RICHARD V WILLIAMS
Accountancy in Fremont, CA
License number
Massachusetts 14653
Issued Date
Nov 8, 1991
Expiration Date
Jun 30, 2011
Type
Certified Public Accountant
Address
Address
Fremont, CA 94539
Professional information
Richard D Williams, Fremont CA - MA (Medicare Advantage)
Specialties:
Marriage & Family Therapy
Address:
39843 Paseo Padre Pkwy STE D, Fremont 94538
(510) 793-2580 (Phone), (510) 751-0107 (Fax)
(510) 793-2580 (Phone), (510) 751-0107 (Fax)
Languages:
English
Dual-Polarity Multi-Output Dc/Dc Converters And Voltage Regulators
US Patent:
2009003, Feb 12, 2009
Filed:
Aug 8, 2007
Appl. No.:
11/835809
Inventors:
Richard K. Williams - Fremont CA, US
Assignee:
ADVANCED ANALOGIC TECHNOLOGIES, INC. - Sunnyvale CA
International Classification:
G05F 1/44, H01H 19/00
US Classification:
307113, 323271
Abstract:
A two-output dual polarity inductive boost converter includes an inductor, a first output node, a second output node, and a switching network, the switching network configured to provide the following modes of circuit operation: 1) a first mode where the positive electrode of the inductor is connected to an input voltage and the negative electrode of the inductor is connected to ground; 2) a second mode where the positive electrode of the inductor is connected to the first output node and the negative electrode of the inductor is connected to the second output node; and 3) a third mode where the positive electrode of the inductor is connected to the input voltage and the negative electrode of the inductor is connected to the second output node.