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Low voltage detector
Hi, I have a AVR supply from a 12v battry (the AVR is on a 5v regulator). I need a very simple solution to close a NPN transistor when the voltage drop lower than 11v. I can...
Wednesday, 11 July 2007 - 02:20
New project on my web site www.microsyl.com
Hi, Just to let you know that I just put on my web site www.microsyl.com my last project "Mood Light Kitchen LED Lighting.
Monday, 9 July 2007 - 17:06
Running AVR with LED at 1amp
Hi, My question could be strange, I'm wondering if it's possible to run a AVR with a load of 1amp on the 110vac without any transformer, the circuit must be very small. Thanks...
Wednesday, 27 June 2007 - 14:34
Function pointer with arguments
Hi, I have some code that use function pointer with no argument, but I need to pass one argument. Now it's look like TaskRegister(&KeyScan,T100MS); but now I want...
Thursday, 31 May 2007 - 19:00
How serial port make data recovery
Hi, I need to wrote a serial protocol who is not too far from a standard UART, my question is how a serial port make data recovery when he lost some bit and need to find the...
Wednesday, 28 February 2007 - 03:53
Fluo compact lamp dimmer?
Hi, I'm wondering is it's doable to dimme a fluo compact lamp? At this time 20 avr control all my light at home, but I can't use the fluo lamp. Any idea will be welcome
Monday, 12 February 2007 - 22:20
Op-Amp question about linearity
Hi, I have a problem with my MCU interface. I use a differential op-amp amplifier and I wondering if the use of 5% resistor could be the problem of my non linearity problem?...
Friday, 2 February 2007 - 03:10
Protect AVR input from over/under voltage
Hi, I have a opamp powered at +12 and -12 the ouput will go from 0 to 5v feeded to the AVR A/D. In some condition the opamp could ouput more then 5v or less than 0v. My...
Friday, 26 January 2007 - 03:17
Messuring current with Zetex ZMC10
Hi, Did someone have use the Zetex ZMC10 to measure current? I'm looking for some schematic to help me, the ZMC10 is the IC with the smallest datasheet you can fine 2 pages...
Monday, 22 January 2007 - 21:49
New project on my web site www.microsyl.com
Hi, Just to let you know that I have publish new projects on my web site. www.microsyl.com
Tuesday, 16 January 2007 - 03:43
paralleling mosfet
Hi, I'm working on a project, I have a mosfet has regulator (IRF640), I have a lot of volt to drop and it's give 90watt of heat on my big heatsink but mosfet case goes up to...
Wednesday, 3 January 2007 - 20:03
Negative current sense with ZXCT1009?
Hi, I monitor current via a ZXCT1009 on the +15v rail and it's work fine. Now I have to monitor the current on the negative rail -15v, I don't know realy what to do or not to...
Wednesday, 20 December 2006 - 03:35