Battery supercapacitor hybrid design

AI Thread Summary
The discussion centers on the challenges of integrating a supercapacitor into a circuit to extend battery run-time. The user reports that the load drains the supercapacitor faster than the battery can recharge it, leading to power loss and system restarts. Suggestions include selecting a battery with lower internal resistance to better match the load's average current requirements. Additionally, the effectiveness of the supercapacitor in prolonging battery life may vary based on specific load conditions. Optimizing the battery and load relationship is crucial for improving performance in this hybrid design.
tattee
Messages
1
Reaction score
0
hello! i would like to ask for your opinions. i have tried using supercapacitor in my circuit to prolong its battery run-time. I have attached a simple circuit design for your reference.


the problem is that the load drains the supercapacitor faster than the battery charging the supercap. the result is that the load runs out of power and restarts. is there a way we can limit the consumption of the load or increase the speed of charging time of the battery?

thank you!
 

Attachments

Engineering news on Phys.org
tattee said:
hello! i would like to ask for your opinions. i have tried using supercapacitor in my circuit to prolong its battery run-time. I have attached a simple circuit design for your reference.


the problem is that the load drains the supercapacitor faster than the battery charging the supercap. the result is that the load runs out of power and restarts. is there a way we can limit the consumption of the load or increase the speed of charging time of the battery?

thank you!

If I understand your question, then your battery has too much internal resistance for the load.
You need to select a battery that can accommodate the average current.
The supercap may or may not extend the battery life depending on the load specifications.
 
Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
suppose you have two capacitors with a 0.1 Farad value and 12 VDC rating. label these as A and B. label the terminals of each as 1 and 2. you also have a voltmeter with a 40 volt linear range for DC. you also have a 9 volt DC power supply fed by mains. you charge each capacitor to 9 volts with terminal 1 being - (negative) and terminal 2 being + (positive). you connect the voltmeter to terminal A2 and to terminal B1. does it read any voltage? can - of one capacitor discharge + of the...
Thread 'Weird near-field phenomenon I get in my EM simulation'
I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...

Similar threads

Replies
11
Views
2K
Replies
3
Views
2K
Replies
2
Views
2K
Replies
14
Views
3K
Replies
10
Views
2K
Replies
3
Views
1K
Back
Top