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Earlier, we have already published a which are collected from different sources for the convenience of engineering students. So, now we are providing the list of the top electrical mini projects ideas in this page. As many engineering students are searching for the best electrical projects from the 2nd year and 3rd year, we are providing this list of projects. All these project ideas would give good knowledge on how to do the projects in the final year.

Emperature Related Post – So, we hope this list of electrical mini projects ideas are more helpful for many engineering students. You may write your comments and new projects ideas also by visiting our contact us page. Here is a list of top electrical mini projects: •: This project shows the controlling of appliances connected to the power grid using a PC remotely. It consists of RF transmitter and receiver, microcontroller. •: Generally, in case of failure of power supply alternative methods were used such as generators, inverters etc. This project shows automatic change over switch that switches DC power automatically to battery or AC to DC converter if there is failure.

•: This paper describes the simulation model of three phase induction motor using matlab SIMULINK. The inputs given to this are power source and load torque,outputs obtained are speed and electromagnetic torque.

•: The circuit shown here gives early warning if the brake of the vehicle fails. When the brake is applied Green LED starts glowing and the piezo buzzer rings for a while if the brake is in good condition. It there is any fault in the brake Red LED glows and buzzer does not produce any sound. •:This project uses a PIR sensor and an LDR for efficient use of lighting system. This system considers two factors, One is the light intensity of the room, while the second one is presence of any one in the room.

Light intensity of the room is measured by the LDR sensor, while the Human presence is measured by the PIR sensor. Accordingly the lights are switched on and off. •:This project shows charging a battery wirelessly. Energy is transferred from transmitter to the receiver using mutual inductance principle. •: Starting of a induction motors is very difficult task as they require more current and torque initially. There are many methods to do this.

This project shows starting of an induction motor using SCR firing and triggering. •:This circuit shows a simple ON and OFF switch using NE555 timer. Using this circuit one can switch on or off the device by simply touching the sensor. A piezo sensor is used for touch sensing.

•: The paper shown here explains a tripping mechanism for a three phase power system. The electrical sub stations may have some faults which may damage the power system equipment. So to avoid this a tripping mechanism is employed. •:Here is the project showing radar that can detect the range of an object.This project uses arduino and Ultrasonic sensor for calculating the range. •:The aim of this project is to develop a circuit that can generate high voltage using MARX generator.

The MARX principle used in this project can generate the pulse in the range of KV, which is used to test insulation of electronic devices such as transformers,power carrying lines etc. The present circuit employs a 555 timer, Capacitors, MOSFET, Diodes. •:Phase sequence checking is very important in 3 phase supply. Because in 3 phase if there any phase reversal it may damage the device completely. This project shows the system for checking the phase of the supply. •:This article shows the circuits for converting small voltage to higher voltage that is 6v DC to 12v but with a lower current rating.

•:This project shows generation of high DC voltage from Cockcroft –Walton multiplier. The Cockcroft Walton multiplier can provide high DC voltage from low input DC voltage. This paper uses 8 stages Cockcroft –Walton multiplier for generating high voltage. •: Rating of electrical appliances determines the power utilised by them to work properly. This project shows the controlling of that AC power applied to the devices. This is done using IGBT/Mosfet. •:This project shows a temperature controlled system.

When the temperature raises more than a threshold value this system automatically switches on the fan. •: This project shows measuring of solar energy using pic microcontroller and sensors. •:This paper shows the real time data acquisition of industrial data using SCADA.

The data acquired is displayed on the PC. This also alerts the user by ringing an alarm when the real time conditions goes beyond the threshold values. •:This project shows the controlling of home appliances using DTMF technology. This project uses AVR microcontroller for controlling the appliances. •: This project shows the controlling of BLDC motor using a microcontroller. It employs a closed loop control technique.

•:This project shows a no break power supply circuit,that is it continuously supplies power to the load through different sources like mains or inverter or generator. •:Here a Single phase PWM inverter is proposed using 8051 microcontroller.

The proposed design is low cost, simple, compact in size. •:Load shedding is the process in which electrical utilities reduce the load when the demand for electricity exceeds the limit. This project shows the automatic load shedding process using microcontroller. This sets the time for which the load is to be switched on/off. •:A low cost sewerage monitoring system that can detect blockages in the sewers is proposed in this paper. This system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room.

•:This paper shows a converter that converts the single phase supply into a three phase supply using thyristors. Go through the paper for more information. •:Here is the circuit showing smoke detector alarm.

This can also be used to indicate the fire. This circuit uses a smoke detector and a LM358 Comparator. •:This paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed. •:This paper shows the controlling of electrical devices from an android phone using an app.

This project uses arduino for controlling the devices. •:This circuit shows the over load protection of the transformer which simply cuts the load through a relay if over load condition occurs. As over load may damage the transformer it is necessary to protect the transformer from overload condition.

