PCB Schematic Review & Optimization

I need a schematic review and component optimization for a circuitry I designed.

The board features a PoE+ connection, Ethernet Phy, battery charger, battery gauge and protection, microcontroller, Buck converter, and LDO. It is powered by a 2s4p battery pack (Li-Ion) or PoE+. The battery pack is charged over PoE+. A block diagram can be found attached.

The board has a high component count: >300 components whereas 150 of them are unique.

The goal of the project is to perform a schematic review and optimize the schematic for costs and lower component count. Optimizations should include:

- unifying of resistor and capacitor values

- optimizing input/output capacitors for the converts

- unifying MOSFETs

- checking for cheaper alternatives for the most expensive parts

Once the project is agreed, I will provide full schematic and BOM. Also I will attached a little questionair with general questions to this topic.

The deliverable should be a report (e.g. simple excel, word or powerpoint) with the suggested optimizations and calculations.

Note: Good knowledge required on battery chargers, DC/DC converter, PoE PDs.

Taidot: Piirilevyn asettelu, elektroniikka, sähkötekniikka, Mikrocontroller, Piirisuunnittelu

Tietoa työnantajasta:
( 1 arvostelu ) Graz, Austria

Projektin tunnus: #23654252

Myönnetty käyttäjälle:


Hi! According to the attached block diagram it is not possible to answer the questions on your post but I suppose that some resistor and capacitor values could be unified and possibly the component count also could be Lisää

€400 EUR 10 päivässä
(14 Arvostelua)

20 freelanceria on tarjonnut keskimäärin 534€ tähän työhön


Hi, I have 8 years experience on hardware development. I'm very familiar with ESP32 for Both hardware and firmware side. I have read your attachment and it used ESP32. I have working on various projects from hobbyst, Lisää

€450 EUR 30 päivässä
(70 arvostelua)

Hello.. My mame is Maria. I am an electronic engineer with a lot of experience in circuit design. I would like to do this project for you. Write me to discuss further

€705 EUR 15 päivässä
(13 arvostelua)

Hi, I am an experienced electrical engineer and embedded systems specialist. I have worked on POE, PD, Battery chargers, RF layout and switching buck boost converters. I also have skills in optimizing BOM for proto Lisää

€705 EUR 15 päivässä
(39 arvostelua)

hello i have reviewed your project description and i am interested on it. i have a good experience in PCB and embeeded systems schematic design. we can discuss more details on private chat. regards. zakaria

€450 EUR 30 päivässä
(53 arvostelua)

Hello, I'm interested in this project. I have notable experience with electronic design and made a lot of project with cheap power components. Please, take the time to discuss details in the chat. Relevant Skills and Lisää

€882 EUR 10 päivässä
(27 arvostelua)

Hi I have gone through your requirements do share ur schematic I am sure we can provide u updated and cost effective alternate components for mass production.

€764 EUR 15 päivässä
(16 arvostelua)

HEllo. I am interest in your job. Regards. ////////////////////////////////////////////////////////////////////////////

€500 EUR 7 päivässä
(41 arvostelua)

hello i am highly interested to work with you on this project and can assure you quality [login to view URL] you

€450 EUR 7 päivässä
(3 arvostelua)

I will do:- Simple to advanced Circuit design and analysis using software tools such as KiCAD, Proteus, Altium Designer, Allegro, PADs, and Eagle My package provides the following services - Schematic d Lisää

€555 EUR 8 päivässä
(12 arvostelua)

Hello, I am interested in your project and I hope to help you realize it, I am passionate about electronics and embedded development and I hope to share with you my knowledge and experience. I can do this work in 3 da Lisää

€400 EUR 3 päivässä
(2 arvostelua)

Note: Please Click “CHAT” then simply leave a simple message like “HI THERE” . We will respond quickly as possible. Good Day! We are a team of Architects, Engineers, Artists, and Animators here. I am an Arch Lisää

€250 EUR 1 päivässä
(1 arvostelu)

Hello, I am very confident about your project because I have developed lots of IoT devices and battery management systems, and I have rich experience with battery chargers, DC/DC converter (BOOST, BUCK), and PoE (Power Lisää

€500 EUR 7 päivässä
(1 arvostelu)

Hello. Nice to meet you. I am very interested in your project. I have rich experience for embedded engineering-PCB design, firmware development, prototyping and mass produnction. I am familiar with many CPUs such as PI Lisää

€500 EUR 7 päivässä
(1 arvostelu)

hi I am an electrical engineer I can do this task for you feel free to contact me.

€555 EUR 5 päivässä
(1 arvostelu)

Hardware design experience in embedded,VLSI, IoT and dc-dc.

€555 EUR 10 päivässä
(0 arvostelua)

hello Thank you for visiting my proposal. I've just read your job post carefully and much interested in your project and I am sure I can complete this in time perfectly as you want. I'm a seasoned expert. I'm an Embedd Lisää

€500 EUR 7 päivässä
(1 arvostelu)

Interested to do this. I am having best practices in charging Lion, Lipo and LiFePo4 batteries. Lot of work done with Power supplies, POE and Magnetics. Basically, i am having the board similar to your design with a di Lisää

€750 EUR 7 päivässä
(0 arvostelua)

I’m mechatronic engineer with 3+ experience on pcb schematic, I have the knowledge to make u project.

€555 EUR 10 päivässä
(0 arvostelua)

Hi, Design over ti ethernet MCU(TM4C1294NCPDT), Buck converters upto 300W, optimised layout with minimum noise. I have designed POE board with Gigabit ethernet. Optical ports. Task that i will do for you, 1. Review ci Lisää

€250 EUR 5 päivässä
(0 arvostelua)