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.
Bu iş için 31 freelancer ortalamada £178 teklif veriyor
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.
Hi I am interested to your project. I am familiar with electronics, microcontroller as well as PCB design by Eagle. Thanks.
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.
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.
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