четверг, 2 декабря 2010 г.

I had a fact about 555cn datasheet

555cn datasheet


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вторник, 30 ноября 2010 г.

My first day and lm2574 datasheet

lm2574 datasheet


The following circuit shows a step-down switching power supply for small loads up to 150 mA and an output voltage of 5 V at 12 V input voltage. For other input voltages and output loads is another coil L2 in the data sheet of the LM2574 to choose L1 in the “Inductor Selection Guide” .
lm2574 datasheet
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My first day and ldr datasheet

ldr datasheet


Special lamps may be purchased to help plants grow indoors. A manufacturer wishes to check these lamps by measuring the out put of the lamp at different wavelengths. You are required to design a laboratory experiment using a light dependant resistor LDR to investigate how the intensity of light emitted by a lamp varies with wavelength.
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What is lcd datasheets

lcd datasheets


Troubleshooting linear power supply was quite easy as compare to switch mode power supplies SMPS . AC voltage enters to the primary side of linear transformer and then converted the AC into a lower or higher AC voltage depending on the secondary winding. The output AC voltage is then rectified and filtered by a diode and capacitors to produce a clean DC voltage. First the AC voltage will flow to a full wave rectifier bridge rectifier which produces an uneven DC output and then filtered by a large capacitor usually 220 micro farad and up to 450 volts . The clean DC voltage will then flows to start up resistors and to the input of switch mode power transformer. Once the voltage passed through the high ohms resistor start up resistors the voltage would drop to a value where it then flows to the VCC supply pin of Pulse width modulation IC. Once the PWM IC received the voltage it will output a signal to drive the transistor or FET and produces a changing in magnetic field in the transformer primary winding. Each of these AC voltage produced by the secondary windings is then rectified, filtered, and regulated to produce a clean DC voltage. One of the main DC output voltage is the B that supply to flyback transformer for TV and Monitor Circuit The output from the B voltage supply is then connected, through a “feedback” loop which consist of optoisolator ic and an error amplifier TL431 IC , back to the PWM IC. When the voltage from the B supply rises or drop a bit, the PWM IC will act to correct the output. Any SMPS that comes across my repair bench, I would not immediately repair it, in fact I will take couples of minutes to analyze the circuit design and see it from all angles before I begin to repair. Troubleshooting SMPS is not limited to only one procedure in fact many electronic repairers have their own unique ways and methods to solve SMPS problems.
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четверг, 25 ноября 2010 г.

Review a christmas day mp3

christmas day mp3


Christmas is an annual holiday celebrated on December 25 that commemorates the birth of Jesus. we call the days around Christmas day holiday season. It is obvious that gifts and decorations do plays a very important role in the holiday, so let us go on with it together and get your home most beautiful one and your Christmas gifts being one of a kind. No.1 USB Dancing & Singing Snowman With the Christmas is stepping nearer and nearer, have prepared the right gift for your kids? Once you connect it to the USB port, it will sing beautiful Christmas songs and dance at the same time! Send it as a wonderful Christmas gift to your friends, family or colleagues, You will bring surprise to them and add more to the coming festival moment. No.2 Fun Santa Holiday Necklace Style Mini MP3 player+1GB What is the better way to show off your holiday spirit than a Santa Claus that pumps out digital music? A great personal MP3 player or as a gift for people who enjoy Christmas collectibles. This MP3 player also makes a good give-away item for company holiday celebrations or Christmas Season store events. No.3 USB Cooling and warming Ice Bucket This is a small lovely USB ice bucket which can not only cool your drinks but also warm them. Whether send it to yourself or others as a good Christmas gift, this is sure to earn more than smile and admiration.
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Whats is christmas day gave love true

