EEVblog

EEVblog 1688 – Constant Current Sources EXPLAINED + DEMO


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DC Constant Current sources explained and demonstrated.

Forum: https://www.eevblog.com/forum/blog/eevblog-1688-constant-current-sources-explained-demo/

Voltage and Current Source Theory: https://www.youtube.com/watch?v=AQK7RyecVW0

DC Circuit Fundamentals Playist: https://www.youtube.com/playlist?list=PLvOlSehNtuHtVLq2MDPIz82BWMIZcuwhK

00:00 – Constant Current Sources

11:08 – Practical uses of constant current sources
14:00 – Circuit examples
19:13 – TL431 Example
20:25 – LM317 CC circuit
21:42 – Low Side Source vs High Side Current Sink
24:19 – Bench examples
26:24 – Your PSU is a CC generator!
28:04 – Keithley 225 Constant Current Source
31:09 – LED strip example of Compliance Voltage

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EEVblogBy David L. Jones

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