The research of DC motor drive, control and
Speed measuring system based on CPLD
【Abstract】It is realize with CPLD device , Alter of Company high accuracy , wide range in direct current machine transfer and controlling the scheme rapidly to recommend to design originally. Control of system this target whether direct current is it obey motor to wait upon, use VHDL hardware describe language realize every function of module, always function that the implementation system protects to testing the speed , adjusting speed , control and reporting to the police of electrical machinery, combine completion system debugging and emulation . The systematic one tests the speed the hardware utilizes photo electricity type one yard of such untouchable photoelectric sensors. System is it is it is it feedback comparison circuit of return circuit finish to utilize to control rapidly to adjust. Systematic emulation is really finished in MAXPLUSⅡ software. System design a direct current motor urge the power , provides the electronic circuit diagram also. To urge power voltage and whom display, motor of rotational speed spend LED seven decipher display system. Having simplified the control circuit greatly because of CPLD direct current motor control system, practice has proved it works reliably, practical.
【Keywords】CPLD; VHDL; The direct current motor controlling ;Drive power; MAXPLUSⅡ
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