christmas day gave love true


The story is about two people from two different worlds and their love. The guy can be Gopu or he liked to be called as Gopu. Gopu was born and southern part if India called as Kerala. Gopu never would have thought of all these things happening around him. He was having lots of friends at school and he loved going to school. Gopu was so naughty as age grows by he heard one of his uncle say that, but someone else also said he is naughty as well as good, he tried to co-ordinate between both of these lines but it is of no use. There were so many festivals happening he loved seeing the fire crackers, the decorations and his favorite elephants standing with all its pride. She always loved flowers where ever at her room. She never took those relationships so serious, since her first love. We will come back to Akku’s pending request for love in a short while. These times Gopu had been a pretty good and pretty naughty boy among his loved friends and family. He wished that he would have been a pilot but he took his majors in literature, hence Gopu decided to and to get into the airliners world. Gopu decided to join some industry the aviation industry. Regarding the love life of Gopu you can call him a lover boy or a lover’s boy. Like those tissues, which naughty girl’s who throw away after each use and boys do love it. That was Gopu’s perception of love people who know him lesser thought. But his close friends knew his denial for love. With a girl with a melanin less brown eyes he used to tell her that in front of his friends .Actually she was his first friend, A girlfriend, A lover and what ever. Gopu was left out wandering in the gazing fields of this beautiful world once again. The time came for Gopu for his next big assignment with his work. They decided to leave her alone for her fate with the guy she loved. Even Gopu got the same training offer from Germany and he decided to join. Gopu was surprised by the age of someone resembling Small 5.2 packaged “gujju” a typical north Indian word for the people from Gujarat .He asked her while helping her out in filling the immigration form at the counter. Or a sort of meeting point for lovers to meet after work. They were with their Gopu and most of the times when free went to each others room and had talks with each other. Gopu liked the girls helping nature to all those who are in fire-alarm. Gopu thought a girl fighter. They friendship was growing out of bounds and Gopu girls so far he has seen. It was not only a small desire of Lust or fondness or love or what ever it grew as a blasphemy for the people she loved. The love and ask her in one day. She soon became a factor of realization of his forgone love for Gopu. on Gopu’s mind while retuning to India, all of his friends celebrated his arrival after training. But thinking of Gopu even she thinks otherwise to settle with him-might be .Gopu took it as a casual talk. Days passed but it was only a matter of ten days and Gopu returned with his friends from a destination called Goa, the coastal party paradise of south India. Gopu was checking some prices at the counters he bought some chocolates. Then Akku joined him they started talking about their vacation stories. Gopu told her about his parties and other happening from Goa, she in turn they enjoyed in Pondichery another coastal town in, Tamil Nadu, IN-was affected by Tsunami .They boarded the aircraft and she took a guy of from the next seat of Gopu to sit with him in the plane. Gopu was wondering why all of a sudden such an action. Gopu continued with his gestures and felt sleepy. The story of their love they did-as lovers do . But confusion aroused on terms seems to be we both loved and we both will.’ Our love was the true one but not a drop of anger o frustration in it’. Akku was of the opinion of staying back marry Gopu. Gopu wanted the stories of Love and lust between them to be told to her boyfriend at the earliest. Some friends of Gopu even relationship like this. They were of the opinion that a girl who had been in love with some one since new millennium, and found a lover / true love after 8 years can never be trust worthy. Someone even avoided Gopu in their parties and discussion .Bu t all these actions created a positive vibe for Gopu and Akku. She never let Gopu down for his words. Gopu’s well wishers and friends and his parents back home Germany. All was in the peak time of the frustration part from their love. decided to gave Gopu a warning and send him back home .She cried for the next two. decision but Gopu knew it was on their life. He thought of the beautiful ‘sixty days’ that he spent with Akku and how suddenly things became a stand still because of his actions. Life became a stand still for Gopu. Akku called Gopu and asked him to be with her after office and the rest of the day. Gopu and Akku went for a coffee and they spend hours sitting there. Gopu and Akku was on the phone talking and talking. Gopu received his sure / rather unsure about his future. All were having a shadow of what happened and what to be believed, but as to anyone, Gopu told to him self. Gopu hugged his friend and said good bye to him at the airport. Gopu took the flight back home to India. Gopu decided the first action of his after the flight will be that. In the flight Gopu didn’t eat anything rather than drinking water. Gopu cried some times as if his tears will go unnoticed, but a gentleman seated beside him asked him about his situation he told, everything is fine as they say in German ‘Alles Good’ Am good . But Gopu had a big black mark on his chest which is deep enough to wound any human being, for eternity. After the flight landed Gopu went out to collect his baggage. Gopu was no more in a hurry for any thing to be happening. Gopu went to his friends place all the while thinking of drafting a mail and the comments for her boyfriend. His friends were broken down seeing Gopu in such a way. They argued with him and commented as bad as they could so as to make Gopu understand of the scenario and trouble. Gopu drafted a letter detailing almost all action to be told and not to be told to her boyfriend. Akku mailed Gopu and asked him not to mail her boyfriend again and told him, ‘let me settle down with the things and let me see my future for a while’. Even after these there were chats mails and calls from Akku and Gopu. Akku told that Gopu should find a job and get settled soon. That communication ended the strands of hope in Gopu. Gopu did things voluntarily. His friends got to know that Gopu was there in the home town. They took Gopu out to the beach side or a smoke. Gopu avoided them as seemed purposely by his fiends. The there was no one more for Gopu requires as ever , his mind into the world beneath. As he looked he was noticing the movements of the people and looking for his Akku or someone taking her along with.
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chat gratis registrazione erotica


Una Chat Gratis e senza registrazione con la quale potrai chattare ore ed ore gratuitamente e conoscere tanti nuovi amici e amiche . Per la conversazione privata con un utente ti basterà cliccarlo due volte con il tasto sinistro del mouse e si aprirà una nuova finestra dove potrai dialogare con lui senza che gli altri chatters possano leggere i tuoi messaggi.
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