To reach a maximum mechanical stability, many Sonitron piezo components are now available even with a foam tape. Sonitron piezo components feature a high reliability, resistance to harsh conditions and also to vibrations. Despite these features, usually one of the weakest points (as for the vibration-resistance) is the joint of leads with a PCB. That´s […]
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Understanding the CD: Material As discussed in How Analog and Digital Recording Works, a CD can store up to 74 minutes of music, so the total amount of digital data that must be stored on a CD is: 44,100 samples/channel/second x 2 bytes/sample x 2 channels x 74 minutes x 60 seconds/minute = 783,216,000 bytes
This time, simple project that i made from simple need. Simple, cheap and functional regulated power supply 1,25V to 15V, two separately regulated positive lines and two negative. This power supply uses LM317 and LM337 integrated circuit stabilizers – or their stronger versions. Galvanically separated lines can be connected in various configurations. There is no
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In consumer optical products — most commonly cameras — aperture describes the size of the hole that lets light into a device. Cameras use mechanical diaphragms to control how much light passes into the camera body and strikes the image sensor or film. That diaphragm works a lot like the irises in your eyes; it
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I have been looking for a good stereo amplifier circuit diagram for a long time. I am not a HiFi geek, I just wanted to build a simple stereo amplifier that could drive some speakers for my desktop computer. All the schematic diagrams that I could find seemed to involve lots of hard-to-find components or
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As with non-WiFi cameras, your choice of camera will be dependent on how you plan to use it. WiFi-enabled point-and-shoot cameras retail for a little bit more than their plug-and-play counterparts, from about $200 on up. As of early 2010, no WiFi SLR cameras were available; however, by using a WiFi-enabled SD card called an
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Traditionally, switching DC/DC converters (voltage regulators) were controlled using analog techniques because these were simple to implement and helped to maximize the power supply’s efficiency. Digital components were too slow and power greedy to challenge analog dominance. However, over the past several years the introduction of high-speed, low power consumption and inexpensive silicon has rekindled
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If you’ve looked at television sets at any of the big electronics retailers in the United States lately, you know that digital TV, or DTV, is a big deal right now. Most stores have whole areas devoted to digital TV sets. You’re also hearing a lot about four other topics: HDTV and HDTV broadcasts Digital
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Introduction This RFID reader works with 125 kHz tags in credit card size shape cards and with 125 kHz key fobs (picture 1). The EM4100 protocol is used. When you approach an RFID Tag close enough (4-5 cm) to the reader’s coil (L1) the reader will read the 10-digit unique ID of the Tag and transmit it
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The first mobile Facebook users were only able to update their status using text messages. As smart phones got smarter, they were able to access Facebook’s mobile site, m.facebook.com, in their browsers. Then came the iPhone, the Android, and other advanced phone operating systems, which had app markets where users could download small programs made
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