DR. ROBERT SCOTT CRANDALL, MD
Medical Practice at Hitchcock Way, Manchester, NH
License number
New Hampshire 8073
Category
Medical Practice
Type
Obstetrics & Gynecology
Address
Address
100 Hitchcock Way, Manchester, NH 03104
Phone
(603) 695-2500
(603) 695-2919 (Fax)
(603) 695-2919 (Fax)
Professional information
Dr. Robert S Crandall, Manchester NH - MD (Doctor of Medicine)
Specialties:
Obstetrics & Gynecology
Address:
Dartmouth-Hitchcock Clinic
100 Hitchcock Way, Manchester 03104
(603) 695-2500 (Phone)
100 Hitchcock Way, Manchester 03104
(603) 695-2500 (Phone)
Certifications:
Obstetrics & Gynecology, 2003
Awards:
Healthgrades Honor Roll
Languages:
English
Hospitals:
Dartmouth-Hitchcock Clinic
100 Hitchcock Way, Manchester 03104
Dartmouth - Hitchcock Medical Center
1 Medical Center Dr, Lebanon 03756
100 Hitchcock Way, Manchester 03104
Dartmouth - Hitchcock Medical Center
1 Medical Center Dr, Lebanon 03756
Education:
Medical School
State University of New York At Buffalo
Graduated: 1982
U Buffalo Affil Hosps
State University of New York At Buffalo
Graduated: 1982
U Buffalo Affil Hosps
Robert Scott Crandall, Manchester NH
Specialties:
OB-GYN
Address:
100 Hitchcock Way, Manchester, NH 03104
Education:
State University of New York, School of Medicine and Biomedical Sciences (Buffalo) - Doctor of Medicine
Board certifications:
American Board of Obstetrics and Gynecology Certification in Obstetrics & Gynecology
High Frequency Electronic Ballast With Sine Wave Oscillator
US Patent:
7388334, Jun 17, 2008
Filed:
Apr 2, 2004
Appl. No.:
10/817768
Inventors:
Earl F. Crandall - Raleigh NC, US
Robert G. Crandall - Manchester NH, US
Robert G. Crandall - Manchester NH, US
Assignee:
PureSpectrum, Inc. - Savannah GA
International Classification:
G05F 1/00, H05B 41/36
US Classification:
315194, 315224, 315220
Abstract:
A high frequency sinusoidal wave is generated and applied directly to a gas discharge lamp in multiple phases in a power efficient electronic ballast. Uniting a high frequency current fed oscillator with a transformer, where direct current may be applied to the center tap of the transformer primary winding through an appropriately sized inductor to enable the impression of a sinusoidal alternating current at the secondary winding. This sinusoidal alternating current is applied directly to a gas discharge lamp. Feedback from the transformer controls the switching of the oscillator at resonant frequency.