Timer

• 555 timer as a switch-mode power supply

  2007-12-27 11:42:58

  Most switch-mode power supplies rely on a PWM (pulse-width-modulated) output that is controlled via voltage feedback. A 555-timer IC can inexpensively perform PWM. The circuit in Figure 1 shows how to turn a 555 PWM circuit into an switch-mode power supply with only one simple equation. The design uses two 555s. IC1, in astable mode, [...]
• �ShutDowner� Computer Shutdown Timer (or prank) ;-)

  2007-12-25 17:12:41

  A few of my friends asked me for some computer pranks which are harmless and can award a good laughter to the pranksters. A few came across my mind such as nuke attacks or excessive packet distribution but that, at some extent can cause harm to the computer. So after some serious thinking, I thought [...]
• “ShutDowner” Computer Shutdown Timer (or prank) ;-)

  2007-12-25 17:12:41

  A few of my friends asked me for some computer pranks which are harmless and can award a good laughter to the pranksters. A few came across my mind such as nuke attacks or excessive packet distribution but that, at some extent can cause harm to the computer. So after some serious thinking, I thought [...]
• SOLID STATE TESLA COIL WITH 555 TIMER

  2007-12-23 16:43:22

  Setting the operating frequency with an integrated timer is easy and practical. Following schematic is nothing more than the standard astable mode circuit design with a classic 555. It requires only two resistors and a capacitor to set frequency (with duty cycle of course) and another resistor to determine power transistor’s base current, which you [...]
• Timer for Fully-Automatic Star-Delta Oil / Airbrake Starters

  2007-12-03 18:28:17

  we are using fullyautomatic oilimersed stardelta starters and air break starters in that we are using the conventional method of timers to change from star to delta. is there is any other timer avail able than the numatic timers or any other method canbe adopted without using the timer to change fro
• A Simple PWM Circuit Based on the 555 Timer

  2007-11-15 03:14:06

  One of the most fundamental problems in robotics is DC motor speed control. The most common method of speed control is PWM or pulse width modulation. Pulse width modulation is the process of switching the power to a device on and off at a given frequency, with varying on and off times. These on and [...]
• Nagative voltage generation using 555 timer

  2007-09-21 19:11:31

  This is Circuit� build Nagative voltage generation Form IC� 555 timer ,It is Hot IC and Easy to Use. 555, Nagative voltage, UncategorizedShare This
• The Part Timer

  2007-09-07 03:37:30

  My fingers were aching! I wanted to get my work done and get the hell out of there so bad that I had been sitting behind that goddamn terminal for six hours straight without taking even a break. I had to stop for a couple of minutes or I knew that my fingers would fall off. I got up and walked to the outer office. I sat behind the bosses' desk, put my feet up and picked up an ancient copy of TIME magazine and started to read it. Soon my thoughts wandered. I looked around the dingy old office and thought to myself what a rat-hole it was.It wasn't the worst job in the world, but certainly not the best. I had taken the job as word processor in order to have some money for drinks when I went out to the Charlie's and the other local bars. I was planning to keep the job until I graduated college and could get a real job, sometimes I hated it so much that I wanted to walk out right then, but I never did. When I first started there, I would go to work every night after school. I would usual
• Bomb Timer (USS Midway Museum)!!

  2007-07-13 21:32:00
• Online Countdown Timer

  2007-07-11 05:56:54

  Are you looking to create urgency while pre-launching your products or setting a dateline? Then you gotta have this cool Javascript. Share This
• Pop Up Timer for Turkey and Chicken

  2007-06-18 12:14:00

  Product Number: 170Where can I buy one: Kitchen Monger In the first of today�s timer updates comes the Pop Up Timer for Turkey and Chicken which is designed to �take the guesswork out of cooking the perfect poultry�. What�s great about these devices is that they�re ace for anyone that doesn�t see themselves as a perfect chef yet wants to learn the ropes without having to constantly bug someone by asking �Is it done yet� every five minutes.Cooking poultry is an especially unnerving process for the uninitiated so it�s nice to see a device that at least makes things a little simpler. Once the chicken is cooked to perfection a little pin sticks out of the top of the device to let you know when to remove this. Sadly there�s no marker or line so there�s still some guesswork involved in guessing when it�s actually done and it�s really no replacement for good old fashioned intuition once you�ve cooked a few chickens. As a handy trainer it has potential but instead o
• Egg Boiling Timer

  2007-06-18 12:00:00

  Product Number: 169How much: �4.99 RRPWhere can I buy one: Trade: Kingstown Products.co.uk or contact Jody Allen at jallan@kingstown.uk.com.Non Trade: Call Housewares Direct on 08701 208 301Another traditional product which you may have seen a thousand times before, so what�s the twist this time? Well this egg timer actually goes in to the water with the eggs and as the water boils it tells you exactly when your egg is hard, medium, or soft. The way this works is thanks to a white circle which fills up on the outside of the timer, and works its way inward as your egg cooks. As it goes inward it passes a series of lines and informs you of your eggs progress.It works too and I tried it on both a soft and hard boiled egg with spot on results. The only real niggle is that you�ll need to check where the lines are on the timer before you pop it in the water, as once it starts to bubble actually reading the text becomes difficult. Of course you can always simply move the pan from the hob
• Custom setInterval replacement class - Timer from Misuta Hagane Util package

  0000-00-00 00:00:00

  need for replacemenr of setInterval in AS2.0 is obvious, it happened to me and to other people many times that clearInterval just won't work... it's basiclly in only 1% of cases but it's enough so to help me and my friends I've created Timer class which fits into Misuta Hagane Utils ...