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How to test transitor is functioning

beenthere

beenthere

Joined Apr 20, 2004
15,819
Hi,

In circuit, look at the collector voltage. Assuming it's set up as a grounded emitter, the collector voltage should be about the same as Vcc when off, and should be at ground potential when on.

Out of circuit, use a meter to see if the p-n junctions B to E and B to C are good, plus confirm that there is no conduction E to C.
 
E

Thread Starter

eggtree

Joined Nov 28, 2006
27
beenthere said:
Hi,

In circuit, look at the collector voltage. Assuming it's set up as a grounded emitter, In circuit, look at the collector voltage. Assuming it's set up as a grounded emitter, the collector voltage should be about the same as Vcc when off, and should be at ground potential when on.

Out of circuit, use a meter to see if the p-n junctions B to E and B to C are good, plus confirm that there is no conduction E to C.
Click to expand...
Hi,

Thanks for your quick response.
 
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