content-transfer-encoding: quoted-printable
Here's the circuit description from the article.
"FLIP-FLOP CIRCUIT is built from two saturable amplifiers. In a saturable =
amplifier, as the input voltage increases or decreases, the output saturate=
s at maximum and minimum voltages. The output can be normal or inverted. =
A resistor connects the output of one amplifier to the input of the other; =
it's resistance determines the strength of the connection. The normal outp=
ut terminal can be used to make an excitatory connection. In the flip-flop=
the inverted output terminal is employed instead to make inhibitory connec=
tions. A capacitor and resistor connected in parallel at each input to sto=
re the charge flowing to the terminal and produce an input voltage and to a=
llow the discharge current to flow. If the minimum and maximum outputs are=
+1 and -1 and amplifier A is saturated at +1, B's input will be driven dow=
n and B's output will saaturate at -1. B's output will, in turn be inverte=
d and drive up the inout to A, thus keeping the output of A saturated at +1=
. The reverse situation, in which A is saturated at -1 and B at +1, is als=
o stable. The configuration of the amplifier voltages is represented as a =
point on a two dimensional plane. Each axis represents the output of one o=
f the amplifiers, from -1 to +1. The circuit will always move to one of th=
e two stable points near(+1,-1) and (-1,+1), no matter what the initial vol=
tages were. A third axis represents the value of the computational energy =
E for each voltage configuration. The two stable points appear as valleys =
in the E surface. The edges of the surface rise steeply, because it is imp=
ossible to exceed the minimum and maximum outputs. If an external current =
is given to one of the amplifiers, this will deepen the valley that corresp=
onds to that amplifier's being in the +1 state."
Does that help any? I guessing that the hookups are determined by whether =
you want the next one to be Excitatory or Inhibitory. Let me know if you n=
eed more info.
Richard
content-transfer-encoding: quoted-printable
>
Here's the circuit description f=
rom the =
article.
"
color=3D#800000>FLIP-FLOP CIRCUIT is built from two saturable =
amplifiers. In a saturable amplifier, as the input voltage increases =
or =
decreases, the output saturates at maximum and minimum voltages. The =
output can be normal or inverted. A resistor connects the output of o=
ne =
amplifier to the input of the other; it's resistance determines the strengt=
h of =
the connection. The normal output terminal can be used to make an =
excitatory connection. In the flip-flop the inverted output terminal =
is =
employed instead to make inhibitory connections. A capacitor and resi=
stor =
connected in parallel at each input to store the charge flowing to the term=
inal =
and produce an input voltage and to allow the discharge current to flow.&nb=
sp; =
If the minimum and maximum outputs are +1 and -1 and amplifier A =
is saturated at +1, B's input will be driven down and B's=
=
output will saaturate at -1. B's output will, in turn b=
e =
inverted and drive up the inout to A, thus keeping the output of <=
EM>A =
saturated at +1. The reverse situation, in which A is =
saturated at -1 and B at +1, is also stable. The =
configuration of the amplifier voltages is represented as a point on a two =
dimensional plane. Each axis represents the output of one of the =
amplifiers, from -1 to +1. The circuit will always move to one of the=
two =
stable points near(+1,-1) and (-1,+1), no matter what the initial voltages =
were. A third axis represents the value of the computational energy =
E for each voltage configuration. The two stable points=
=
appear as valleys in the E surface. The edges of the surface=
rise =
steeply, because it is impossible to exceed the minimum and maximum =
outputs. If an external current is given to one of the amplifiers, th=
is =
will deepen the valley that corresponds to that amplifier's being in the +1=
=
state.
size=3D2>"
Does that help any? I gues=
sing that =
the hookups are determined by whether you want the next one to be Excitator=
y or =
Inhibitory. Let me know if you need more info.
Richard
Attachment: sciamflipflop.jpg
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