Interface Circuitry for Controller/Computer Electrical Noise Elimination
Original Publication Date: 1988-Apr-01
Included in the Prior Art Database: 2005-Feb-15
A technique is described whereby an interface circuit is placed between personal computers and robotic controllers, so as to eliminate electrical noise which can cause faulty communication instructions between the computer and the controller. The interface circuit utilizes an opto-isolator, along with the correct timing implementation to eliminate detrimental electrical noise spikes. Typically, the digital input/digital output (DI/DO) output circuits of the personal computer (PC) are connected directly to the transistor transistor logic (TTL) input circuits of the robotic controller, so as to enable the personal computer to provide the programmed operational functions to robots used in automated factories.