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Using high speed PWM to create a DC-DC stepdown regulator
Hi, I need a DC-Dc switching stepdown converter, whose output voltage can be controlled by a microcontroller. I am not sure if there are cheap off the shelf switching ICs that can...
Thursday, 7 May 2009 - 05:25
measureing IC temperature
Hi, I need to measure the temperature of an a few ICs in my design to make sure it does not overheat when operating in a confined space. I have a cheap handheld IR temperature gun...
Thursday, 7 May 2009 - 05:07
Putting multiple projects into 1 PCB
I am an eagle user. I have 5 different projects that I want to be merged into 1 set of gerber files so that I can reduce pcb fab costs. I assume that the best way to do this is on...
Friday, 1 May 2009 - 00:53
Pluggable screw terminal, 2.54mm pitch
I am looking for something similar to this, http://www.modtronix.com/popup_i... but the pitch needs to be 2.54mm (0.1"), looking for 10 position and a 12 position ones. I have...
Friday, 24 April 2009 - 02:52
Right angled male header
Hi, I am looking right angled male molex connectors, 2.54 mm pitch. They are the ones shown here, http://www.futurlec.com/ConnPolH... I have found similar ones on mouser and...
Friday, 17 April 2009 - 01:05
quad N channel FET for 7 seg LED multiplexing
Hi, I am looking for a quad N-ch FET/BJT IC for the purpose of multiplexing 4 7seg LED digits. Max current should be much less than 100ma. I am looking to keep costs low, looking...
Wednesday, 18 March 2009 - 18:35
step up converter, 10-16v input, ~20v output, low ma
Hi all, I need a cheap and simple way to step up voltage that is 10-16v to about 18-20v. I do not need to drive any load, maybe 10 ma if that much. Anyone have suggestions on an...
Tuesday, 17 March 2009 - 03:02
Ultrasonic cleaner to get rid of flux?
Can ultrasonic water baths be used to clean flux off a pcb with components on them? If so, how well do then clean? How long does it take to clean? REgards, Alan To
Thursday, 5 February 2009 - 04:42
6 Mil Spacing, Assembly question.
I have a PCB that has 6 mil spacing between PAD to Via, Via to Via. I plan on getting the board assembled at an assembly house. Generally is 6 mil ok for spacing? Regards, Alan To
Thursday, 15 January 2009 - 15:41
Through hole pin test clips
Hi, I need some type of pin, clips, etc... that can securely fit into a through-hole pad and that can be easily connected and disconnected. I need to supply my devices with power...
Thursday, 15 January 2009 - 15:28
PCB Cutouts, mechanical layer?
Hi, I need the corners of my pcb cut out when they are being manufactured. I talked to the pcb company and they told me to draw the cutouts on the "mechanical layer" I use eagle...
Friday, 26 December 2008 - 21:35
Advice on high quality DMM
My first question is, are benchtop DMMs generally superior to hand held DMMs? If I just want to measure a constant DC voltage, is a Tektronik Oscilloscope just as good as say a...
Sunday, 21 December 2008 - 04:38