Multistage transistor amplifieremplois
...(soit 18h28 environs d'enregistrement à transcrire). - merci aussi de bien vouloir candidater en français (il s'agit de transcription en français de discussion effectuées en français). Le projet consiste à transcrire des fichiers audios contenant des enregistrements de discussions en français. Cela nécessite un Français parfait, de savoir se servir de microsoft word et aussi parfois de savoir amplifier le son. Une première expérience est un plus. Exemple : - Bonjour, - Bonjour, comment allez vous ? - Bien, merci ! -... Vous trouverez, ci-joint, une photo de la liste des fichiers qui seront à transcrire et leurs durées. Concernant le payement : - L'audio doit ê...
Bonjour, Je cherche actuellement à obtenir une horloge qui allume un système d'envoi de données quelques secondes toutes les 4 heures puis tombe en veille profonde (deep sleep). Basé si possible un atmega328p ...toutes les 4 heures puis tombe en veille profonde (deep sleep). Basé si possible un atmega328p ou plus petit mais facilement programmable. Je fourni déjà une parti du code si besoin. Sinon il est tout a fait possible de repartir de zéro. Le schéma joint explique le montage global et le code fonctionne déjà cependant, de manière aléatoire, arrive un moment ou l'horloge reste allumé et ferme le transistor qui fait vider les batteries qui utilise le capteur et l'...
Bonjour J'ai besoin d'aide pour résoudre quelques questions en électronique analogique Transistor bipolaire. ....
Bonjour J'ai besoin d'aide pour résoudre quelques questions en électronique analogique Transistor bipolaire. ....
I am seeking a seasoned PCB designer for my upcoming project. The project involves the design of a double-sided PCB to be used in an embedded system for a power electronics, consumer product...understanding of PCB design for embedded systems - Experience with power electronics The primary function of this PCB is power management. Thus, proficiency in optimizing PCB designs for energy efficiency is highly desirable. The PCB should include the following features/components: - Microcontroller - Voltage regulator - Display interface - Resistance - Capacitor - Diodes - Integrated Circuits - Transistor - IGBT - MOSFET Experience in integrating these components on a double-sided PCB is mandatory. Please detail your related experience and skills in your bid. Looking forward to seeing ...
I am looking for small micro controller programmer for my music play application. I want to play preloaded music from micro internal flash memory. We have TDA2030 ic as amplifier so programmer need to generate pwm and send to amplifier ic. We have pcb ready with aplifier IC and power supply. Programmer can choose any low pin low cost MCU which is easily available in indian market.
I'm seeking a capable marketing consultant with a robust track record in non-fiction literature. The major objectives of this campaign are: - Increasing book sales - Targeting professional adults It's essential that you have: - Deep experience in marketing non-fiction books - Extensive knowledge of how to engage professional adults effectively - A history of successful book marketing campaigns I have published 3 books: Showcase your creative strategies to broaden the reader base and maximize sales. Let's work together to make this book a success. Thanks.
Description: We are looking for an experienced electronics engineer to develop a PCB design for a small project using the ESP32 microcontroller. This project involves controlling both Line In and Line Out audio through an amplifier. The schematic for this setup will be provided to you. Project Details: Microcontroller: ESP32 Functionality: Control Line In and Line Out audio via an amplifier Additional Component: Integration of an MP3 module, which is to be triggered by AT commands and also through Serial communication. Deliverables: Complete PCB design files ready for manufacturing, including Gerber files, BOM, and assembly drawings. Requirements: Proven experience in PCB design and electronic circuit design. Proficient in using PCB design software (please specify which s...
Looking for an RF expert that can give me a circuit of a Cheap easy to build circuit of an RF Amplifier that can transmit up to 150km line of sight with design of Antenna. This person will also present a simulation data showing that this works and everything is working as we intended.
