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Latest posts from topic “Aiuto circuito dinamico del 2° ordine in regime sinusoidale” Latest posts from topic “Aiuto circuito dinamico del 2° ordine in regime sinusoidale” on “ElectroYou”. 2016-06-19T19:26:47Z https://www.electroyou.it/forum/viewtopic.php?f=2&t=64717 Re: Aiuto circuito dinamico del 2° ordine in regime sinusoid https://www.electroyou.it/forum/viewtopic.php?f=2&t=64717#p656004 admin 2016-06-20T00:07:30Z 2016-06-20T00:07:30Z
Non esiste alcun passaggio che spiega le valutazioni che attribuisci al libro
Re: Aiuto circuito dinamico del 2° ordine in regime sinusoid https://www.electroyou.it/forum/viewtopic.php?f=2&t=64717#p655973 DLz 2016-06-19T20:37:31Z 2016-06-19T20:37:31Z
EDIT: Avevo sbagliato un segno, adesso trovo anch'io che \overline{Vg}= j8 V e quindi nel dominio del tempo [unparseable or potentially dangerous latex formula]. Però la mia domanda resta, perché [unparseable or potentially dangerous latex formula] e [unparseable or potentially dangerous latex formula], cioè qual è il passaggio, nel dominio del tempo, che porta ad avere valori nulli per i_L e V_1 ?
Aiuto circuito dinamico del 2° ordine in regime sinusoidale https://www.electroyou.it/forum/viewtopic.php?f=2&t=64717#p655956 DLz 2016-06-19T19:26:47Z 2016-06-19T19:26:47Z
Salve a tutti :-) , questo è il circuito:



L'interruttore K, si chiude a t=0. L'esercizio vuole, sapendo che la rete è in regime prima della chiusura di K, l'andamento di [unparseable or potentially dangerous latex formula] .

Prima di tutto porto tutto nel dominio dei fasori e poi inizio studiando le condizioni iniziali per t=0^- (quindi interruttore ancora aperto)

Trovo come risultato \overline{Vg}= \overline{V_1} + \overline{V_L} = 8 V (sono nel dominio dei fasori)

E, passando al dominio del tempo ho [unparseable or potentially dangerous latex formula] allora a t=0 ho [unparseable or potentially dangerous latex formula]

Il libro invece, dopo aver trovato il fasore della corrente nell'induttore \overline{I_L} ed il

fasore della tensione nel resistore R_1, ossia \overline{V_1}, uguali a quelli da me

ottenuti, scrive, passando nel dominio del tempo che

[unparseable or potentially dangerous latex formula] allora [unparseable or potentially dangerous latex formula]

e

[unparseable or potentially dangerous latex formula] allora [unparseable or potentially dangerous latex formula]

E quindi ha la condizione iniziale [unparseable or potentially dangerous latex formula]

Ma perché [unparseable or potentially dangerous latex formula] e [unparseable or potentially dangerous latex formula]

Grazie :D