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Topic: PNP Transistor not 'shutting off' when increasing voltage. (Read 2030 times) previous topic - next topic

dhenry

Quote
My initial setup was:
...
What i understood you meant was:


They will never work.


Quote
My initial setup was:
...
What i understood you meant was:


They will never work.



Could you explain what you mean by that..?

Grumpy_Mike

Quote
What i understood you meant was:

Yes I thought you were not getting it.
Try the attached diagram.

As for dhenery, sorry about him but he has poped up recently and is giving a lot of bad advice.

dhenry

To switch off a bjt, you have to bring its base to within 0.6v of its emitter. That means your pnp's base has to be least 11.4v or more.

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