Frequency to voltage converter for DC geared motor

[sue]

hello everyone ....
recently , i had bought DC geared motor SPG30E-300K...
currently i doing my controller(PID) for controlling DC motor speed and position for my project ... It appear that i need to know the value of frequency to voltage converter for the dc motor before i start designing the controller . For example hw volt i need to rotatethe motor shaft let say 30deg ????
need some advice and suggestion ....

[waiweng83]

Why do you need the freq to voltage converter? You can just control the motor directly with PWM. Of course you will need a hardware motor driver. For some information regarding PID, you may refer to http://tutorial.cytron.com.my/2012/06/2 ... ed-design/