A circuit that converts a signal from one form to another. Analog to digital, Digital to analog, Voltage to current, Current to voltage etc. The key to understanding is the transformational properties of the circuit as opposed to just amplification or buffering.

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2answers
49 views

Advice and critical remarks regarding the manufacturing of a DC-DC step-down converter

I'm in the third year of my electrical engineering major and I want to take things a bit further than the usual analogue electronic circuits I've studied thus far by making a DC-DC step down converter ...
-2
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1answer
35 views

Can a wind turbine full-scale converter absorb active power?

Is a full-scale converter of a wind turbine type 4 capable of absorbing active power? If it is possible, where would this power be dissipated? If yes, where would this active power go, in the ...
-1
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1answer
76 views

Converting from 240V ~ 50Hz @ 1500W to 110v 60Hz [closed]

I'm moving from Australia to America and I have a coffee machine suited for the power conditions described above (and shown in the image below) << Edited since was put on hold >> Facts: ...
0
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1answer
36 views

Will a 110-220v to 12v converter work with a DC 12v 3w LED bulb? [closed]

I'm planning to create some wall lights using these LED bulbs. Would I be able to just use any 110-220v to 12v converter to power this at home? I live in the US (120v). I was thinking of using this ...
0
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1answer
48 views

Bipolar Voltage to Current Converter

I need a circuit or component which converts bipolar voltage to bipolar current. I have found the XTR111 from Texas Instruments and the 1B22 from Analog Devices. However, they only convert 0-10 V to ...
0
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1answer
32 views

Rc car, power supply instead of alkaline battery?

I have an RC car which works with 8 AA alkaline batteries, which make a total of 12 volts. I want to replace the battery with a 12v 2A power supply (batteries cost away too much...) Do you think the ...
1
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2answers
55 views

Supercapacitor Voltage Draw

If I am charging a super capacitor with buck converter, that is a 1 amp, 1-18 volt output, and the capacitor is rated for 2.5 volts, how do I stop the buck converter from feeding it more than 2.5 ...
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0answers
23 views

vfd DC linked AC/AC

A typical variable frequency drive consists of a DC-linked 3-phase 6-pulse rectifier and a 3-phase bridge SPWM inverter. Suppose the source line rms voltage is 380V and the PWM constant is 1. ...
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1answer
39 views

Buck converter is stuck at a certain voltage?

We are currently building a buck converter (see below). Values of components: Capacitor: 15 micro Farad Inductor: 1.41 milli Henry Mosfet: N-mosfet Resistor: 330 ohm Problem: When applying a 15 ...
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0answers
36 views

Voltage converter circuit

Please help I need a voltage converter (blue box) for this circuit. IG1 (battery voltage 0~16V) given the ON and OFF threshold voltage will convert it to Power IC enable/disable port (ON: 2V or more , ...
0
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2answers
45 views

Voltage increase per cycle across capacitor for a boost converter

So I'm looking to make a high voltage capacitor charger using a boost converter and I'm wondering how much voltage the capacitor will increase per cycle of the boost converter. In reality, I would ...
0
votes
4answers
100 views

Can I use a DC-DC buck converter with an arduino

I'm just starting out with electronics and arduinos, but I want to ask if i'll be safe using an LM2596S DC-DC step down buck converter as the regulator for my arduino project? I have a few to hand ...
0
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1answer
53 views

Step up converter for electrical motor, 110V to 230V

Wasn't being careful when purchasing a vacuum pump for silicone de-gassing so I ended up with an american standard. (I live in sweden) Tried to search this but with limited knowledge comes limited ...
0
votes
3answers
90 views

Does a boost converter lower the source current of a solar panel?

