Post Created date
Automotive 'on' as logic signal
It would really be nice if a manufacturer came up with a simple 3-pin device that incorporated all the nifty protection bits inside. Something in a sot-23 package, input, output...
Tuesday, 17 January 2012 - 02:38
Controlling 60 RGB LEDs?
Davs Geronimo - How goes the project ? That's a very cool idea - having the numbers drilled as slots in the pcb and backlit. Any pictures or anything to show yet ?
Wednesday, 11 January 2012 - 15:55
PCB fabrication Companies: My review
Wow, sounds cool :) I remember reading about the original KITT from Knight Rider - the front scanner. Big power-hungry circuit, with full incandescent bulbs.
Friday, 6 January 2012 - 18:41
PCB fabrication Companies: My review
Heh, didn't notice that. It's D-zero-Aye - that one LED is rotated differently from all the others to fit. It's a replacement board for a center taillight. Just to add a little...
Friday, 6 January 2012 - 17:17
PCB fabrication Companies: My review
I have a board coming from iTead, sometime soon I hope. Using 8/8 spacing, 293mm x 14mm, very simple LED board. The controller will be going out to them sometime in the next...
Friday, 6 January 2012 - 16:47
Controlling 60 RGB LEDs?
Like Alank2 said, go with the full 60 leds for the hours. You will want some way to mark the hours too, either an extra led, or offset those leds or something. On mine I did it...
Tuesday, 3 January 2012 - 00:25
Smallest FET for high-side LED power control
Not silly at all. I suppose I should give a little more info on this whole thing ... It's a fairly simple controller for up to 32 LEDs. Those LEDs can be pretty high current -...
Friday, 16 December 2011 - 20:38
Smallest FET for high-side LED power control
Cool instructable - thanks. I'm actually using a TI tlc5916 as the constant-current grounding driver for each of the 8 LEDs. Then 4 high-side switches to provide 4 banks, total...
Friday, 16 December 2011 - 20:09
Smallest FET for high-side LED power control
Brain worked again. The fets were Intelligent Power Switches - mostly from International Rectifier. Expensive though :( Given the lack of board area to work in I may have to go...
Thursday, 15 December 2011 - 21:13
Smallest FET for high-side LED power control
Yup, that's well-known and pretty easy. As I said, way back when I recall a datasheet for a part which had an N-ch controlling a P-ch fet, doing it all in a single part. I just...
Wednesday, 14 December 2011 - 19:03
Smallest FET for high-side LED power control
Ross - Are you able to fully turn on the p-ch fet ? That is, with logic levels at the gate (+5V) and much higher voltages at the source pin.
Wednesday, 14 December 2011 - 15:21
Ring Clock questions...
I only had pads on the back for the edge-edge connections. Parts too, only LEDs on the front. That way the front view was nice and clean. I didn't use vias in the pads, but...
Friday, 9 December 2011 - 16:28