In the design, to produce circuit TL494 as a PWM output control signals, control of the on-switch situation, the half-bridge flyback output on the basis of the power of multi-output.

Suspension pipe bridge is a kind of common structural form consisted mainly of main cable wind cable tower foundation anchor system and girder form pipe bridge.

This paper discusses the analysis on forces and determination of installation dimensions of main structural parts of the suspension pipe bridge by means of finite element analysis program ANSYS.