I am trying to build a solar powered phone charger using small size solar panels. I have two solar panel connected in series, each of them are 4 V and 50 mAmps. When I connect the solar panels to the ...
0
votes
1answer
42 views

Calculating the time for current reducing to zero from a charged inductor in a series LC circuit

I'm wondering how you calculate the time taken for the current in a charged inductor to reduce to zero with the only current path being through a capacitor. I'm looking at this from the perspective of ...
1
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2answers
74 views

High Current DC Power Supply

I'm attempting to build a compact way to charge six laptops (of the same model) so that I may avoid using six individual power cables. I'm trying to make it cost-effective yet safe. My initial design ...
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votes
1answer
47 views

VHDL to Verilog conversion for Parking Sensor

I am trying to do parking sensor with verilog and I have its vhdl code and trying to translate it to verilog can you please help me to find out what is my problem. There is no error the error is only ...
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votes
1answer
57 views

DC to AC converter

I know there are lots of circuits that do this, but I need to design a circuit that has a DC input and a square wave output by using any of these components: capacitors, inductors, OpAmps, resistors, ...
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votes
2answers
80 views

What effects will a 220 to 110 transformer have on an electric oven? [closed]

I'm a Jewish person looking to bake matzah, which in English is called unleavened bread. There are particular ways to do this, and particular ovens to get, but most of these things are made in Israel. ...
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3answers
107 views

How to make a boost converter circuit

I've seen multiple different explanations on boost converter circuits, these two specifically explaining in very intimate detail how they work, and on how to calculate certain values: How to design a ...
1
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1answer
59 views

What would happen if you connect a solar panel to a buck-boost converter?

What would happen if you connect a solar panel with the following characteristics: Max Power:3.5W Voltage: 6V Open Voltage: 7.2V To a buck-boost converter that convert an input voltage in the ...
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votes
2answers
105 views

Convert 5v 20mA to 12v 0.4Amps

I am going to be making a 3d printer and i have made a circuit to control it. However, the stepper motor is 12v 0.4amps and the circuit is 5v 20mA. I need a way to amplify, but if you can show me, ...
0
votes
1answer
85 views

Need circuit for 12 volt 2 Amp step down power supply from 18 volt 1.5 Amp Input

I have a power supply which outputs 18v 1.5 amp. For the purpose of my project, I need a 12v 2 amp power supply. I was wondering, if I can make a simple buck converter to convert 18v 1.5amp DC to 12v ...
0
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0answers
37 views

PWM Pattern for Isolated Boost Converter in PSIM

i have to simulate full bridge Isolated boost converter as shown in the figure. i am very confused about the PWM pattern. how can generate for four cycle in PSIM. please suggest me the how to set the ...
0
votes
1answer
52 views

Convert sine wave from NRG Anemometer to square wave

I am hoping to interface an NRG #40C anemometer to an Arduino. The anemometer outputs a frequency which is linear with the wind speed which equates to 1.711 mph/Hz. However the output voltage ranges ...
0
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0answers
39 views

JESD204B over fiber optic

How can i send SYSREF/SYNC signals of JESD204B over fiber optic? I have to connect some ADC to FPGA with fiber cable and the distance between them is maximum 2 meters. The rate of each lane is about ...
0
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1answer
69 views

Sine to pulse converter circuit help

I have a sine to pulse converter box(LM2903 is used), it works very well and I also have the circuit schematics. The converter converts the mV level sinusoidal signals to pulses. I want to rebuild ...
0
votes
2answers
104 views

Negative to Positive Voltage Converter

Is there an easy circuit or IC that will convert negative voltage to positive voltage and retain the initial value? Context below. I am trying to add a volt meter to my power supply using some old ...
0
votes
1answer
48 views

Self resonant frequency of buck converter

I know that one can calculate the self-resonant frequency for an LC filter of a simple buck converter(having one inductor and one capacitor at the output) by the formula 0.5*pi*sqrt(LC). My question ...
0
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1answer
71 views

2 AC to DC converters in series problem

Hello, I am a beginner at electronics. I have two AC to DC converters ((3),(5) in image). The converter with the number 3 is connected parallel with my room's light bulb. It converts 220v AC to 12V ...
2
votes
1answer
58 views

Is gapped core required in Two switch forward converter

I want to design a Two switch Forward Converter. So is there Gap required in this topology like a Flyback converter or not. My second question is, can I calculate the transformer turns ratio of the ...
1
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1answer
57 views

Determining the open-loop output impedance of a buck-boost converter. How to do it?

