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Hi gurus,
Anybody got any ASIC to recommend with the following functions :
1. with 1x USB interface (preferably 2.0)
2. able to interface with hardisk semelessly (preferably with IDE controller)
3. Ethernet interface 100Mbps
4. A few GPIO for reset button and a probably 3~4 for LED indication...
Re: high current sensing
So much have been talked about high current sense. Is there anyway to sense a minimum of 10mA to a max 5A DC current ?
I have looked at those Hall Effect Current Sensors from Allegro and realised that they could only sense a minimum of 0.3% of their rated current.
For...
how to detect non-rechargeable batteries
Hi,
How do we actually detect rechargeable batteries from NON-rechargeable batteries ?
My focus will be AA size batteries (NiMH, NiCD, Enegizer Photo Lithium and Enegizer Alkaline).
In order to implement a dT/dt fast charge termination, where would...
Re: MOSFETS Basic
Hi All,
thanks for the reply.
By connecting a resistor between the Gate & Source for a P-Channel to prevent accidental switching, so how do we size that resistor ?
Based on some calculation or simply just a rule of thumb ?
Thanks
Cheers,
Re: MOSFETS Basic
Hi All,
Found some good links for MOSFETS :
Fairchild - Introduction to Power MSOFETS & Applications
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Fairchild - MOSFETs Basic
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International Rectifier - MOSFET
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Motorola - Interfacing Power MOSFETs to...
Re: MOSFETS Basic
Thanks to E-Design & Hughes.
Btw, does anybody happen to know of any MOSFET that have the lowest ON resistance (RDS ON) for about 10V & less than 3A application (preferably SOT-23 package) ?
Thanks
Cheers,
MOSFETS Basic
Hi,
Could anybody advise me on MOSFET driving circuit ?
Based on datasheet, it is true that the higher the VGS for a N-Channel MOSFET will result in a lower RDS(on) ?
And if that's the case, isn't it will be much easier to operate a P-Channel MOSFET than N-Channel since it only...
switching 3v regulator
Hi,
I'm not too sure how much budget you have. Currently, I'm using less than a US$1 solution (mass production) from ON Semiconductor.
https://www.onsemi.com/site/products/summary/0,4450,NCP1450A,00.html
Take note that the efficiency is not that great as compared with...
Guess I may have found some answers to my question :)
See the following links :
http://www.xicor.com/pdf_files/an164.pdf
http://www.linear.com/pdf/an53.pdf
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http://www.lovoltech.com/pdf/AN200.pdf
Thanks for those who...
common source mosfet battery
Hi,
I have encountered a circuit whereby I could not understand how does it suppose to work.
There are 2 similar P-Channel MOSFET (Vishay Si1413) which I shall termed it as Q12 & Q15.
Both MOSFET have their gate connected to a single control point which means if...
Hi,
Anybody happen to be using TMS320DM310 (ARM9 + C54) core from Texas Instrument ?
Can that ASIC bootup directly from NAND flash ?
Btw, does anybody has any programming manual or user guide for this ASIC core to share ?
Thanks
Cheers,
Hi,
Whenever a datasheet specs state the IDC of an inductor to be say 1.5A without saturation.
What will happen if the circuit current is more than 1.5A (say 2A) ? Will the inductor get saturated ?
And when the inductor get saturated, what is the electrical characteristic of that saturated...
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