Voltage amplifier designmunkák

a report of VRDT to regulate voltage in distribution system with solar PV

I need a custom Raspberry PI Compute module IO board designed that will remove the HDMI connectors and and a...Raspberry PI Compute module IO board designed that will remove the HDMI connectors and and add the following components to the system: 2 SIMCOM 7600G-H LTE modems with RF path attached to LTE amplifier ICs. Board mounted SMA connectors towards rear of board. board mounted SIM card carriers toward read of board. USB hub chip with SIMCOM's wired to it and then to the existing USB 2.0 interfaces on the Raspberry PI IO board. Board needs to be manufacturable by PCBWay SMT manufacturing line. Special attention needs to be paid to ensure RF signals do not interfere with other data signals on the board. Amplifier chips should be selected to service the US LTE spec...

It is a battery powered,spwm sine wave inverter and the code is already system is working in real HW and i can make the device is an ESP 32 and voltage feedack comunicates via an ADS1115 A/D converter.I want a code for PID close loop controll for the system,and some other necessary functionalyties around this function.

...on a permanent magnet that is mechanically coupled to a shaft. We need assistance with the design of the coil, magnet sizing, and driver board. The driver board will need to have a simple battery management system built in for charging and safe operation with a Li-Ion cell operating at 3.7v DC. The board will need to fit into a small form factor no larger than 20mm wide and 75mm long. There also needs to be a safety interlock that keeps the device from operating while plugged into the charger. Charging will need to be accommodated by the use of a single USB-C female receptacle for 5V DC @ 1A. This connector needs to be mounted on the board, the final required position is TBD pending the finalized design of the enclosure. The board will need a single input button with the...

Develop a circuit with the following functionalities. - ATSAMD21G18 incl. adapted Arduino bootloader and documentation - 3x RS232 connection using the MAX3232 - At least six GPIO ports - Input voltage: 12 V - TCXO with at least 2.5PPM The circuit should be designed incl. PCB in Eagle and the components incl. order number should be listed at Mouser or Farnell. In addition, a prototype PCB is to be developed and built incl. example script.

...7V) batteries. 2. The battery voltage and current should be adjustable so the total power should be around 3KW. 3. Typical battery voltages should be from 12V to 144V 4. User should be able to change the max charge voltage and current through pot and user should be able to see his/her set voltage and current limits. 5. Visual indication should be provided about the status of the charge. 6. The operating temperature of the device should be between -20°C to 65°C (Environment temperature) 7. The PCBs should have mounting holes to place it inside an enclosure. 8. All the test conducted should be properly documented. 9. The device should have at least EMC directive 2014/30/EU or TÜV EN62368-1, otherwise it can not be sold to European market. 10. The ...

I would like to have time series voltage data for a distribution network from Open DSS , CYMDIST or any other software.

I'm looking someone to design and code for me an Access control based on Arduino. Access control should connect to web/mysql database periodically to check the list of RFID cards that are enabled to have access. The circuit must be designed to connect up to 10 RFID readers in parallel to one Arduino Mega. The distance between readers should be around 3 meters each. Developer must calculate the voltage drops and the amplification needed. For further informations please contact me.

A skilled wire person/box builder is required to assemble a test box for checking low-voltage connections for a prototype electric vehicle charging station. The test box will be in a standard off the shelf case (like an attache case) which opens up to reveal a panel. Behind the panel will be a circuit board that connects to a main connector and several test point connectors mounted on the panel. A 1m cable is also required that connects to the main connector and has a connector at the other end for connecting to the charging station for checking correct installation & operation. The job requires high quality soldered joints, cutting a panel to fit the case, driling and fitting the connectors. The job requires to be completed by end of March and a fix price quote will be required...

Need to design BJT amplifier with a resistor in series to input at KHZ frequency range for amplifying microvolts signal having more then 80 dB gain . Also have to perform noise analysis.

Description design of dc voltage outer loop, and inner current control loop.

What we need is an amplifier for a weak signal of 10-20 mW in the range of 20-27 MHz. The output signal has the same frequency and should have a strength of 8-10 V. In addition, the output frequency should be stabilized, as we expect billions of cycles and a Doppler

What we need is an amplifier for a weak signal of 10-20 mW in the range of 20-27 MHz. The output signal has the same frequency and should have a strength of 8-10 V. In addition, the output frequency should be stabilized, as we expect billions of cycles and a Doppler

What we need is an amplifier for a weak signal of 10-20 mW in the range of 20-27 MHz. The output signal has the same frequency and should have a strength of 8-10 V. In addition, the output frequency should be stabilized, as we expect billions of cycles and a Doppler

I need a schematic for a simple microwave amplifier based on Qorvo's TGA2521-SM and TGA4549-SM ICs

What we need is an amplifier for a weak signal of 10-20 mW in the range of 20-27 MHz. The output signal has the same frequency and should have a strength of 8-10 V. In addition, the output frequency should be stabilized, as we expect billions of cycles and a Doppler

What we need is an amplifier for a weak signal of 10-20 mW in the range of 20-27 MHz. The output signal has the same frequency and should have a strength of 8-10 V. In addition, the output frequency should be stabilized, as we expect billions of cycles and a Doppler

inverter interfaced low voltage ac microgrid

What we need is an amplifier for a weak signal of 10-20 mW in the range of 20-27 MHz. The output signal has the same frequency and should have a strength of 8-10 V. In addition, the output frequency should be stabilized as we expect billions of cycles and a Doppler reduction of the incoming frequency of around 1 Hz occurs with each cycle.

