Integrated D/A Converter Automatic/ Manual Control Circuitry
Original Publication Date: 1982-Jan-01
Included in the Prior Art Database: 2005-Feb-08
This control circuitry is arranged for multiple tests of electric circuits and components. A digital to analog (D/A) converter, e.g., type 803, circuit module 10 is connected in a head-disk assembly testing circuit, Manual switches 12, a diode 14, a light-emitting diode indicator 16 and a manual-automatic switch 21-22 (ganged, as indicated) are added, as shown. Trim resistors 24, 26 and 28 are chosen for optimum operation in the designated surface-analysis test system.