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The SCR of Fig. 20.25 has gate trigger voltage V₁ = 0.7V, gate trigger current = 7 mA and holding current I= 6 mA. IT= (i) What is the output voltage when the SCR is off? (ii) What is the input voltage that triggers the SCR? (iii) If Vcc is decreased until the SCR opens, what is the value of Vcc?

The SCR of Fig. 20.25 has gate trigger voltage V₁ = 0.7V, gate trigger current = 7 mA and holding current I= 6 mA. IT= (i) What is the output voltage when the SCR is off? (ii) What is the input voltage that triggers the SCR? (iii) If Vcc is decreased until the SCR opens, what is the value of Vcc?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Vin ΙΚΩ R Vcc = + 15 V -1... 100Ω Vout
Transcribed Image Text:Vin ΙΚΩ R Vcc = + 15 V -1... 100Ω Vout
The SCR of Fig. 20.25 has gate trigger voltage V₁ = 0.7V, gate trigger current IT = 7 mA and holding current I= 6 mA. (i) What is the output voltage when the SCR is off? (ii) What is the input voltage that triggers the SCR ? (iii) If Vcc is decreased until the SCR opens, what is the value of Vcc?
Transcribed Image Text:The SCR of Fig. 20.25 has gate trigger voltage V₁ = 0.7V, gate trigger current IT = 7 mA and holding current I= 6 mA. (i) What is the output voltage when the SCR is off? (ii) What is the input voltage that triggers the SCR ? (iii) If Vcc is decreased until the SCR opens, what is the value of Vcc?
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