Hi all,
This circuit is driving me crazy and I'm not smart enough to figure it out on my own.
My question is: how do we get 6.42V on the base? Usually, there's a voltage divider at the base and then it's a little more simple. But here, I don't know where to start.
The whole emitter follower arrangement has a few mysteries for me. When the emitter goes straight to ground, it's clear, the base current flows, the CE path starts to pass current depending on how much current flows into the base, which in turn is determined by the base resistor.
With the emitter-follower, it's more complicated because the base current depends on Vload and the Vload depends on VCE, which in turn depends on Ib. It's like a chicken and egg problem.
Thank you!
This circuit is driving me crazy and I'm not smart enough to figure it out on my own.
My question is: how do we get 6.42V on the base? Usually, there's a voltage divider at the base and then it's a little more simple. But here, I don't know where to start.
The whole emitter follower arrangement has a few mysteries for me. When the emitter goes straight to ground, it's clear, the base current flows, the CE path starts to pass current depending on how much current flows into the base, which in turn is determined by the base resistor.
With the emitter-follower, it's more complicated because the base current depends on Vload and the Vload depends on VCE, which in turn depends on Ib. It's like a chicken and egg problem.
Thank you!
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