I'm seeking a graphics artist with strong proficiency in CorelDraw. The task involves creating a modern and sleek design for an amplifier's front panel. Ideal Skills and Experience: - Proficient in CorelDraw - Experience in designing audio electronics - Ability to design sleek and modern aesthetics
Looking for an experienced designer with expertise in CorelDRAW to assist in the design phase of a new audio amplifier front view and back view All the details will be shared. There are 4 drawings in all Please apply only if you can finish the project today
I require a skilled Electronics Circuit Design Engineer to create a power amplifier circuit for me. The desired specifications for this project are as follows: - Input: +12v, -12v square wave (bipolar/monopolar) - Frequency Range: 0.1 Hz to 1000 Hz - Output: +100v, -100v - Load: 500 ohms - Output Current: 200mA Key requirements for this project: - Designing a power amplifier circuit that can handle the specified input and output voltage. - Ensuring the frequency range is between 0.1 Hz to 1000 Hz. - The output should be capable of driving a load of 500 ohms with 200mA output current. Skills and experience required: - Proven expertise in Electronics Circuit Design, particularly in designing power amplifiers. - Proficiency in managing both bipolar and monopolar input. - Soli...
I am seeking a talented Instagram marketer with an in-depth familiarity with maximising follower engagement. As a brand, our primary goal is increasing engagement with our already established follower base, more than driving website traffic or spreading wide brand awareness. My vision for the Instagram campaign focuses largely on: - The promotion and application of user-generated content. As a skilled marketer, you must have a creative approach to leverage this type of content and encourage more active participation from our followers. An ability to identify potential user trends and integrate them into our strategy will be particularly valuable. The ideal freelancer for this project would be someone who has: - Deep understanding of Instagram as a marketing platform - Solid experience ...
...Pi with a keen understanding of its intricacies, specifically someone with experience dealing with its diverse components such as LEDs, buzzer, and magnetic door locks. The only thing I can think of that might’ve changed is that we got this project shipped from my home country. It was working fine but when it arrived here it’s not anymore. There might be an issue with the power supply or the transistor or maybe the relay. Key tasks include, but not limited to: - Troubleshooting the issue; Why did they stop working? - Repairing or suggesting suitable replacements if necessary The issue is most probably something small as the software and code are running fine but I can’t figure it out and need someone to fix it An error-free operation is what I'm aiming...
I need a power amplifier designed for a 28nm CMOS technology. Since the maximum power output, frequency range, and target application have not been specified, the freelancer needs to be skilled in various amplifier designs and also have flexibility to adapt the design according to different project requirements. Ideal Skills: - Integrated circuit design - Solid background in CMOS technology - Experience with power amplifiers -Cadence Design Systems Experience with wireless communication, RF signal and audio processing would be a plus. Please make sure to detail your portfolio and previous experience in power amplifier designs when submitting your proposal.
As an ecommerce platform targeting an audience of broad age range from 18-65, we're looking for a talented Digital Marketing specialist who can devise and execute a strategy to increase website traffic significantly. Currently, we leverage social media marketing and search engine optimization (SEO) techniques. However, we believe there's much room for improvement, and we're open to exploring suitable emerging/new channels in pursuit of our goal. This role requires: - Expertise in SEO and Social Media Marketing - A deep understanding of audience demographics and how to cater to them - Previous experience in Ecommerce traffic improvement - Strong campaign monitoring and reporting skills - Creativity in formulating unique strategies for market penetration.
I need a power amplifier designed for a 28nm CMOS technology. Since the maximum power output, frequency range, and target application have not been specified, the freelancer needs to be skilled in various amplifier designs and also have flexibility to adapt the design according to different project requirements. Ideal Skills: - Integrated circuit design - Solid background in CMOS technology - Experience with power amplifiers -Cadence Design Systems Experience with wireless communication, RF signal and audio processing would be a plus. Please make sure to detail your portfolio and previous experience in power amplifier designs when submitting your proposal.
I need a skilled and experienced engineer or designer to help create a filament design for my vacuum tube. I have specific requests regarding its type, function, and structure. - Filament ...temperatures. - Intended Function: The vacuum tube will be used for audio amplification. As such, the filament design needs to factor in accuracy and lucidity in sound transmission. - Filament Structure: The desired design is a coiled coil. This structure is known for its efficiency and I believe it can boost the audio amplification capabilities of the vacuum tube. Freelancers with background in tube amplifier design or similar projects will have a significant advantage. Equally important are strong knowledge of materials engineering, specifically Tungsten, and proven track record in 3D desig...