I'm currently working with a circuit that is slightly more complicated than a buck-boost converter, but for simplicity let's just consider the small-signal model of a standard buck-boost converter. I ...
0
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1answer
49 views

Relationship between switching pattern and the harmonics generated

Is there any relationship between the switching pattern of a power converter and the harmonics generated (amplitude & phase) ? i want to predict the generated harmonics based on the switching ...
1
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1answer
72 views

How to combine or simplify multiple 5-12V level shifters

I've created the following model for a school project. This is the first time I'm attempting to read sensors or write alarms etc. using a microcontroller. How I can improve it? To me it seems ...
1
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1answer
70 views

High precision capacitor [closed]

I can use your help. I need a high precision capacitor to implement the RC match filter across an inductor to measure the current through it. Picture taken from (IC is not relevant in this ...
1
vote
2answers
35 views

Why is the voltage in this digitizer reduced [duplicate]

I am looking at this page and coming from little EE knowledge, it left me confused. First of all, it defines bandwidth as the following Bandwidth is defined as the measure of a circuit or ...
0
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0answers
41 views

Output capacitor buck converter

How do I calculate or design the best output capacitor for a buck converter. I know I can choose practically every value if I stick to the digital schematic, but I need a real PCB in the end and I ...
1
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0answers
132 views

3.5mm Jack communication

In my project, I am trying to control (tune) an FM receiver from a smartphone through 3.5mm jack audio interface of the phone. I have read a bit about the 3.5mm jack communication protocols here. Now ...
0
votes
0answers
30 views

Lower input sink current in DC DC converters for solar applications

I would like to design a DC-DC converter for a solar panel. My panel has a greater current supply (around 6.5A) but all the digitally controlled DC-DC converters available in the market are having a ...
0
votes
1answer
107 views

Step up voltage converter / transformer sizing for electric oven

I am considering using a step-up voltage converter/transformer to increase the voltage of an outlet (in Los Angeles) from 110 VAC to 220 VAC for use with a 220 VAC electric oven/range (Samsung ...
1
vote
1answer
61 views

High Drain Current MOSFET vs Low Drain Current MOSFET for Synchronous Buck Converter

For a battery charging application, i have to build a synchronous buck converter (i/p voltage = 12V , o/p Voltage = 4.5V) which would be driven by a PWM signal from the micro-controller. This Buck ...
1
vote
1answer
66 views

What is the name for an IC that accepts an analog voltage and outputs a proportional PWM signal?

I want to isolate an analog signal. One way of doing this is to convert the analog signal to PWM, isolate the pulses with an optoisolator, and filter the PWM on the other side. Obviously I could do ...
1
vote
1answer
73 views

How can an ADC measure below its resolution?

An ADC's resolution is set by the maximum input voltage divided by 2b where b is the number of bits. In that way, a 16-bit ADC with 20V input can measure a voltage of 20/65536 = 0.3mV (corresponding ...
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0answers
93 views

Can I use a capacitive divider to run an AC/DC converter from a higher voltage than its rating?

Suppose I have an AC/DC converter rated to run from 120-240VAC, and I want to run it off 480 VAC. I think I should be able to put two capacitors in series as a voltage divider, and run the converter ...
0
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1answer
42 views

Magnetizing current in switching converter

I have a question about the magnetizing current in a forward switching converter (image from "ON Semiconductor: Am improved 2-switch forward converter application"). From the picture it looks like ...
1
vote
1answer
128 views

DC-DC SPMS Boost Converter DCM Prevention

Sorry for the long question, it's really opinions I seek which is why I felt I needed to explain the scenario and how much I know/don't know. I would really like some input on my design. I am ...
1
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1answer
73 views

Minimum current draw of AC to DC converter at no load

I wanted to know if there is a minimum current draw on the AC to DC converters from the AC source when it is connected to an input voltage of 120V (60Hz), when no load is connected at the output of ...
0
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0answers
62 views

LT8609 DC/DC stepdown not working correctly

I am using this exact circuit with the exception of a 2.7uH coil (closest available at the local parts store). It is an example provided in the LT8609 datasheet: The only load is an LED with a ...
0
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2answers
170 views

Has anyone built an rs232 to usb converter?

I want to implement serial communication into one of my projects, but I'm hesitant to use a serial cable due them them being exceedingly hard to find nowadays. I found an old converter and took it ...
2
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0answers
87 views

RS232 to TTL converter problem

I have a RS232 to TTL Converter which has 4 pins Vcc, Tx, Rx, GND . I am trying to make a serial communication with my PC. I have a AVR development board and I have tested my program by connecting ...