The data's collateral communicationsare achieved by using double ports RAM IDT7130. Two hysteresis regulators are used as current regulators and double modules controller combined Bang-Bang control with PI controlas speed regulator.
It is a high-powered micro-computer control system which consists of a single chip micro-computer 87C552, a DSP device TMS320C30, a double ports RAM IDT7132 and otherwise.
It is a high powered micro computer control system which consists of a single chip micro computer 87C552,a DSP device TMS320C30,a double ports RAMIDT7132 and othervise.
Taking branch impedance matrix for mathematical model of small current neutral grounding system and faulty point for boundary ports, the fault-free part of small current neutral grounding system was simplified as a symmetrical double ports network, various arbitrary two points earth faults were simulated by connecting two simple and independent unsymmetrical networks to the above-mentioned boundary ports and corresponding calculation model was built up.
Once master trigger event appears,the time distribution and amount of correlating events (neutron burst) can be recorded in the double ports memory buffer in 128 μs period.
The special circuit and its working procedure for measurement of time distribution of neutron bursts in the thermal cycle of metal(Ti) absorbed in pressurized deuterium gas are described in the paper.Once master trigger event appears,the time distribution and amount of correlating events (neutron burst) can be recorded in the double ports memory buffer in 128 μs period.The random data of uncorrelating events can be recorded regularly also.The resolution ability of time distribution is ≥0.5 μs, ...
A fully digitalized VVVF vector-controlled system with the double 80c196KC single-chip computers used as main controllers is presented. The data's collateral communicationsare achieved by using double ports RAM IDT7130. Two hysteresis regulators are used as current regulators and double modules controller combined Bang-Bang control with PI controlas speed regulator. Experimental results show that the hardware and softeware design of thesystem is reasonable the speed adjusting charact...
This paper expounded a double CPU control device used for a transformer differential protection on fuzzy set theory. It is a high-powered micro-computer control system which consists of a single chip micro-computer 87C552, a DSP device TMS320C30, a double ports RAM IDT7132 and otherwise. The theory of fault criterion on a transformer differential protection is formed by incorporating the main point of both scalar product breaking theory and fault current mutation component theory. Fuzzy c...