some amazing selfies and make video calls.

You will indulge in an immersive way while watching movies or playing games on this phone as it features a 6.43 inches (16.33 cm) display that has a resolution of 2400 x 1080 Pixels.

Furthermore, the aspect ratio of the OnePlus Nord CE 2 is 20:9 so that you can enjoy vivid and crystal clear visuals while watching videos, playing games, or streaming movies online.

Besides, the mobile runs on the Android 11 operating system that offers you faster updates and is packed with 4500 mAh battery that lets you enjoy watching movies, playing games, and do a lot more on a single full charge.

The mobile does not lag performance-wise as it is equipped with Octa core (2.4 GHz, Dual core, Cortex A78 + 2 GHz, Hexa Core, Cortex A55) MediaTek Dimensity 900 and comes with 6 GB of RAM and 128 GB of inbuilt storage. Hence, it offers seamless and responsive performance while accessing multiple apps. Also, you can store various files like songs, videos, games, and more without worrying about space constraints.

Sensors on the mobile include Accelerometer, Electronic Compass, Gyroscope, Ambient Light Sensor, Proximity Sensor, Sensor Core.

This durable and easy to carry phone measures 160.6 mm x 73.2 mm x 7.8 mm and weighs around 173 grams.

OnePlus Nord CE 2 Price in India

OnePlus Nord CE 2 smartphone price in India is Rs 24,999. OnePlus Nord CE 2 was launched in the country on February 17, 2022 (Official). Thesmartphone comes in 1 other storage and RAM variants - OnePlus-Nord-CE-2-5G-128-GB-8-GB. As for the colour options, the OnePlus Nord CE 2 smartphone comes in Bahama Blue, Gray Mirror colours.

How to create free blog on google and earn money

March 27, 2022

 Are you also looking for online earning, today i'm going to share with you how you can earn money  from online work, blogging is a great way to not only make money but to boost your online influence. So if you are looking for ways to create a free blog, this detailed guide is for you.

 Blogging is really a proven way to make money. Many people have been making a decent income from blogging. I can say that anyone with hard work can make money from blogging.

If you are looking for ways to start a free blog, I highly recommend you to consider using Blogger blogging platform as it is not only easy to set up but you can start earning money from Google AdSense as well.

Here are some steps to create a free blog on blogspot and start making money from AdSense.

Step-1 : Sign up for

Step-2 : Enter a name for your Blog.

Step-3 : Start creating new blog post.

Step-4 : Google AdSense.

What to do after creating your blogspot?

Step-1 : Start creating SEO friendly posts.

Step-2 : Focus on getting AdSense approval.

Step-3 : Find out ways to increase your AdSense earning.

Creating blog using is really so easy. I'll give you some instructions and follow them accordingly.

Step-1 : Sign up for

First of all, go to home page and sign up. (If you don't have Email, then first create an Email) home page
You can see the upper image, this is the Blogger home page. In this home page you can also see the Create your Blog Button, just click on it to create your Blogger account.

Samsung Galaxy S22 Ultra Price

March 26, 2022

 Samsung Galaxy S22 Ultra Price and full specifications

Samsung’s latest flagship smartphones, the Samsung Galaxy S22, Galaxy S22+, and the Samsung Galaxy S22 Ultra have finally gone on sale in India. The Samsung Galaxy S22 series starts at a price of Rs 72,999 for the base variant of the vanilla Galaxy S22. In India, Samsung has also announced a bunch of deals and offers that buyers can take advantage of while buying Samsung’s 2022 flagships. These include offers on Samsung Galaxy Watch 4 and the Galaxy Buds 2 as well, which are available at a heavy discount, if bought alongside the Galaxy S22 series. Let us take a look at all the offers and prices on the Samsung Galaxy S22 series in India.

