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Q&A

Posts tagged transistor-switch

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Q&A Driving LED with NPN transistor from I/O pin

I'm trying to understand a circuit for driving a LED found on a board I purchased. Below is the circuit driven by an I/O pin (HS2) of a small 3.3V processor. The HS2 pin is driven by the I/O wi...

4 answers  ·  posted 4y ago by eric‭  ·  last activity 6mo ago by TonyStewart‭

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Q&A Power switches and automotive load dump, unclamped

Power switches used in automotive are usually rated to withstand clamped load dump events, of the 35 - 40 V peak variety. AFAICT there are two main clamping mechanisms - first one for the logic par...

2 answers  ·  posted 8mo ago by kellogs‭  ·  last activity 8mo ago by TonyStewart‭

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Q&A What is the difference between rise/fall time and Turn-On/off Delay Time?

Hi guys so recently i was looking for a mosfet and a gate drivers and between a lot of their specification the rise/fall time and Turn-On/off Delay Time sometime it called propagation. My question...

2 answers  ·  posted 1y ago by deleted user  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A Is it possible for one transistor to switch between two loads?

The output collector-emitter part of a transistor can be thought of as a 2-terminal SPST switch controlled by the input base-emitter voltage or base current. So this transistor switch can control o...

3 answers  ·  posted 3y ago by Circuit fantasist‭  ·  last activity 3y ago by Circuit fantasist‭