Electronics > Projects, Designs, and Technical Stuff
uSupply Custom LCD
ZeTeX:
--- Quote from: EEVblog on October 28, 2017, 10:32:04 pm ---
--- Quote from: VEGETA on October 26, 2017, 10:42:07 am ---Did you change the main power regulating circuit (LT3080/81 + op-amp loops)? or the changes are done in other places?
--- End quote ---
Yes, the LT3080 had protection and other issues.
--- End quote ---
When are we expected to get a new video / updated schematic?
Mr. Scram:
--- Quote from: aandrew on October 29, 2017, 05:06:37 pm ---I am not a fan of LCDs for instrumentation. Glare, low contrast ratio, low resolution.
Give me graphical OLED or VFD for high end, segmented VFD for mid and plain old regular 7 segment LEDs and illuminated indicators (think icons with an LED behind to light up when they're active) for low end.
graphical LCDs and segmented LCDs are actually a "feature" point that turn me off of selecting an instrument.
--- End quote ---
Both VFD and OLED aren't as durable as LCD. They tend to wear out or become unobtainable. Longevity is important in products like these, much more than it is in the mobile phone or general consumer markets.
VEGETA:
--- Quote from: Mr. Scram on October 29, 2017, 09:07:23 pm ---
--- Quote from: aandrew on October 29, 2017, 05:06:37 pm ---I am not a fan of LCDs for instrumentation. Glare, low contrast ratio, low resolution.
Give me graphical OLED or VFD for high end, segmented VFD for mid and plain old regular 7 segment LEDs and illuminated indicators (think icons with an LED behind to light up when they're active) for low end.
graphical LCDs and segmented LCDs are actually a "feature" point that turn me off of selecting an instrument.
--- End quote ---
Both VFD and OLED aren't as durable as LCD. They tend to wear out or become unobtainable. Longevity is important in products like these, much more than it is in the mobile phone or general consumer markets.
--- End quote ---
What about professional bench PSU? what do they use?
I aid your point of longevity but I don't think TFTs, OLEDs, and others are bad. It all depends on your estimated lifespan of the product until it becomes in its late age.
I am still a fan of high quality (and small) touch TFTs with lots of menus and options, EEZ-supply is the way to go and the model to follow here. You can still have your classical rotary encoder though.
Quick important question: what is the price dave wants to tag to this PSU? this answers a lot.
Mr. Scram:
--- Quote from: VEGETA on October 29, 2017, 09:14:59 pm ---What about professional bench PSU? what do they use?
I aid your point of longevity but I don't think TFTs, OLEDs, and others are bad. It all depends on your estimated lifespan of the product until it becomes in its late age.
I am still a fan of high quality (and small) touch TFTs with lots of menus and options, EEZ-supply is the way to go and the model to follow here. You can still have your classical rotary encoder though.
Quick important question: what is the price dave wants to tag to this PSU? this answers a lot.
--- End quote ---
What about professional test gear? Some have used VFD in the past, some have used OLED, and both turn out to be less durable than simpler LED and LCD solutions. You could also argue that you don't care about the gear working over 15 or 20 years, which isn't unfair.
It should be noted that OLED may have had some issues because the technology was new back then and not quite as developed as it is now.
mikeselectricstuff:
A PSU has simple and mostly obvious UI requirements.
Almost nobody will be interested in hacking it unless the firmware actively sucks.
A custom LCD is almost certainly going to be the cheapest (display+drive hardware+CPU resources to drive it) option if the volumes are there. It also allows more flexibility of shape/size than an off-the-shelf LCD, and therefore more flexibility of panel layout, for optimum space usage of an off-the-shelf case.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version