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Help fix ripple on my supply line! [Now with waveforms!]
200mV ripple is probably due to instability in the control loop of the switcher. What frequency is the ripple? The EMI from the unstable switcher is probably what is causing the...
Wednesday, 8 June 2011 - 22:32
Please critique hopefully my last board revision...
Schematic: Signals "MainADC" & "BatADC" are before the fuse. An incorrect input voltage may cause unwanted fire/smoke to be produced :) "Industrial usage.." - Are all...
Wednesday, 14 July 2010 - 23:06
What kind of electronics can I use on an airplane?
FYI: http://www.caa.co.uk/docs/33/CAPAP2003_03.PDF http://www.caa.co.uk/docs/33/CAP756.PDF http://www.boeing.com/commercial/aeromagazine/aero_10/interfere_story.html When I'm...
Friday, 5 February 2010 - 22:03
Trail Camera Project...
dancanada wrote:This sounds strangely similar to something the guy next to me is working on... In Canada you have to worry about your outdoor electronics dropping to ridiculously...
Friday, 23 October 2009 - 21:31
56 pin QFN SMD stencil
We get a variety of stencils from here http://solder.net/stencilquik/default.asp
Friday, 2 October 2009 - 04:57
Techniques to remove surface mounted components from boards
npat_avr; From a BGA/PCB prospective: It's the cumulative effect of all heat cycles that will damage the part and PCB. Every heat cycle after initial placement drastically erodes...
Thursday, 17 September 2009 - 17:41
Techniques to remove surface mounted components from boards
Depending on the MSL of the device being removed, you may need to pre-bake the device/PCB if you plan on using it again. Also, PCBs and components have a limited amount of heat...
Thursday, 17 September 2009 - 05:41
All right guys, last time I'm asking, I'm ordering this PCB
alank2, Some notes: - Did you do a power consumption estimate of your design? You may want to heat sink your LM7805. - Personally I might get rid of the top pour. It's really...
Tuesday, 8 September 2009 - 23:05
Placing BGA on PCB
A CM in Saskatchewan is Commutron Industries. Nice people and good quality.
Friday, 10 July 2009 - 20:52
Voltage division at high power.
I use Power One POL's for multiple designs. (10 amp version) but it seems they have a 60 amp @2.75V version. The cost of one module might be a little $$$. http://www.power-one....
Thursday, 19 February 2009 - 04:16
How to use a 2N2222 to drive 5V relay?? Pse help!
replace the coil connection with a resistor..i.e 4k7. With a DMM on the collector, check to see if the transistor is switching low when you apply 5v to the base resistor. If it...
Thursday, 5 February 2009 - 05:17
PCB with Black Soldermask
ezpcb.com
Wednesday, 4 February 2009 - 05:00

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