Interested to Buy Any Domain ? << Click Here >> for more details...
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.
- 3 Answers
- 7194 Views
- Siemens, I also Faced
- E-Mail Answers
Answer Posted / chandrajith o
circuit the pnp transistor in common collector mode.emitter directly shorted to Vcc ,use appropriate resistors to provide the potential divider bias for the base.connect the collector to gnd through the series combination of appropriate resistor,relay and pushbutton.when pushbutton is switched on ,the collector current which is approximately same as the emitter current flows,ther by the relay will be energised.use the diode parallel to relay to overcome the freewheeling effect.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What are the operation of igbt?
Define cut-in voltage of a p-n junction diode?
why is a two-input nand gate called universal gate?
Explain what is the purpose of the package around a microprocessor silicon die?
How the earting for portable DG set is done?
What is Cycling Frequency Hopping?
What is intrinsic semiconductor ?
1) is external oscillator XTAL1 &XTAL2 connection must needed ? 2) shall we proceed without oscillator for simple logialoutput
What is meant by cyclo-converter?
which modulation is better in terms of power and bandwidth angle or amplitude modulation ???
what is the function of solid state relay (SSR)
What is the basis for classifying a material as a conductor, semiconductor, or a dielectric? Define what is the conductivity of perfect dielectric?
How is cad used with electronics? Give example.
what is asynchronous data transfer???
Please provide details of the following standards :rs-23-c 802.3 x.25 802.11?
