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Swagatam Majumdar
Works at Swagatam Innovations
Attended Ismail Yusuf College, Jogeshwari Mumbai
Lives in Mumbai
3,805 followers|91,793,049 views
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Swagatam Majumdar

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Dear Friends, I appreciate all your valuable comments and queries, I would request you to please comment only in my website for getting quick replies, as it would be difficult for me to reply here in G+ due to lack of time. I hope you will cooperate and bear with me.
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Hey! I couldn't figure out how to comment on the website.
I'm trying to create a circuit with a FSR linked to an auto shut off of 6 hours. How would I link the resistor to the time delay? Any ideas?
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Swagatam Majumdar

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Timer Circuit for Fitness Gym Application
In this post we learn how to make a timer circuit for fitness, or gym workout application. The idea was requested by Mr. Jan. The Request Dear Swagatam, I need a circuit diagram for a timer which is used in a fitness gym. It consists out of 5 x incandescent...
In this post we learn how to make a timer circuit for fitness, or gym workout application. The idea was requested by Mr. Jan. The Request Dear Swagatam, I need a circuit diagram for a timer which is used in a fitness gym. ...
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Sir
I want to make a RC driver for 2835 LED/.5w for 3w to 20w. I want your help in making this RC driver.
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Swagatam Majumdar

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Induction Heater Circuit for Labs and Shops
The post explains how to make small homemade induction heater circuit for laboratories and shops for carrying out small scale heating jobs such as melting ornaments, or boiling small quantity of liquids using electricity or battery The idea was requested by...
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Swagatam Majumdar

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Simple Solar LED Street Light System using LM338 IC
The discussed circuit for a simple solar LED street light system is specifically designed for the new hobbyist who can build it simply by referring to the pictorial schematic presented here. Due to its straightforward and relatively cheaper design the syste...
The discussed circuit for a simple solar LED street light system is specifically designed for the new hobbyist who can build it simply by referring to the pictorial schematic presented here. Due to its straightforward and re...
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Pls can u help me to list each of the components used for the project
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Swagatam Majumdar

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Diesel Generator RPM Controller Circuit
The post discusses a diesel generator RPM controller circuit for boats using PWM technique and also using a simple triac shunt circuit. The idea was requested by Mr. Dave. The Request Hi, I have been looking with interest at your electronic circuits web sit...
The post discusses a diesel generator RPM controller circuit for boats using PWM technique and also using a simple triac shunt circuit. The idea was requested by Mr. Dave. The Request Hi, I have been looking with interes...
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Dear sir plz use SG3525 pulswidth modulator and make a complete cricuit for unintreaptable power supply and plz post it 
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Swagatam Majumdar

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Stepper Motor Explained!
 In this post we are going to learn about stepper motor. We will be
exploring what stepper motor is, its fundamental working mechanism,
types of stepper motor, stepping modes, and lastly its advantages and
disadvantages.                                By...
In this post we are going to learn about stepper motor. We will be exploring what stepper motor is, its fundamental working mechanism, types of stepper motor, stepping modes, and lastly its advantages and disadvantages. ...
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hello sir. i have a problem with your circuit at http://www.homemade-circuits.com/2013/04/how-to-modify-square-wave-inverter-into.html. I tried it in multisim but it doesn't work right. I want to know how to add a chopper between my oscillator and power amp so I can make a pure sine wave inverter. My inverter looks similar to this >> http://www.eleccircuit.com/wp-content/uploads/2007/04/12-volt-to-220-volt-inverter-500w.jpeg

Please help me sir. Thank you for your kindness :)
homemade-circuits.com - How to Modify a Square Wave Inverter into a Sine Wave Inverter - Concept Explored - Electronic Circuit Projects
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Swagatam Majumdar

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Piezo Mat Electricity Generator Circuit
In this post we learn a method to harvest free electricity from a  piezo embedded mat by walking on it, and try to investigate how this energy may be used for charging a small battery. Normally a human body carries a huge amount of energy which simply gets ...
In this post we learn a method to harvest free electricity from a piezo embedded mat by walking on it, and try to investigate how this energy may be used for charging a small battery. Normally a human body carries a huge am...
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Swagatam Majumdar

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Electronic Engine Speed Governor Circuit
The post discusses an electronic engine speed governor or controller circuit using an RPM feedback signal loop through a hall effect sensor network. The idea was requested by Mr. Imsa Naga. The Request Thank you very much for your time. I believe this circu...
The post discusses an electronic engine speed governor or controller circuit using an RPM feedback signal loop through a hall effect sensor network. The idea was requested by Mr. Imsa Naga. The Request Thank you very much f...
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Swagatam Majumdar

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Automatic Street Light Dimmer using Arduino
In this post we are going to construct an Arduino automatic street light dimmer circuit,
which can reduce its brightness when no vehicle is passing in the road
to save power. By Girish Radhakrishnan We will be exploring the methodology of sensing the
veh...
In this post we are going to construct an Arduino automatic street light dimmer circuit, which can reduce its brightness when no vehicle is passing in the road to save power. By Girish Radhakrishnan We will be exploring the ...
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Swagatam Majumdar

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Universal Battery Charger Circuit
This universal automatic battery charger circuit is extremely versatile with its functioning and can be adapted for all types of battery charging and even for solar charge controller application. A universal battery charger circuit must have the following m...
This universal automatic battery charger circuit is extremely versatile with its functioning and can be adapted for all types of battery charging and even for solar charge controller application. A universal battery charger ...
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Swagatam Majumdar

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Submersible Timer Circuit with Pause Feature during Mains Failures
The post explains a submersible pump timer circuit programmed to cycle at 60 minute interval for watering the fields consistently. It also includes a time pausing feature which ensures that as soon as the mains power restores the timer resumes the cycle fro...
The post explains a submersible pump timer circuit programmed to cycle at 60 minute interval for watering the fields consistently. It also includes a time pausing feature which ensures that as soon as the mains power restores...
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Pls sir I need a circuit for sg3525 with 3205 and pls what will be my voltage on pin 11and 14 of the ic if I don't want my mosfet to burn when I try to vary my output on the circuit,tnx.
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Swagatam Majumdar

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Calculating Capacitor Charge/Discharge Time using RC Constant
The RC time constant , also called tau, the time constant (in seconds) of an RC circuit, is equal to the product of the circuit resistance (in ohms) and the circuit capacitance (in farads), i.e. Capacitor charge and discharge periods is usually calculated t...
The RC time constant, also called tau, the time constant (in seconds) of an RC circuit, is equal to the product of the circuit resistance (in ohms) and the circuit capacitance (in farads), i.e. Capacitor charge and discharge...
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i appreciate your enthusiasm, but you must comment in my website to get the replies from me...so please get started...
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Science Equals Truth
Introduction
I am an electronic hobbyist, inventor, schematic/PCB designer, manufacturer, SEO Expert, Website Designer.

 I am also an avid publisher, I enjoy posting electronic related articles in my website: http://www.homemade-circuits.com/  where interested viewers get the opportunity to read many innovative electronic circuit ideas, exclusively designed and developed by me.


Education
  • Ismail Yusuf College, Jogeshwari Mumbai
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Gender
Male
Work
Occupation
Freelance Electronic Engineer
Employment
  • Swagatam Innovations
    Publisher, Writer, Inventor, Schematic/PCB Designer, SEO Manager, Website Designer, Administrator, present
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Mumbai