...ignition element when in close proximity. Key Requirements: - The circuit should be sensitive to the electric spark up to 30cm. - Upon detection, it should trigger a signal for about 100 to 400ms. This integration aspect is crucial as the electrical signal will be interfaced with other systems, not an audible or visual response. - system needs to be immune from other non-spark-like event as sound amplifier, small smoke generation AC pump in vincinity (but can be at more than 30 cm of the circuit) - circuit should run at 3.3v and generate a detection signal at 3.3v too. Signal will be push-pull. - only schematics is needed, but with some proof of validity. - circuit must not rely on light detection. It must detect EM perturbations with the most probable signature for the sourc...
I am seeking guidance on...time the application is launched. To streamline this process, I am seeking to programmatically set the properties as described earlier. To provide some context, I am utilizing the library, which currently controls camera control properties such as exposure, tilt, zoom, focus, and other related features. However, I am specifically in need of controlling video Processing amplifier properties. We are currently seeking a skilled C# developer with prior experience in working with USB cameras to help us find the library or the function that would do the job. If you possess the required expertise and are interested in exploring this opportunity, we would love to hear from you. Please let us know if you are available to discuss further. Thank you.
...project, please look at PDF description: The mechanical system that needs to be developed consists of 3 different main parts: - a DC motor (3V7) with gearbox, - a short plastic piece X connected to motor shaft (rotating RED COLOR) - a long plastic piece Y connected to X and use grease and mounted on external shaft (indicated by PINK COLOR) A printed circuit board will be equipped with the correct transistor drivers while the motor signals (pulsating or not) will be generated by a microcontroller The intention of this design is that 2 identical pieces of Y (call Y1 and Y2 for reference purpose) can move synchronously together (exactly same movement) or individually (opposite of each other lets say or one moving and the other one stand still) and this with just 1 single motor drive...
My Fanuc robot is currently displaying err...message isn't clearly defined, so a strong understanding of a range of Fanuc robot issues is necessary. - Quick Problem Solving: The ideal person for this job would be able to swiftly diagnose and address the root of these error messages. - Expert Knowledge: A thorough understanding of Fanuc robots, their software, and potential errors is crucial. Familiarity with both axis overload, servo amplifier faults, and system alarms is ideal. - Tight Deadline: I require the repairs to be completed as soon as possible, so a freelancer capable of providing immediate solutions would be an excellent fit. Your strong background in robotic repair and quick problem-solving skills will be greatly beneficial to swiftly get this robot back in ...
I am in the look out for creative strategies to give me ideas to produce content for social media. Will hire after a trial - giving an idea on any project you’d like. You don’t have to design anything just via text so see the level of creativity for the trial.
...voltage transistor microcircuit. The primary function of this microcircuit is switching between two circuits, not to amplify signals. We need to present a 5.1K GND to one of two GPIO pins on an MCU depending on the state of sensor output that throws a 5V high/low output on one single line Key Project Details: - The circuit should be designed to operate at low power levels to minimize power dissipation. - The preferred material for the transistor is Silicon. Ideal Skills and Experience: - Electronics engineering - Transistor theory - Circuit design and analysis - Experience working with silicon transistors and low voltage systems Your bid will be more competitive if you can provide examples of prior experience designing and building similar silicon-based low ...
I'm in need of an experienced specialist in PCB designing, specifically for a medium-sized, high-power output audio amplifier (150W and above). Key Aspects: - The amplifier should support only analog inputs. - The desired audio power amplifier PCB should be of a medium size, suitable for high output power of 150W and above. Preferred Skills: - Proficiency in PCB Design - Familiarity with audio engineering concepts - Proven experience designing high-power audio amplifiers.
