AMPSpekerjaan

Hi, we have a quick and straight forward task for an electrical engineer please. We need some Electrical assistance to calculate and identify correct resistors to regulate a 48v DC device. The device is currently running at 48V x 12.35A and we would like to regulate the amps down to either 10A or 11A or somewhere in between - we need to trial both solutions to see results on the device - over heating/performance etc.. The resistors should ideally be chassis mount and available on the uk store - or rscomponents We would like the engineer to help us identify the appropriate resistor(s) to use to achieve this. Thanks in advance, Mark

Looking for a PCB designer for a time domain electromagnetic metal detector incl. coils. The PCB needs to be able to output 1-100 amps to a transmission coil (TX). The PCB needs to receive 1-10000 millivolt readings from reception coil (RX). A sampling rate of 500Hz with 1000 readings per cycle needs to be received by a TI Tiva board. Should find metal objects 1-1,000,000 cm3 at depths 1-300cm underground. Wire material enameled copper (later enameled aluminum). TDEM-principles need to be understood. TDEM-Patents need to be read. (google geonics & ebinger). An analysis of read papers needs to be given to check rate of understanding. Pictures of existing PCBs of an old pro version must be analyzed. Focus needs to be on super light weight construction. The TDEM-detector will be mo...

Math work done for device. The problem is the following. 250w dc motor. Operating on either 5amp or 10 amps. The batteries used will be the following. Type 18650 2000mah, 3.7v. The question needing answered is the following. How many 18650 2000mah, 3.7v batteries will be needed to operate the 250w dc motor for 30 mins under load. I need this answer for both a 5 amp draw and a 10 amp draw. Also need answered the total operating time at 85% capacity. I need to see your work written out as well. I need this ASAP.

looking for someone who is very scrappy and able to move quickly on designing, testing and then setting up mass manufacturing of electronic devices. this device will be usb c to usb c dc to dc converter board that will allows for users to tap into any usb c charger and get the voltage and amps they need to power whatever project they need to power. when replying answer these questions: 1. tell me how you plan to tackle this project? 2. tell me of similar or identical products currently on the market that do some of all of what we want 3. reply with your ability and knowledge to lead from design to mass production

Its an old Electrically driven hydraulic pump with a warehouse lift platform The 13 amp fuse keeps blowing electrician said motor is using 22.5 amps It may just need a good service, it may have a motor problem Pics x 6 attached

The Project details: - design the pcb with altium - shematic is existing inkluding foot print and 3d Model, some are missing, please add them to the Libary as well ( Altium Project files available) - PSFB Converter - Input Voltage up to 800 VDC - Output Voltage up to 450VDC - Output Current up to 60 Amps Inkluding design of a 10KVA Planar Transformer, there will be used 2 in parallel.

Diseñar un convertidor analógico digital con un selector de rango de voltaje 0.00 – 4.99 Voltios 00.0 – 14.9 Voltios 00.0 – 25.0 Voltios Incluir Valor a medir (controlador) Selector del rango de medición Graficas de Tren de Pulsos Diente de Sierra Salida de los Op-amps Clock Compuerta And Selector de Velocidad de Medición 2 seg. 1 seg. 0.5 seg. Display de 7 segmentos **USAR Vi Express(simulated signals) **NO USAR contador y opams hechos por terceros.

dropship store that sells car audio, mostly subwoofers and amps.

The aluminum plate measures 6.75” (17mm) long, 2” (50mm) wide, and 4mm thick. It features 48 4mm unthreaded holes that are spaced apart to provide a number of mounting options, including multiple 4-Hole AMPS devices. The 4-Hole AMPS pattern consists of four holes located in a rectangular pattern spaced at 30.17mm by 38.05mm (measured as the center-to-center distance between holes) we will need to change this design slightly by adding 2 holes. 1 to accomodate a 5mm bolt and one to accomodate a 1/4 X 20 bolt. We have a sample of the product we would like made. We do have a few changes to it, but the dimensions are the same. Just add 2 holes and add a counter sink to the 4 holes in the center as shown in our JPG

