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Hi brainteaser, To answer in brief, you can: 1. Do a rectification of the AC signal and use a level detector to get a digital signal. 2. The level detector should be calibrated such that when the relay signal changes beyond a threshold (DC value corresponding to the 0.05mV AC), the level...

Soft Starter and start-delta starter are normally used to start high-inertia loads. But what exactly do you mean by soft-stop?

First, let us know which compiler you are using. Bet to give you some idea: - Most compilers come with standard libraries that make it very easy to configure and use serial communication. - The APIs are declared in corresponding header files. - If you have to use a specific API, you 'include'...

What do you mean by 'items to do with MS Java VM'? Are you saying that the three items under Tools -> Internet options -> Advanced: Microsoft VM have disappered? Can you give a screen shot of what you see? Narayanan UM umn@ieee.org asaan@lycos.com

1. As I can make out from your query, you've updated the options related to Microsoft VM in the Internet Explorer, Tools -> Internet options -> Advanced. Changing these options should not make visible difference during normal operations. The following are the options you see: i) Java console...

Electronic voting machines (EVMs) are cost effective and very much practical in the present world. Here're the most evident advantages (I'll come to the disadvantages too!): 1. No invalid votes 2. Result available almost instantaneously - based on authentication 3. EVMs are light weight...

Hi Vardhe, I'd posted a small FAQ (faq536-701) on the concept of object orientation is simple terms- hope it would give you some tips. Regds Narayanan UM umn@ieee.org asaan@lycos.com

For Excel and VBA: Simple, and well organized: http://www.engineering.usu.edu/cee/faculty/gurro/VBA&Excel.htm A bit jazzy: http://www.excel-vba.com/av-contents.htm Narayanan UM umn@ieee.org asaan@lycos.com

A bit more detail with an example: //Declare an integer variable val and initialize it int val = 0; //Get the address of the variable 'val int *pVal = &val; //Change the value of the variable val without //touching the variable name 'val' *pVal = 10; // Now, you've changed the value of val...

The best way is to check the registry for an entry of the data access object/ odbc driver. I guess you know the VC++ function calls for this. If you need to know how exactly the presence of the driver/dao is to be checked, please let me know. Regards Narayanan UM umn@ieee.org asaan@lycos.com

I've used C++ for partial control in locomotive control software. This was a real time embedded application- where memory and processor resources are limited. With C++, there're some concerns being raised with respect to industrial/real time applications. Almost all these can be effectively...

I guess you are aware of the general operation of relays. AC driven relays work almost under the same principle as dc relays, the main difference being the ratings. The main differences are: 1. Arcing on break of the relay coil supply- this is much less in AC driven relays due to the...

Please see the FAQ: "Selection and use of oscilloscopes" under this forum. You can follow the link: http://www.eng-tips.com/faq.cfm?spid=248&page=1&cfid=5385450&cftoken=88618351#6

I didn't understand what exactly you mean by 'motor hooking up to a squirrel cage'. Is it that the motor is a squirrel cage induction motor? In that case, do you have a 3-phase supply given to your motor? Please clarify this in order to discuss a solution.

Kyle,<br><br>Could you elaborate a bit more on what you're looking for? <p>Narayanan UM<br><a href=mailto:umn@ieee.org>umn@ieee.org</a><br><a href= > </a><br>

I'm not sure about the rationale in going for C++ with programmable logic controllers - could be the same reason why there are not many PLC's that support C++ programs.<br><br>Though C++ improves reusability and ease of maintenance, C++ compilers need to become more smarter to give code that's...