plz do tell me therotically how to make a ckt using a pnp
transistor to operate a 24V relay. push button,diodes,
resistors,capacitor and one pnp transistors are available.
Answer Posted / rahul
connect transistor in emitter follower configurations
means connect E terminal to gnd. connect relay on collector
apply req. biasing vlt. to transistor .
Connect diode parallel to relay to freewheel the energy
stored by the relay coil.
Also used resister to limit the current through base.
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
What is the effect of temperature on the reverse current of a p-n junction?
Define what do you understand by reverse saturation current of a diode?
What are chebushev filters? Explain?
I have Completed my diploma in Electronics in year 2009.I got low score in TOEFL.SO what should i do to get the visa...I am confident that I will get the visa..But probable chances for getting visa....and i also got I20 and paid Visa interview fees.....
What is a feedback?
Explain the difference between fixed-bias circuit & self-bias circuit?
how a choke of tubelight can be used to increse reciving power of antina?
what is voltage drop?
Hai Frds, i want to join in testing tools course, pls sugest good institute. And pls tel about Mind Q institute & phone num of Nareswar Roa sir plss, ple mail me plssssss
1 *2 1*3 *2*4 1*3*5 *2*4*6
Why do we need Interview?
Why the current in power diode varies linearly rather than exponentially with voltage?
Explain the steps involved in demodulating a signal.
Explain digital circuits and the various components used in creating them?
Although zener diode is operated in the reverse breakdown region, but it does not burn. Why?