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| General Electronics Chat This forum is for general chat about electronics, eg: Dont know what a part does? Dont know how to read a circuit? Want to get an opinion? |
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5th November 2009, 10:38 AM
| #1 |
 Scr....
In SCR circuits used for controlled rectification,the gate pulse applied through a diode....What is the purpose of this diode???Even if the diode is not there wont the circuit wrk just as well....coz even if opposite polarity current flows through the gate terminal,which is supposed to turn off the SCR,the SCR would remain off anyways since the anode-cathode voltage is negative....
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5th November 2009, 05:45 PM
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It's to prevent excess reverse voltage on the SCR gate, which generally has a low reverse voltage maximum rating.
__________________ Carl Curmudgeon Elektroniker | |
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5th November 2009, 06:15 PM
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Okk.....so what would happen if this rating is exceeded....its gonna burn down the SCR????
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5th November 2009, 06:18 PM
| #4 | |
| Quote:
__________________ Carl Curmudgeon Elektroniker | ||
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