Abstract: One embodiment of the present invention provides a device for providing a low noise power supply package to an IC in the mid-frequency range of 1 MHz to 3 GHz including installing in said package an array of embedded discrete ceramic capacitors, and optionally planar capacitor layers. A further embodiment provides a device for providing a low noise power supply package to an IC in the mid-frequency range of 1 MHz to 3 GHz including an array of embedded discrete ceramic capacitors with different resonance frequencies, arranged in such a way that the capacitor array's impedance vs frequency curve in the critical mid-frequency range yields impedance values at or below a targeted impedance value.
Type:
Grant
Filed:
August 31, 2006
Date of Patent:
March 17, 2009
Assignee:
E. I. Du Pont De Nemours
Inventors:
Madhavan Swaminathan, Ege Engin, Lixi Wan, Prathap Muthana
Abstract: A novel electrostatic precipitator includes an electrostatic collector section with discharge electrodes positioned between pairs of grounded collector electrodes, a gas entry port located upstream of said electrostatic collector section, and a transition section between the gas entry port and said electrostatic collector section into which an aqueous acid gas neutralizing agent is sprayed into a gas stream. An additional collector section may be interposed between the gas entry port and the point where the acid gas neutralizing agent is injected into the gas stream. The collector section may comprise alternating charging and short collection sections in which the grounded electrodes of adjoining charger and collector sections are connected. A liquid spray removes particulates collected on the grounded electrodes of the collector sections.
Type:
Grant
Filed:
December 6, 1994
Date of Patent:
February 11, 1997
Assignee:
The United States of America as represented by the Administrator of the U.S. Environmental Protection Agency
Inventors:
Norman Plaks, Charles B. Sedman, Leslie E. Sparks