Mfhotkowski
- Apr 28, 2014
- 1
- Joined
- Apr 28, 2014
- Messages
- 1
Hi everyone, new here.
I'm working on an electronics final project for on of my physics courses. We've made a clock from a signal counter that counts from 00:00:00 to 23:59:59, with nothing but drivers, counters, seven-segments, and lots and lots of wires, it's quite a mess, but it works, and counts fairly accurately.
We want the seven-segments to brighten as the room the clock is in gets brighter, via a photodiode (pdb-c156). With the photo-diode being a current source, we tried using a transimpendence amplifier, but the change relative to light was very slight (this is before we put it into our clock circuitry).
Long story short, we need to use a current source photo-diode to make a +1.6 V powered load to a +1.9 V.
Also, not sure if I understand the adding of two DC voltage sources.
Thanks a lot for all the help!
I'm working on an electronics final project for on of my physics courses. We've made a clock from a signal counter that counts from 00:00:00 to 23:59:59, with nothing but drivers, counters, seven-segments, and lots and lots of wires, it's quite a mess, but it works, and counts fairly accurately.
We want the seven-segments to brighten as the room the clock is in gets brighter, via a photodiode (pdb-c156). With the photo-diode being a current source, we tried using a transimpendence amplifier, but the change relative to light was very slight (this is before we put it into our clock circuitry).
Long story short, we need to use a current source photo-diode to make a +1.6 V powered load to a +1.9 V.
Also, not sure if I understand the adding of two DC voltage sources.
Thanks a lot for all the help!