Recent content by deakie

I think you will find these two sites helpful and may even find links to people who are doing a similar thing... no point reinventing the wheel if its been done... http://www.engineersedge.com/motors/motor_menu.shtml http://www.otherpower.com/otherpower_wind_tips.html there are also a...

Very interesting... f95toli charge must have played a part in what was a cummulative effect... i had immediately thought that this was problably a test cable off the line and some kind of insulation test was done... then i read what you said... each of those conditions are ripe for...

Thats exactly right...and don't ber surprised if you find one that goes to the positive supply... i came across the profiles for opamp input offsets the other day and it showed that a batch will typically have a range which looks almost gaussian in profile. the max voltage offset is what is...

Thinking about this, i wondered the following...could be worth the design... arrange a variable regulator to have a feedback circuit to the adjust pin. Sample the input voltage and do a compare against the max voltage and use it to control a current mirror on the adjust pin. this way, there...

Solid state electronic devices prentice hall ben g streetman has a proper treatment of the short channel effects and what happens when the channels are reduced. basically, both issues are interlinked and is a bit long winded for here...

heres a good one...for audio... normally we 'hear' over the range 20 to 20kHz when young and as we grow older, the higher frequency responses fall off. A similar thing occurs with partial deafness...the person only hears a part of the spectrum... in medicine, a chochlear implant is...

For a start, most pmt's will give a negative output. secondly, you are using a monochromator to view the light signal...so in effect you are allowing nearly all of your laser through unto the pmt... the rated wattage of your laser is 200mW and its seeing nearly all of it with the exception of...

So he would need a circuit that chops the dc supply from the battery to a cycle consistent with his country's supply frequency...50 or 60 hz...a chopper circuit should do it. For simplicity, could use a power transistor fed by a wein bridge oscillator...for a more sine output...

and considering that the impedance is zero, then the voltage would be instant and the cap becomes a perfect source on the otherside... so apart from being a good storage unit...it has no use as a capacitor otherwise... could do without it in the circuit to tell the truth...:biggrin:

and the second question that the student had... perfect energy storage unit...could problably store loads of charge...

for those frequencies that copper won't be able to manage, they will have to introduce exotic materials and designs to cope.

Yes...i agree about the maths but just saying what is obvious from the table only... Have you tried sticking the truth table into the simulator if there is one in the software? really, with the last three lines being incorrect as a two's complement, its highly likely then that negative...

The data line is the carry for when you do the sum at the end... Two's complement works by doing a logic 'not' on each bit and then adding '1' to the sum. You'll need the carry bit, as it's two four bit words. I think the fifth bit (A4) in the second array is to show its a negative or...

Thats why they have re-processing...to reuse the waste... research is continuing into how they can further utilise waste for generation...problem is, most waste are products that do not give off the right stuff... they are hoping to find ways that will allow them to effectively speed up the...

Yeah...thats it exactly. No worries and you're welcome.