Briefly analyzed the characters of measuring three-phase electric power parameters,introduced a method of interface between the chip of S3C44B0X with 32-bit embedded processor of ARM7TDMI and the A/D application-specific chip of ADS7864.The structure can predigest hardware circuits,relieve the contradiction between the real-time capabilities and precision when sampling data.
In the description of the scheme,the general framework of the scheme is shown first,then CPU——SEP3203,the core board hardware design,FPGA board hardware design,the system bus design and the system of power is specified one by one.
If is a ?2-grading of a simple Lie algebra, we explicitly describe a-module Spin0 () such that the exterior algebra of is the tensor square of this module times some power of 2.
The operation adj on matrices arises from the (n - 1)st exterior power functor on modules; the analogous factorization question for matrix constructions arising from other functors is raised, as are several other questions.
Let q be a power of p and let G(q) be the finite group of Fq-rational points of G.
We prove a Tauberian theorem of the form $\phi * g (x)\sim p(x)w(x)$ as $x \to \infty,$ where p(x) is a bounded periodic function and w(x) is a weighted function of power growth.
A new C*-algebra of strong limit power functions is proposed.