• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.38 no.1
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• pp.94-98
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• 2010

The auxiliary power supply for satellite should make the power safe and support it for subsystems during its operational lifetime. Several contstraints should be required to get high reliability. In this paper, the auxiliary power supply was satisifed and designed to be satisified with some contstraints. Control circuits for the auxiliary power supply used majority voter circuits to remove the single point failure. To verify majority voter circuits, proto-type auxiliary power supply was manufactured and tested.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.46 no.7
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• pp.1-6
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• 2009

This paper presents new high speed architecture using DBI(Data Bus Inversion) in DRAM. The DBI is one of the general methods in the signaling circuits to decrease the known problems such as SSO and LSI. Many architectures have been proposed to reduce the number of transitions on the data bus. In this paper, the DBI, the Analog Majority Voter (AMV) circuit, the GIO control circuit and the SSO algorithm are newly proposed. The power consumption can he reduced with the help of direct GIO inversion method and the eye diagram of data can be increased to 40ps. Using proposed DBI scheme can produce almost stable SI of DQs against high speed operation. The DBI is fabricated in 90nm CMOS Technology.