All Questions
Tagged with coin-cell battery-charging
5 questions
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Powering RTC DS3231 through BAT pin while keeping the coin cell battery in place
I'm working on a battery-powered DSLR camera controller with a MCU (ATMEGA328P) that spends most of the time in deep sleep and a RTC (DS3231) that wakes up the MCU a few times a day to take a picture. ...
- 183
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ML2032 battery charger
I have recently bought some rechargeable ML2032 cells and also bought a charger for it.
Unfortunately the charger does not work, so I tried to find alternatives, but here the problem starts. According ...
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Circuit for charging a coin cell battery while also powering main circuitry
I am looking to design a USB rechargeable device that feature a small microcontroller set up to run at low clock frequency driving a few LEDs. I'd like to power it off a 2032 coin cell battery or ...
- 495
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Switching between VCC and V_BAT
I am designing a circuit for a GPS receiver IC and RTC.
As both of them require a V_BCKP connection I will be using a CR2032 (non-rechargeable) battery for V_BAT supply.
To make sure the minimum use ...
- 15
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Powering a RF circuit with CR2032 along a capacitor, pulse currents of 150mA
I am designing a battery powered circuit which performs RF communication. The goal is to use a 3V CR2032 battery. The RF circuit consumes 0.2mA as average current and lowest voltage it can work on is ...
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