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0
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1answer
20 views

Transistor as Oscillator

While I was studying the use of Transistor as an Oscillator from my Fundamentals Of Physics By Halliday, Resnick and Walker , I faced several confusions. My book says that when the switch S1 is ...
1
vote
1answer
67 views

Move water using raspberry pi

bit of an amateur looking for some advice. Have done quite a bit of web searching but want to validate my proposed design. The project is a water control system using a raspberry pi. I have a water ...
0
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2answers
57 views

understanding charecteristics of transistors

1> While plotting input characteristics of a transistor, we choose to keep output voltage constant and plot the variation of input voltage and current. Why do we choose to keep output voltage constant ...
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0answers
37 views

1Amp 3.3V Power Supply [closed]

I have a little problem with my power supply design. Basically I have a AM335x CPU Module that requires 3.3V - 250 mA for Normal Operations and 3.3V - 800 mA as a recommended power. I therefore ...
0
votes
1answer
120 views

How do operational amplifiers work, exactly?

Can you offer a website or pdf where I can understand how we can calculate current, voltage,etc. in an operational amplifier and how it works exactly (the direction of the current, feedback,etc. )?
1
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2answers
84 views

Transistor Series Regulator

I am in the 6th week in Navy school and we are on voltage regulators or circuits that have components that maintain a constant voltage output. I need an explanation on how to work out this problem ...
0
votes
2answers
99 views

Can a CPUs speed be increased by (physically) upgrading the CPU clock?

I don't know much about CPU operation, but I'm learning. I read somewhere that making a CPU work faster is as simple as increasing the clock speed (one method among many), and that the real limiting ...
0
votes
1answer
32 views

Depassing 15V on Operational Amplificator?

So in the book it says we can obtain the following relation using negative feedback (Out Voltage)=1+ R2/R1 (In Voltage) The out voltage can depass +15 V , How can this be possible?
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2answers
51 views

What is this circuit gain when set is in [0,1]?

When set is 0 or 1 I could find it. It either attenuates by 10 or amplifies by 10. However, the circuit becomes different when it is between 0 and 1.
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0answers
32 views

At higher speed? [closed]

I am running at higher speed settings only one of my motors runs. When I lowered my steps per mm in marlin the issue went away. Do you guys think it could be a current issue or a motor issue? Thanks ...
0
votes
1answer
32 views

SSD1306 current reference

In SSD1306 the segment current sets with resistor at IREF pin, and the current depends on VCC. I have no stabile VCC, because it powered either directly from 9V alkaline battery or external 12V ...
1
vote
1answer
36 views

Parametric PSD window to data

I have question abouth parametric spectrum density (PSD) estimation using Yule-Walker (autocorrelation method) equation, which relays on autocorelation: And it's mention: "However, since the ...
0
votes
0answers
59 views

Can bad Bypass diodes in solar panels cause drop in amperage? [closed]

I had 6 panels at home they worked well for a few days but today the amperage dropped suddenly the voltage is proper but can't get the right amperage from cells can a bad bypass diode cause this ...
1
vote
0answers
27 views

DSP for 200 MHz signal with ability to install linux and ethernet support [closed]

Suppose we have 200 MHz signal, that we need to process and send the results of the processing over the Ethernet. I know basics about DSP and FPGA. I've worked with some cortex m4 microcontrollers ...
2
votes
3answers
126 views

Is single ended amplifier a subset of differential amplifier?

The reason I'm asking this is that when I read about CMRR issue in amplifiers I only see differential amplifiers as if it is only a diff. amp. issue. But isn't a single ended amplifier also a ...