Career records & work history
Medicine Doctors
David Murakami, Seattle WA
Specialties:
Psychotherapist
Address:
6908 30Th Ave S, Seattle, WA 98108
David W Murakami, 38Seattle, WA
David Murakami Phones & Addresses
Newcastle, WA
Bellevue, WA
Mercer Island, WA
Work
Address:
6908 30Th Ave S, Seattle, WA 98108
Specialities:
Psychotherapist
Mentions for David W Murakami
David Murakami resumes & CV records
Resumes
David Murakami
Location:
Lake Stevens, WA
Industry:
Education Management
Work:
U of Hawaii
Retired
Retired
David Murakami
David Murakami
Location:
United States
Publications & IP owners
Us Patents
Switching Power Supply Having A Wide Range Input Capability
US Patent:
4195335, Mar 25, 1980
Filed:
Jul 20, 1978
Appl. No.:
5/926455
Inventors:
David Murakami - Federal Way WA
Donald J. Sommer - Seattle WA
Donald J. Sommer - Seattle WA
Assignee:
The Boeing Company - Seattle WA
International Classification:
H02P 1316
US Classification:
363 49
Abstract:
A switching regulator type power supply, including a series switching element which, when energized, provides a voltage signal to an averaging filter, the output of which is applied to follow-on inverter and filtering circuits to produce a desired output voltage. In the startup mode of the supply, the switching element is energized by a circuit portion functioning as a blocking oscillator. The control action of the blocking oscillator results in a series of incremental increases in the voltage output of the averaging filter, thus avoiding large startup currents. When the output of the averaging filter reaches a predetermined first level, an error amplifier circuit is initiated, which forces the circuit portion to function as a constant current switched amplifier. The switching regulation of the error amplifier also results in a series of incremental increases in the output of the averaging filter, until a steady-state output is reached, at which point the switching element is controlled by normal regulation action.
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