Electronics questions help on Mosfets, diodes, bpj op amps

we need designing help for 48v 30 amp, 60v 30 amps, 72v 30 amps lithium IRON phosphate and NMC BATTERY management system PCB, PCBA

The Project details: - design the pcb with altium - shematic is existing inkluding foot print and 3d Model, some are missing, please add them to the Libary as well ( Altium Project files available) - Inbut Voltage up to 525 VAC - Input Current up to 30 Amps per phase - Power 20 kW

Design a circuit schematic, that does the following. As you can see in the picture the circuit sits between a standard Android phone on the left (connected by a 4 pole audio jack cable) and a headset. The circuit also has ...closed, the circuit should insert a DTMF tone for 50ms (or 100ms) on the Mic Line going to the phone and kill the Headset Microphone for that time. On the other hand, when the circuit detects a DTMF tone on the speaker line coming from the phone it should output a close on the GPO. I personally would base the design on an ATMEL Chip (probably ATMEGA 328) and the DTMF chip MT8880C and quite some op amps, but if you come up with any other design, that's cool, too. Most important is the reliability of the circuit and the sound quality, not so much the cost of ...

Need to change the sound/ tone the Bluetooth amps make when it connects to our computer and disconnects. To our own custom sound . The suppliers used to do this for us but now can’t so need to know how to do it on our own.

WANTED: Electrical Engineer with strong background designing Audio Equipment such as Pre-Amplifiers, switchers, Amps Sims, DI Boxes, Effects Pedals, Amplifiers, etc. Message me and tell what your experience in this is.

...direction. So the motor needs to be able to rotate a specific number of times and then stop in the with the correct alignment of the drum. Then we need to allow the reverse of that a specific number of rotations to original position. I have read about STEPPER MOTORS and possible something to control the count of steps from 0º to 180º. The original motor was a 1500 rpm motor 115V and .48 amps. the model is 4RJ20GA-AA and I have just bought a used one but will buy a new Stepper motor if needed. I think I need help in sourcing the correct hardware and to know what controls it. ...

Design a circuit schematic, that does the following. As you can see in the picture the circuit sits between a standard Android phone on the left (connected by a 4 pole audio jack cable) and a headset. The circuit also has ...closed, the circuit should insert a DTMF tone for 50ms (or 100ms) on the Mic Line going to the phone and kill the Headset Microphone for that time. On the other hand, when the circuit detects a DTMF tone on the speaker line coming from the phone it should output a close on the GPO. I personally would base the design on an ATMEL Chip (probably ATMEGA 328) and the DTMF chip MT8880C and quite some op amps, but if you come up with any other design, that's cool, too. Most important is the reliability of the circuit and the sound quality, not so much the cost of ...

...following features please see the attached document, this circuit will be giving to PCB manufacture to make it, the PCB board will be 80mm in diameter circle shape. the power source that will be provided to this board will be 15 dc volts, with 4 amps current., will provide the hardware and circuit connection and also firmware for the PCB, please check the attached file its all there but few modification and needs to add charge port into the board and also need to build charger unit that suit Australia ac to dc voltage to charge 15 dc voltage and 4 amps. terms of payment, by accepting this project freelancer MUST provide all the materials, circuit design, files, drawing and software, and any other materials that is required to manufacture this product to perform the seri...

dear freelancer i am looking for a someone to help me to design a circuit to do the following features please see the attached document, this circuit will be giving to PCB manufacture to make it, the PCB board will be 80mm in diameter circl...following features please see the attached document, this circuit will be giving to PCB manufacture to make it, the PCB board will be 80mm in diameter circle shape. the power source that will be provided to this board will be 15 dc volts, with 4 amps current., will provide the hardware and circuit connection and also firmware for the PCB, please check the attached file its all there but few modification and needs to add charge port into the board and also need to build charger unit that suit Australia ac to dc voltage to charge 15 dc voltage a...

