All Questions
Tagged with supercapacitor battery-charging
14
questions
1
vote
1
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370
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Is it possible to charge a large 30,000uF capacitor to 250V in 5 seconds?
The energy of the capacitor would be E = (1/2)CV^2 = (1/2) * (30000 * (10^-6)) * (250^2) = 937.5 J
That would be 937.5 J / 5s = 187.5 W
If I had a 12V power supply then the current would be 187.5W / ...
user298907
0
votes
2
answers
309
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Building a hybrid ultra-capacitor and battery bank
I have a project that I need input on.
Is it possible to build a hybrid bank out of ultra-capacitors (UC) and batteries?
The generalized flow of the system I'm thinking is from solar (48V) to UCs (48V,...
- 17
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3
answers
2k
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Can we use a capacitor with battery to fast charge it?
Consider this. Many capacitors connected in parallel to an input line, those capacitors are in series connected to battery. Whenever we need to charge, we plug in adapter that charges the capacitors. ...
2
votes
0
answers
149
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Supercapacitor as PMIC Storage Element
I'm currently trying to design a system that incorporates an ADP5092 which can use a supercapacitor as the storage element but I am also considering other similar PMIC chips so this is more for ...
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0
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327
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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 ...
- 51
0
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0
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30
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Capacitance modulation to maintain current-voltage (IV) character
The ideal capacitor DC analysis shows the time constant to be a function of the load resistance and capacitance.
Since the load resistance will be constant during discharge, is there any research on ...
- 11
1
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1
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6k
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Connecting a super capacitor to the solar battery in parallel
I find some people connect a super capacitor like (16v 88F capacitor bank) in parallel with the 12v 100Ah solar battery to optimize the surge current draws from the battery due to running heavy ...
- 1,898
3
votes
1
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3k
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Minimalistic RTC backup battery charging or a super-capacitor?
I am trying to provide RTC power backup for a 3.3V system that will be running at the very least 8hrs during the work day. As such I only need up to a month of backup, enough to survive over long ...
- 8,476
-2
votes
2
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1k
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Super capacitor in UPS system instand of battery
I got an idea to use super capacitors in UPS system like battery replacemant. I have UPS what give me 220V/2000W what use 3 batteries 12V/7,2A.
That UPS power whole my office (lights, computers, ...
-1
votes
2
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427
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How to efficient use Solar Panel to charge a 12V battery 10Ah?
I have tested my solar panel and i have these values :
Conneteced in series produces :
Around 136V and 16mA(closed circuit)
Connected in parallel produces : Arround 15V and 450mA(closed ...
- 9
0
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1
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181
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Powering a li-ion battery from a TEG
For a project, i would like to power a li-ion battery from a TEG.
For that, i use a step-up converter called LTC3109 developed by linear technology but it was limited in current. I intend to create a ...
- 1
2
votes
1
answer
3k
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CR2032 vs LIR2032 vs Capacitance Battery
I have an Android TV Box device that does not retain the date and time. Turns out there is not real time clock backup (RTC battery). There are 3 options to solve this.
Capacitance battery
CR2032
...
- 121
1
vote
2
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156
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Can I convert L-ion battery backup to supercapacitor?
I have a RAID card in my home server and the battery went dead. It's a lithium ion chemistry with the circuits to tell the RAID card miscellaneous information. I could buy another L-Ion battery to ...
- 223
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1
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2k
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How can I modify the charging circuit of the solar powered system using super-capacitor with or without battery (diagram is attached)?
I 'm working on a device which according to the below diagram, has a solar panel witch gives at most 10v voltage and 30mA current (average 9v and 20mA) and also it has a 6v lead acid dry battery with ...
