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Article: Digital products still require an extensive amount of analog circuitry to interface to an analog world. Analog integrated circuits (ICs) drive LEDs (and other displays), convert dc voltage levels for the system loads, amplify signals, filter noise, control motors, and convert power from ac to dc. Here are five products with enabling analog circuitry.(NEW AND NOTABLE PRODUCT DESIGN)
- Article from:
- Design News
- Article date:
- March 7, 2005
- Author:
CopyrightCOPYRIGHT 2005 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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1 RECHARGEABLE LED FLASHLIGHT
Angus Noble Indium Torch. Innovative designer Angus Noble used Lithium-ion battery technology with the latest high intensity LEDs to produce a small, powerful, and rechargeable light source. To eliminate any moving parts and ensure maximum reliability, a touch sensitive switch controls the light. The touch switch's analog circuitry selects between different ways of driving the MOSFET that provides power to the LEDs. Either the LEDs are off, on for full power, driven by a simple high-frequency oscillator for half power, or driven by a low-frequency oscillator for flashing mode. The Indium can be recharged from a computer USB port. For ...
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Article: Ignoring real-world data invalidates simulations. (analog ...
EDN;
October 1, 1992 ;
700+ words
...As powerful PCs and workstations proliferate, more and more engineers are taking advantage of all this computing power to simulate their analog circuits before prototyping them. Indeed, many companies require a simulation prior to signing a design off. Before simulating a circuit, engineers must
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