Simulation Experiments for Neural Pulses - Brain Theory from a Circuits and Systems Perspective - page 211

80

Trig

60

v(2)

40

20

0

-20

-40

-60

-80

-100

0 20 40 60 80 100

ms

Fig. A.28 Tog Using simultaneous positive & negative charge injection at 0 ms to start, nodes
2 & 5; negative charge injection at 50 ms, nodes 2 & 5 to stop

Fig. A.29 Toggle circuit using positive and negative charges

Suggested models for injecting positive or negative charge are as follows.
.subckt bufv 10 13
G3 0 13 10 0 10 nA
.ends
*
.subckt bufvN 10 13
G3 13 0 10 0 40 nA
.ends
Fig. A.28 simulates the starting of multivibration at 0 ms and the stopping of
multivibration at about 60 ms.