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Current limiting is the practice in electrical or electronic circuits of imposing an upper limit on the current that may be delivered to a load with the purpose of protecting the circuit generating or transmitting the current from harmful effects due to a short-circuit or similar problem in the load.

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1 answer
66 views

Current limiting stopped working on a power supply

I have an old power supply (Tesla BS554) and all of a sudden the adjustable current limiter stopped working. The supply is designed to limit the output current up to 1 A, but I am measuring short-circ …
Atropin's user avatar
  • 97
4 votes
1 answer
767 views

Why is this circuit not limiting current?

This is a 15V voltage regulator from Art of Electronics (page 694), and it is supposed to limit the output current to 1A. However, when driving load impedance (R7) low enough, I am getting much higher …
Atropin's user avatar
  • 97