What we need is an amplifier for a weak signal of 10-20 mW in the range of 20-27 MHz. The output signal has the same frequency and should have a strength of 8-10 V. In addition, the output frequency should be stabilized as we expect billions of cycles and a Doppler reduction of the incoming frequency of around 1 Hz occurs with each cycle.

Design a DC-DC step-up voltage booster with the smallest footprint as possible. Input voltage: 3.5V to 4.2V (Lithium battery) Output voltage: 240V Output current: 15mA

to design a high voltage low current amplifier for a broadband signal generator, Frequency range 0.012Hz to 600MHz. i need voltage 360 vp-p with 0.001 resolution control.

I am looking for freelancer who can design sheet metal enclosure for charger designed to be used for Cellphone and laptops. Output wattage of the charger is 100 W and input voltage is 90-260 V AC. Size of the enclosure will be 45 mm X 85 mm x 26 mm . Product will be premium quality and needs to be well engineered. All the 8 corners will have some metal or plastic covers to protect sharp side of the charger woo have 2 USB A connectors and one type C connector and Polycarbonate sticker and on the rear side it will have 3 pin mains female connector. Trying to make it water resistant.

A startup company based in Africa. Am looking for an experience designer. 1) Stop button (general stop for all applications) 2) Cooking. Manual Start button (for cooking for rice with temperature s...minuets and stop. Motor to stop when overheating. 4) Auto. Start Button ( this to start the rice cooking, wait for a period of 5-10 minuets and start the mixer. 5) Buzzer. (when power is on. when rice cooking is complete and when mixer is complete. 6) Appliance inner chamber should have a temperature sensor of 120 degrees) 7) Indicator lights to show when cooker and mixer is on. 8) Output voltage for cooking and mixer is 110vac/ 20amps (2 Relays might be required ) 9) Cables to the cooker heaters, temperature sensors, control buttons, motor and sensors should be plug i...

Design a speed controller PCB for controlling the speed of a 500W BLDC Motor for e-bicycle. Voltage Range 24-48V. Current Rating - 20 A. Circuit should include 6 MOSFETS, a microcontroller, 3 gate drivers and associated electronics for it to work.

I am looking for someone to help me with 5 ways audio intercom system using STM32. The communication will happen over 2000 feet wire. We need signal amplifier to transfer data long distance wire. Please bid if you understand and know how to do this project.

using HFSS which is an Emag software, to create a system where we can transmit power wirelessly in an indoor room. a simulation of the room that has 3 or 4 transmitters (the sources of power that are made up of an amplifier and a horn antenna) and then sees how the power is distributed in the room. Also to see how moving the transmitters affects the distribution of power in the room.

I have an LLC that I own and operate. Need someone to run my social media and eventually control my website that is currently being made and will be done within a week. I’m also having a logo designed and will be completed in a few days. My company is a Low voltage landscape lighting installation business. We install low voltage lighting fixtures for homes, pathways, trees and other specific areas. I’m willing to have the right person work with me long term. I’m an off Duty First Responder here in the DFW area and would love to give someone the opportunity to work with me. Thank you, Micah Bernardy Bernardy Lighting LLC

The mask would be designed such that there will be a small mic connected at the inside bottom part of the mask(just below our mouth), the design of the mask would be such that it would be comfortable to wear and also breatheable through N95 respirator, the weight of the mask would be as low as possible. There would be an external speaker which will be connected via bluetooth with the mic. KIndly refer this link:-

I am working on a project. After doing mathematical modelling I have differential equation,I have intial conditions for that and other required values for the solutions .The differential equation is describing the relation between charge and time .can any one help in solving this equation and find out the plot for charge vs time,current vs time, voltage vs time .I also provide you a paper in which all theoretical steps are given along with the answers for the plots. You have to solve the equations using MatLab and the validate the graph with the exact plots given in the last of paper which I attached.

Hi, I wanted a buck converter design using TL594 or similar IC . Specification:- IP :- 60 to 40vdc Output variable from 0 to I/P current variable from 0 to 5A simple buck with pot to adjust current and voltage

Measurement and control of power system Components involved : ESP 32/8266 , SIM 800L or Equivalent , ACS 712 current sensor , Z series Voltage sensor , 16 A relay Job : Development of hardware layout . development of software for the board . Communication of the board to be via MQTT

Please contact me for a work simulation as soon as possible. Really need to fix many things. The system i study have: 1- a PV generator which delivers a power of 8280W working with a voltage of 48Vdc 2- a battery of 48Vdc 3- a bidirectional full bridge DC-DC boost converter with dual outputs which takes 48Vdc to 180V 4- a fault tolerant 5 - level inverter which takes 360Vdc to 220Vac 5- Frequency response 6- Fault diagnosis by Support vector classification The two first are already done, 3 and 4 are blocked for SPWM generation, and the other not done. So let me know what is required. With thanks and regards,

