Hardware low-voltage battery protection circuit

We have a battery powered device (16.8V lithium ion) with an on board microcontroller. If the battery falls below a critical level, as measured by the uC, it goes into sleep mode. We would also like a hardware low voltage protection circuit to prevent further discharge; ie 100% cutoff and zero current drain when the battery falls below 12 volts. The solar charging circuit needs to remain operational. When the battery voltage rises above 12V, the device should operate correctly as before.

The power part of the circuit is as attached.

PWR take off is for high current devices (pump) which takes up to 6 amps.

12V take off is for running sensors.

3V3 is for electronics.

Q7 provides current limited charging from PV; limited to 500mA.

Only the schematic is needed. We will take on the PCB design and testing here.

Components used must be from [login to view URL], and in stock.

Minimum parts possible please.

Beceriler: Elektronik, Elektrik Mühendisliği, Devre Tasarımı, Mikrodenetleyici

Daha fazlasını gör: battery protection schematics circuit, battery short protection circuit diagram, battery protection circuit diagram, battery charger protection circuit diagram, safety protection circuit battery nokia, battery protection circuit ion battery schematic, ion battery protection circuit schematic, 12v battery protection circuit, supply voltage battery switch circuit, supply voltage battery switchover circuit, volt lead acid battery voltage circuit protection circuit diagrams, lithium ion battery protection circuit, led driver circuit powered ion battery, pcb battery protection circuit, li-ion battery protection circuit schematic, battery protection circuit module, 18650 battery protection circuit, dc voltage spike protection circuit, voltage spike protection circuit, tp4056 module with battery protection circuit

İşveren Hakkında:
( 4 değerlendirme ) Cardigan, United Kingdom

Proje NO: #30994581

Bu iş için 31 freelancer ortalamada £178 teklif veriyor


Best Circuit Design Expert at your doorstep! Dear Client, We have more than 15 years of hardware low voltage protection circuit so we able to do this project for you. We can provide a hardware low voltage protection c Daha Fazla

£250 GBP in 2 gün içinde
(36 Değerlendirme)

Hello, I have experience in designing electronics circuits and can design your PCB. I will design your PCB in eagle CAD and will provide you Gerber files, BOM and Pick n Place files. I can also help you getting the PCB Daha Fazla

£200 GBP in 10 gün içinde
(66 Değerlendirme)
(141 Değerlendirme)

Hello, I had work with Power Delivery and Distribution Power using a battery, I can think about how to do it better for your application, with optimal use of components.

£250 GBP in 7 gün içinde
(43 Değerlendirme)

Hi I am interested to your project. I am familiar with electronics, microcontroller as well as PCB design by Eagle. Thanks.

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% GBP
(94 Değerlendirme)
(29 Değerlendirme)

Although this is very crude design, but the charging part is not very efficient. Also, I am not sure how your Li-Ion battery balancing is done. Is it at the battery pack already ? However, there is a very good and effi Daha Fazla

£450 GBP in 7 gün içinde
(46 Değerlendirme)

Dear Client. I have just read your job description and your project is really interesting to me. I have many experiences working for 12+ years with Circuit design, PCB design, manufacturing functional prototyping with Daha Fazla

£250 GBP in 2 gün içinde
(4 Değerlendirme)

Hello dear project owner I am an Electronic engineer with experience in embedded systems designing and PCB designing i can do this in minimum time.

£250 GBP in 3 gün içinde
(13 Değerlendirme)
(77 Değerlendirme)
(26 Değerlendirme)

Thanks for Freelancer which gives chance to meet you. I hope you are good. I have read your description carefully and understand everything. I have 12 year experience on analog design, power electronics.I will design Daha Fazla

£84 GBP in 5 gün içinde
(25 Değerlendirme)

Hello, I am an electronics and telecommunication engineer and I am quite experienced with hardware and embedded systems' design. I have designed many PCBs and I am quite experienced with EMI. I have checked your requir Daha Fazla

£135 GBP in 7 gün içinde
(24 Değerlendirme)

Hi Before i have designed the PCB that can measure the battery voltage with microcontroller(I used the STM32). Also the board has the other functions. I can complete your project. Please contact me.

£250 GBP in 7 gün içinde
(6 Değerlendirme)

FREE OF COST CONSULTATION Dear Client, I have lots of experience in Hardware Circuit Design so I will able to do this project it for you. I can design Hardware low-voltage Solar battery protection circuit with Schemat Daha Fazla

£200 GBP in 2 gün içinde
(3 Değerlendirme)

Hello... Are you looking for circuit designer ?I am experienced circuit designer and electronics engineer. I can draw your schematics easily. I am 100% sure I can do your task in no time. Send me msg then we will disc Daha Fazla

1 gün içinde %bids___i_sum_sub_32%%project_currencyDetails_sign_sub_33% GBP
(23 Değerlendirme)

I hope you are fine. I am a senior electronics engineer. I have rich knowledge of embedded system design and PCB designing. I have understood the project description, i am 100% sure i can complete your task. I will Daha Fazla

£30 GBP in 5 gün içinde
(15 Değerlendirme)
(13 Değerlendirme)

Hello sir. I hope to work with you because your project is very familiar to my past works. [login to view URL] I have 9+ years experiences in Electrical En Daha Fazla

£250 GBP in 7 gün içinde
(11 Değerlendirme)

Hi there, I'm an electronics engineer who has built solar charge controlling circuits, I understand the needs for a battery protection circuit and also have built that into my designs. I have 4 years of experience opti Daha Fazla

£170 GBP in 14 gün içinde
(8 Değerlendirme)