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Latest posts from topic “Risposta dal diagramma di Bode” Latest posts from topic “Risposta dal diagramma di Bode” on “ElectroYou”. 2018-01-26T17:46:27Z https://www.electroyou.it/forum/viewtopic.php?f=1&t=72485 Re: Risposta dal diagramma di Bode https://www.electroyou.it/forum/viewtopic.php?f=1&t=72485#p752623 faberz 2018-01-26T18:59:53Z 2018-01-26T18:59:53Z
Se il sistema non è stabile, non ha senso la sua analisi per mezzo di un ingresso a gradino. Devi valutare caso per caso.
Questa formula vale solo a regime, per come hai scritto la sinusoide.
Re: Risposta dal diagramma di Bode https://www.electroyou.it/forum/viewtopic.php?f=1&t=72485#p752621 Patras 2018-01-26T18:47:17Z 2018-01-26T18:47:17Z
Grazie per la risposta!
Riguardo alla continua, non ci avevo pensato meglio introdurla in qualche modo tipo:

[unparseable or potentially dangerous latex formula]

dove g dipende un po' dai casi ad esempio se ho un polo nell'origine la risposta a regime diverge per la parte continua quindi bisogna aggiungere t etc... tutto sommato questa formula risulta utile solo per sistemi BIBO stabili credo...
Re: Risposta dal diagramma di Bode https://www.electroyou.it/forum/viewtopic.php?f=1&t=72485#p752616 faberz 2018-01-26T18:19:21Z 2018-01-26T18:19:21Z
Ovviamente assumo che tu stia cercando la risposta a regime del sistema.
Re: Risposta dal diagramma di Bode https://www.electroyou.it/forum/viewtopic.php?f=1&t=72485#p752615 faberz 2018-01-26T18:18:33Z 2018-01-26T18:18:33Z
Penso che tu debba considerare anche la fase in continua, perché il sistema potrebbe avere un guadagno negativo in continua. Detto ciò, mi sembra corretta come formula.
L'altra cosa che farei è moltiplicare tutto il risultato per la funzione gradino. Con le funzioni di trasferimento, porta bene.
Risposta dal diagramma di Bode https://www.electroyou.it/forum/viewtopic.php?f=1&t=72485#p752608 Patras 2018-01-26T17:46:27Z 2018-01-26T17:46:27Z
Ciao a tutti! Ho un dubbio qui riguardo a una vecchia formula che sto cercando di ricavare perché non la trovo...
L'esercizio chiede la risposta della fdt W(s) (di cui ho il diagramma di Bode delle fasi e del modulo) per un ingresso [unparseable or potentially dangerous latex formula]

Ricavando la fase [unparseable or potentially dangerous latex formula] e [unparseable or potentially dangerous latex formula] posso scrivere qualcosa del tipo:

[unparseable or potentially dangerous latex formula]

Ma non sono sicuro soprattutto riguardo a [unparseable or potentially dangerous latex formula] qualcuno riesce a confermarmi per favore?