One of the motives of recent studies for designing discrete-time impedances by using Switched-Capacitor (SC) technology, is to simulate general impedances such as FDNR, Super-L and so on. The authors have previously proposed the 'Switched-Capacitor Impedance Simulation Circuit (SC-ISC)' to accomplish this purpose. An improved version of the SC-ISC, which is based on the LDI s yields z transformation, is proposed, with the partly-differential structure. One of the advantages of using the partly-differential structure is that exact LDI immittances are easily obtained. A lossless discrete differentiator is simulated with an LDI integrator by using the enhanced flexibility of the differential form. By applying the improved SC-ISC, a design technique for a new 'Frequency Dependent Voltage Controlled Current Source Pair (FD-VCCS-P)' is proposed. Two kinds of special FD-VCCS-Ps are investigated, and their applications are described. Results of experiments and simulations are reported.
|Number of pages||8|
|Journal||Transactions of the Institute of Electronics, Information and Communication Engineers, Section E (|
|Publication status||Published - 1987 Apr|