We are seeking a freelancer with expertise in the Finite Element Method (FEM) and semiconductor physics to assist with solving a set of semiconductor transport equations for a MOS-transistor simulation, provided in German. The project entails discretizing the Poisson equation and the continuity equations for electron and hole charge carriers, applying appropriate boundary conditions, and solving the resulting nonlinear system of equations. Objectives: Discretization of Equations: Employ FEM to discretize the Poisson equation and the electron and hole continuity equations for a 2D MOS-transistor model, as described in a German-language exercise sheet. Boundary Conditions: Implement Dirichlet and Neumann boundary conditions in alignment with the semiconductor device geometry ...
...Powerline Networking. This board will be specifically for audio playback, converting digital signals into analog audio. The ideal freelancer for the project will be proficient with the following: - Designing and building DAC boards - Knowledge of audio playback technology, specifically analog - Power supply design for battery-operated devices Your task will be to create a prototype streaming DAC amplifier board that operates on battery power and successfully converts digital signals into quality analog audio. Proficiency in circuit design, audio technology, and sustainable power supply integration will be critical to fulfilling this role successfully. Previous experience with DAC design and an understanding of audio signal transmission will be highly beneficial. Design and B...
...Converter) Board. This board will be specifically for audio playback, converting digital signals into analog audio. The ideal freelancer for the project will be proficient with the following: - Designing and building DAC boards - Knowledge of audio playback technology, specifically analog - Power supply design for battery-operated devices Your task will be to create a prototype streaming DAC amplifier board that operates on battery power and successfully converts digital signals into quality analog audio. Proficiency in circuit design, audio technology, and sustainable power supply integration will be critical to fulfilling this role successfully. Previous experience with DAC design and an understanding of audio signal transmission will be highly beneficial. Qualifications: ...
...is an amplifier and every other detail relating to the design will be shared via a private chat. Ideal Candidate: The ideal candidate should be someone who has a solid understanding and extensive experience in analog circuit design using Multisim. I will be discussing the specific components and manufacturers to be used for this project in our chat. Familiarity with a broad range of components is beneficial, as the chosen candidate should have the flexibility to use any components that suit the design. Skills Required: • Proficient in Multisim • Extensive experience in analog circuit design • Knowledge of various component manufacturers • Excellent communication skills. With these requirements, I am confident that we will be able to collaborate to crea...
...school project, I'm in need of a proficient individual who can help me design a compact and portable audio amplifier, which could be integrated with Bluetooth functionality. If your expertise lies in creating audio hardware that has the capability for both music playback and wireless connectivity, I would be thrilled to discuss further. Ideal Skills and Experience: - Knowledge of electronic circuits, specifically audio amplifiers - Experience with Bluetooth technology and connectivity - Ability to develop compact and portable solutions - Proven background in similar projects - Hands-on experience in music playback systems Objectives: - Design and develop a compact, portable audio amplifier - Integrate Bluetooth functionality for wireless connectivity - Prioritize e...
I am seeking a freelancer with a strong background in Si...freelancer with a strong background in Signal Generator & Radio Frequency (RF) amplification/antenna design for a project I am working on. The goal of this project is to design a signal generator and RF amplifier that can be adjusted between 42-45 kHz ±0.1kHz with adjustable output power ranging from 1-5 Watts ±0.1W. Additionally, it would require the design of a base or center-loaded antenna approximately 3 meters in length. The power supply should be able to function with 120VAC 60Hz. This project needs someone with the following skills: - Frequency generator design - Knowledge of RF amplifier design - Proficient in antenna design, specifically prioritizing compactness - Understanding of electron...
Project to develop a printed circuit board and components for preamplifier for acoustic guitar. With tuner, volume, bass, middle and bass control.
Pls refer the attachment Prerequisite software Virtusso freepdk 15
I need an expert in electrical engineering and physics to design and build a high voltage amplifier. This will be specifically used for scientific research in the field of physics, more particularly for electromagnetism experiments. Ideally, the professional should have had previous exposure to and understanding of the requirements and constraints of such scientific appliances, to ensure precise results and safety. Skills and Experience Required: - Advanced knowledge about high voltage amplifiers; - Practical experience in physics with a focus on electromagnetism; - Previous work with scientific laboratory equipment is an advantage; - Attention to detail and accuracy is a must, as these are critical in scientific research scenarios; - Ability to deliver within a specified timeline ...
