Half-right.
It's actually a voltage doubler circuit, which is equivalent to "two halfwave rectifiers in series". In the textbooks I looked at, the circuit is almost always introduced in the diode section, just after full-wave bridge rectifiers. No idea why he'd want to series two caps on each "side' though, that leads to smaller capacitance as you've mentioned.

I didn't know a geek channel existed at LYN.

Lets type all in caps. I'll start. 1uF.

Wow.. a computer engineering thread. cool..

hello bros! me UTM grad Comp. Eng. 3 yrs ago

pspice and matlab also 'rusty' already..

A final year student here. Will be graduating soon enough(hopefully). Anyway, any of u guys have any links to Image processing C++ source codes and information. Stucked with my FYP(final year project). hehe.

i am curious about the clock speed of every processor

i know the processor speed is determined by the processor multiplier times the system front side bus.

but my question here is, how is the multiplier of the processor be set? is it set internally in the processor die, or set by the capacitor and resistor value on the processor ( like the old version of amd athlon, where the pencil trick work). what is different inside the processor core of a 2.0GHz P4 and a 3.0GHz P4 of the same architecture, same FSB, same socket design?

If we knew the complete architecture of those chips, everyone could be producing the same processors.

There are several possibilities for the difference. Some of them may be processing techniques, others may be the entire core itself. It all depends on the design and processing technique used for these processors.

Some of them could come from the same wafer but cannot pass certain tests under rated speed so they usually down clock the processor and sell them off cheaper. A good example would be AMD Thoroughbred chips whereby their immense overclockability was because these chips were actually Athlon XP 2800+ or 3000+ but couldn't keep to spec under those speeds so they were sold as XP 1700+ or 1800+

The multipliers are set by a fuse, (they actually burn it in after they bin it for different speeds) AFAIK there is no way to unfuse the fuse and since there is a heat spreader on the die i don't think the pencil trick will work. (the pencil lead provides another path for the current to flow so it's similar to the fuse being there)

Normal secondary student here,
I would like to ask which type of course u guyz are taking.
BTW, does this got to with Computer Engineering or Electronic Engineering??

Plz correct me.
Thx.

opps... software engineering student here.. a bit late to register here as computer engineering member heh?

EvilHomura: Computer Engineering is a field in Electronics Engineering (Well at least in some colleges and universities).

My degree reads B.Eng (Hons) Electronics. Well according to my dean, he/the uni did this, so that we are not "locked" to a particular field after we graduate. (in a sense he was right, since i am a tele major working for a computer company and i am not using any of the Maxwell's Equation at all (fundamental equations for all Electromagnetic calculations. it's like Ohm's law for Electrical calculation and newton's Law for all classical physics calculations)

Welcome to the group.

Boxsystem, maybe u can share the knowledge about image processing here

image processing, sounds like a final year project a few groups in my college that are doing.......don't tell you me are one of them

This post has been edited by X10A Freedom: Dec 31 2005, 12:11 AM

Hahahaha...never knew that LYN will have an engineering student topic. I was an Electronics Engineering student (majoring in Computer) in MMU malacca campus. Graduated last year.

my cousin will take that course later...

so how izzit???

izzit cool???

Wahaha, surprised myself LYN has a geek thread!
Am reading Computer Science in Imperial College London now, by any chance I can work part time in Low Yat when I get back to Msia?

Miss cheap priced computer stuff, be proud Malaysians! LOL.

Well...from my opinion...the course is good since i m interested in it...good future and salary for engineers as job opportunities are alot, especially in Penang and Kulim area with many MNC setting up their fac...MMU has all the facilities you can get...as for lecturers, well, u have good ones and u have bad ones...believe me when i tell u that most studies have to do by urself rather than listening to lectures in classroom...first few years will be tough but after that it will get easier after you get used to it...Hope your cousin will like it

better be,,, mmu is so $$$$$

hahaha...well...that's why it is call MMU = Money Making University

MY god LOL!

got ptptipoo what