current source transformation

[bhuvanesh]

i heard some lectures there they say that current in series with thevinen resistor.but it actually in parallel.Thank you in advance

 

[Arouse1973]

Any circuit containing just resistances can be converted into an equivalent Thevenin resistance. Don't know what you mean in parallel. In your posts you need to give more details. We can't read minds.

 

[bhuvanesh]

see the img.now say does the thevenin current is in parallel or series with resistor.actually if you see the subtitle.u can realize they says that current is parallel

 

[davenn]

neither image is showing for me
can you post the image on this site


Dave

 

[bhuvanesh]

http://postimg.org/image/9bw444ahf/full/

 

[(*steve*)]

The equivalence part of that is saying that a current source in parallel with a resistance is equivalent to a voltage source in series with a resistance.

For analysis purposes, any circuit that is comprised of voltage and current sources and resistors can be simplified to it's Thevennin equivalent. The same is true of a Norton equivalent.

 

[bhuvanesh]

i want to know why we are converting voltage source to current source.whats is the need to that(does converting is only for simplification purpose)

 

[Electrobrains]

It can be very practical.
For instance if you are dimensioning a circuit with components that are specified for a fixed current (eg. LEDs with a certain luminance at a certain current), but in the end you want to use a normal, cheap (voltage regulated) power supply.