Solar panel tester circuit?I really

  • Context: Engineering 
  • Thread starter Thread starter KAS90
  • Start date Start date
  • Tags Tags
    Solar Solar panel
Click For Summary

Discussion Overview

The discussion revolves around designing a solar panel tester circuit using Multisim software, focusing on the implementation of operational amplifiers and voltage comparators to create a system that indicates voltage levels through LEDs. The scope includes circuit design, technical explanations, and practical application in electronics.

Discussion Character

  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant expresses uncertainty about how to start designing a solar panel tester circuit and mentions the requirement of using operational amplifiers and diodes.
  • Another participant suggests building voltage comparators using operational amplifiers, explaining that comparators compare a variable voltage to a reference voltage and can drive LEDs based on the comparison results.
  • A third participant notes that comparators are a simple application of operational amplifiers and can be used in an open-loop configuration.
  • The original poster acknowledges the help received and indicates a need to research more about voltage comparators, suggesting they may need to use five comparators instead of four.

Areas of Agreement / Disagreement

Participants generally agree on the use of voltage comparators for the circuit design, but there is no consensus on the exact number of comparators needed, as the original poster contemplates using five.

Contextual Notes

The discussion does not clarify specific details about the configuration of the operational amplifiers or the exact method for generating reference voltages, leaving some assumptions and steps unresolved.

Who May Find This Useful

Individuals interested in electronics design, particularly those working on projects involving operational amplifiers and voltage comparison circuits, may find this discussion beneficial.

KAS90
Messages
22
Reaction score
0
hey there..
I was asked to design a circuit using multisim software of a solar panel tester..
I know I need an operational amplifier.. a diode pehaps..
but I don't have a background concerning the way operational amplifiers work...

The lecturer wants us to construct this kind of circuit:


"The Tester consists of four levels of LEDs voltage display, Red, Orange, Yellow and Green.

1. The tester will show all the LEDs lighting up when the voltage of the Solar Panel is 6V.

2. When the voltage of the Solar Panel is 5V, the Red, Orange and Yellow LEDs will light up.

3. When the voltage of the Solar Panel is 4V the Red and Orange LEDs will light up.

4. When the voltage of the Solar Panel is 3V, only the Red LED will light up.

5. When the voltage of the Solar Panel is less than 3V no LED will light up."

I don't know where to start..I can't find till now useful information to helpme construct such a circuit on multisim... can ne1 help by atleast giving me the way to start?
 
Physics news on Phys.org
It sounds like you need to build some voltage comparators (which are implemented using op amps). Comparators, as their name suggests, compare voltages. More specifically, they have two inputs. One input is tied to a reference voltage (which is the voltage being compared TO). The other input is the variable voltage level that needs to be compared to that reference. If the test input is less than the reference, then the output of the voltage comparator is at a certain level (let's say low). On the other hand, if the test input is greater than the reference level, then the output of the comparator is the opposite (let's say high). Therefore, you need four voltage comparators, one for each reference level. The output of each comparator can drive the LED in question. You can easily generate the reference voltages using a resistor voltage divider.

Does that help? The rest you can do by researching how a voltage comparator works (and how to build it using an op amp).
 
I just did some quick checking and it looks like a comparator is just about the simplest application of an op amp there is. You don't have to build much of a circuit around the amplifier...you just use it open loop.
 
Thanx a lot cephied...
u really helped .. I appreciate all ur effort a lot..
I'll try then to search more about how a voltage comparator works..I think I'll need 2 use 5 comparators ..
I'm just a begginer in these stuff, that's y it's kind of difficult for me ..
Thanks again :)
 

Similar threads

Solar panel with circuit inside a PC box -Not working
  • · Replies 3 ·
Replies
3
Views
2K
New unusually powered "equatorial mount" tracking for solar panels
  • · Replies 2 ·
Replies
2
Views
3K
Circuit Requirements Questions (Design of a stadium lighting system)
  • · Replies 5 ·
Replies
5
Views
2K
Could you use Solar to power a DC to AC Inverter? (Description below)
  • · Replies 6 ·
Replies
6
Views
4K
How Do Solar Panels Perform Under Different Loads and Light Intensities?
  • · Replies 28 ·
Replies
28
Views
4K
Switching between parallel and series connections (solar)
  • · Replies 31 ·
2
Replies
31
Views
5K
Engineering Question about dc to ac circuits in solar panels?
  • · Replies 7 ·
Replies
7
Views
2K
Solar Panel System Troubleshooting - Charging Battery
  • · Replies 153 ·
6
Replies
153
Views
17K
Engineering Drawing the Schematic for a Circuit I built on a Breadboard
  • · Replies 11 ·
Replies
11
Views
2K
Engineering Is My Understanding of the Current Amplification Circuit Correct?
  • · Replies 12 ·
Replies
12
Views
2K