An improved power flow algorithm of distribution network based on power compensation and forward / backward sweep method is proposed,which can deal with weakly meshed network as well as the problem of PV bus and multi-sources,so it can calculate the power flow of all kinds of distribution networks.

This paper presents overall structure of power supply and distribution system of a typical middle spinning mill,including load calculation,arrangement of main wiring system,selection of equipment type,and reactive power compensation design.

The article discusses the functions of detection and processing of primary instantaneous current signal and slope compensation in peak current control circuit of high power soft-switch arc welding inverter,introduces the methods to complete the functions.

Based on analyzing stability of peak current mode DC-DC converter,this paper presents the method of four-phase slope compensation.

The paper introduces the general function of current mode control PWM converter s theory, analyzes slope compensation s necessity for system s large signal stability, proposes a slope compensation circuit in which the compensation slope varies with the difference value of output voltage and input voltage.

A simple frequency compensation method;

FEA of frequency compensation principle of accurate tuning unit under varying temperature;

A Dynamic Frequency Compensation Scheme for LDO;

Low voltage bandgap reference design with closed loop curvature compensation

Comparing to the typical temperature compensation, the third branch current can be added to optimize the temperature features by curvature compensation.

Using high-order curvature compensation technique,the temperature performance of the voltage reference has been enhanced by offsetting the negative temperature dependence of the logarithmic term in Vbe(T) with a positive term.