For an SCR the total turn-on time consists ofi) Delay timeii) Rise time andiii) Spread timeDuring the delay time the - Study24x7
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17 Apr 2019 03:45 PM study24x7 study24x7

For an SCR the total turn-on time consists of
i) Delay time
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anode current flows only near the gate


anode current rises from zero to very high value


losses are maximum


anode to cathode voltage is zero

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  • geet sharma
  • Initially for a fraction of a microsecond (delay time) after the gate signal is applied the anode current only flows near the gate terminal where the gate current density is maximum, as the gate current takes some time to spread all over the cross section of the device.

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