Consumers of mobile wireless devices expect a workable, real-world balance of performance and battery life. This is particularly applicable in third-generation (3G) wireless designs, due to the fact that these devices will house more powerful and feature rich multimedia capabilities. With processor performance (Moore`s law) doubling every 18 month
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s and communications system performance (Shannon`s Law) doubling every 8. 5 months, battery energy density has not kept up —it doubles every ten years. This highlights a significant technology gap. To bridge this supply/demand power gap, system engineers need to implement an arsenal of technologies ranging from process, software, and circuit innovations to meet the power requirements of 3G phones. Let`s look at some of the tools in this arsenal in more detail. To meet the demands of 3G mobiles, many OEMs are looking at a dual- or triple-processor architecture to handle baseband processing tasks. However, when examining architectures, a single chip, which combines cores for baseband and application processing, has obvious advantages over multi-processor designs. Having separate and independent processing resources requires a sophisticated inter-processor communication network to perform data exchange and control. The complexity of this approach increases with each processor added to a baseband design. Thus, inter-processor communication can become a formidable design challenge to software and hardware designers. The complexity of inter-processor communication networking overhead reduces the processing performance available for end-user applications and increases power consumption, which results in reduced battery life and usage time for the end user. In addition, monitoring for the presence of wireless networks requires...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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