# Questions tagged [conversion]

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### 18 V AC to 5 V DC circuit design with battery

I’ll start by saying I have little understanding of electronic circuits. I have an old door phone to which I have connected a wireless switch in order to be able to open my door with a remote control. ...
1 vote
30 views

### single phase into vfd

I have a three phase in three phase out vfd which is rated for 230V. I would like to use it to power a three phase motor. The manufacturer of the drive states it will run from a single phase input, ...
160 views

### Scaling DAC voltage to smaller range for controlling gate of transistor

I need to scale a DAC voltage which is ranging from 0-5V to a voltage ranging from 3.8-4.2V to control the gate of a mosfet in its linear region. I want the 0-5V range from the DAC to linearly ...
• 25
92 views

### MEMS Microphone Convert V to dBV

At first is sampled data from the IMP23ABSU MEMS mic converted to V by multiplying each sample by the conversion factor $\frac{1}{32786}$. Then i want to calculate the FFT and PSD after applying a ...
• 25
37 views

### Capacitor value for this motor [duplicate]

I have the motor in the picture. In the triangle connection, what is the cap-s value in order to get it running ok? Same, is there any formula / calculus for this situation (triphase motor running on ...
37 views

### What is the ideal wireless protocol that is best suited for wireless nerve impulse transmission? [closed]

I am working to develop a way to transmit nerve impulses wirelessly (or wired) past a break in the spinal cord. What would be the ideal protocol to effectively relay the signal? Even if the device was ...
1 vote
126 views

### How to convert from datasheet dB value to pressure per volt?

I am trying to measure sound waves using a Raspberry Pi Pico ADC pin but am having trouble converting the sensitivity value on my data sheet into pressure units per volt. I have read a many articles ...
67 views

### EMI Input filter

I am looking at using a Cincon PDF700 AC-DC converter in one of my designs. In the datasheet it shows the EMI filter as having first a 30 mH common mode choke and then a 3 mH common mode choke using 2....
974 views

### Can I convert a 36 volt battery to a 48 volt battery or how do I extend a 48 volt 10 amp hours to 48 volt 20 amp hours? [closed]

How do I convert a 48 volt 10 amp hours to 48 volt 20 amp hours battery? Can I convert a 36 volt battery to a 48 volt battery?
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379 views

### How can I convert 5V (USB) to 3V to replace two AA batteries in series?

My knowledge on this is a little rusty. What kind of resistor do I need to put in there? There are 10 LEDs. I'm pretty sure they are in parallel.
282 views

### Using 0-3 V sensor with 0-10 V PLC

I have a sensor that generates an analog 0-3 V output signal. I would like to connect this sensor to a PLC which has only 0-10 V analog inputs. My questions are: Is this recommended to do in general? ...
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151 views

### PSpice model to LTspice (SSM6L09FUTE85LF transistor)

I can't convert a specific transistor model from PSpice to LTspice. Maybe someone has ideas on how to do it? Transistor: SSM6L09FUTE85LF Toshiba https://eu.mouser.com/ProductDetail/Toshiba/...
142 views

### PWM Fan Controller, inverted duty cycle

What I am trying to design is a 12 V DC controller for a PWM fan that uses a 100 Hz input signal and reversed duty cycle between 8 and 87 % to drive it. What I mean by reversed is that the fan is on ...
1 vote
60 views

### Why the ROC is all s? (Signals & System)

The problem from mit ocw signals and systems (open for everyone) https://ocw.mit.edu/courses/6-003-signals-and-systems-fall-2011/ Sorry, I tried to write it Latex, but it doesn't work well. Sorry that ...
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62 views

### Converted PC power supply producing too much voltage

I have converted two ATX PC power supplies to 12V bench power. They have worked flawlessly for the past 5 years. Suddenly, both are providing 17V+. What could be causing this? I have a 10ohm ...
610 views

