Microprocessor control of quarter-watt linear cooler. Final report, 5 December 1986-31 July 1987

Technical Report · Fri Aug 07 00:00:00 EDT 1987

OSTI ID:6699884

The purpose of the program was to conduct studies of microcontroller/digital VLSI technologies for possible future use in cryogenic coolers. A necessary condition that any electronic approach must satisfy in order to be considered for linear-cooler electronics is the ability to work in the real-time environment of 100 kHz or higher switching speeds. In the case of the existing analog design, this prerequisite has long been established to achieve practically sized line filters. Heretofore, this speed was out of reach of microprocessor-based, controllers since the state-of-the-art was somewhere in the neighborhood of 8 to 10 kHz. However, a new device on the market has provided the necessary interface hardware to bridge this gap. This advancement combined with the advances of microcontrollers in terms of cost, size, and performance suggested that an investigation of the microcontroller/digital approach for the Magnavox quarter-watt cooler electronics be performed.

• Research Organization: Magnavox Government and Industrial Electronics Co., Mahwah, NJ (USA). Electro-Optical Systems
• OSTI ID: 6699884
• Report Number(s): AD-A-195965/9/XAB; EOSR-1552
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
COOLING SYSTEMS
HEAT EXCHANGERS
COMPUTERIZED CONTROL SYSTEMS
ANALOG SYSTEMS
DIGITAL SYSTEMS
ELECTRIC FILTERS
INTEGRATED CIRCUITS
INTERFACES
MICROPROCESSORS
PROGRESS REPORT
VELOCITY
COMPUTERS
CONTROL SYSTEMS
DOCUMENT TYPES
ELECTRONIC CIRCUITS
ENERGY SYSTEMS
FILTERS
MICROELECTRONIC CIRCUITS
420200* - Engineering- Facilities
Equipment
& Techniques
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)