Where should I use resistor in this ? I want to why? Can I remove them?
G Thread Starter Ghasemzadeh Joined Nov 19, 2009 4 Nov 19, 2009 #1 Where should I use resistor in this ? I want to why? Can I remove them? Attachments WW.png 2.3 KB Views: 37
StayatHomeElectronics Joined Sep 25, 2008 1,073 Nov 19, 2009 #2 Are you trying to create a dual DC supply out of an AC supply? The image is not at all readable. Is your source actually a transformer?
Are you trying to create a dual DC supply out of an AC supply? The image is not at all readable. Is your source actually a transformer?
G Thread Starter Ghasemzadeh Joined Nov 19, 2009 4 Nov 19, 2009 #3 yes,it is simple just my teacher ask me why should we use resistor in this circuit. (I mean 27ohm) input is AC 7.3rms 50HZ (sinc) Last edited: Nov 19, 2009
yes,it is simple just my teacher ask me why should we use resistor in this circuit. (I mean 27ohm) input is AC 7.3rms 50HZ (sinc)
KL7AJ Joined Nov 4, 2008 2,229 Nov 19, 2009 #4 Ghasemzadeh said: Where should I use resistor in this ? I want to why? Can I remove them? Click to expand... That's a voltage doubler circuit. The resistors are probably there to reduce the inrush current if the capacitors are fully discharged. Without knowing the value of the capacitors, it's hard to say if you really need the resistors or not. Eric
Ghasemzadeh said: Where should I use resistor in this ? I want to why? Can I remove them? Click to expand... That's a voltage doubler circuit. The resistors are probably there to reduce the inrush current if the capacitors are fully discharged. Without knowing the value of the capacitors, it's hard to say if you really need the resistors or not. Eric
StayatHomeElectronics Joined Sep 25, 2008 1,073 Nov 19, 2009 #5 Limiting the current from the supply to the capacitors was going to be my first suggestion as well.