Circuit for interfacing between an external signal and control a

Details Circuit for interfacing between an external signal and control a Circuit for interfacing between an external signal and control a

1977-09-29

1980-04-08

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307DIG1, 307237, 250211J, H03K 342, H03J 3912

Patent

active

041974719

ABSTRACT:
An input/output interface for a digital controller including an optical isolator coupling an input portion which formats an external signal to make it compatible with the optical isolator and an output portion comprising an RC network connected to a threshold detector with hysteresis to provide a filtered output logic signal in addition to an accompanying audio or visual signal. The interface, with slight modifications can be used with either DC or AC external signals.

REFERENCES:
patent: 3691403 (1972-09-01), Newmeyer
patent: 4041331 (1977-08-01), Westermall et al.
patent: 4079272 (1978-03-01), Howatt

Affiliated with

Also associated with

Rating

Circuit for interfacing between an external signal and control a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for interfacing between an external signal and control a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for interfacing between an external signal and control a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-975467