Mini Projectors: Powering Up & Finding the Right Supply

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Discussion Overview

The discussion revolves around the power supply requirements for mini projectors, including the types of power sources used (AC vs. DC) and the challenges of finding compact power supplies. Participants explore the components involved in powering mini projectors and share personal experiences related to their performance and usability.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether mini projectors are powered by DC to AC conversion or just AC.
  • Another participant requests more specific information about the projector in question, suggesting the need for a datasheet.
  • A participant expresses a desire to understand the basic components and power sources used in mini projectors, noting the wide variety of projectors available.
  • Concerns are raised about the generality of the initial question, with a participant highlighting the differences between large and small projectors and their respective power sources.
  • One participant speculates on how batteries in mini projectors could be charged without removal, indicating curiosity rather than an academic inquiry.
  • Another participant suggests using Google Images to find mini projectors and access their datasheets for information on power consumption and battery life.
  • A participant shares their experience with a projector that had poor optical quality and a loud fan, emphasizing the importance of testing projectors in-store before purchasing.

Areas of Agreement / Disagreement

Participants express differing views on the specifics of mini projector power sources and the importance of context in discussing them. There is no consensus on the best approach to understanding or selecting a mini projector.

Contextual Notes

Participants mention various types of projectors, indicating a range of power requirements and performance characteristics. There is an acknowledgment of the limitations in the initial general inquiry about mini projectors.

Who May Find This Useful

Individuals interested in purchasing mini projectors, those exploring the technical aspects of projector power supplies, and users seeking advice on projector performance and usability.

Kasim
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Hi

Im just wondering how mini projectors are powered up.. Is it a dc to ac ? Or just Ac?

Also I am trying to look into a very small power supply but can't find anything as small as I want.. The smallest I've found is 13 x 5.6 x 9.7
 
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Kasim said:
Hi

Im just wondering how mini projectors are powered up.. Is it a dc to ac ? Or just Ac?

Also I am trying to look into a very small power supply but can't find anything as small as I want.. The smallest I've found is 13 x 5.6 x 9.7

Can you be more specific? What projector? Can you provide a link to a datasheet or something?
 
Im being very general. I am trying to find out what components are being used and what the power source is like.. There are many projectors but I want to just know the basic
 
Kasim said:
Im being very general. I am trying to find out what components are being used and what the power source is like.. There are many projectors but I want to just know the basic

Being that general makes the question meaningless, IMO. "Projectors" range from giant movie house projectors (which are obviously AC Mains powered) to small LED-based pocket-size projectors, which are obviously powered by batteries and/or wall chargers. What is the context of your question? Is this for schoolwork?
 
Context of mini projectors. Yeah I think your right about the batteries but how could these batterys be charged without taking them out..

Not schoolwork. Just curios that's all
 
Kasim said:
Context of mini projectors. Yeah I think your right about the batteries but how could these batterys be charged without taking them out..

Not schoolwork. Just curios that's all

I did a Google Images search on LED Projector just now, and got lots of good-looking hits. Try that search, and click into the smaller projector pictures that you see. You should be able to access their datasheets via this method, to learn what their power consumption is, and how long they last on batteries without being plugged into a wall wart power supply to recharge the batteries. :smile:
 
Thanks a lot!

I think without connecting to mains it only last an hour or two.. Wonder if its worth getting one
 
Kasim said:
Thanks a lot!

I think without connecting to mains it only last an hour or two.. Wonder if its worth getting one

Before getting any projector, I recommend finding one in a store and trying it out there. I made the mistake of buying an inexpensive projector over the Internet for use in some trainings with 4-6 people (so it didn't have to be a big super-bright one). The optical quality turned out to be so-so but probably acceptable. But the dang fan was way loud, too loud to use in a training where you are trying to talk over the fan. I ended up having to make a sound-quieting enclosure that still allowed good airflow for it. Lesson learned!
 

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