Study of a Numerical Control DC Power

Abstract

At present, in view of the status that the common DC power supply output voltage is fixed single, non-adjustable and practicality poor, this paper introduces a kind of numerical control power system that has many source output by using switch power supply circuit technology. The output voltage of the power based on single chip technology is numerical control adjustment. The major component of the power is voltage regulator circuit, input over-voltage protection circuit, output over-voltage protection circuit, DC/AC conversion circuit, filter circuit and full-bridge circuit. The power can offer a variety of different stable voltage output values and has display function. Through the PROTEUS software simulation and circuit testing, output effect of the power is good, practicability is great, and can be used as a variety of portable electrical universal power supply.