Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1980-05-09
1982-04-06
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307503, 328144, G06G 712, G06G 724
Patent
active
043237975
ABSTRACT:
A circuit is provided in which the output current is the inverse, that is, the reciprocal, of the input current.
The circuit comprises an input current branch and an output current branch, each branch including the emitter-collector electrodes of one of matching transistors, and a reference current branch containing a pair of serially connected, like poled, diode-connected transistors. The base electrode of the input branch transistor is connected to a node in the reference branch on one side of both diode-connected transistors, and the emitter of the output branch transistor is connected to a node in the reference branch on the other side of both diode-connected transistors. The base of the output branch transistor is connected to a node in the input branch on the emitter side of the input branch transistor.
The circuit thus represents sums and differences of various voltages across the PN junctions in the several branches. Since these voltages are proportional to the logarithms of the corresponding currents, the circuit produces a resultant relationship in which the output branch current is directly proportional to the square of the reference current and inversely proportional to the input branch current.
REFERENCES:
patent: 3423578 (1969-01-01), Platzer, Jr. et al.
patent: 3701028 (1972-10-01), Markevich
patent: 3768013 (1973-10-01), Kessler et al.
patent: 3986048 (1976-10-01), Okada et al.
Embree Milton L.
Garrett William G.
Bell Telephone Laboratories Incorporated
Davis B. P.
Lockhart H. W.
Miller, Jr. Stanley D.
LandOfFree
Reciprocal current 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 Reciprocal current circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reciprocal current circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-594413