Programmable power supplies as used in automatic testing systems (ATS) require three commands from a computer; namely, polarity, gain and analog magnitude. Whether received from a general purpose bus such as the IEEE 488 or other means the commands are in parallel format and must be serialized. The three...http://www.google.es/patents/US4335445?utm_source=gb-gplus-sharePatente US4335445 - System for interfacing computers with programmable power supplies
System for interfacing computers with programmable power supplies
