Develop along with the technical high speed in arithmetic figure; the direct current servocontrol system expresses an unprecedented advantage. Microcomputer servo control system drive extensive application in each realm, combine to become the indispensable parts in equipments in high accuracy. This text introduced the technical development in servo control in direct current and apply the general situation, analyzing completely the servo system constitute with the principle. Emphasized to order to introduce the servocontrol system hardware electric circuit design detailed at the same time to introduce the power of PWM convert design and its related protection electric circuits that the design, the system of PWM of the electric circuit drive electric circuits. The trend that calculator control have become the society the development, still introduced the design of the single a machine system here and it’s in the servocontrol application in the technique.
Keywords : DC servo PWM vein breadth makes
Power conversion Drive the electric circuit
computer control Microcomputer