Multi-node immittance network
AssigneeInternational Standard Electric Corporation
InventorsJoannes C. A. M. Wouters, Hugo F. J. Witters
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Abstract
A supercapacitance element is disclosed having the input signal applied to both the inverting and non-inverting inputs of a single operational amplifier via two respective potentiometers made up of resistors except for the branch between the inverting input and the ungrounded input terminal which is constituted by a capacitor. The amplifier output is resistively connected to the inverting input of the amplifier and capacitively connected to the ungrounded input terminal.
Claims9
A multi-node immittance network producing between two input nodes an immittance with a real component proportional to the square of the frequency, one of said input nodes being ground, comprising:
- an operational amplifier having an inverting input, a non-inverting input and an output;
- a first admittance connected between said output and said inverting input;
- a second admittance connected directly between said output and the other of said input nodes;
- a third admittance connected between said non-inverting input and said other of said input nodes;
- and
- a fourth admittance connected between said inverting input and said other of said input nodes.
Dependencies are inferred from the claim text.