•:Here is the DIY project showing speed control of DC motor system using PWM through a PC. Here a wireless module, arduino are used for communication between the PC and the motor. •:This paper serves as a general and technical reference to transmission of data using a power line carrier communication system which is a preferred choice over Wireless or other Home Networking technologies due to the ease of installation, availability of AC outlets, higher throughput, low cost, reliability and security. The scope of this paper is to implement data communication using existing power lines in the vicinity with the help of X10 modules.

•:A cordless power controller (CPC) is a remote controller that can control the electrical appliances.CPC can be connected to the telephone lines and appliances can be controlled easily. •:The proposed system is capable of answering to the calls through a pre recorded voice message.

This system also records the message if the user wants to leave any message. •:Frequency counters measures the frequency of a signal.

Here in this project a frequency counter is proposed which uses two counters and two timers and a timer IC to produce clock signals. •:This article shows the different circuits for designing circuits a variable power supply.Three circuits were shown here. The first circuit shows a variable power supply of range 1.2 to 30v with 1 ampere of current,while the second one shows 0-28v variable voltage and 6-8A current. Third one shows 5-12 variable voltage. •:This project shows a highway alert signal lamp. When any vehicle approaches the rear window of the vehicle it glows a tricolour high bright LEDs. They will glow until the vehicle over takes.

•:The automatic bell system shown here rings the bell automatically at the start of each hour. It is required to switched on or off manually. It takes the time from RTC and the ringing of the bell is controlled by the 8051 microcontroller. This is a simple and very inexpensive system that can be used in schools. •:This system can be used in Paying guest houses, hotels etc.A circuit is used to count the number of coins. This count is displayed on the segment.

Power is given to the load until the count on the seven segment is decremented to the zero. •:This project shows a fuse and power failure indicator circuit. This circuit follows a simple logic using LDR and LED. When the power is failed or fuse is blown the LDR goes into and dark speaker connected to the circuit starts ringing. •:This paper presents automatic monitoring and controlling of boilers in industries. This system uses GSM technology for communication.

User can check the status of the boiler from anywhere in the world, where GSM is available. If the temperature of the boiler is raised to threshold value a message is sent to the user. It can be controlled using the phone. •: Auto Night Lamp Using High Power LEDs is a circuit which turns ON the LED lights interfaced to it at night time and it turns OFF the lights automatically when it is day. It is a light sensing device as it uses a light dependent resistor. It is a very useful circuit especially when used in street lights which can be turned ON and OFF automatically. •: This is a simple alarm circuit to thwart snatching of your valuables while travelling.

The circuit kept in your bag or suitcase sounds a loud alarm, simulating a police horn, if someone attempts to snatch your bag or suitcase. This will draw the attention of other passengers and the burglar can be caught red handed. In the standby mode, the circuit is locked by a plug and socket arrangement (a mono plug with shorted leads plugged into the mono-jack socket of the unit).

When the burglar tries to snatch the bag, the plug detaches from the unit’s socket and activates the alarm. •: This one of the most useful project in our real life. It helps us in watering plants automatically without any human interference. We may also call it as Automatic plant irrigation system. We know that people do not pour the water on to the plants in their gardens when they go to vacation or often forget to water plants.

As a result, there is a chance to get the plants damaged. This project is an excellent solution for such kind of problems. •: The Water Level Indicator employs a simple mechanism to detect and indicate the water level in an overhead tank or any other water container. The sensing is done by using a set of nine probes which are placed at nine different levels on the wall of the tank (with probe1 to probe8 placed in ascending order of height, common probe (i.e. A supply carrying probe) is placed at the base of the tank).

The level 8 represents the “tank full” condition while level 1 represents the “tank empty” condition. It can be used in automatic ON and OFF of the motor depending on the water level. It can also be used as fuel level indicator in vehicles. •: By using this circuit, we can control any house hold appliance with the help of remote.

Electronic appliances like television, radio, air conditioner etc. Can be controlled.

In this project, there are two parts: one is the transmitting section (remote) and the other is receiving section which is stable and connected to the appliance. •: Here is the circuit diagram of battery charger circuit using Silicon Controlled Rectifier. Using this circuit, we can automatically charge a battery when its charge is below a threshold and the circuit is disabled when the battery attains full charge. SCR is used in rectification circuits, inverter circuits, power control circuits, etc. •: This Stun gun circuit produces high voltage and low current signal.

It is mostly used as a weapon to stun or send shock waves to the target with the intention to weaken or paralyze it. It can be use in modern warfare, protection from intruders or animals.

•: Here we designed an analog to digital converter to work as a Digital Voltmeter using a low power, three and half digit A/D converter IC L7107. It can be used to measure both AC and DC voltages in the range of 200 mV to 2 V with an interval of 0.001 V. •: This is a circuit which helps to check or test your electronic projects at your workbench and also to charge the Mobile phone batteries. This circuit is also very useful during power cuts (blackouts) as it can also work as an emergency light.

•: This is another kind of circuit which helps to convert 12V DC to 24V DC. It can be used in appliances that require 24 V DC supply like radios, lights, automobile electronics, special purpose UPS etc.

