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components problem
Hi there, I have a multimeter with a malfunction. There are at least 2 problems. PTC "152H" NPN transistor "8050" My questions are: 1. What does the "152H" marking code means on...
Monday, 14 October 2013 - 15:27
ALTIUM mounting holes question
Hi there, I am an ALTIUM PCB designer user. For years now, in order to place a mounting hole (let's say a screw hole) I use to place a multi-layer pad and set it's SHAPE SIZE =...
Thursday, 13 June 2013 - 05:33
ULN2803 question
Hi there, I would like to connect to the same ULN2803 ic 3 different types of relays, simultaneously: 1st type: 5Vdc relay 2nd type: 12Vdc relay 3rd type: 24Vdc relay My problem...
Wednesday, 5 June 2013 - 05:06
How to measure the Back-Up Battery Voltage
Hi there, I am using an external RTC ic connected to a micro. The RTC is been supplied by 2 separated power supplies via 2 schottky diodes. The 2 power supplies are a non-...
Wednesday, 13 March 2013 - 07:07
L293E question
Hi there, My current design uses an L293B ic to control 4 simple resistive loads as a push-pull driver. I would like to add some protection to each output line against any short...
Friday, 22 February 2013 - 06:38
Audio Wave file to HEX converter
Hi there, Does anybody knows any freeware or any other simple way to convert an audio (.wav) file to HEX data ? I' d like to convert a simple .wav file like c:\WINDOWS\Media\...
Monday, 4 February 2013 - 10:33
Push-Pull Driver ic ???
Hi there, I am searching for a push-pull driver ic with 4 or 8 output channels, with internal (protection) current limiter per channel, drive voltage at least 24Vdc and driveng...
Tuesday, 13 November 2012 - 07:38
FPGA absolute beginer question
Hey guys. I would like to start learning of programming and how to use FPGA devices. I have some simple questions. 1. Which company to sellect ? 2. Which tool to sellect (I am an...
Tuesday, 30 October 2012 - 12:11
Need Help!!! Intersil HIP4081 problem
Hi guys, I have recently developed an 130W motor control board. We seem to be facing a serious problem with HIP4081A driver failure which we can not explain. Generally the IC...
Friday, 22 June 2012 - 06:06
Metal case for Ballast
Hi there, I am searching for any manufacturer in European Union are that produces metal cases for electronic ballasts. I found too many manufacturers in China and India, but I...
Monday, 6 February 2012 - 09:57
Question about Labview
Hi there, We need to buy a tool in order to produce any control application for our HW products. We found that Labview has a good price and provides many feature that meet our...
Wednesday, 1 February 2012 - 08:40
Switching from ATmega128 to ATmega64
Dear guys, In a new design I am using the ATmega128 micro. My flash.HEX code is near 30KB, I am also not using more than 20 bytes of internal EEPROM and not more than 1050 bytes...
Tuesday, 24 January 2012 - 07:25

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