Small solar panel large toy car

Click For Summary

Discussion Overview

The discussion revolves around the challenges of building a solar-powered toy car, specifically focusing on the power requirements for starting and operating DC motors using a small solar panel. Participants explore energy storage solutions and the feasibility of using capacitors or batteries to manage power delivery.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant is attempting to build a solar-powered toy car but struggles with insufficient power to start and run the DC motor(s).
  • There is a suggestion to use a larger solar panel or to find a way for the solar panel to store energy and release it when sufficient power is available.
  • Another participant questions the power density of incident radiation compared to the demand of the motors.
  • A participant mentions the initial current requirement for the motor is 200 mAmps and discusses the variability of solar energy based on the angle of incidence of light.
  • There is speculation about the possibility of moving a full-sized car with a small solar panel given enough time to collect sunlight, along with inquiries about the configuration of the solar panel to the battery.
  • Capacitors are considered as a potential solution for energy storage in the toy car.

Areas of Agreement / Disagreement

Participants express various ideas and approaches, but there is no consensus on the best method to achieve the desired outcome. The discussion remains unresolved with multiple competing views on energy storage and motor operation.

Contextual Notes

Participants reference previous discussions and questions, indicating a potential overlap in topics. There are unresolved aspects regarding the specific configurations and calculations needed for the solar panel and energy storage components.

pug
Messages
7
Reaction score
1
I am working on building a solar powered toy car for my own edification. The problem I have is that I do not have enough power to start and continue the dc motor(s). I could add a bigger solar panel but I am trying to think of a way that the solar panel could simply collect the energy, store it, and then release it when the power has become sufficient enough to turn the motor. I would suspect that the car would either move in starts/stops or perhaps get moving and continue moving. either would be fine. I've tried capacitors and 'dead' batteries but nothing is working. I was thinking of adding multiple capacitors in a series. Success would be to demonstrate that a relatively large toy car could be moved by a small solar panel. any thoughts? thank you!
 
Engineering news on Phys.org
What's the power density of incident radiation versus demand?
 
  • Like
Likes   Reactions: billy_joule
Bystander said:
What's the power density of incident radiation versus demand?
I would eventually want (4) motors moving on the road...but right now I'll settle for one motor turning in the almost friction less air. so for that it would be the initial current required to start the motor which, from the amazon specifications, means it would require 200 mAmps. The angle of incidence of light will be entirely dependent upon where the sun is at at any given time of day so it will be variable. To push the thought concept to its extreme...would it be possible to move an actual car off of a 3X3 inch solar panel provided that the solar panel was given enough time to collect sunlight? And if so...how would the solar panel be configured to the battery? I was thinking I could just use a capacitor for the smaller toy car.
 

Similar threads

  • · Replies 7 ·
Replies
7
Views
2K
Replies
6
Views
4K
  • · Replies 9 ·
Replies
9
Views
1K
Replies
14
Views
2K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 31 ·
2
Replies
31
Views
5K
  • · Replies 32 ·
2
Replies
32
Views
4K
Replies
28
Views
4K
Replies
9
Views
2K
  • · Replies 153 ·
6
Replies
153
Views
17K