how to get 48 V DC
I have ...
1. 12 volt power supply board
2. DC power supply ( max. 30 v)
3. 9 volt batteries ( 2 - not
chargeble)
Answer Posted / pratik
No need of the power supply board (conventionally it is 230V rms ac).
Connect the DC supply and two 9 volts battery in Series for the Voltage to add upto 30+9+9=48.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.
Why are the cores of large transformers built up of circular transactions ?
Earth leakage relay basic knowledge principle
Why do power lines not short out when they fall into water?
sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com
how to discharge 3 phase power factor correction capacitors
what is the prosses for getting of 33kv licence (i have completed my engineering degree & working in 33kv substation for contract basis )????
what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?
what are the analog quality input for protection function?what are minimum reqiments?
-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.
Is the theorem applicable to ac sources?
Which capacitor is preferred for high voltage and frequency?
how to check regenerative load in drived motor
how to flameproof electrical motor on the shaft?
how to prepare the technical test