Proszę zobaczyć: Please see: <https://easyeda.com/editor#id=TtnhzQ82k> Możesz również wkleić ten ogólny subckt do schematu: You can also paste this generic subckt into a schematic: ~~~~ ************************************************ * Generic bipolar transistor output optocoupler ************************************************ ** * The model has 3 user parameters: ** * i) CTR: Current Transfer Ratio in %; * ii) Fpole: 3dB point of high frequency rolloff (bandwidth) in Hz; * iii) EPSILON: a way to approximate to the reduction in CTR with * increasing LED current. Higher values of EPSILON increase the CTR * reduction. This is mostly a manual adjustment because this effect, * although very much apparent in real devices, is poorly documented * in many device datasheets. ** * Developed for EasyEDA by signality.co.uk ** * Last edited 140226 ** *************************** * NPN BJT base * NPN BJT collector | * NPN BJT emitter | | * LED cathode | | | * LED anode | | | | * | | | | | .subckt OPTOBJTEE A K E C B *************************** * Default user parameters * set EE model similar to * LTspice 4N25 model ************************** + CTR = 87.6 Fpole = 1Meg EPSILON = 60 ************************** DIRLED A DIRLED_C IRLED VIMON DIRLED_C K 0 B1 GND LPF I = tanh(I(vimon)*epsilim)/epsilim RLPF GND LPF 1 CLPF LPF GND {1/(2*pi*fpole)} B2 GND B I = V(lpf)*ctr/(100*qn_bf) Q1 C B E QN ** * Circuit params ** .param Nirled = 1.6 qn_bf = 100 + epsilim = LIMIT(1m, epsilon, 10k) .model QN NPN(BF={qn_bf}) .model IRLED D(N={Nirled} rs=1) .ENDS ************************************************ ~~~~ Jak pokazano w powyższych przykładachj: As shown in these examples: <https://easyeda.com/editor#id=Ev5rpnJG2|808qkCTN5|6OkCwO5nF>