5V Short-Circuit Protection.

548

11:50:22

Short Circuit Protection with a latch transistor tied to the output of a dc voltage bus. The circuit protects against shorts happening to the bus conected to a switch (pnp transistor). When its base is zero, it opens and protects the supply voltage. A button is used to restart the circuit. Works also with a P Mosfet for higher voltage supplies for less loss.

Dont push the button during a short or it breaks :)))

published 8 years ago

dmitry4ec

8 years ago

Hi, Markkus. May I ask you a naive question? If I have a voltage source with voltage given by u(t)=Acos(2*pi*F*t+phi) I simulate it with AC element on the panel with corresponding amp, freq and phase. But how do I simulate a current source given by i(t)=Acos(2*pi*F*t+phi)? I see only a direct current source... Thank you

hurz

8 years ago

@dmitry4ec, with a VoltageControledCurrentSource VCCS for example http://everycircuit.com/circuit/5754393754599424

dmitry4ec

8 years ago

@hurz, thank you for the answer. I'm a newbie at this and not so familiar with controlled sources. I added just one VCCS to ask you if it's right. http://everycircuit.com/circuit/5965816740970496 So am I totally lost? And one more thing, following your answer would it be correct to add VCVS for branches with voltage source?

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