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Results tagged with display
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user 20218
Questions about LCDs, 7-segment LEDs, E-ink displays, etc.
1
vote
Technique to drive seven segment displays with external components
You can use a bunch of NPN transistors that act as pull-downs on the 8 common lines feeding the displays. You'll still need a resistor in series with each of course. Your anode voltage is going to be …
- 473k
3
votes
Accepted
Display contact using foam - how is it working?
Can someone elaborate how this works or how this connection is named
It's an elastomeric connector of the zebra strip type: -
Image from wikipedia. Notice the little individual carbon connecting st …
- 473k
3
votes
Accepted
Is it safe to run Logic ICs at their maximum output current?
In the case of the 4094, the datasheet
(https://assets.nexperia.com/documents/data-sheet/HEF4094B.pdf) lists
the maximum input/output current at 10mA.
Let's be clear about the current you can …
- 473k
1
vote
Why does a screen resoltion is same for both a mobile phone and a 60inch TV Screen?
It's a bit like this: -
On the left my eyes see a phone screen and then, when I look to the right I see a TV screen with the same resolution. They look pretty much the same because they have the sa …
- 473k
3
votes
Accepted
4-20 mA loop powered ADC with display
Based on this, it sounds to me like the display should be low power tech like an LCD. …
- 473k
14
votes
Accepted
Turn screen on/off with an N-channel MOSFET
I was wondering, if I use an N channel MOSFET like in the scheme
below, would an issue rise
Anywhere between likely and certain you will get problems with unwanted current down the HDMI 0 volts when …
- 473k
1
vote
Accepted
What is wrong with this LCD backlight boost converter circuit
Look at the front page of the data sheet: -
The internal switch that causes the inductor to "charge up" is limited to 250 mA for the TPS61041. This means that going "balls-out", the maximum power t …
- 473k