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The waveforms of a BJT transistor used as a switch are shown below. The parameters are as follows: Vcc = 200V, VCE(sat) = 2V, Ics = 100A, VBE(sat) = 3V, lg = 10A and f, =10 kHz. The various times on the graph are: tg = 0.6us, t, = 1.8us, ts = 3µs, t = 4µs, tn = 47.6µs and to = 43µs. Neglect ICEO (lceo = 0 mA). The average power loss due to the base current is equal to:

The waveforms of a BJT transistor used as a switch are shown below. The parameters are as follows: Vcc = 200V, VCE(sat) = 2V, Ics = 100A, VBE(sat) = 3V, lg = 10A and f, =10 kHz. The various times on the graph are: tg = 0.6us, t, = 1.8us, ts = 3µs, t = 4µs, tn = 47.6µs and to = 43µs. Neglect ICEO (lceo = 0 mA). The average power loss due to the base current is equal to:

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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The waveforms of a BJT transistor used as a switch are shown below. The parameters are as follows: Vcc = 200V, VCE(sat) = 2V, Ics = 100A, VBe(sat) = 3V, lg = 10A and f, =10 kHz. The various times on the graph are: ta= 0.6ps, t, = 1.8us, ts = 3µs, t = 4µs, tn = 47.6µs and to = 43µs. Neglect ICEo (Iceo = 0 mA). The average power loss due to the base current is equal to: Ias VBE T- 1/f, Select one: O a. 35W O b. 45W O c. 25W O d. 15W
Transcribed Image Text:The waveforms of a BJT transistor used as a switch are shown below. The parameters are as follows: Vcc = 200V, VCE(sat) = 2V, Ics = 100A, VBe(sat) = 3V, lg = 10A and f, =10 kHz. The various times on the graph are: ta= 0.6ps, t, = 1.8us, ts = 3µs, t = 4µs, tn = 47.6µs and to = 43µs. Neglect ICEo (Iceo = 0 mA). The average power loss due to the base current is equal to: Ias VBE T- 1/f, Select one: O a. 35W O b. 45W O c. 25W O d. 15W
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