Control Engineering June 2014-CE : Page-88

ADVER TISEMENT Going Green with Free Energy Digital meters have no moving parts, making them durable and reliable. Some units can communicate with supervisory computers or control the processes they measure. Unfortunately, they require external power and do not conform to pre-existing installa-tions, requiring a more complicated installation. The typical cost to a power plant interested in converting is estimated to be over $20,000,000.00! We thought there had to be a better way. For our company, the better way is harnessing and using the energy wasted in most electrical processes. We began by designing a highly linear miniature current transformer which uses the extra energy from the input signal to power the electronics. Our automatic tri-color bargraph uses ultra-efficient LEDs which require ~1/100 the energy of a standard LED, and we even include color set-points and alarms. The green design incorporates parasitic ASIC that uses ~1% of the energy of a regular microcontroller, and features our custom symbiotic software which shares the 10-100mW of reclaimed power. Our meters can also detect when the signal has gone dead and enable alarms by using the stored excess energy. New Technology meters not only consume ~1% of the energy of comparable meters, they reclaim and use wasted energy. Capturing wasted energy is a smart way to go green! We once believed that we had nearly infinite amounts of natural resources and unlimited technology that we could use to create anything. Now we know that we have limited natural resources, and some technologies that were once cutting-edge were discovered to be quite harmful to ourselves and our environment. One example of our company taking innovative steps to go green can be seen when we re-considered the powering of the digital bar meter. Analog meters are the most energy conservative meters, since they are signal powered. However, they are susceptible to wear, tear, shock and vibra-tion. They are cheap and easy to connect, yet they are also inaccurate and unreliable. Their digital counterparts make up for most analog deficiencies. Tel: 520-748-7900 | input #56 at

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