### How to convert 0-3.3V DC into -/+10V? I am using a MAX3232

The 3.3V DC is output from a MCU. How I can convert to a +/-10V signal?（0 for -10V, 3.3V for 10V.) If you can, please give me a circuit diagram using the max3232. I just used Multisim to simulate ...
1k views

### Measuring ohms on 200 scale

I hope this is on the correct form. I’m measuring the resistance of a stator. The shop manual says I should get a reading of between 5.7 and 8.0 on an ohm scale of Rx1000. The meter I have has scales ...
158 views

### Variable SAR-ADC conversion time with internal clock

In the ADS8867 datasheet it says: Conversion duration may vary but is bounded by the minimum and maximum value of tconv, as specified in the Timing Characteristics section. (p.18) The conversion ...
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1 vote
1k views

### Conversion from 0-10V to resistance - Methodology

Summary Finding the most appropriate methodology for converting a variable voltage output to a variable resistance to mimick/replace a thermistor based sensor. Use case/Example There are two equally ...
74 views

### A machine's energy consumption per product

I need to find the energy consumed per product. Let's say we have product cycle of 10 seconds. The machine reports the average wattage of each second. ...
• 3
400 views

### Converting measured S-parameter to Z-parameter does not match the Z-parameters measured on the same circuit

I have measured the S-parameters for a 4 port circuit. For a certain frequency those values are: ...
1 vote
300 views

### How to convert the outputs from the AD8232 ECG modules back to the raw ECG millivolts (mV)

I have been working with the AD8232 ECG modules for a while now and I am trying to figure out what the raw ECG outputs from this module correlate to. I cannot seem to find any information from their ...
197 views

### Mapping different resolution ADC to DAC

I have a 24-bit ADC that is controlled by an FPGA. I want to take the ADC input and output it from a 16-bit DAC that is also controlled by the FPGA. Do I simply ignore the 8 LSB bits of the data and ...
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439 views

### How do electronics (like transformers) convert high voltage, low current to low voltage, high current, and vice versa?

I am fairly new to tinkering with electronics/electronic-adjacent ideas and I have been wondering: how do electronics get the desired voltage/current to operate properly? I understand in AC power, ...
278 views

### How to convert the outputs from the MAX30003 and/or AD8232 ECG modules to millivolts (mV)

I have been working with the MAX30003 and AD8232 ECG modules for a while now and I am trying to figure out what the raw outputs from both modules correlate to. I cannot seem to find any information ...
511 views

### Converting mains powered monitor into DC

I have a DELL P2212H LED backlit monitor which runs on mains voltage. The power supply is internal. I need to run this from a 12V DC supply. The main transformer has 3 outputs which goes through 3 ...
270 views

### Converting square wave into a sine wave [closed]

I am trying to convert a 1 MHz square wave into a sine wave of the same frequency. What's the best way to achieve this?
2k views

I am trying to make baremetal ADC driver for following development board STM32H723ZG Nucleo (144 pins). Reference manual: STM32H723 Reference Manual Datasheet STM32H7xx Nucleo Datasheet To simplify, ...
729 views

### 100Base-T1 to 100Base-TX conversion

I am trying to convert from Fast Ethernet to Automotive Ethernet (and vice versa). I believe I have verified a solution and if someone can confirm, I would appreciate it. I believe I can just connect ...
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1 vote
537 views

### How to relate resistance/reactance to parallel/series equivalent circuits?

Problem 7A of The Electronics of Radio asks the reader to find the relationships between resistance and reactance values in any arbitrary series/parallel circuit and their counterparts in a parallel/...
• 135
1k views

### Converting battery powered LED lights to AC power [closed]

I have 8 LED decorative pieces that are powered by 4 AA batteries each. Each piece has a control board for different light patterns. Since it's expensive to operate these devices by replacing the ...
• 11
147 views

### AC signal combination

I have a question about combining two AC signals into one. For my project I need to convert stereo audio to mono audio. For the conversion I used this circuit: I made this simple circuit on my ...
1 vote
310 views