...connecting components but creating a robust and versatile system capable of performing tasks autonomously and efficiently. If you have a knack for microcontroller programming and an innovative mindset, I encourage you to apply and help bring this project to fruition. Here is the project: I am using an Adafruit Feather Adalogger board to attach a 16 neopixel ring and an Adafruit speaker with built in amplifier as well as a couple buttons. Here’s what I want the program to do: Step 1 Toggle LED switch to send power to board Step 2 Push momentary button to start program sequence Step 3 Play a wav file I have setup with Audacity to a mono file with a 22050 sample rate (I think that’s the right rate) Step 4 while playing the wave initiate a LED sequence ( I already ha...
...project is the implementation of a strain gauge amplifier with CANbus output. This system will play a crucial role in enhancing test precision and reliability. **Project Requirements:** - **Development of a Strain Gauge Amplifier:** The amplifier must accurately process signals related to vehicle load and convert them into a format that can be transmitted via CANbus. Efficiency and accuracy are paramount. - **CANbus Integration:** The system must ensure seamless transmission of data through CANbus, allowing for real-time monitoring and analysis. **Ideal Skills and Experience:** - Proficiency in automotive electronics and system integration. - Experience with CANbus communication protocols. - Skilled in designing and implementing amplifier circuits, parti...
I'm on the hunt for a skilled TikTok content creator who has a knack for crafting videos that don't just get views, they generate leads and enhance brand awareness specifically for a women's audience. If you're someone who knows the ins and outs of making engaging reels and stories, this project is for you. **Goals:** - Increase brand visibility. - Create engaging, lead-generating content tailored to women. **Target Audience:** - Our content is specifically designed for women, aiming to captivate and connect with this demographic. **Branding Guidelines:** - I have specific branding guidelines that will be shared. This includes color schemes, tone of voice, and the overall aesthetic that should be maintained across all content. **Ideal Skills and Experience:** - Prov...
The Proposal will include adding audio amplifier, adding capability to lower power consumption by turning off DFPlayer and audio amplifier when not used and removing DC/DC converter to take only 5V input, it will also include adding eFuse or other more advanced circuit protection system.
Hi Aleksander - I have come to the point where I am again in need of your skills on the Talk Box Project. Are you interested in an available to help me advance it to the next phase? - The DC/DC convertor on the prototype is no longer available. I can take 5v power though. - I need an amplifier for the audio. - I need a power saving circuit to disable the DFPlayer and amp when not in use. I've run out of characters to type here, let me know your thoughts!
...stages from whitelist to public phase, and we're in need of a proficient smart contract developer who specializes in the Binance Smart Chain (BSC) platform. Our goal is to ensure a fair and efficient token distribution, backed by robust functionalities that cater to our project's unique needs. **Core Requirements:** - Development of a smart contract on Binance Smart Chain. - Implementation of a multistage presale mechanism, including: Whitelist, Early Bird, Stage 1-7, and Public Phase. - Allocation of total tokens across different phases as provided. **Key Functionalities:** - **Automated Liquidity Pool Allocation:** Ensuring a smooth automatic transfer of a portion of the sale proceeds into a liquidity pool. - **Dividend Distribution Mechanism:** Automatic distributi...
I'm initiating a project focused on developing a high-voltage amplifier capable of boosting signals to a significant level for specialized radio applications. This unique and challenging project requires the design and implementation of an amplifier that can elevate a 12V supply through a transformer to output 10kV to power a neon lamp with frequency switching capabilities. Here’s a concise overview of my requirements and the ideal skills I’m looking for in a freelancer: **Core Requirements:** - **Design a voltage amplifier** that takes a 12V input and outputs at 10kV to drive a neon lamp, indicating a successful boost in voltage. - **Frequency switching range** should be versatile, accommodating anything from 10 Hz to 30 kHz, to suit a variety of app...
