diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/circuit_macros/examples/Three.m4 |
Initial commit
Diffstat (limited to 'graphics/circuit_macros/examples/Three.m4')
-rw-r--r-- | graphics/circuit_macros/examples/Three.m4 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/graphics/circuit_macros/examples/Three.m4 b/graphics/circuit_macros/examples/Three.m4 new file mode 100644 index 0000000000..aace5031ac --- /dev/null +++ b/graphics/circuit_macros/examples/Three.m4 @@ -0,0 +1,44 @@ +.PS +# Three.m4: three-phase oscillator + cct_init + +define(`section',`[ I: Here + resistor(right elen_*0.75); llabel(,R/2) +T: dot + line down dimen_/2 then right_ dimen_/4 + Amp: opamp(,,,,, + rgbfill(0.9,0.6,0.1,line to N then to E then to S then to Here) + "{\scriptsize$-$}" at In1 ljust + "{\scriptsize$+$}" at In2 ljust + ) with .In1 at Here + line left dimen_/4 from Amp.In2 then down dimen_/4; G: ground + resistor(from T to (Amp.Out,T)); llabel(,R) +O: dot + { arrow up dimen_*0.5 then right dimen_/4 up dimen_/4 + "$`$1^\circ'$" above } + line to Amp.Out + dot(at T+(dimen_/4,0)); line up dimen_*0.6 + capacitor(right_ Amp.Out.x-Here.x-dimen_/4,C); llabel(,2C) + line to (Here,T); dot + ]') + +A: section(0) +B: section(120) with .I at A.O +C: section(-120) with .I at B.O + + ground(at (A.I,A.G)+(dimen_/3,0),,) +P:potentiometer(down_ dimen_/2,,0.75,dimen_/2) with .End at Here + line from P.Start to (A.I,P.Start); dot + resistor(up_ dimen_*0.75 from P.T1) + line to A.T + + dot(at B.Amp.Out+(dimen_/3,0)); { "$V_c$" above } + resistor(down_ dimen_*0.75) + { dot; line right (C.T.x-Here.x)/2 + reversed(`diode',up_ dimen_) + line to C.T } + resistor(down_ dimen_*0.75) + dot + line from C.O right dimen_/4 then down C.O.y-Here.y then to (A.I,Here) \ + then to A.I +.PE |