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
define drain resistance
What is the formula for non inverting amplifier?
What do you understand by ammeter shunt?
How many channels are there in 2mb pulse code modulation?
What is meant by pwm control in dc chopper?
What is noise in reference to electronic circuits?
Why is schottky diode called hot-carrier diode?
Define cut off frequency?
The output of an AM detector goes directly to the A IF amplifier B Mixer C Audio Amplifier D Loudspeaker
What are the applications of a csi?
Hi, Can any1 pl send me the question pattern of HPCL exam for the ELECTRONICS stream.pl send it to meerasowmi@gmail.com.hope to hear frm u very soon....
Calculator battery power goes down to 1V from 1.6V in 15 days... What could be the reason?
Define what is engineering?
What is the advantages of using c band for satellite communication?
What is meant by pmdc?