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Table 1

The system parameters used for simulation.

System block Parameters and devices
Hysteresis 1 R25 = 100 ohm, R28 = 20 k, R27 = 30k, R26 = 510ohm, 2Diodes 1n4148, Diode Zener DZ3 = 12v, R29 = 3k
Hysteresis 2 R10 = 100 ohm, R11 = 3.5k, R12 = 20k, R13 = 22k, 2Diodes 1n4148
Summation R17 = 20k, R18 = 20k, R19 = 20k, R20 = 20k, C = 2.2nF
Comparator 1 R21 = 12.5k, R22 = 12.5k, R23 = 51k, R24 = 51k, C = 2.2nF
Comparator 2 R4 = 12.5k, R5 = 12.5k, R6 = 51k, R7 = 51k, C = 2.2nF
Inverting circuit R14 = 150k, R15 = 1.5k, R16 = 1k, 2Diode Zener = 12v, Transistor npn 547
Pref generator R30 = 1 k, R34 = 100 k, R31 = 6 k, R32 = 510 ohm, R33 = 20 k, R34=40 k, R35 = 20 k, R36 = 40 k, R37 = R38 = R39 = 60 k, 6Diode 1n4148, 6 Capacitors = 100 nF, NE555
Holder D585 C10 = 66nF, C11 = 27pF, AD585
Multiplier MPY634

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