The ideal candidate willl work on commission because they know they have to produce results. As a corporate executive, I am in need of a resourceful freelancer who possesses broad industry knowledge. Your skills and experience will be put to use in a quest to increase sales results. The ideal candidate should have: - Comprehensive grasp of diverse industries - Proven strategies to boost corporate sales - A keen understanding of the corporate executive mindset and needs Let's work together to formulate and execute high-impact strategies that propel sales numbers upwards. Please come prepared with a concrete action plan on how to meet this primary objective.
Ive got a IO board made for RPI CM4. Peripherals: 5x Proximity sensors (GPIO 5, 24, 23, 17) 2x RPi Cam Module v3 1x DC motor (24V 2A) DRV8874 (EN - GPIO13, PH - GPIO 18, nFAULT - GPIO 14, nSLEEP - GPIO 27 1x Microphone (IS2 MEMS, SPH0645, SPI0_CE0_N - GPIO 8, SPI0_MOSI - GPIO 10, SPI0_MISO - GPIO 9 - using all these on ALT4 function mode on CM4) 1x Amplifier + Speaker via mono PWM audio output on GPIO12 1x Press button (GPIO 11) 1x Status indicator LED (GPIO 25) 1x Temp sensor (GPIO 2) As a cost saving solution I wish to change this Rpi CM4 to a Orange Pi CM4 using the same IO board. Orange Pi CM4 has one ALT1 function. The question is if I can really interchange RPi with OPi CM4. Scope of this project: * Writing a custom firmware based on Python, Armbian or Orange Pi OS. * T...
I'm seeking an experienced RF designer with a strong background in GaAs technology to create a Low Noise Amplifier (LNA) tailored for the telecommunications industry. This project aims to develop an LNA that operates in the 8–12 GHz frequency range, with specific attention to gain, noise figure, and bandwidth specifications. **Requirements:** - **Design an LNA** within the 8–12 GHz frequency range - Ensure the **LNA meets specified criteria** for: - **Gain:** Achieve the highest possible gain within operational parameters - **Noise Figure:** Minimize noise to enhance signal quality - **Bandwidth:** Ensure broad enough bandwidth to support telecommunications applications - Utilize **Gallium Arsenide (GaAs)** technology, leveraging its benefits for high-freque...
I'm seeking an experienced mobile app developer to create an application that functions as a remote control for my amplifier via Bluetooth. Here's what I require: - **Compatibility:** The app must work flawlessly on both iOS and Android devices. - **Functionality:** - Input source selection with editable names - Volume adjustment capabilities (up and down) - Mute function - Power on/off toggle - **Connection:** Use of Bluetooth technology to communicate with the amplifier's RS232 interface. **Ideal Candidate Skills:** - Proficient in iOS and Android app development - Experience with Bluetooth connectivity in mobile apps - Knowledge of RS232 interface protocol - UI/UX design experience for intuitive app interfaces - Ability to test for compatibility acro...
Looking for a vibrant and innovative partner to take our brand's online presence to the next level. Expertise in social media and captivating content creation is key, as we aim to engage and grow our customer base. Here's what I'm envisioning: - Social Media Management * Cultivate our image on Facebook, Instagram, TikTok, and Pinterest * High-frequency, high-quality posts aligned with our brand's voice * Grow our following and increase user engagement across platforms - Content Creation * Develop unique, visually appealing content that resonates with our demographic * Craft engaging stories that reflect brand values and attract ages 18-44 * Drive traffic and conversions through compelling calls-to-action Ideal Candidate: - Proven track record in social me...
I'm looking someone to help me to design/capture a schematic based on Small Led PWM Driver(must include a power supply, transistor driver for the LED, MCU and UART Interface). Must be done for KiCad V5 or V7. I will provide you the circuit guideline, schematic components and footprints. Please only bid if you have previously experience with KiCad. Include the text "kicad mciau" in your proposal description. Regards
