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359 views

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 ...
mosdkr's user avatar
  • 51
2 votes
1 answer
85 views

Connecting a supercapacitor to a supply with voltage lesser than capacitor's rated voltage

I am connecting a 3V power supply (CR2032/CR2450 coin cell) to a 1.5F 5.5V rated supercap. Given that the supply voltage is lesser than rated voltage of supercap, chances of any damage become minimal. ...
mosdkr's user avatar
  • 51
6 votes
1 answer
6k views

Coin cell battery recharging circuit for RTC backup power

I am designing a system that contains an RTC to for displaying the date and time on a user interface, as well as log events with time stamps. In this particular case, the system gets powered-on at ...
wave.jaco's user avatar
  • 675