Post Created date
Cylindrical enclosures
You could go looking for some standard extruded profiles that suit your needs and have them cut to the length you require then make the end caps. Some profiles might even have...
Friday, 18 September 2009 - 01:59
Glue for FR4 boards
As john k says, some adhesives are commonly used for gluing smt components to fr4 prior to wave soldering. Often this glue needs to be cured in a reflow oven before wave...
Tuesday, 28 July 2009 - 07:01
Can vias short to components' bottom side?
Yeah, I've learnt my lesson there also for some Aluminum heat sinks on to220 components shorting to a top side gnd plane. I'd certainly avoid it. When you do mass production of...
Monday, 20 July 2009 - 04:45
Circuit Improvements for driving LEDs from 230VAC?
The viper in buck mode only requires an inductor, not a transformer. http://www.st.com/stonline/products/literature/bd/15041.pdf
Tuesday, 14 July 2009 - 23:08
Circuit Improvements for driving LEDs from 230VAC?
I would look at running a ST viper switching IC in buck configuration. Alternatively I'm sure Power Intergrations offer some solutions. oddbudman
Tuesday, 14 July 2009 - 12:50
Li-ion Charger, TI BQ2057C, disabling temp sensor?
Quote:temperature sense input Input for an external battery-temperature monitoring circuit. Connecting this input to VCC/2 disables this feature. So use 2 equal value resistors....
Sunday, 12 July 2009 - 22:59
Voltage Recorder
You're right rberger, thats quite accurate. pulled that figure from out of thin air. Lets drop that accuracy then to 20mV resolution over 10V. Looking for portable solution so...
Wednesday, 8 July 2009 - 14:22
Voltage Recorder
nice bit of kit that jayjay. Only problem is this spec Quote: 'FULL appears if no room is available in the saved readings memory (after 100 saves)'. only 100pc/shot
Wednesday, 8 July 2009 - 13:22
make 13 volt from Usb
since you requested in large blue text i would suggest you use the 34063 type. oddbudman
Monday, 15 June 2009 - 06:25
looking for 20 pin molex connector, same as PC ATX connector
I like these guys http://www.hxdy.com/ oddbudman
Friday, 12 June 2009 - 03:19
relay project; how to power avr from 120V mains
Why not use a high voltage non-isolated buck converter? That way you will have good efficiency and enough current for even a power hungry relay coil. http://us.st.com/stonline/...
Tuesday, 9 June 2009 - 02:20
How bad is automotive environment?
Further on Jim's comments - I often find myself brushing up on overvoltage protection on this page. It's a good read I think http://www.maxim-ic.com/appnotes.cfm/an_pk/760...
Tuesday, 9 June 2009 - 02:09

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