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herr_ingo
modified 8 years ago

Fuente de alimentación - Circuito de protección

2
1
289
03:04:13
Como no existe un tiristor SCR, he tenido que poner el circuito equivalente con dos transistores PNP y NPN. El pulsador superior es el que imitaria un corto en la salida de la fuente, pero en realidad este terminal tendría que ir conectado al negativo de la salida de la fuente, y cuando hubiese un cortocircuito habria un pulso positivo en la salida y excitaría la puerta del SCR activando el relé (relevador que sería de doble circuito) que cortaría la salida del circuito. El pulsador de abaja es el que hace RESET al sistema. As there is no thyristor SCR, I had to put the equivalent circuit with two PNP and NPN transistors. The upper pushbutton is the one that imitates a short at the output of the source, but in reality this terminal would have to be connected to the negative output of the source, and when there was a short there would be a positive pulse at the output and would excite the door of the SCR activating the relay (relay that would be of double circuit) that would cut the output of the circuit. The down button is the one that RESET the system.
published 8 years ago
Shovex
8 years ago
I would appreciate an english description very much

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