Lecture - 36 Current Source and Current Sink

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Uploaded by on Sep 1, 2008

Lecture Series on Electronics for Analog Signal Processing I by Prof. K. Radhakrishna Rao, Department of Electrical Engineering, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in

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  • @JoshLucas5 Voltage source is the one which tries to keep a constant voltage at its output if the load is varying.

    Similarly, the current source always tries to keep a constant current (to which it is designed to provide) even there is a change in load.

  • @JoshLucas5 No, they are not the same thing. A constant current source circuit will provide the same current through the load regardless of the voltage agross it. A constant current source will provide the same voltage across the load regardless of the current through it. To a point though.

  • This Professor posses a deep understanding of Analog circuit and his explanation is exquisite.

    Thank you very much !

  • hey man how comes they are not loading up? my internet is working fine as well!

  • i fell asleep at 2 min. .and woke up at the end.. w/ drool on my keyboard..hopefully he didn't see me!

  • No. One has theoretically infinite impedance (current source), while the other very low impedance (voltage source).

  • Question. What is the difference between a current source and a voltage source? I know one supplies current and one supplies voltage, but can they both conceivably be the same thing?

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