Hi I am after someone that can code me a program, I am making myself a remote for a welding machine. Using a dual output potentiometer I will have one side going back to the welder to control amps as it should but then with the unused potentiometer side I would like a LCD or segmented display readout of the amps. Knowing the min and max values of the welder amps and potentiometer resistance could this be converted from the sensor value to a known value range. And then displayed. Many thanks. Rob

Circuit Design + Board Design Basic Description Car USB Power Supply Input 10-20 V Output 5.15 V 4 Amps Special features : The USB needs to be able to output 5.15 V @ 4 Amps for 15 seconds after the input Power has been switched off (maybe via capacitor ?) There needs to be 1 GPIO pin that is 3.3V as long as input Power is connected If input Power is disconnected this pin needs to be switched to Ground The PCB Dimension should be as small as possible and have a USB connector on one side of the PCB and 2 screw terminals for Power and Ground input on the other side of the PCB The design files as well as the Gerber/Drill/BOM files need to be made available after the Project is finalized

You will provide us with a car spring mass damper model using multisim 1- convert all mechanical parameters into electrical components and values 2- explain how (provide calcuations) 3- input is 12V (explain how you defined your input) 4- ensure the damping we get is realistic (look for realistic car ...electrical components and values 2- explain how (provide calcuations) 3- input is 12V (explain how you defined your input) 4- ensure the damping we get is realistic (look for realistic car damping values from literature or something) it should damp within 1-2 seconds i guess, 5- you give us the simulation model with explanations 6- send a list of electrical equipment (bear in mind we have LM741 OP AMPS at the moment - if this is good we could use it) 7- full explanations (text + au...

...running parameters for each motor, with comments explaining the calculations. - Stealthchop2 silent stepping used through the entire speed range <= 400 RPM if possible - Tuned Stallguard settings which cut motor power when the motor is stalled - Tuned current limits to keep motors as cool as possible (current can be ramped with speed/BEMF) - Feedback from the driver status register indicating current Amps being used, current speed being achieved, how close to Stall event the driver is (so that we may boost current if required in the control loop) - Driver and error status displayed via Arduino serial output for every value in the TMC5160 (ie status and errors registers converted from hex to simple to read statuses). The library already handles most of this I believe. We can ...

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Design circuit which is able to charge 1 – 4 batteries safely (Over charge and discharge protection) Output 3.3 and 5v at .5 amps Input 5v Battery charging 18650 cells (1 - 4). Id like all the above development done in EasyEDA. Thanks

I need a very simple PCB to be used as power connections to a female USB port and a Barrel connector. Each PCB should be 25mm x 38mm in size. The data ports on the USB are not used, only the power pins. The traces should be as wide as possible to carry 5.5V 8 amps. It is a single sided PCB with the traces on the bottom of the PCB and the components on the top of the PCB. See the attached BOM and Layout drawing. The small PCB should be arrayed into 24 pieces that are scored for break off. That array is shown on the drawing. I believe this can be done in one hour. My budget is $50

I am looking for writers for my blog all about Amps. New freelancers are welcome. I am looking for someone with knowledge of musical equipment but more specifically amplifiers (guitar amplifiers, bass amplifiers, drum amplifiers, etc) How it works We’ll come up with a headline for the articles that we want written, and we’ll give you the freedom to research and write them. For each article, we’ll state about how many words it should be. Then, when you’ve finished writing it, we’ll look it over and when we think it’s ready, we’ll publish it. For most of our articles, we target about 2,000 words. For these articles, we will pay 2 cents per word which comes out to about $40 for articles that we publish. As you gain experience writing for u...

