Post Created date
DC step-up converter - any experience?
We've used LTC1871, it's a very nice part but at $5.37 in single quantity from digikey, it might be a little more expensive than what you want.
Monday, 17 January 2011 - 05:04
Led driver
I've used the LM3404 before, it should handle this with ease.
Thursday, 13 January 2011 - 19:19
Small 9V -> 3.3V switching regulator, any recommendations
If you just need a single switching regulator and you don't want to build one yourself, just buy one of these. I have one and they are great. If you want to design one yourself,...
Friday, 23 October 2009 - 05:45
My Great Project
That looks awesome, very professional. Are you going to sell them?
Thursday, 22 October 2009 - 06:03
Prototype PCB Component Assembly
Sometimes the best way is to look around locally. Some assembly places will do small jobs like that for a reasonable price. Sometimes you can make buddies with someone who will do...
Wednesday, 21 October 2009 - 06:27
Choosing Correct PWM Frequency For DC Motor
Well, there are different ways of applying PWM if that is what you're asking. Scenario 1: pull enable high, and one of the input lines high. Apply PWM to the other input. In this...
Thursday, 19 June 2008 - 16:08
Choosing Correct PWM Frequency For DC Motor
Lee I think that is correct. I have only seen the trick of adding a filter done on the bench more as an experiment, so I'm sure there are trade-offs if it were to be done on a...
Wednesday, 18 June 2008 - 20:48
Choosing Correct PWM Frequency For DC Motor
Experiment with frequencies in the 2kHz to 40kHz range. The criteria are the inductance and resistance values of the motor, the heat dissipation of the switching device, and the...
Wednesday, 18 June 2008 - 19:56
So Simple, So Fiendish
I had an idea for a device kind of like that. I wanted to hide one of those aerosol cold sprays under the target's desk at work, and use a simple IR sensor to detect when they...
Friday, 23 May 2008 - 00:48
Custom made low Voltage ultra low ESR Capacitor
Jesus H. What kind of device could possibly need 10,000 amps at 10 V?
Wednesday, 14 May 2008 - 05:00
Complete AVR based VGA game system up and running!
The fast interpreted language is a cool idea Brad. Looking back on some of the older console systems (Turbo Grafx, SNES, etc) their designs were pretty complicated...! I often...
Sunday, 6 April 2008 - 02:01
Complete AVR based VGA game system up and running!
Assuming I'm understanding everything correctly, someone could come along and replace the sync AVR with something designed to drive an LCD (like this for example) and voila, you...
Saturday, 5 April 2008 - 21:57