•:This Celsius Scale Thermometer circuit is designed using AT89C51 (microcontroller) and LM35 (analog temperature sensor). This circuit works on analog to digital conversion principle. The temperature can be displayed using an LCD. It can be used at homes, mobile places like cars to keep a track of the temperature. •: This is a simple circuit which helps to detect the presence of an activated cell phone by detecting the signals in the frequency range of 0.9 to 3GHz. It helps in tracking mobile phones particularly in examination halls or important conferences. It can also be used to detect the mobile phones of spies or in case of unauthorized data transmission.

The radius of this detector is 1.5 meters. •: The main principle of the circuit is to switch ON the fan connected to DC motor when the temperature (measured through a temperature sensor) is greater than a threshold value. This can be used in home applications particularly in CPU to reduce heat by automatically switching ON the fan. •: This stress monitor lets you assess your emotional pain. It can indicate three levels of stress: Relaxed, Moderate and High levels with the help of a series of LEDs (combination of green, yellow and red). If the stress is very high, it gives visual indication through the LED display along with a warning beep.

The gadget is small enough to be worn around the wrist. •: Photoelectric detectors are usually unidirectional i.e. They are able to detect when someone enters a particular area but not when leaves it. On the contrary, a system able to detect movement in both directions could be useful to control shops, rooms etc.

If installed in a shop it could allow knowing if all customers entering the premises have left them at the end of the day. Or, at home, it could be used to switch on the light (or any other electric device) when one enters the room and to switch off the electric device when he or she leaves it. Additionally it can be used to control the number of people as this circuit switches off the electrical device only after the last person leaves the area. •: This circuit runs a fast battery test without the need of power supply or expensive moving-coil voltmeters.

It features two ranges depending on the position of the switch. In one position, the device can test 3V to 15V batteries and when the position of the switch is changed, only 1.5V batteries can be tested. A set of LEDs are used to indicate the charge of the battery (i.e. Full, weak or empty). •: Here is a low-cost circuit of an FM booster that can be used to listen to programs from distant FM stations clearly. The circuit comprises a common-emitter tuned RF preamplifier wired around VHF/UHF transistor 2SC2570. It boosts the FM reception by amplifying the weak FM signals.

•: This very simple and self-powered device was conceived to allow a person to monitor if someone has rung his home door-bell when he was out. The circuit must be simply connected to the two door-bell-coil leads. An LED or a buzzer (or both) can be used to indicate the event (event is door-bell being pressed). It can store the event for a minimum of 15 days.

It can be used for any mains supplied device like computer, television etc. •: This fridge door alarm is a light sensing circuit. It should be placed in the fridge (enclosed in a small box) near the lamp or close to the opening. When the door is opened, the light from the lamp or outside will fall on it and the buzzer goes off for a certain time and stops.

This process repeats until the door is closed. How Many Vertcoin VTC Can I Mine With My Computer. This circuit is useful when the fridge door is not closed or it is kept open for a long time. •: The use of wind power is increasing in today’s World where the usage of non-renewable fossil fuels is at its peaks.

There are many systems that convert wind energy to electrical energy. A direct driven permanent magnet generator has been designed specifically for vertical axis wind turbine. The generator maintains high efficiency and has high torque capability for the entire operational regime. •: This circuit is primarily used to detect draughts around doors and windows which cause energy leaks.

This circuit is essentially a temperature sensor and can be used where sensitive temperature detection is needed. It makes use of a comparator and detects the slight changes in temperature by comparing it to room temperature (ambient temperature). A couple of LED’s (RED and GREEN) are used to indicate the change in temperature whether it is above or below the room temperature. •: This circuit is a level sensor or proximity sensor. It can be used to detect the level of a liquid in a tank without any contact.

It operates by detecting the distance from the target by reflection of an infrared beam. The range of the device can be set from a few cm. To about 50 cm. By means of a trimmer. The range of the device is dependent on the infrared transmitting and receiving LED’s used and is mostly affected by the color of the reflecting surface. Surfaces with black color greatly lower the device’s sensitivity. •: This circuit is a level sensor or proximity sensor.

It can be used to detect the level of a liquid in a tank without any contact. It operates by detecting the distance from the target by reflection of an infrared beam. The range of the device can be set from a few cm. To about 50 cm. By means of a trimmer.

The range of the device is dependent on the infrared transmitting and receiving LED’s used and is mostly affected by the color of the reflecting surface. Surfaces with black color greatly lower the device’s sensitivity. •: Portable systems are generally battery operated. In order to operate the device for a longer duration, the energy from the battery must be efficiently used. An alternative, that can act as a supplement or a replacement to batteries is harvesting energy from environment. The efficient use of harvested energy is described.

•: The room noise detector circuit can detect the intensity of noise in a room and signal through a series of flashing LED’s. Three threshold noise levels like 50dB, 70dB and 85dB are fixed. If the noise in the room exceeds a particular threshold, it is indicated with the help of LED’s. A miniature electret microphone is used to detect the noise. Note: Also Read the important post – For latest updates on electronics project ideas and free circuit diagrams, visit regularly.