Showing posts with label home. Show all posts
Showing posts with label home. Show all posts
Tuesday, June 4, 2013
Wiring Diagram Electrical Components Symbols House Home
Electrical Wiring In The Home Wires Are Not Hot In Electrical Outlet.
Home Electrical Wiring Trainers Kelvin Com.
Twelve Common Wiring Problems By Rex Cauldwell.
Electrical Wiring In The Home Wiring Nightmare Switch Phila.
All About Wiring Diagrams.
Wiring Diagram And Electrical Components Symbols For House Or Home.
Home Electrical Wiring Diagrams.
Home Electrical Wiring Colors Ehow Com.
Electrical Wiring In The Home Faulty Circuit Amp Breaker Faulty.
How To Know If You Have Electrical Wiring Problems In Your Home.
Thursday, May 30, 2013
Telecom Tipswiring Home Voip Servicereilly Emerging
Telephone Wiring Full Screenshot Telephone Wiring Demo.
Telecom Tips Wiring Your Home For Voip Service O Reilly Emerging.
Rj 11 4 Pair Phone Wiring Color Codes And Diagram Circuit Schematic.
Rj11 Wiring.
Uk Telephone Wiring.
Cat 5 Wiring.
Build An X 10 Status Display The Statx10.
Rj 11 Definition Of Rj 11 In The Free Online Encyclopedia.
Rj14 And Rj11 Pinouts.
Cable Modem With Either Airport Extreme Or Time Capsule Macrumors.
Friday, April 12, 2013
Home theater design may require professional help
Having to be able to bring home entertainment may be a luxury. This is because only very few households can afford home theater system. Of late, only the rich and the famous can afford such luxury. This notion is now a thing of the past. Home theater systems may now be available to greater number of households because of the knowledge of basic home theater design. The basic home theater design may only require three basic components and these three components may already be affordable for the working class.
However, before you may need to think of the basic home theater design for your home theater system, you may need to know the size of the room for the home theater set up. The size of the room to where the home theater will be set up will depend on how basic the home theater design needs to be.Home theater experts recommends that if the room is quite small, all you need for your home theater design is a television set, three speakers and a DVD player. The home theater design may be dependent of the shpre of the room; however, the position of the speakers remains to be the left, the right and the center of the room. Basic home theater design may require a television set bigger than 27 inches. Too small screen for your home theater design may not be sufficient for a movie theater-like experience.
This is because even for the home theater design, you may need to consider the sight and sound of a movie theater. It is the main consideration why people go to a movie theater, the big screen and the surround sound. With respect to the surround sound of a movie theater, the basic three speakers is only applicable for smaller rooms, if the room is bigger, the home theater design needs to be more than three, you may go up to six speakers and a complimenting subwoofer may be necessary for the surround effect. Going back to a small room, if you will only put three speakers, you may want to consider buying a high quality brand speaker; this will give you enough surround sound for a smaller room.
If you have a small budget, ensure that the store where you will buy your speakers will allow you to test the product in your room and if it will not give you a good surround sound, they should allow you to return or replace the unit. This is because some speakers sound good in the store but when you finally set them up in a small room, the effect is not very good. Find a neat deal where they can allow you to return or replace the speakers. However, if your budget is sufficient, you may consider hiring the services of a home theater designer.
Your home theater designer will be able to design the home theater better and with complete accessories. He may require checking the power rating, and the need for amplifiers. He may also recommend using home theater projectors and he may recommend how the speakers need to be. You will get a good home theater design if you will be able to hire home theater designers. The need for home theater seating and television cabinet may also be necessary for the complete package of your home theater.
You may enjoy the entertainment without having to tide traffic jam and enjoy in your own home theater system.
Friday, April 5, 2013
How to Build a Solar Panel Voltage Regulator Charger Circuit Charger Circuit at Home
How to Build a Solar Panel Voltage Regulator, Charger Circuit, Charger Circuit at Home
We all know pretty well about solar panels and their functions. The basic functions of these amazing devices is to convert solar energy or sun light into electricity.
Basically a solar panel is made up discrete sections of individual photo voltaic cells. Each of these cells are able to generate a tiny magnitude of electrical power, normally around 1.5 to 3 volts.
Many of these cells over the panel are wired in series so that the total effective voltage generated by the entire unit mounts up to an usable 12 volts or 24 volts outputs.
The current generated by the unit is directly proportional to the level of the sun light incident over the surface of the panel.
The power generated from a solar panel is normally used for charging a lead acid battery. The lead acid battery when fully charged is used with an inverter for acquiring the required AC mains voltage for powering the house electrical.
Ideally the sun rays should be incident over the surface of the panel for it to function optimally. However since the sun is never still, the panel needs to track or follow the suns path constantly so that it generates electricity at an efficient rate.
If you are interested to build an automatic dual tracker solar panel system you may refer one of my earlier articles. Without a solar tracker, the solar panel will be able to do the conversions only at around 30 % efficiency.
Coming back to our actual discussions about solar panels, this device may be considered the heart of the system as far converting solar energy into electricity is concerned, however the electricity generated requires a lot of dimensioning to be done before it can be used effectively in the preceding grid tie system.
The voltage acquired from a solar panel is never stable and varies drastically according to the position of the sun and intensity of the sun rays and of course on the degree of incidence over the solar panel.
This voltage if fed to the battery for charging can cause harm and unnecessary heating of the battery and the associated electronics; therefore can be dangerous to the whole system.
In order to regulate the voltage from the solar panel normally a voltage regulator circuit is used in between the solar panel output and the battery input. This circuit makes sure that the voltage from the solar panel never exceeds the safe value required by the battery for charging.
Normally to get optimum results from the solar panel, the minimum voltage output from the panel should be higher than the required battery charging voltage, meaning even during adverse conditions when the sun rays are not sharp or optimum, the solar panel still should be able to generate a voltage more than say 12 volts which may be the battery voltage under charge.
Solar Voltage regulators available in the market can be too costly and not so reliable; however making one such regulator at home using ordinary electronic components can be not only fun but also very economical.
Referring to the figure we see a circuit design that utilizes very ordinary components and yet fulfills the needs just as required by our specs.
A single IC LM 338 becomes the heart of the entire configuration and becomes responsibly for implementing the desired voltage regulations single handedly.
The shown solar panel regulator, charger circuit is framed as per the standard mode of the IC 338 configuration.
The input is given to the shown input points of the IC and the output for the battery received at the output of the IC. The pot or the preset is used to accurately set the voltage level that may be considered as the safe value for the battery.
The circuit also offers a current control feature, which makes sure that the battery always receives a fixed predetermined charging current rate and is never over driven.
The module can be wired as directed in the diagram. The relevant positions indicated can be simply wired even by a layman. Rest of the function is taken care of by the regulator circuit.
The switch S1 should be toggled to inverter mode once the battery gets fully charged (as indicated over the meter).
The charging current may be selected by appropriately selecting the value of the resistors R3. It can be done by solving the formula:
0.6/R3 = 1/10 battery AH
The preset VR1 is adjusted for getting the required charging voltage from the regulator.
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