I have a quiz question. I have p-channel and n-channel bipolar transistor, resistor, a LED, 2 tact push buttons, power source.
Need to design a circuit when i press the On button once and release, the LED will turn on. When I press the Off button once and release the LED will turn off?
Any idea? Please help?
I have a quiz question. I have p-channel and n-channel bipolar transistor, resistor, a LED, 2 tact push buttons, power source.
Need to design a circuit when i press the On button once and release, the LED will turn on. When I press the Off button once and release the LED will turn off?
Any idea? Please help?
Thanks for your help. However, it looks like this will work if the keys are permenantly switch on/off. if we use the push button tact STSP momentary switch. It fails to work? Please advise or any other comments??
Thanks for your help. However, it looks like this will work if the keys are permenantly switch on/off. if we use the push button tact STSP momentary switch. It fails to work? Please advise or any other comments??
The quiz question is to use the tact push button STSP, when press once and release, so only one pulse generated. How to design this? like a state machine???
Flip flip like?? any idea???
Circuit suggested by Stefano does exactly that: one short positive pulse on the START and the LED is ON, one short pulse on the STOP and the LED goes OFF ..