2026-04-12 11:38:07 +02:00
|
|
|
Hartley's Oscillator Circuit
|
|
|
|
|
* Hartley is an harmonic oscillator (LC based) which use
|
|
|
|
|
* an inductive partition of resonator to feed the single
|
2026-04-20 17:02:10 +02:00
|
|
|
* active device. Output is taken on node n2.
|
2026-04-12 11:38:07 +02:00
|
|
|
* Prediceted frequency is about 121.176 Hz.
|
|
|
|
|
|
|
|
|
|
* Models:
|
|
|
|
|
.model qnl npn(level=1 bf=80 rb=100 ccs=2pf tf=0.3ns tr=6ns cje=3pf cjc=2pf va=50)
|
|
|
|
|
|
|
|
|
|
vcc 1 0 5 pwl 0 0 1e-5 5
|
2026-04-20 17:02:10 +02:00
|
|
|
r1 1 n2 0.2k
|
|
|
|
|
q1 n2 3 0 qnl
|
2026-04-12 11:38:07 +02:00
|
|
|
c1 3 4 633n
|
|
|
|
|
l1 3 0 1.5
|
|
|
|
|
l2 0 4 500m
|
2026-04-20 17:02:10 +02:00
|
|
|
r2 4 n2 100
|
2026-04-12 11:38:07 +02:00
|
|
|
|
|
|
|
|
.control
|
2026-04-20 17:02:10 +02:00
|
|
|
set xbrushwidth=2
|
2026-04-12 11:38:07 +02:00
|
|
|
tran 10u 1
|
2026-04-20 17:02:10 +02:00
|
|
|
rusage time
|
|
|
|
|
plot v(n2) xlimit 0 100m
|
|
|
|
|
linearize v(n2) np=65536
|
|
|
|
|
fft v(n2)
|
|
|
|
|
plot mag(V(n2)) xlimit 0 500 ylimit 0 1.5
|
2026-04-12 11:38:07 +02:00
|
|
|
reset
|
2026-04-20 17:02:10 +02:00
|
|
|
* gfreq tstab oscnob psspoints harms sciter steadycoeff
|
|
|
|
|
pss 120 100e-3 n2 1024 11 10 5e-3
|
|
|
|
|
rusage
|
|
|
|
|
setplot pss1
|
|
|
|
|
plot v(n2) xlimit 0 500 ylimit 0 1.5
|
|
|
|
|
setplot pss2
|
|
|
|
|
plot v(n2)
|
2026-04-12 11:38:07 +02:00
|
|
|
.endc
|
|
|
|
|
|
