Can a Capacitor Be Used for Both Charging and Discharging in a Solar Circuit?

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Discussion Overview

The discussion revolves around the feasibility of using a capacitor in a solar-powered robot circuit, specifically focusing on charging the capacitor in series and discharging it in parallel. The scope includes practical circuit design considerations and the application of capacitors as energy storage devices in solar energy systems.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related
  • Debate/contested

Main Points Raised

  • One participant inquires about the possibility of charging and discharging a capacitor in the same circuit, suggesting a configuration where charging occurs in series and discharging in parallel.
  • Another participant expresses confusion about the configuration of the capacitors, questioning whether there would be multiple capacitors and how they would be arranged.
  • A participant mentions the intention to use two solar panels to charge the capacitors, which are meant to function like batteries, and seeks a circuit design that allows for charging in parallel and discharging in series.
  • One reply suggests that the described functionality resembles that of a DC to DC converter, proposing that such devices could be sourced from suppliers.
  • Another participant asks about the voltage and current requirements of the robot and the rationale for not using batteries, prompting a discussion about the reliance on solar energy.
  • The original poster clarifies that they cannot use batteries because the robot is intended to operate solely on solar energy, and they are uncertain about the specific voltage and current requirements needed for the motors.

Areas of Agreement / Disagreement

Participants express differing views on the practicality of using capacitors versus batteries, and there is no consensus on the optimal circuit design for charging and discharging the capacitors in the intended manner. The discussion remains unresolved regarding the specific circuit configuration and energy requirements.

Contextual Notes

Limitations include the lack of specific voltage and current requirements for the robot, as well as uncertainties regarding the circuit design and the role of capacitors versus batteries in the system.

coolmanhalo
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can we connect a capacitor in a way that we can charge and discharge a capacitor in the same circuit but the charging is done in series and discharging is done in parallel??
please help.
 
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Welcome to PF :smile:

Can you write out the homework question exactly as it was written? Also, what are your thoughts towards attempting a solution?
 
well i actually have to make a project and i am making a solar powered robot.
so the problem is that if i charge a capacitor in series it will get max charge and when it is connected in parallel it will give max output so i am trying to find a circuit which can do that i think it will probably be a complex design using a few transistors
 
I don't understand ... what is the capacitor going to be in series or parallel with?

Or do you mean there would be more than one capacitor, and all the capacitors are in series or parallel with each other?

It would be easier to use rechargeable batteries instead of capacitors, I would think.
 
the capacitor is connected to 2 solar panels each of 4volts and i think i will use to capacitors the capacitors are meant to act as batteries. now the problem i am having is that i can charge the capacitor in parallel so that they get more charge stored in them but i also need to use the charge stored in the capacitor in the circuit without actually touching the robot.
i can't use external batteries so i need a circuit which can charge the capacitors in parallel and discharge in series .

the capacitors are in series/ parallel with each other.
thank u
 
I think you are just describing a DC to DC converter. You can get some really cheap DC to DC converters from digi-key.
 
coolmanhalo, what are the voltage and current requirements of the robot? Why can't you use a battery?
 
i can't use a battery cause i am using a solar panels and the robot is suppose to work on just the energy from the solar panels.
and i don't know the exact voltage or current requirement yet but it should be enough to drive 2 motors at a reasonable speed or maybe 1 motor with gears the motor is going to be a stepper motor with a gearbox(probably)

i can't get to that point until i actually figure out the problem to powering up the bot.
and hey fleem i'll check out the website u said man thx.:smile:
 

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