Design of The Linearity Direct Current Steady Voltage Electrical Source
Abstract
This thesis was detailed to introduce two kinds of linearity direct current steady voltage electrical sources, the main power supply that output voltage for fixed ±5Vwith the short-circuit protection and give an alarm, and the other direct current steady voltage power supply that output 0~±18V adjustable voltage with the short-circuit protect and give an alarm.This design is owing to existing two numerical electric circuits comprehensive experiment box of the engineering department electronics laboratory of electronics use of the improvement of direct current steady voltage power supply.Two kinds of the direct current steady voltage electrical source can provide to stabilize the dependable direct current exportation electric voltage, it outputs the electric current below 1.5 A, the demand that can satisfy the current experiment.And when appear the short circuit can provide the dependable protection in time because of various reason, and provide sound and light to the short-circuit phenomenon that the exportation carry to give an alarm of the designation, remind the user to examine the breakdown or cut off the power supply in time, need the short circuit to reset to recover the normal work after break down the exclusion, raise safe function of the experiment box.Because the direct current steady voltage electrical source end to install in experiment box, the design and layoutses of its PBC board, power transformer...etc. consider the cleverly made tightly packed well with disperse heat problem, the electricity conjunction of the in the interval adopts the patch cord row type conjunction, attending to the beauty in addition generous, make real object the design is near to in the product more!
Key word: The Linearity Direct Current Steady Voltage Electrical Source;Short-circuit Protect;Give an Alarm With Sound and Light ;Reposite to Comeback