Uploaded February 2019 | Updated September 2026, 3 weeks ago

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In this lesson we'll use the Thevenin's equivalent circuit of a larger, more complicated, series-parallel charging circuit to analyze the capacitor charging process. (Full Lecture)

ANSWERS TO CHALLENGE:
@t=0
V1=12.3V
I1=49.1mA
V2=11.7V
I2=15.6mA
V3=16.7V
I3=33.5mA

when VC=0V @t=2.02ms
V1=10.9V
I1=43.6mA
V2=13.1V
I2=17.5mA
V3=13.1V
I3=26.2mA

@t=10ms
V1=7.9V
I1=31.5mA
V2=16.1V
I2=21.5mA
V3=5.0V
I3=10.0mA

@t=5TAU=41.25ms
V1=6V
I1=24mA
V2=18V
I2=24mA
V3=0V
I3=0mA

v1(t)=6V + 6.3V e^(-t/8.25ms)
i1(t)=24mA + 25.1mA e^(-t/8.25ms)
v2(t)=18V - 6.8V e^(-t/8.25ms)
i2(t)=24mA - 8.4mA e^(-t/8.25ms)
v3(t)=16.7V e^(-t/8.25ms)
i3(t)=33.5mA e^(-t/8.25ms)

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