RICHARD D. WILLIAMS, M.A.
Marriage and Family Therapists at Paseo Padre Pkwy, Fremont, CA

License number
California MFT 22545
Category
Marriage and Family Therapists
Type
Marriage & Family Therapist
Address
Address
39843 Paseo Padre Pkwy SUITE D, Fremont, CA 94538
Phone
(510) 793-2580
(510) 751-0107 (Fax)

Professional information

Richard D Williams Photo 1

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)
Languages:
English


Richard Williams Photo 2

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.