The aluminum plate measures 6.75” (17mm) long, 2” (50mm) wide, and 4mm thick. It features 48 4mm unthreaded holes that are spaced apart to provide a number of mounting options, including multiple 4-Hole AMPS devices. The 4-Hole AMPS pattern consists of four holes located in a rectangular pattern spaced at 30.17mm by 38.05mm (measured as the center-to-center distance between holes) we will need to change this design slightly by adding on 5mm hole.

dear freelancer i am looking for a someone to help me to design a circuit to do the following features please see the attached document, this circuit will be giving to PCB manufacture to make it, the PCB board will be 80mm in diameter circle shape. the power source that will be provided to this board will be 15 dc volts, with 4 amps current., will provide the hardware and circuit connection and also firmware for the PCB,

The IPC-2221 data from which these formulas derived only covers up to 35 Amps, trace width up to 400 mils. allowable temperature rise from 10 to 100 degrees Celsius, and copper of 0.5 to 3 ounces per square foot. If used outside of these ranges, this calculator will extrapolate. thus becoming more inaccurate with higher currents. External layers have better heat transfer than internal layers. as air dissipates heat due to convection. while the internal dielectric does not conduct heat as well. Since the goal of the Trace Width Calculator is to prevent an excess temperature rise of the traces. it makes the internal traces wider because they store more heat. In the case of a circuit in vacuum. or

Hi Ishaq K., I noticed your profile and would like to offer you my project. I would be requiring of display of 3 sensors, temperature, Current(Amps), Vibration. The vibration will be in graph plots as shown in the first image, temperature using thermometer display, and current semi dial format, this is my requirement if you can show any sample pics than will allow you

dear freelancer i am looking for a someone to help me to design a circuit to do the following features please see the attached document, this circuit will be giving to PCB manufacture to make it, the PCB board will be 80mm in diameter circle shape. the power source that will be provided to this board will be 15 dc volts, with 4 amps current., will provide the hardware and circuit connection and also firmware for the PCB

...boats with search criteria kind of like this but with different search categories: *an XML feed from our site to other sites following this format: *A calculator that collects inputs on what systems people use on a boat to determine with data about amp usage for each device so that we can calculate the amount of amps they use on a daily basis and the size of a solar system they need to power their needs. Like this but for boats: *A calculator that collects information on their boat length, beam, weight and other characteristics to determine what size electric propulsion system they need *A forum such as

dear freelancer i am looking for a someone to help me to design a circuit to do the following features please see the attached document, this circuit will be giving to PCB manufacture to make it, the PCB board will be 80mm in diameter circle shape. the power source that will be provided to this board will be 15 dc volts, with 4 amps current.

...industry. Our goal is to become the hub of the most useful and in-depth information about digital pianos, keyboards, pianos, and piano playing in general. Most of our articles are 3500-5000-word high-quality pieces of content that go into a lot of detail about the topic. We're now looking for a sound engineer (audio tech savvy) who can help us write several guides on choosing PA speakers, keyboard amps, studio monitors and other audio equipment one may need in a home studio or when doing a gig (explain differences between all the types and cover various aspects that need to be considered). We also have plans for articles about choosing DAWs, mics, and audio interfaces. You must have prior experience working with this music gear and have the necessary expertise to explain ...

I need a program and circuit in Proteus that uses an ATMEGA328P which will include an LCD display and will have a range from mX to X (Example: mV to V). The multimeter will have to be able to measure Volts, Amps, Ohms and Power using AVR assambler.

...industry. Our goal is to become the hub of the most useful and in-depth information about digital pianos, keyboards, pianos, and piano playing in general. Most of our articles are 3500-5000-word high-quality pieces of content that go into a lot of detail about the topic. We're now looking for a sound engineer (audio tech savvy) who can help us write several guides on choosing PA speakers, keyboard amps, studio monitors and other audio equipment one may need in a home studio or when doing a gig (explain differences between all the types and cover various aspects that need to be considered). We also have plans for articles about choosing DAWs, mics, and audio interfaces. You must have prior experience working with this music gear and have the necessary expertise to explain ...

Hi together, Im Looking for an Engineer, who can desing and develope a 18650 Li Ion Master Slave BMS System, who is fully configurable over an IC. The Design should works with Serial and Paralell Battery Pack ...a parallel Packs crash or are not working well. BMS Features Slave: --> Over / Undervoltage Protection --> Shorten Circuit Protection --> Balancing ( Max Nominal Coltage configurable in IC ) --> Charging / Loading Cut Off functionality --> Measure Amps and Voltage --> BLE Component for to communicate with the Master --> Low Poer Consumtion for IC --> Temp masurement and Cut Of or Power a Cooling Fan Master BMS: --> Accesible via HTTP Request. --> Controll every Slave BMS --> Send the Control Parameter to Slave --> Measurement the Main...

