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Questions tagged [resistor-ladder]

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0
votes
1answer
48 views

Proving the output voltage of a resistor ladder only with usage of currents

I got the following problem. I would like to prove the the output voltage \$U_{aus}\$ of the following system. I only want to prove it by using currents. So I don't want to use the formula for a ...
3
votes
1answer
161 views

can I use a board that has resistor ladder buttons on raspberry pi?

I have a clock that has a circuit board with a resistor ladder setup for the buttons. I want to (disconnect the clock and) put a pi inside and use the buttons to control the pi. In normal use the ...
0
votes
1answer
131 views

Using resistor networks as voltage ladder

Are there resistor networks which could function as a pre-made voltage ladder? In other words are there variations on how the resistor network is assembled, ie in series or parallel? I've found these ...
3
votes
1answer
574 views

Designing a car steering wheel interface, need to distinguish between two resistor ladders on the same ADC

I am designing an interface for my car steering wheel to a Android head unit, using a Sparkfun Arduino Pro Micro to handle the USB side of things. The steering wheel buttons use three wires and a ...
0
votes
1answer
1k views

Resistor ladder with Same resistor value and different resistor value

Im trying to connect 8 buttons to Arduino Analog input. I found its good to use input shift registers. But with my very basic knowledge I end up with resistor ladder. But Im a bit confused with ...
1
vote
2answers
474 views

Logarithmically-spaced resistances using switches

If you want a linearly-spaced set of resistances, you can use a ladder of logarithmically-spaced resistors and short out different combinations, as described here. Is there a way to get a ...
0
votes
1answer
86 views

How to replace microswitches with electronic switches in a voltage / resistor ladder circuit

Hello everyone, I am relocating a pair of transmission control levers to a different location within a car. At present each lever actuates a pair of SPST microswitches (at the same time) ...
-2
votes
1answer
264 views

Are there electrically controlled precision rheostats that are not solid state

I need precision variable resistors for a programmable analog computer that I'm trying to construct. An analog computer requires variable resistors that can be set with precision. I don't want to ...
0
votes
1answer
71 views

How do you interface with this sensor? MPS-2100series

I am trying to figure out how to get a reading from this sensor. At first look at the schematic, it thought it was wheatstone bridge, but at a closer look, it appears to be a resistor ladder type ...
6
votes
3answers
245 views

Closed form expression for a resistor ladder network

Is it possible to find a closed form expression for the resistance between A and B for the general n-section ladder network, below, where all resistors are \$\small 1\Omega\$? An iterative expression ...
0
votes
2answers
916 views

Programmable gain instrumentation amplifier with R-2R ladder and analog multiplexer

I want to build a programmable gain instrumentation amplifier with power of two possible gains (1x, 2x, 4x, 8x...). Is there a way to use a R-2R resistor ladder and an analog multiplexer in order to ...
2
votes
1answer
546 views

How to “push buttons” on voltage ladder?

I have a quite simple task I can't wrap my head around. I have an old home 5.1 sound system with optical input that plays sounds from my media center. Its remote broke, and while I tried to fix it, I ...
0
votes
2answers
424 views

A simple digital current sink for a fuel gauge?

I need to simulate a 1200Ω fuel sender with an arduino, so I can control the fuel gauge. The fuel gauge has one wire which it supplies with an unknown current and voltage, where the voltage is no ...