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Latest posts from topic “Rete dinamica con due interruttori” Latest posts from topic “Rete dinamica con due interruttori” on “ElectroYou”. 2016-12-03T13:23:15Z https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918 Re: Rete dinamica con due interruttori https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918#p683777 rugweri 2016-12-10T17:13:42Z 2016-12-10T17:13:42Z
E di che, figurati... buona fortuna anche a te per i tuoi studi O_/
 Re: Rete dinamica con due interruttori https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918#p683776 polaris006 2016-12-10T17:12:01Z 2016-12-10T17:12:01Z
Grazie ancora e buona fortuna! O_/
 Re: Rete dinamica con due interruttori https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918#p683775 rugweri 2016-12-10T17:10:19Z 2016-12-10T17:10:19Z
Si, anche io... ma al terzo, e di xxxxx :D
 Re: Rete dinamica con due interruttori https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918#p683770 polaris006 2016-12-10T16:37:25Z 2016-12-10T16:37:25Z
ciao, sì, anche tu? io sono al secondo anno
ps: scusa il ritardo :D
 Re: Rete dinamica con due interruttori https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918#p682704 rugweri 2016-12-03T15:55:17Z 2016-12-03T15:55:17Z
Prego, caro/a collega (sei xxxxx, giusto?) :ok:
 Re: Rete dinamica con due interruttori https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918#p682694 polaris006 2016-12-03T15:13:42Z 2016-12-03T15:13:42Z
Foto Utenterugweri
Grazie mille, ho capito. :ok:
 Re: Rete dinamica con due interruttori https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918#p682690 rugweri 2016-12-03T14:40:14Z 2016-12-03T14:40:14Z
Voi il gradino di Heaviside lo identificate con u(t), giusto?
Bene, per combinare le due espressioni puoi semplicemente sfruttare la traslazione dei gradini; ti spiego meglio:

Se hai un'espressione che vale da 0 a t_{1}, puoi scriverla nella forma

[unparseable or potentially dangerous latex formula]

Perchè così avrai un'espressione che vale:

0 per t < 0 perchè i gradini sono tutti nulli
f(t) per 0 \leq t < t_{1} perchè u(t) = 1 e [unparseable or potentially dangerous latex formula]
0 per t \geq t_{1} perchè i due gradini valgono 1 e quindi la loro sottrazione vale 0


Quindi, se hai [unparseable or potentially dangerous latex formula] per 0 \leq t < t_{1} e [unparseable or potentially dangerous latex formula] per t_{1} \leq t < t_{2}, puoi scrivere:

[unparseable or potentially dangerous latex formula]
 Rete dinamica con due interruttori https://www.electroyou.it/forum/viewtopic.php?f=2&t=66918#p682679 polaris006 2016-12-03T13:23:15Z 2016-12-03T13:23:15Z
Buongiorno a tutti,
sto risolvendo una rete in cui sono presenti un induttore e due interruttori, che si aprono/chiudono in due istanti di tempo distinti. L'esercizio chiede di calcolare la corrente i(t) che scorre nell'induttore e di tracciarne l'andamento.
Ho trovato l'equazione di i(t) in ciascuno degli intervalli di tempo, ma non ho capito come e perchè combinarle per trovare un'unica equazione
Allego una foto della rete e della soluzione
Grazie in anticipo