Electrical transmission or interconnection systems – Switching systems – Plural switches
Patent
1981-10-13
1984-09-11
Goldberg, E. A.
Electrical transmission or interconnection systems
Switching systems
Plural switches
355 3SH, 355 14SH, H01H 1964, H01H 4700
Patent
active
044712340
ABSTRACT:
A circuit for indicating the current or existing composite operating states of a plurality of switches switchable between open and closed states, and all normally disposed in a first of those states, includes a resistance of predetermined value for and connected to each switch, and connections between all of the switch-resistance combinations to form a switch assembly which outputs a total resistance uniquely defined in accordance with the particular existing open and closed states of the plural switches. A constant current source supplies a constant current to the switch assembly so that the assembly outputs a voltage in accordance with the unique resistance, and a voltage discriminator receives the voltage output and generates a corresponding output indicative of the existing operating states of the switches.
REFERENCES:
patent: 3371254 (1965-10-01), Hagfors
patent: 3375435 (1966-03-01), Baugher
patent: 4190246 (1980-02-01), Sasuga
Bierman Jordan B.
Bierman Linda
Goldberg E. A.
Jennings Derek
Konishiroku Photo Industry Co,., Ltd.
LandOfFree
Switch circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Switch circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switch circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1196602