circuit diagram of over under voltage protectn of electrical applicatins using lm324 ....etc

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to get information about the topic over under voltage protector lm324 full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-over-under-voltage-protection-of-electrical-appliances

http://seminarsprojects.net/Thread-over-under-line-voltage-protection-for-electrical-appliances ....etc

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PROTECTION FOR YOUR ELECTRICAL APPLIANCES



Here is a very low-cost circuit to
save your electrically operated
appliances, such as TV, tape
recorder, refrigerator, and other
instruments during sudden tripping and
resumption of mains supply. Appliances
like refrigerators and air-conditioners are
more prone to damage due to such
conditions.

The simple circuit given here switches
off the mains supply to the
load as soon as the power
trips. The supply can be
resumed only by man ....etc

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Remote Control of Electrical Appliance using
Wireless Technology GSM

Introduction
Wide growth of wireless communication made me think of
using the mobile phones for controlling the electrical
appliance .This can be done simply by sending an SMS from
the users handset .The system do not require any wired
connections for the automatic control of electrical appliance
it can just be done with the help of a Micro controller
interfaced with the GSM modem .A system being proposed
is economical, robust to use and portable. An individual ....etc

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This circuit protects refrigerators as well as other electrical appliances from over and under voltage. By the name itself we can say that if the input voltage is more or less than the required voltage then the electrical appliance is turned off nothing but it gets disconnected from its respective power supply.
This circuit uses an operational amplifier IC LM324 which is used as a comparator. Generally, the IC LM324 consists of four operational amplifiers, of which only two operational amplifiers are used. In this IC, we ha ....etc

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To get full information or details of water level controller with under over voltage protection please have a look on the pages

http://seminarsprojects.net/Thread-over-under-line-voltage-protection-for-electrical-appliances

http://seminarsprojects.net/Thread-over-under-voltage-protection-of-electrical-appliances

if you again feel trouble on water level controller with under over voltage protection please reply in that page and ask specific fields in water level controller with under over voltage protection ....etc

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ABSTRACT:
This circuit protects refrigerators as well as other electrical appliances from over and under voltage. By the name itself we can say that if the input voltage is more or less than the required voltage then the electrical appliance is turned off nothing but it gets disconnected from its respective power supply.
This circuit uses an operational amplifier IC LM324 which is used as a comparator. Generally, the IC LM324 consists of four operational amplifiers, of which only two operational amplifi ....etc

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Introduction on over/under voltage protection of electrical appliances ....etc

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to get information about the topic over under voltage protection relay full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-over-under-line-voltage-protection-for-electrical-appliances

http://seminarsprojects.net/Thread-over-under-voltage-cut-off-with-on-time-delay-project-report?pid=16282&mode=threaded

http://seminarsprojects.net/Thread-generator-protection-in-bpcl-kochi-full-report?pid=12056&mode=threaded ....etc

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REGULATED POWER SUPPLY
1.1 Types of Power Supply
There are many types of power supply. Most are designed to convert high voltage AC mains electricity to a suitable low voltage supply for electronic circuits and other devices. A power supply can by broken down into a series of blocks, each of which performs a particular function.
For example a 5V regulated supply:
Figure 1.1 block diagram of a regulated power supply
Each of the blocks is described in more detail:
Transformer- steps down high voltage AC mains ....etc

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