LOW INPUT VOLTAGE CONVERSION.
Abstract
During the third quarter, effort was concentrated on investigating the transistor approach to low input voltage conversion. This work was directed toward transistor convertor breadboard construction, checkout, and performance measurements. Converter power transformers were designed to step a 1.5 volt source up to 6.5 or 28 volt output levels. During this quarter, breadboard performance tests have verified the analytical work of the previous two quarters by proving that the transistor approach to low input voltage is promising. High over-all transistor converter efficiencies have been obtained with input voltages between 0.6 volt and 1.5 volts. Conversion efficiencies as high as 82.7% have been obtained with 1.5 volt inputs. Also, high conversion efficiencies ranging between 73.5% and 80.5% have been obtained for input voltages between 0.7 and 1.0 volt respectively at lower output power. The design approach utilizes current feedback drive in the power amplifier stage. Performance data have proven that high efficiency can be obtained for large variations in both load current and input voltage. High efficiencies have been obtained over large input voltage and load variations, because optimum current feedback drive proportional to load current was used in the power amplifier stage. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1963
- Accession Number
- AD0422194
Entities
People
- John T. Lingle
- Sheldon D. Heaner
Organizations
- Honeywell International, Inc.