Second Generation Applications of Other Types of Current Conveyors in Realizing Synthetic Impedances - Current Conveyors: Variants, Applications and Hardware Implementations - page 481

a

I B1 I B2

A

V 1 I 1

z +

y 1 y 1

y 2
y 3

z −

CCDDCC3

y 2
y 3

z +

CCDDCC1

V 2 I 2

z +

x

x

B

C

I B3

y 2

z +

CCDDCC3 y 1

y 3

x

b

Fig. 14.24 Grounded capacitor floating capacitance multiplier (Adapted from [ 46 ] 2011

Elsevier) (a) The circuit configuration (b) Variation of the magnitude of the realized equivalent
capacitance

©

The workability of the capacitance multiplier was confirmed by realizing the
circuit using the CCDDCCs by the CMOS implementation of [ 60 ] (reproduced also
in Fig. 4 of [ 46 ]). The model parameters of TSMC 0.25

μ m CMOS technology were

used with the circuit biased with 1.25 V DC. The magnitude function of the

simulated capacitance shown in Fig. 14.24 confirms the variability of the realized
capacitance value through the bias current I B2 .