Price and Specification:

The Samsung Galaxy S22 vanilla is priced in the country at Rs 72,999 onwards for the base 8GB RAM + 128GB storage variant. The 8GB RAM + 256GB storage variant is priced at Rs 76,999 in India. The Samsung Galaxy S22+, on the other hand, is priced at Rs 84,999 onwards in India for the 8GB RAM + 128GB storage model, and the 8GB RAM + 256GB storage variant is priced at Rs 88,999 in India. The Samsung Galaxy S22 Ultra, on the other hand, is priced at Rs 1,09,999 onwards for the 8GB RAM + 256GB storage variant. The 12GB RAM + 512GB storage variant is priced at Rs 1,18,999 in India. The Samsung Galaxy S22 series is available for purchase on Amazon, Samsung online store, and offline retail outlets across the country.

The Samsung Galaxy S22 (vanilla) comes with a 6.1-unch full-HD+ Dynamic AMOLED 2X display with a 120Hz refresh rate. The smartphone is powered by a Qualcomm Snapdragon 8 Gen 1 chipset paired with 8GB of RAM and up to 256GB of internal storage. The smartphone comes with a triple rear camera setup that includes a 50-megapixel primary shooter, a 12-megapixel ultra wide angle lens, and a 10-megapixel telephoto shooter.

The Samsung Galaxy S22+ comes with a 6.6-inch full-HD+ Dynamic AMOLED 2 display with a 120Hz refresh rate. The smartphone is also powered by a Snapdragon 8 Gen 1 chipset paired with 8GB RAM and up to 256GB storage. The smartphone also comes with the same camera module as the vanilla variant - a triple rear camera setup that includes a 50-megapixel primary shooter, a 12-megapixel ultra wide angle lens, and a 10-megapixel telephoto shooter.

The Samsung Galaxy S22 Ultra is the top-spec variant in the Galaxy S22 series. It comes with a 6.8-inch Edge QHD+ Dynamic AMOLED 2X display with 120Hz refresh rate. The smartphone, like its smaller siblings, is also powered by a Qualcomm Snapdragon 8 Gen 1 chipset paired with up to 12GB of RAM and up to 512GB of internal storage. The Samsung Galaxy S22 Ultra comes with a quad camera setup on the back that includes a 108-megapixel primary shooter, a 12-megapixel ultra-wide angle camera, and two 10-megapixel telephoto shooters.

BSNL 5G Launch Date

March 26, 2022

BSNL is going to lunch both 4G and 5G this year 15th August 

We already know that the state-owned telecom company BSNL (Bharat Sanchar Nigam Limited) is about to launch its much awaited 4G network. BSNL is going to launch 4G network in the country on 15th August this year. This time, a senior official of the company said that BSNL will also launch 5G network at the same time. Are you surprised? Thinking that companies like Reliance Jio, Vodafone Idea or Airtel have not been able to launch 5G network in the country yet, will BSNL bring 5G network in India before them ? In fact, on 15th August, along with 4G, BSNL is going to bring 5G (5G NSA) network of non-stand-alone mode. This was announced by the Center for Development of Telematics at the 5th Congress 2022 event of the Economic Times.

Rajkumar Upadhyay, executive director and chairman of C-dot or the Center for the Development of Telematics, says, “While we are working on our Proof of Concept or POC, we are also working on our 5G network. And we will be able to bring that 5G non-stand Alon or NSA by August, 2022. So the service can be started from that time, which is going to be 4G plus 5G. ” Mr Upadhyay further said that 5G NSA will be ready for deployment by this year’s Independence Day.

 According to a report, the Confederation, a Tata Consultancy Services or TCS-backed confederation, will conduct field trials in Ambala and Chandigarh, two cities in the country, to demonstrate the 5G network employed by the state-owned telecom company. Although previous consortiums led by L&T, HFCL and Tech Mahindra were selected for field trials, the Confederation later withdrew.

In the words of Rajkumar Upadhyay, “We will launch 5G NSA by August this year and will be able to bring 5GSA next year.” The C-Dot executive further said that in the third quarter of 2023, we will be able to bring BSNL 5G SA or Stand Alone network. It should be noted that the non-stand Alon network is not for general human use, it is for trial only. People will be able to use BSNL as soon as it brings its 5G stand-alone network. In other words, the people of the country will be able to use BSNL 4G from August this year and by the end of 2023 BSNL 5G network will reach them.

