Hi, i am trying to build a very simple motor speed controller, for a small toy-type DC 3V motor.
I have been looking this simple project on many sites, but because my electronics skills are very limited i would like to know if there is any schematic (breadboard friendly) which can be useful for me that can skip the hard task to use microcontrollers i.e. PIC, EEPROM or whatever and hard to find chips or outdated ones (as TDA7274 http://www.datasheetcatalog.org/datasheet/stmicroelectronics/1481.pdf) (did i mention i am a pic programming disabled?).
The only requirement i have for this project is, i am forced to use a 9V pp3 battery as power source.
The rest is just to control the motor speed by adjusting some sort of trimmer, but of course i am aware other components would be needed.
Well, i hope someone could help me with this matter, i need to do this as a science project for my university class.
Thanks in advance.
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I am sorry if my english skills maybe not good because is not my mother language.
I have been looking this simple project on many sites, but because my electronics skills are very limited i would like to know if there is any schematic (breadboard friendly) which can be useful for me that can skip the hard task to use microcontrollers i.e. PIC, EEPROM or whatever and hard to find chips or outdated ones (as TDA7274 http://www.datasheetcatalog.org/datasheet/stmicroelectronics/1481.pdf) (did i mention i am a pic programming disabled?).
The only requirement i have for this project is, i am forced to use a 9V pp3 battery as power source.
The rest is just to control the motor speed by adjusting some sort of trimmer, but of course i am aware other components would be needed.
Well, i hope someone could help me with this matter, i need to do this as a science project for my university class.
Thanks in advance.
---
I am sorry if my english skills maybe not good because is not my mother language.