I'm looking for a content writer who can create blogs to help boost my SEO. I own a music school () and need to have a content writer create relevant blogs for me to post on my site. PLEASE READ THIS CAREFULLY! You must have EXCE...skills. You must also have knowledge with music lessons (or service based businesses). You should also be able to include graphical images related to my music school. For example, we teach Rock n Roll music lessons. I WOULD NOT want a violin player in the post! I want someone playing an electric guitar, singing on stage, or banging on drums. A BLOG few ideas would be: what kind of electric guitar amps are good for beginners. You can even look at my competitor posts too to help you. Last question that must be answered for a response: What is 3 + 5 =?

...industry. Our goal is to become the hub of the most useful and in-depth information about digital pianos, keyboards, pianos, and piano playing in general. Most of our articles are 3500-5000-word high-quality pieces of content that go into a lot of detail about the topic. We're now looking for a sound engineer (audio tech savvy) who can help us write several guides on choosing PA speakers, keyboard amps, studio monitors and other audio equipment one may need in a home studio or when doing a gig (explain differences between all the types and cover various aspects that need to be considered). We also have plans for articles about choosing DAWs, mics, and audio interfaces. You must have prior experience working with this music gear and have the necessary expertise to explain...

Hello Developers This project is to create a linearization system for the output of a temperature sensor which is it has not a linear output but exponential. With a system or circuit of op-amps have outputs values (0-5v range) with relationship [ -10°C ~ 100°C] and then use them as inputs for a micro-controller (Arduino) from 0,1v to 5v with operating voltage. Find a image and sensor datasheet as reference attached. Waiting for your proposals and questions regarding to the project. Datashet:

In program Arduino has to control 2 stepper motors, 3 current sensors, 3 power controllers ( input is 1-5 v and 4-20 ma) 2 pt 100 sensors after pressing button, the Arduino should start the heat with (0-5) or (4-20 ma) OUTPUT to (1-3) power controllers ( sometime 1 sometime 3 at a time) where heating starts , the Arduino should check how many amps its drawing (1-3 wires) need 3 amps meters and record it with temperature (2- (pt 100) sensors (3 wire) ,) if any no current is sensing it should send buzzer or signal, after reaching certain temperature of each sensor it should control the heat or balance the heat by reducing the power output and per user preference ( only control power by adjusting the output power (not on/off ) function Example: Start the heat till ...

Electrical Engineering: Create Panel Schedule, Multi-line Diagram, Calculate Wire Size, Lighting Plan on UPS backup, and Size Generator/Power supply. Facility size: 53’ X 8’-2” Estimated Maximum Power Demand: 130KVA The facility has several major pieces of equipment and the current equipment/device list is as follows: Description Volts Amps Phase Hrz Connection Exhaust Fans 120 2.8 1 60 Plug Exhaust Fans 120 2.8 1 60 Plug Exhaust Fans 120 2.8 1 60 Plug Exhaust Fans 120 3.8 1 60 Hardwired Powered Louvers 120 2 1 60 Hardwired Powered Louvers 120 2 1 60 Hardwired Powered Louvers 120 2 1 60 Hardwired Powered Louvers 120 2 1 60 Hardwired LED Lighting 120 0.5 1 60 Hardwired LED Lighting 120 0.5 1 60 Hardwired LED Lighting 120 0.5 1 60 Hardwired LED Lighting 120 0.5 1 6...

...NY (SMPTE) - Date: March 11-14 Tokyo (Imagica) - Date: June 17-20 Erlangen, Germany (Fraunhofer) - Date: September 18-21 Santa Clara (Arista) - Date: December 9-12 Possibly we could incorporate the NY and Tokyo skylines, with a traditional Bavarian town for Erlangen, and a silicone valley-esque location for Santa Clara. We are open to other ideas as well. As an engineering society, things like amps, televisions, and our iconic SMPTE color bars (referred below) are always a good fit....