### Mathematical conversion of hex to decimal

I am stuck with a very trivial coding issue. Please refer the link below: Cordic Algorithm using Verilog By what mathematical rule hex 26dd2b6a is equal to 0.607252935008814?
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1 vote
159 views

### USB B to C Receptacle Wiring

Hi I am working on a project and my PCB needs to convert from USB 2.0 to a USB C receptacle. Is this wiring correct? I am using this 14 pin USB C receptacle https://datasheet.lcsc.com/lcsc/...
61 views

### Adapting NP-F 7.4-7.2v to 6-6.3v for old camcorder power (JVC GR-AX280)

So my first time posting I have a JVC GR-AX280 that has a 6v to 6.3v DC input range at 1.8A. The goal is to adapt future proof NPF style 7.4-7.2v batteries via a mount adapter as its format of ...
1 vote
40 views

### □ -> X Conversion

In cicuit analasys to make a circuit easier you can use delta wye conversion. This means that when there part of a circuit with 3 nodes, where each of the 3 resistors ar in betwen 2 nodes, this can be ...
106 views

### Creating a wire break alarm exclusively with surface mounts

Also called wire cut circuits, alarm circuits, etc. Basically a circuit that, when a wire loop is cut sends a signal out like a NO switch being pressed. I've made them before and it's mostly going ...
4k views

### How to convert leds from AA batteries to a DC source

I have 2 strings of 100 white LEDs each that are powered by a battery pack of 3 AA batteries for each string. What I would like to do is use one of my low voltage power supplies that are typically ...
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2k views

### Converting 3V3 PWM to 5V analog

I want to convert a 3V3 PWM (10 kHz) signal to a 0-5V analog DC signal using transistors only (no DAC), if possible. The output logic should be non-inverted, i.e. 0V->0V and 3V3->5V. The time ...
• 719
133 views

### How to properly connect a USB-C 2.0 plug to an FT230XS module?

I am coming to you for advice and I also need your help. I am working on a motor control board and for the debugging side I use a USB-C 2.0 connector and a module from FTDI, the FT230XS. Here is my ...
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1 vote
224 views

### Will this step up converter solve my problem?

For a project I am doing at home, I need to convert a 5V digital output from an Arduino to a 12V digital output to power a motor. A solution I found for this is using a step up converter. The step up ...
450 views

### Why do we write the integer part from top to bottom and not the other way?

While converting the fractional part of a decimal number to another number system, why do we write the integer part from top to bottom and not the other way? Since the fractional part is 0, the ...
• 385
310 views

### I use the NUCLEO-L476RG board. ADC runs at 64 MHz and ADC has a 5.33 Msps maximum conversion rate with full resolution

I need to take 10 samples (10 Hz) per second. How can I set ADC configurations on CubeMX. I use the lowest sampling time (2.5 cycles), but the values I convert and use in ADC change very quickly. ...
103 views

### Can I have some help compacting this?

I am trying to build a transistor computer, and I want to save as much resources as possible. However, I also want it to be practical, so I am implementing a binary-decimal conversion. In order to ...
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1 vote
53 views

### Crank angle during cycling conversion

I work in a laboratory, and we are performing experiments on a cycle ergometer, during which we would like to deliver magnetic stimulations during cycling exercise. To do so, we need to know the angle ...
139 views

### 4-20 mA analogue signal conversion to flow rate

I have the following control setup: For that, I have data recorded for every I/O block, and I am asked to determine the function used by the AIN block to convert from an analogue 4-20 mA signal to a ...
• 1
251 views

### 200Ah battery for a 500W mini ITX PC

I want to make a project that allows a 500 watt PC to run on batteries for 4 hours, so it can be worn by an individual on their back. I found the below calculation to get the capacity of the battery ...
12k views

### how to convert/calculate $\text{kJ}/\text{m}^2$ to $\text{W}/\text{m}^2$

I have some solar radiation data that comes in $\text{kJ}/\text{m}^2$. These data were formerly available for download in $\text{W}/\text{m}^2$. I tried to find some ways to do the conversion from ...
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