All Questions
Tagged with supercapacitor microcontroller
11
questions
1
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Supercapacitor discharging fast when there is no discharge path present
This question is a continuation of my previous question, but different from that.
I am using a PCA85073A RTC in my design. On some boards, the supercapacitor discharges very fast (5 V to 1.1 V in half ...
- 2,593
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1
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What will happen if I2C pull up voltage became zero
This is a continuation of this question.
In my board RTC I2C lines are pulled up to controller supply voltage and the controller supply voltage will be off when the system is off.
At that time also ...
- 2,593
4
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1
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RTC super capacitor is discharging very fast
I am using a PCA85073A RTC in my design. On some boards, the supercapacitor discharges very fast (5V to 1.1V in half an hour.)
This happens when we turn off 5V_uC.
The circuit is given below.
All the ...
- 2,593
4
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1
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Powering microcontroller with a capacitor
I have a ESP32-SOLO-1 microcontroller mounted on a moving part of a machine which moves in a circle. The idea is to power it with a capacitor and then charge the capacitor in a fixed location when the ...
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Parallel LTC3127 based software controlled supercapacitor charger
I am trying to charge 3 supercapacitors rated for 2.7VDC-300F connected in parallel, giving a total of [email protected]. The IC I am trying to use is the LTC3127 from Analog Devices(Linear Technologies). I ...
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2
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Poor man's UPS for a microcontroller
I'm planning to create a control box for my home solar system which will involve using a microcontroller (STM32F103C8T6) as my control system.
This uC will handle my current sensing for power ...
- 203
2
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ESP32 powered by supercapacitors
It's been ages since I had to design something electrical so please don't laugh if this is stupid idea but I would like to power ESP32 with super capacitors, just for 30 sec or so so it can finish the ...
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Use of very large bulk capacitor for microcontroller power stability
I have a PIC32 microcontroller (MCU) system that experienced intermittent (though regularly) resets, most likely due to ground bounce caused by the switching of inductive loads (solenoids). All the ...
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Using supercapacitor as backup for MCU
I have this project that requires some kind of backup power supply. and I am planning to use a 5V 4F super cap.
there are my questions:
I am planning to charge the cap with a diode and 100 ohm ...
user83582
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1
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I have a micro controller whose specifications state operating voltage from 2.3v to 5.5V [closed]
Does this mean my input has to be in this range or can it be higher?
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Supercap for Backup Power (10 hours Backup Time Min.)
I am using atxmega8e5 in a design and also utilizing its Real-Time Counter to act as a Real-Time Clock.
A lot of RT-Clock ICs can use a SuperCap to have backup power incase the device is unplugged or ...
- 5,419