By using the Pole-Zero as the analytical means in EWB circuit analysis,the transfer function was analysed in complicated circuit or system to replace the dull and onerous manual computation.

the PSM mode can solve the disadvantages of lower efficiency in PWM and complicated circuit realization in PFM, and has the characteristice of high operating frequency, fast response speed, strong anti-jamming ability and little EMI which is generated by inductor.

The application of PLC in elevator's control system overcomes the sh ortages of more complicated circuit, bigger volume, higher failure rate and diff icult maintenance of the control circuit controlled by the electric relay, and m akes the system reliability be strengthened.

Usually, the power adjusting is made either by manual work or through a complicated circuit system, and the latter often brings difficulties to the systematic debugging and designing.

The application of PLC in elevator's control system overcomes the shortages of more complicated circuit,bigger(volume,) higher failure rate and difficult maintenance of the control circuit controlled by the electric relay,and makes the system reliability be strengthened.

With the proposal of an appliance trunk based on Matlab's Simulink and Power System to design teaching experiment on electrical electronic circuit and motion controlling system in accordance with the current circumstance of electrical and electronic technology and motion controlling system,emulating practical cases are given to prove that with emulating techniques,Students could rapidly apprehend curricula theory and comprehend skills on emulated analysis as to the complicated circuit and systematic problems.

Thus, we can construct the network system with learning ability without the need for a complicated circuit that calculates gradients of an error function.

The method allows one to construct the impedance of a complicated circuit by summing up impedance plots for series and parallel branches.

Without them, equipment resistance measurements within a complicated circuit would not mean much.

The PTA is a modular architecture, in which modules can be cascaded to determine a more complicated circuit topology.

This is not only a fundamentally interesting question, but is important in applications where the cylinder is used in a more complicated circuit.

1-step and 2-step Majority-logic decoding of cyclic codes is a simple and effective method, and its theories have been very mature of which there has been detailed discuss in many essays, but its practical design methods are very little known. According to the practice of the writer, this paper proposes a practical design method. Because rnajority-logic decoding in three or more steps with more complicated circuits is not practical, it has not been discussed in this paper; but some principles and some...

1-step and 2-step Majority-logic decoding of cyclic codes is a simple and effective method, and its theories have been very mature of which there has been detailed discuss in many essays, but its practical design methods are very little known. According to the practice of the writer, this paper proposes a practical design method. Because rnajority-logic decoding in three or more steps with more complicated circuits is not practical, it has not been discussed in this paper; but some principles and some means proposed in this paper are also valuable for it.

This articee described the principels and the method of appeiscations of "Epuivalent transformation" for the circuits of every conditions. In the analysis of complicated circuits this method of "Equivalent Transformation" plays an important past in simplifying the construction of circuit avoiding complicated computation and improvin the flexibility and the accuracy of solving problems. By means of analysis examples this method will point out how to analyse and how to solve the complicated...

This articee described the principels and the method of appeiscations of "Epuivalent transformation" for the circuits of every conditions. In the analysis of complicated circuits this method of "Equivalent Transformation" plays an important past in simplifying the construction of circuit avoiding complicated computation and improvin the flexibility and the accuracy of solving problems. By means of analysis examples this method will point out how to analyse and how to solve the complicated circuit under different conditions.

In this paper,a kind of new force balance measuring devicesis discussed.The mathematical models of the instrument are presented andits main characteristics are studied.State detected with three-state transduc-er,compensation quantity controlled with search and analysis method,digitalservo system using microprocessor are formed It is indicated by the resultsof principle experiment and analysis of this paper that the measuring devicecan be used as electronic balance,which can reach the sensitivity of 1/65536of...

In this paper,a kind of new force balance measuring devicesis discussed.The mathematical models of the instrument are presented andits main characteristics are studied.State detected with three-state transduc-er,compensation quantity controlled with search and analysis method,digitalservo system using microprocessor are formed It is indicated by the resultsof principle experiment and analysis of this paper that the measuring devicecan be used as electronic balance,which can reach the sensitivity of 1/65536of full scale and measuring accuracy near to the sensitivity with on-off tra-nsducer and 12-bit D/A convertor.It differs from traditional electronical balance,dose not need great bit-len-gth and complicated circuits,not only gets characteristics of traditional elec-tronic balance,but also carries on developing of fuction easily.