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Shall i use Doubler circuit using MCP1640 with single AA battery power supply for nRF52832?

vishal

Hello Sir,

I have developed small and compact product using nRF52832 Soc. Due to size limitation and device is portable. I have attached snap shot of power supply circuit as per this circuit this switch is use only for ON device and after some period device will completely shut down not in sleep mode it achieve by MCP1640 EN pin = 0.

This doubler IC EN pin is control in nordic program by define on GPIO pin when momentary switch press EN high and nRF52832 chip ON and then quickly logic high is provide to MCP1640 EN pin in program. After some specified period it will automatically go to shut down by EN= GND. This logic we are using for power save to improve battery life. For controlling enable pin i am using n Channel Power MOSFET with very low VGSth.image description So sir please give me suggestion can i use this type of power source.

  • 0 in reply to MartinBL

    Hi Martin, We have decide to use doubler circuit in my application, but as off now i am not use the above circuit for power source, My application is very simple simply collect sensor data and send to android mobile apps using BLE nRF52832. We have decide to use circuit for powering to Nordic using MCP1640 doubler IC as per given in their datasheet Herepage no 2 so please tell me is it right for long term application. My device is portable and communicate via BLE. In this given circuit is it need to add any other extra components add in my circuit e.g. reverse voltage protection or any other for power supply to nRF52832 chip. Please sir check this data sheet and if i use this circuit is it any extra current energy consumption. My device consume current upto 3-6mA. let me know for your valuable suggestion and any other thing. Thanks.........

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