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Few more things:
1. Never heard of "incadescent" UV light,
they are usually either Deuterium lamps
as in UV spectrometers, or fluorescent
UV that do not have the phosphorus to
convert/filter the UV to visible, some
Xenon lamps have some higher end UV,
and there is a cheap 4 watt incadescent...
As helping of the fellow EE is the point,
not the points, here we go :
1. Former Burr-Brown, now TI subsidiary, has
some NICE app-notes and op-amps and even
specific photodiode amps suitable for variety
of UV-photodiode amplification, which usually
need quite high-gain.
2. Infineon, former...
Have schematic o old ElectroForesis PSUs,
repared few such few years back, just can not remember where have put the schematics
of the 2 different models that repaired.
B U might try to seek for LKB or other
electroforesis power supply schemas, they
have great 1-4 kilovolt range designs
with up...
Had the same problem when "designed" a 3-phase bldc motor controller + amp with 629 back in late 80s, there was that constant pwm-noise due to the way how 629 dig-filter pll-pwm's and eventually was told by more experienced to add series L, this really reduced both the noise, and improved the...
Possibly useful lnk related to the
PDIUSB device :
**broken link removed**
FTDI EU dealr S.O.S. electronics Italy.
PDIUSB may appeal for larger volumes, FTDI for quickier lower volume dls.FTDI initially seems easier sw-wise.
pdiuab
"which is the easiest way to build an usb interface? I mean where can i find an usb chip like usbn9602 from national in Europe"
FTDI chips are really easy and they supplement free no-royalty drivers.
Pls check https://www.ftdichip.com/
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