Title :
Power remote input output ASIC (PRIO)
Author :
Martin, Mark N. ; Strohbehn, Kim ; Millard, Wesley P. ; Meitzler, Richard C. ; Fraeman, Martin E. ; Jaskulek, Stephen E.
Author_Institution :
Appl. Phys. Lab., Johns Hopkins Univ., Laurel, MD
Abstract :
The ability to monitor a variety of voltages and currents is a basic need for spacecraft and other complex systems. Although this function can be performed with a handful of components (FPGA, ADC, op-amps, etc), it is at the expense of board area, mass and power. The power remote I/O (PRIO) ASIC is a single chip, multi-channel monitoring device. The PRIO has internal buffers with externally programmable attenuation to allow the PRIO to safely monitor voltages in the range of -40 V to +40 V DC. The current monitoring is accomplished with an external toroid pickup. The ASIC operates from a 5 V supply and communicates with the spacecraft via the I2C bus
Keywords :
aerospace instrumentation; application specific integrated circuits; microcontrollers; power supplies to apparatus; -40 to 40 V; ASIC; I2C bus; buffers; current monitoring; externally programmable attenuation; multichannel monitoring device; power remote input output; spacecraft; toroid pickup; voltage monitoring; Application specific integrated circuits; Communication system control; Condition monitoring; Current measurement; Field programmable gate arrays; Power supplies; Remote monitoring; Resistors; Space vehicles; Voltage control;
Conference_Titel :
Aerospace Conference, 2006 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
0-7803-9545-X
DOI :
10.1109/AERO.2006.1655962
