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Why the base current is zero in B part of this question?
In the B part of this question , i am not getting why the base current is zero. Everything seems to be fine but still not getting ...
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3
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PNP Transistor with low base current
I designed a PCB with the following schematics.
simulate this circuit – Schematic created using CircuitLab
The circuit uses a MAX6369 external watchdog timer which has an open-drain output(...
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NPN driving PNP, Diode from NPN Base to PNP Collector?
I am reviewing some old 12V alarm designs that use the circuit below to activate a siren. The design has been built on PCB and I have confirmed proper operation, proving the schematic is not flawed (...
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