This circuit while crude is an inexpensive way to drive or test servo motor systems without the need for a compete system.
This circuit has also been used to drive the - Victor 884 Speed Controller. The purpose of this was to test a controller that was thought to be damaged. The circuit could also be used to operate the controllers without the need to have a full robot controller unit available.
The complete robot control system can be seen at the IFI Robotics home page
These circuits uses a SPDT, ON-OFF-ON toggle switch to select One-of-Three positions for a servo motor.
Also, the position of the motor may drift as the circuit gets warmer.
The explanations for the circuits on these pages cannot hope to cover every situation on every layout. For this reason be prepared to do some experimenting to get the results you want. This is especially true of circuits such as the "Across Track Infrared Detection" circuits and any other circuit that relies on other than direct electronic inputs, such as switches.
If you use any of these circuit ideas, ask your parts supplier for a copy of the manufacturers data sheets for any components that you have not used before. These sheets contain a wealth of data and circuit design information that no electronic or print article could approach and will save time and perhaps damage to the components themselves. These data sheets can often be found on the web site of the device manufacturers.
Although the circuits are functional the pages are not meant to be full descriptions of each circuit but rather as guides for adapting them for use by others. If you have any questions or comments please send them to the email address on the Circuit Index page.
11 February, 2019