Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [divider]

21 questions
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votes
3 answers

How can I make an LED strobe light for a turntable to replace a glimm light?

I'd like to make a LED strobe light for a turntable instead of the old glimm light. I've seen some solutions for it by using a crystal oscillator + divider to achieve 100 Hz (I'm in in the EU with 50 Hz 230 V), but I don't have any blueprints to…
driverhertz
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Position of voltage divider relative to measured voltage and analog input

I am designing a PCB that includes a resistor voltage divider to measure the output voltage of a regulator. I am aware, that position of some components on the PCB may affect the performance and accuracy. My question is simple. My analog input is…
Tomáš Havel
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Resistive divider as resistors approach 0 ohms

Resistive divider when R1 = R2, split voltage in half because V = IR, and resistors in series add as Rtot = R1 + R2. It seems like this must break down as R1/2 approach 0 ohms. Anyone have a good explanation of the boundaries for when resistive…
Ohm
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1 answer

Capacitive voltage divider question

I see a few discussions on this but cannot really find the "definitive" answer. I am building an audio amp and have two modules, one requires 18-0-18V AC and the other 12-0V AC, the 12V device requires 500mA approx. I have an 18-0-18 120W 50Hz…
John Earley
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3 answers

Clock Divider in VHDL Code

I have a question about the process that I wrote to divider a 1MHz clock down to a 10kHz clock. I don't know why my code always splits up like it does below, if someone can edit it to look better and let me know what I am doing wrong. Now my…
David777
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SRT division: correcting BSD quotient

I have been reading a lot about the SRT division algorithm lately and I understand that the main idea is that it allows us to skip over addition/subtraction, unlike non-restoring division where we have to perform an ALU operation in every…
s10101010
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Please fix my broken understanding of this simple thermocouple circuit

Here's my qualm: As per the diagram, I can't understand how the trim probe (resistor) affects the meter reading for this thermocouple circuit. If I understand the diagram correctly, everything is connected in parallel. For simplicity sake, the…
Bumblingidiot
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Configuring regulator shut-off

I'm building a regulator based on the TPS63020 buck/boost converter, and I'd like to program a low-voltage shut-off. If I'm understanding it correctly, when VINA sees a falling voltage and it crosses 1.5 V, it should shut off the regulator until…
MiataMan
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Circuit diagram to convert instrument level to mic level

I have a wireless mic transmitter/receiver system that I would like to use to connect to an acoustic electric guitar instead of a microphone. This isn’t part of the problem but will describe the setup. It’s a Rode Wireless GO II mic system. Great…
Macdenewf
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Voltage divider formula

How to find value for both R1 and R2 for Vout=1.23 volts, where Pot=5K, Vin=4.5 - 12 volts? simulate this circuit – Schematic created using CircuitLab In reality, I want to adjust lm2596 buck converter output to 4.5 volts to 12 volts with any…
Hida
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ESP32 Input Voltage Divider, Concept

Thank you for reading. I have read many other voltage divider explanations and calculators on this site as well as the web. My application is using a voltage divider to lower a possible 5 V signal (output of 5 V pressure sensor) to an input of my…
Sparky
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behavior of a pipelined divider

Divider can be made combinational, which uses more logic gates.. Divider can be made sequential, the throughput may stay the same, i.e. use as many stages as the width of the dividend (assuming width of dividend same as divisor), so that it can't…
hardware noob
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How to apply the voltage divider formula based on the characteristics of an NTC

My main task is to make a 10k NTC sensor look like a 100k sensor. I have attached the first 3 images below which show the Excel sheet I am working on which includes the temperature (Range of -55 to 300 degrees C) and NTC resistance values (for both…
Mahnoor
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5V required from 13V supply

I have a 13V supply powering a brake light in my car. I'd like to take 5V from the line but I still want my bulb to get the power it's supposed to get. How can I do this?
Jack Tyu
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Unexpected voltage shift on analog input

I have a resistor divider analog input circuit that has an off-board resistance applied in the form of a sensor. The off-board sensor/resistance can be anywhere from 300 Ω to 12 kΩ. I see strange behavior on a new board design compared to the same…
zme
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