An official of Telecommunications Consultants India Limited or TCIL said that they are working with C-Dot on a variety of products, one of which is the home-made core network for BSNL. He added that his company is always open to share source code with vendors for cheap domestic products.

Samsung Galaxy S21 FE 5G price in India

March 20, 2022

 Summary :

The most noticeable change in the Samsung Galaxy S21 FE 5G compared to its predecessor is its design. It's also a lot lighter at 177g. The 6.4-inch AMOLED display is vibrant and has satisfying levels of brightness. It has a 120Hz peak refresh rate and Corning Gorilla Glass Victus for protection. The Galaxy S21 FE 5G gets the same Exynos 2100 SoC as seen in the flagship S21 series. It also comes with Dolby Atmos, an IP68 certification for dust and water resistance, and wireless charging.

It's a no-nonsense value flagship that does everything you ask of it, and does it well. What I liked most about it was the low weight, which made it very comfortable to carry in my pocket or hand. The Samsung Galaxy S21 FE 5G supports HDR10 playback and apps such as Netflix recognise this ability too. The overall camera experience is similar to that of the Galaxy S20 FE 5G, which is to say, they are very dependable.

If you haven't already snagged the launch offer and bought the Galaxy S21 FE 5G, I'd say the Galaxy S20 FE 5G offers far better value right now. It's practically the same as the new model, so you really aren't losing out on anything. The Galaxy S21 FE 5G will make more sense once its price drops and the Galaxy S20 FE 5G is phased out of the market, but till then, I'd recommend getting the older model instead.

Pro-grade Camera with AI Single Take, Portrait Mode, Night Mode and 30X Space zoom. Dual Recording: Film in both wide and selfie angles at the same time | 12 MP F1.8 Main Camera (Dual Pixel AF & OIS) + 12 MP Ultra-wide Camera (123° FOV) + 8 MP Telephoto Camera (3x Optic Zoom, 30X Space Zoom, OIS) | 32 MP F2.2 Front Camera. 16.28cm (6.4-inch) Dynamic AMOLED 2X Display with120Hz Refresh rate for Smooth scrolling. Intelligent Eye Comfort Shield, New 19.5:9 Screen Ratio with thinner bezel, 1080 x 2340 (FHD+) Resolution. 5G Ready with Octa-core Exynos 2100 (5nm) Processor. Android 12 operating system. Dual Sim. Iconic Contour Cut Design with 7.9 mm thickness. Gorilla Glass Victus and IP68 Water Resistant. 4500 mAh battery with Super Fast Charging & Fast Wireless Charging. Wireless PowerShare to charge your compatible devices using your phone.


General  :

Brand : Samsung
Model : Galaxy S21 FE 5G
Price : 54,999 (INR)
Released date : 4th jan. 2021
Dimensions (mm) : 155.70 x 74.50 x 7.90
Weight : 177.00 grams
IP rating : IP68
Battery capacity : 4500 mAh
Wireless charging : Yes
Colours : Graphite, Lavender, Olive, White

Display :

Refresh rate : 120 Hz
Screen size : 6.40 inches
Touch screen : Yes

Hardware :

Processor : octa-core
RAM : 8 GB
Storage : 128 GB

Camera :

Rear camera : 12 MP (f/1.8) + 12 MP (f/2.2) + 8 MP (f/2.4)
Rear auto focus : Yes
Rear flash : Yes
front camera : 32 MP (f/2.2)

Software :

OS : Android 12
Skin : One UI14

Connectivity :

Wi-Fi : Yes
GPS : Yes 
Bluetooth : Yes
NFC : Yes
USB Type- C : Yes
Number of SIMs : 2

SIM 1 :

SIM Type : Nano-SIM
3G/4G/LTE/5G :Yes

SIM 2 :

