All Questions
10
questions
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votes
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84
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Parallel/Series Resistors Voltage measurement
I want to know the value of the resistors here. There are three conditions in this picture. Its getting really hard to fulfil the correct resistor values. Thats why i decided to post it here
0
votes
0
answers
225
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Calculating the change in output voltage as temperature changes the control feedback resistance
I am trying to calculate the new output voltage when the temperature changes the resistance of the feedback network which sets the output voltage.
I have this circuit using the MCP16311/2 buck ...
- 412
1
vote
2
answers
297
views
Very high resistance
I'm playing around with a very simple setup:
9V battery
light diode
voltage divider (R1 - three 1 kOhm resistors, R2 - one 1 kOhm resistor), which should give me roughly 3V for the diode
The first ...
- 113
0
votes
1
answer
59
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Advice on a voltage measuring circuit
I've been working on a voltage divider circuit that will hopefully allow me to measure voltages between 0-60 kV DC (80 W) as 0-889 volts DC.
The voltage divider section that is used to measure the ...
- 41
7
votes
5
answers
7k
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Are these 2 resistors in parallel?
So I had a circuit to analyse and I needed to find the equivalent resistor and then I arrived to a confusion. Are R1 and R3 in parallel?
Here is the circuit.
simulate this circuit – Schematic ...
- 109
0
votes
1
answer
487
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Want to convert 14.8v to 5v at Max 30 Amp current draw
I want to convert 14.8v to 5v at Max 30 Amp current draw. IS this possible using resistors?? I don't know that how much current a resistors can draw without any circuit issue. Readymate solution for ...
- 75
1
vote
4
answers
565
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The effect of combined resistors?
I need to convert 5v to 3.3v, easy. I need an 2k resistor though so i looked if two 1k resistors could achieve the same effect. I found pretty contradictory information on the subject though, could ...
- 83
0
votes
1
answer
82
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Making a voltage drop while providing high current - how does this work?
I have a USB power source at 5V which needs to power a chip at ideally 4V (4.4V max) - but I need to be able to supply 2A of current for the "spike" current draws for the chip. In general the chip ...
- 13
3
votes
2
answers
1k
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Cermet potentiometer temperature coefficients
I'm engineering a system that is temperature-sensitive, between ~-10-30C. I've moved to using cermet potentiometers because of their sub-200PPM/C temperature coefficients.
If I wire such a pot with ...
- 3,229
1
vote
2
answers
1k
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Voltage Division Problem
I am currently taking MIT 6.002 course to get a head start prior to starting EE next fall. Right now, I am really struggling with this first lab.
Problem:
You have a 6-volt battery (assumed ideal) ...