Hi Indika A., I noticed your profile and would like to offer you my project. In program after pressing button , the arduino should start the heat with (0-5) or (4-20 ma) OUTPUT to power controller where heating starts , the arudino should check how many amps its drawing (1-3 wires) need 2 amps meters and record it with temperature (2- (pt 100) sesors ,) if any no current is sensing it should send buzzer or signal , after reaching certain temperature of each sensor it should control the heat or balance the heat by reducing the power output and per user preference ( only control power by adjusting the output power (not on/off ) funtion Example : start the heat tille temp sense 1 reacheds 200 or temp sens 2 reaches 99 ( which ever is early ) reduce heat to 70% u...

Solution provider for industrial applications. This project is a simple analog device to detect an electric cable continuity condition as normal and short circuit and open circuit as alarm conditions. Supply voltage must be assumed 120vac, circuit ...considered as open circuit, while a voltage drop under 8vdc in the zener terminator shall be considered short circuit. Each one of these conditions will have a corresponding LED indicator. There should be a third LED indicator for normal operating condition (zener voltage at 12v and cable current under 100mA). I am attaching a basic constant current supply schematic as a reference. You are free to add op-amps or transistors as needed. Please submit schematic drawing, bill of materials and proposed pcb layout in PDF format with brief ex...

Overview Terra Scout is an IoT "brain" for e-scooters that includes an Advanced Rider-Assistance System (ARAS). The ARAS provides the ability to prevent sidewalk riding, validate parking, detect falls, and precisely track. The unit incorporates a rich sensor suite powe...accessible for debugging. -The enclosure MAY have an ethernet port exposed for debugging. Components -1x Jetson Nano Dev Kit including heat sink. -2x Camera module AR0135 camera board USB shield M12 Lens -1x IMU -3x LED -1x Hologram Nova LTE dongle Notes -Battery and power management The GPIO Header on the nano has two 5V pins, each can accept up to 3 amps. The micro USB cannot be used because it only supplies 2 amps. -Mounting Some ideas we have include a rubber c...

Our mission is to support and provide young musicians with the a place to showcase their talent and hard work. The goal is to create events and venues with a professional stage, PA system and sound engineers. As we get our funding we will eventually be looking to purchase musical instruments and amps to be able to provide a complete backline. I need help getting California state and city grants. I am a newly formed non profit and need help with the applications.

...Raspberry Pi 1 Model B+. My goal is to: 1. Eliminate unused Raspberry Pi 1 Model B+ features. All I want the computer to do is have an inoming ethernet signal take a still photo and download the photo to my laptop computer. I will be using 120 of these PCB's with the Raspberry Pi Noir Camera V2 attachment. All 120 PCB/cameras will take a photo at the same time and then download them. 3. Lower the amps required to power the PCB. 4. Change the power connection to the PCB to a 2 position screw terminal for 2 wires. 5. Select a microprocessor to replace that used on the Raspberry. I believe a Less powerful and less expensive microprocessor can perform this single task. Maybe a 16 bit microprocessor. Designer must have a good understanding of how the ethernet functions. I have ...

...Raspberry Pi 1 Model B+. My goal is to: 1. Eliminate unused Raspberry Pi 1 Model B+ features. All I want the computer to do is have an inoming ethernet signal take a still photo and download the photo to my laptop computer. I will be using 120 of these PCB's with the Raspberry Pi Noir Camera V2 attachment. All 120 PCB/cameras will take a photo at the same time and then download them. 3. Lower the amps required to power the PCB. 4. Change the power connection to the PCB to a 2 position screw terminal for 2 wires. 5. Select a microprocessor to replace that used on the Raspberry. I believe a Less powerful and less expensive microprocessor can perform this single task. Maybe a 16 bit microprocessor. Designer must have a good understanding of how the ethernet functions. I have ...