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Surge Suppression Incorporated Newsletter |
Sinewave Tracking
It's a Matter of Time, But Inverted
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The title of this article provides a few clues regarding the "mystery" of sinewave tracking. This black magic is really quite simple. You see, time inverted is frequency (for you electronic buffs f=1/t or t=1/f, if you recall) - so frequency is a matter of time, but inverted. Therefore, one might deduce that sinewave tracking has something to do with frequency. When, in fact, it has everything to do with frequency.
In contrast to the standard clamping portion (shown in the first figure below) of the suppression circuitry - which simply responds to an overvoltage or change in voltage - sinewave tracking responds to a change in frequency. This is shown in the second figure below. Since the sinewave tracking circuitry responds to a change in frequency, it will react regardless of the location of the surge in relation to the sinewave. This is why sinewave tracking is so effective in mitigating surges that occur at phase angles near and greater than 180 degrees and less than 360 degrees - but the same action occurs at all phase angles or locations on the sinewave.
From the fixed clamping graph, notice that the threshold clamping circuitry does not respond until the voltage reaches the "positive (or negative) fixed or preset voltage level". This is in contrast to the graph that shows sinewave tracking. Notice the sinewave tracking circuitry does not have a preset voltage level - it simply reacts to the change in frequency or the frequency component of the surge at any phase angle on the sinewave.
OK - are you confused yet? Hopefully not - but if you are, pretend that you are a gold miner and sinewave tracking is the screen that you use to separate the gold from the sand. Think of the sand as the sinewave and the gold as the surges. (Hint: You are trying to capture the gold!) The screen (sinewave tracking) allows the sand (sinewave) to pass through while capturing (mitigating) the valuable gold (surges). Think of the size of an object - sand or gold - as being the frequency (or change in frequency) - the larger the object the higher the frequency. The screen (sinewave tracking) prevents the larger objects (surges) from passing through.
If you capture the surges - you will also capture the gold!
Figure 1
Figure 2
For more information or assistance with custom surge protection, please, contact your local Surge Suppression Incorporated representative or contact us at 888-987-8877.
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| About Us |
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Surge Suppression Incorporated and our affiliated companies are manufacturers and suppliers of multiple lines of quality Transient Voltage Surge Suppression (TVSS) devices for AC and DC power, data, and telecommunications with voltages from .5V to 7200V. We started business in 1982 as an independent distributor of TVSS devices. Over the years, we have provided both quality TVSS devices and quality service to our customers. Due to the original TVSS manufacturer's sale to a foreign corporation, we decided to found Surge Suppression Incorporated. Starting with a core group of experienced and dedicated TVSS industry professionals, our stated purpose was the manufacture of TVSS devices which would not only exceed the standards of the products we sold before, but set a new standard for quality, performance and design ingenuity. Hard work, dedication and the continuing addition of experienced TVSS professionals and resources have all contributed to our rapid growth and industry leadership position.
Surge Suppression Incorporated has extensive application experience across a full range of industrial, commercial and Department of Defense sectors. We value each customer and are committed to providing only the highest level of service and product quality. This commitment can be seen in the success we have achieved with the most demanding and discriminating of customers. After extensive research and testing, an affiliated company was awarded a 2.8 million dollar contract with the U.S. Navy in 2001 to provide TVSS devices for shipboard applications. We have also provided TVSS devices for a number of U.S. Navy, U.S. Marines, U.S. Army and U.S. Air Force installations throughout the United States and overseas. We are very proud to be an active participant in these vital efforts.
Surge Suppression Incorporated has grown and expanded throughout the U.S. and international markets. We currently have sales offices located across the U.S. and in various locations in Europe, Asia, Central America, South America and the Middle East. During this period of rapid growth, we have maintained our commitment to customer service, technical support and responsiveness. |
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Surge Suppression Incorporated will match or beat any price for comparable surge suppression products.
For more information or assistance, please contact your local Surge Suppression Incorporated representative or contact us at 888-987-8877
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