
Confused with voltage divider
20151124
I'm confused with voltage divider..For the voltage going into Base, do I use the formula A or B to calculate? After searching some infos on google, I assume A is the right formula? What's confusing me is that in my book, it says Voltage XY = 40/50, a

Limiting the input current with voltage divider
20130713
I would like to measure two signals with a microcontroller ADC: 0 to 5V, 5MHz 36 to +36V 100Hz – Schematic created using CircuitLab I want to draw as small current as possible from the input signal. I chosed the OPA365 amplifier to shift the signal

LPC2148 ADC problem with voltage divider for battery
20111212
edit: solution found with our new board revision; outside of careless mistakes, buffering the signal with an op amp seems to have resolved the issue (as suggested by Joshua below). I am working with a custom PCB using the ARM LPC2148. I'm trying to m

Choose the resistence with voltage divider sensor
20120723
I'm on voltage dividers circuits for reading some sensors that changes their resistance (force sentive resistor). With my tester (with input scale set on 200K ohms) I read 23 if sensor is not touched and 65 if the sensor is touched at maximum. Now, I

Use the RESET PIN on Attiny85 as Input with voltage divider
20151013
Voltage divider & pullup with analogRead The Attiny has 6 pins that you can use as I/O. While 5 of them are really easy to use the Pin 1, the Reset PIN , obviously Resets the Microcontroller if the voltage is lower than around 2.5v. By reprogramming

Is operating point calculation the same for PJFET and NJFET with voltagedivider bias?
20131023
I've seen this calculation of operating point for NJFET: Together with the relation \$I_D = I_{DSS}(1V_{GS}/U_P)^2\$, it is possible to find \$I_D\$ and \$V_{SD}\$. This method doesn't take into account that it's a NJFET. Does this mean that the r

Resolution a problem with voltage divider
20131024
I'm facing a problem I don't exactly know how to resolve. I have this circuit The 2k resistance is a potentiometer. Basically we have a wheatstone bridge. Here's the picture The question is : how do you adjust the potentiometer so that the amp meter

How to create number limitations with JOptionPane.showInputDialog(null, "");
20160210
So I'm making a game as you can see but i need to make it so that the player cannot use more than 28 stat points. Can anyone help? Here is my code. package fallout.pkg4.game; import javax.swing.JOptionPane; public class Fallout4Game { public static v

How does the resistance of the load affects a voltage divider?
20150211
Every explanation I've seen so far about voltage dividers, only consider the two main resistors (that do the "dividing"), and pretty much ignore what happens after Vout. The circuits in the explanations look more of less like this: In this examp

Stiff Voltage Divider Bias for an Emitter Follower
20140811
Below is an accoupled emitter follower with base bias provided by a voltage divider. I'm having a slight issue with how the resistor values are chosen for the biasing in the design example provided in the Art of Electronics (pg 70). I've included th

How does the electricity "know" the ratio of the resistance in a voltage divider?
20120329
I'm having a hard time conceptualizing what/how things are working in a voltage divider setup. I've read a couple other questions/explanations where the answerer has said to "not think about it in terms of water", but it's difficult to not do so

When use Voltage divider in circuit analysis
20130426
I am trying to find the voltage in R2 with voltage divider, this is the schematic: – Schematic created using CircuitLab but I can't, and I don't know how to apply the voltage divider here. What I tried to do was: First I convert the Delta R2R3R4 to

Voltage Divider give different values
20160721
This question already has an answer here: When would I use a voltage regulator vs voltage divider? 4 answers I have made a simulation of voltage divider, and that give me the same value like on this calculator: http://www.ohmslawcalculator.com/voltag

Is there a fundamental limitation on how rapidly (with voltage) can a diode 'switch' ? If so, can you pinpoint its origin?
20150806
Is there a fundamental limitation on how rapidly (with voltage) can a diode 'switch' ? If so, can you pinpoint its origin? The diode here is a 1N914 Solutions A diode is "on" when there are charge carriers in what is n

How are the resistor values R1 and R2 calculated for a transistor amplifier that has a voltage divider bias
20160115
Good day friends I am trying to analyse the working of transistor amplifiers with a prime goal of designing a good audio amplifier that does not produce much distortion in the output. I am restricting my analysis to the follow two general purpose tra

Is there any advantage to biasing a transistor with a zener diode rather than a (resistorbased) voltage divider?
20150720
In the figures below, we see two methods of biasing a bipolar transistor: the first uses a voltage divider, and the second employs a zener diode regulator. Since the voltage regulator appears far more frequently, I'm wondering if there exists some sc

Is using Zener diode with a voltage divider sensible?
20160210
I need to convert a floating 12 V voltage to more or less stable 3.3V. So I bought the appropriate Zener diode. Now, since there's such a difference in voltage, I want to make Zener's life simpler and reduce the chance of it being blown up by using a

How to power a voltage divider with 2.1V
20130712
I have a 3.3V circuit with an ADC chip that reads values between 0V and 2.1V, that means anything above 2.1V will return 2047. If I use a voltage divider with the Vcc power supply, I would lose a lot of range. What is the best solution to measure all

Universal Voltage Divider Bias Circuit with both BJT and JFET
20140320
I am dealing with the following circuit: I am trying to understand if I can just assume that, much like in the JFET voltage divider circuit, V_G = 10/(40+10) * 16V , or if the presence of the BJT after the JFET will affect the voltage at this point.