SIM Type : Nano-SIM
3G/4G/LTE/5G : Yes

Sensors :

In-Display fingerprint sensor : Yes
Magneto meter : Yes
Proximity sensor :Yes
Accelerometer : Yes
Ambient light sensor : Yes
Gyroscope : Yes
Barometer : Yes

Best phone under 15,000 rupees in India | Poco m4 Pro 5G

March 19, 2022

     Hi guys, are you searching for a best Smartphone under 15,000 rupees. let's see the best phone under 15,000 rupees. In my opinion Poco M4 pro 5G is one of the best phone, then let's start with it's summary.

Summary :

    Poco M4 Pro 5G mobile was launched on 9th November 2021. This phone comes with 4 GB of RAM and 64 GB of ROM expandable Upto 1 TB , a 6 nm Mediatek Dimensity 810 processor, and a Turbo RAM feature that can provide an additional 3 GB of RAM, is an intuitively designed phone for all your multitasking needs. 

    Its attractive design ensures that this phone steals the spotlight wherever you take it. With a 16.76 cm (6.6) Smart display, a refreshing rate of 90 Hz, and a touch sampling rate of 240 Hz, touchscreen display offering a resolution of 1080 x 2400 pixels and an aspect ratio of 20:9, this phone creates an engaging visual experience. This phone boasts a 5000 mAh  Lithium-ion polymer battery that lasts for a substantial amount of time. Additionally, it comes with a 33 W rapid charging interface that charges your phone completely in around 60 minutes. 

    As far as the cameras are concerned, the Poco M4 Pro 5G on the rear packs a dual camera setup featuring a 50-megapixel (f/1.8) primary camera, and an 8-megapixel (f/2.2) camera. The rear camera setup has autofocus. It has a single front camera setup for selfies, featuring a 16-megapixel sensor with an f/2.45 aperture. It has 3.5 mm headphone jack and USB type-c charging port.

    The Poco M4 Pro 5G is a dual-SIM (GSM and GSM) mobile that accepts Nano-SIM and Nano-SIM cards. The Poco M4 Pro 5G measures 163.56 x 75.78 x 8.75 mm (height x width x thickness) and weighs 195.00 grams. It was launched in Cool Blue, Poco Yellow, and Power Black colours. Connectivity options on the Poco M4 Pro 5G include Wi-Fi, GPS, Bluetooth v5.10, Infrared, USB Type-C, FM radio, 3G, 4G (with support for Band 40 used by some LTE networks in India) , and 5G. Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, gyroscope, proximity sensor, and fingerprint sensor.

Specifications :

Brand : Poco

Model : M4 Pro 5G

Price in India : 14,999/-

Released date : 9th Nov. 2021

Lunched in India : Yes

Dimensions (mm) : 163.56 x 75.78 x 8.75

Weight (g) : 195.00

Battery capacity : 5000 mAh

Display :

Refresh rate : 90 Hz

Screen size (inches) : 6.60

Touch screen : Yes

Resolution : 1080 x 2400 pixels

Aspect ratio : 20:9

Hardware :

Processor : MediaTek Dimensity 810, octa-core

RAM : 4 GB

Internal Storage : 64 GB

Expandable storage : Yes

Expandable Up to : 1 TB

Camera :

Rear camera : 50 MP + 8 MP

Rear auto focus : Yes

Front camera : 16 MP

Software :

OS : Android 11

Skin : MIUI 12.5 for POCO

Connectivity :

Wi-Fi : Yes

GPS : Yes

Bluetooth : Yes, v5.10

USB Type-C : Yes

Headphone : Yes, 3.5mm

FM : Yes

Number of SIMs : 2


SIM type : Nano-SIM

3G/4G/LTE/5G : Yes

Sensors :

 Fingerprint sensor : Yes

Magnetometer : Yes

Proximity sensor : Yes

Accelerometer :  Yes

Ambient light sensor : Yes

Gyroscope : Yes

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