Cataclysm-dda: Dashboard consumes more power than aisle lights
Despite producing much less light.
l29ah
All 3 comments
I imagine a dashboard does a lot more than just producing light. Actually, I imagine the light produced is just a byproduct of what it's actually doing, which is processing all the various instrumentation and displaying them on a screen. Sensible for that to consume more power than effectively an LED light
edit: Was curious so I did a bit of research. I'm no expert on the subject so feel free to do corrections.
Here's a power reference by Texas Instruments for an instrument cluster of a car dashboard. I put the numbers here into a watt calculator: total 2 amp and 12v equaled to 24 watts, which is roughly around what the current power consumption of dashboard (-25). This is _before_ the backlighting for the panel.
Looking around, a car instrument cluster could have anywhere from half a dozen to two dozen or so small bulbs for lighting, most of them 1.2 watt each, with a handful of bigger bulbs up to 3 watt each. For an LCD solution, this is what I found, which is around the same power draw as the cluster itself before you attach the lcd screen to it. This is for supporting a fairly large screen, but I imagine if the whole dashboard is LCD it'll be around the same dimensions . Most cars I see these days, including my own, have a mix of bulbs and LCD.
In summary, if based on my findings, the dashboard should actually be using up even more power than it does now.
Kilvoctu
on 20 Jan 2020
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stale[bot]
on 19 Feb 2020
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stale[bot]
on 20 Mar 2020
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Most helpful comment
I imagine a dashboard does a lot more than just producing light. Actually, I imagine the light produced is just a byproduct of what it's actually doing, which is processing all the various instrumentation and displaying them on a screen. Sensible for that to consume more power than effectively an LED light
edit: Was curious so I did a bit of research. I'm no expert on the subject so feel free to do corrections.
Here's a power reference by Texas Instruments for an instrument cluster of a car dashboard. I put the numbers here into a watt calculator: total 2 amp and 12v equaled to 24 watts, which is roughly around what the current power consumption of dashboard (-25). This is _before_ the backlighting for the panel.
Looking around, a car instrument cluster could have anywhere from half a dozen to two dozen or so small bulbs for lighting, most of them 1.2 watt each, with a handful of bigger bulbs up to 3 watt each. For an LCD solution, this is what I found, which is around the same power draw as the cluster itself before you attach the lcd screen to it. This is for supporting a fairly large screen, but I imagine if the whole dashboard is LCD it'll be around the same dimensions . Most cars I see these days, including my own, have a mix of bulbs and LCD.
In summary, if based on my findings, the dashboard should actually be using up even more power than it does now.