10/30/50/100W LED application driver (UC3843A)
The operation of power LEDs calls for constant current source for higher performance. (> = 1A) As an example, of operating a 30W was shown LED to a modified Step-Up Converter (boost) here.
Author: 360customs
Upper surface roughness of a 250 GB platters
It scans a 250 GB platter with the laser scanner, the following picture emerges. The "Roughness" or amplitude is in the range -0 1µm. However, has dust according to definition a particle size of 2.5 10 µm, thus 25-100 is greater. This is one reason, among others...
Igel 3200 LX thin client (WinNet G260 v1. 0) starting problems
Who a hedgehog 3200 LX thin client or identical device (for example, CA9, various HP Neoware) with the motherboard-code "WinNet G260 v1. 0 ' owns, may determine that this after connecting the power plug either at all or dirty boots. This is a...
Transistor Tester/component testers the polymath
Conceived and designed by Markus Frejek, every hobbyist knows well this problem: one expands a transistor out of a unit or extracting a Pocket from the Junk box. If the designation is to identify (and one is known), everything is...
MAX9708/MAX9709 25W/50W class D - version 3
The third edition of the popular MAX9709 25/50W class D amplifier is ready.