You know all details of project

...We have custom conditions, The product can only be a technical item which means that it should not be a consumer good but a industrial good. It can be a consumer good too somehow but should remain in the branch of technical items. It can fall in automotive category too. Below are some of the examples of such products, 1 Valves (Ball Valve, Gate valve , solenoid valve etc) 2 Pumps 3 Voltage meter 4 Voltage transformer/coverter 5 Conveyor belts 6 Sensors 7 Actuators 8 Circuit breakers. Other conditions, We want you to pick a product in which slight changes can be done on the baiss of improvement and a demand of improvement from customer side. The candidate will figure out how we can improve it with all the estimated costs after reading and analysing reviews of customer...

The front of the house is tired and needs some help. We want to have more usable patio space. To do t...while widening the door space. Ideally, this opening will be 10-12 feet, but does not go all the way to the east side of the structure. Cement seating can be built in to the support walls. We would like a fire pit located some place on the patio. The existing iron railings will be replaced with clear glass and attached to the vertical walls of the balconies and the stairs. There should be low voltage lighting in various places on the patio and the vertical portion of the stairs. The grade slopes downward toward the west. Please feel free to comment in my feed if you have any additional questions. I will be monitoring this project on a daily basis to provide you with timely...

A given BLDC motor, being run with MOSFET based BLDC driver draws current when running free or when under load. We need a system to: 1. Vary input voltage using digital settings. 2. Measure current drawn at a particular given voltage and display data accordingly. More details on subjected matter shall be provided to interested candidate.

Hello, we are developing a Bluetooth Stethoscope to improve listening to internal body sounds. Below are some of the design ideas & constraints for our device. Design ideas and constraints PCB: Dimension would be max 20mm x 80mm. Microphone on one end of the PCB and the Mini USB on the other end. On/Off Button roughly centered. Device will be connected to a stethoscope on one end, same as mic side. PCB should have 4 small screw holes for assembly to housing, holes may be used for pin holes. Bluetooth: Bluetooth classic may be one of the only options for this device because Bluetooth LE is not yet capable of streaming high quality sound. This is not a heartrate monitor device, but rather a higher quality sound streaming device for internal body sounds. Bluetooth LE w...

I want some to help me to suggest component for Hbridge for DC motor 12V 15 amp continuous current. operate on TTL logical voltage

Kérjük, regisztráljon vagy jelentkezzen be a részletek megtekintéséhez!

I have been testing several small Bluetooth boards from inexpensive earbuds and adding amplifiers. I would like to create a gerber file to send out to jclpcb that accomplishes the same tasks in a single small, inexpensive board

Design IR LED and Photo Diode/Photo Transistor Based Proximity Sensor Circuit for Daylight/Outdoor Application. Need to design proper Analog/Digital filter which allows the sensing of hand/object from at least 10 cm distance even in bright sunlight. Supply Voltage 5V DC. Please note that TSOPs are not to be used for this application. Scope is to provide schematic, BOM, calculations for Filters etc. We would create the prototype based on the provided schematic to evaluate the result.

FPC meter with Arduino to check voltage and diode

Need to combine a converter of sound to ultrasound with a microphone and amplifier;

Hi, The task is very small to design and make a small report of a DC-DC voltage converter. MutiSIM should be used. A good regulation be doe

power system information .system with all the inputs and outputs also at what voltage the switch change from what battery to another. what are the voltage wattages, amps from each input and output. also specify where the fan its connected in fact where everything is connected in the drawing. also in a different spreadsheet give all the specificatios of the system in this formahttps://www.freelancer.com/users/l.php?url=https:%2F%%2Fspreadsheets%2Fd%2F1XUqNhFswBtmArQ6B

I need audio amplifier to work up to 1Mhz and to deliver around 170W of power. I will need only simulation done in LT spice nothing else

Looking for circuit for a 4 feet LED baton tubelight with battery backup of min 3 hrs. LEDs to be configured in min 100 lm/w. Supply voltage 100-300 volts ac with 20watts, 50-60hz. 3KV surge protection. Will also need over/under voltage protection 8watts on battery and will last for min 3 hrs Will run on ac electricity on 20w and in case of power supply going off it will run on backup batteries. When ac supply resumes it will run on ac and also charge the batteries and cutoff after charging. THD less than 15% Will need Schematic, Gerber files, BoM for project to be complete

I need to do program work (software) for different types of excitation system (Ac, Dc, and Static ) with synchronize generator connected to the infinite bus, Every type has 2 models and compares them in the terms of: 1- time response 2- ceiling voltage. 3- Settling Time 4- CCT(critical clearing time ) The requirement: 1-Electrical engineer 2- Expert person in Matlab or Pscad 3- Analysis person 3- deadline will be in a very short period

full-service electrical contracting firm for ... in general construction, manufacturing, healthcare, education and information ... voltage work, design-build services, award-winning sign design & installation, and more.