operational amplifier - How does this OP amp circuit with a transistor work? - Electrical Engineering Stack Exchange
operational amplifier - Transistor control through opamp - Electrical Engineering Stack Exchange
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![Chapter 4: Op Amp applications - Advanced topics [Analog Devices Wiki]](https://wiki.analog.com/_media/university/courses/electronics/text/chptr4-f3.png?w=600&tok=388677 "Chapter 4: Op Amp applications - Advanced topics [Analog Devices Wiki]")
Chapter 4: Op Amp applications - Advanced topics [Analog Devices Wiki]
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