Many electronic applications require multiple regulated supply voltages to cater for needs from the different function modules inside. A new single-inductor multiple-output (SIMO) switching converter is designed to operate in pseudo-continuous conduction mode (PCCM) with free wheel switching, and ca.....
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With the development of ball grid array (BGA), the strength of BGA becomes important. High speed single solder ball test is one effective method to test BGA strength. This design provides one machine to test single sold ball strength at high speed. The advantage of this design is multi-solder balls .....
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A new liquid crystal display (LCD) which eliminates the need for a conventional output polarizer is discovered. The display comprises only a liquid crystal (LC) cell, a single input polarizer, a reflector placed behind the cell, and a retardation film placed between the reflector and the cell. A Jo.....
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Battery-operated portable equipment requires battery power management system for switching between battery and external power source. While prior implementation requires separate power converters and power multiplexers such system, this invention provides a DC-DC converter that allows multiple power.....
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This invention provides for a method and process for simultaneously producing two highly pure fullerenes from mixed fullerenes that mainly contains the two components, wherein the solid-liquid phase equilibrium behavior of certain process streams are manipulated such that pure fullerenes, solid solu.....
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