This page (revision-18) was last changed on 2019-12-23 11:17 by Murray Altheim

This page was created on 2019-12-23 04:14 by Murray Altheim

Only authorized users are allowed to rename pages.

Only authorized users are allowed to delete pages.

Page revision history

Version Date Modified Size Author Changes ... Change note
18 2019-12-23 11:17 9 KB Murray Altheim to previous
17 2019-12-23 11:16 9 KB Murray Altheim to previous | to last
16 2019-12-23 11:12 9 KB Murray Altheim to previous | to last
15 2019-12-23 11:10 9 KB Murray Altheim to previous | to last
14 2019-12-23 11:04 9 KB Murray Altheim to previous | to last
13 2019-12-23 11:02 9 KB Murray Altheim to previous | to last
12 2019-12-23 11:01 9 KB Murray Altheim to previous | to last
11 2019-12-23 10:57 9 KB Murray Altheim to previous | to last
10 2019-12-23 05:18 9 KB Murray Altheim to previous | to last
9 2019-12-23 05:17 9 KB Murray Altheim to previous | to last
8 2019-12-23 05:16 9 KB Murray Altheim to previous | to last
7 2019-12-23 05:09 9 KB Murray Altheim to previous | to last
6 2019-12-23 04:58 9 KB Murray Altheim to previous | to last
5 2019-12-23 04:57 9 KB Murray Altheim to previous | to last
4 2019-12-23 04:53 9 KB Murray Altheim to previous | to last
3 2019-12-23 04:28 7 KB Murray Altheim to previous | to last
2 2019-12-23 04:20 7 KB Murray Altheim to previous | to last
1 2019-12-23 04:14 6 KB Murray Altheim to last

Page References

Incoming links Outgoing links
Power Supplies...nobody
PowerSupplies

Version management

Difference between version and

At line 1 changed one line
%%alias Aliased from [USB Power Supplies], [Power Supply|PowerSupply], [Power Supply Unit|PowerSupplyUnit] and [PSU] %%
%%alias Aliased from [USB Power Supplies], [WallSupplies], [Power Supply|PowerSupply], [Power Supply Unit|PowerSupplyUnit] and [PSU] %%
At line 9 added one line
Note: we'll cover [battery packs|BatteryPacks] elsewhere.
At line 11 added one line
At line 50 added one line
!! What is a Switching Power Supply?
At line 52 added 9 lines
Some power supplies (what we might call "old school") use a [transformer|https://en.wikipedia.org/wiki/Transformer] to convert the wall voltage (110 volts in the Canada, the US and Japan, 200-240 volts in most of the rest of the world) down to the low voltage (5-12 volts) used for our robot. The more power we needed, the larger the transformer. The amount of power that could be delivered was almost a direct relation to the size the transformer. Transformers can get big and heavy.
%%aside
My dad used to really like trying to guess what was in his Christmas gifts. I remember one Christmas where as a joke gave him an extremely heavy transformer from a [Bell UH-1 Iroquois helicopter|https://en.wikipedia.org/wiki/Bell_UH-1_Iroquois] that I'd bought at a local surplus store (I wanted the chassis it was in, or some such reason). I'd put his real gift under the transformer and there were some laughs, ha ha. He then picked up the transformer and dropped it into what he thought was an empty box full of wrapping paper, except it wasn't empty. It contained the Rotal Albert tea cup I'd just given my mom. Ugh.
%%
A __[Switching Power Supply|https://en.wikipedia.org/wiki/Switched-mode_power_supply]__ (also called a "switched-mode power supply) doesn't use a big transformer. Most laptop power supplies are switching power supplies. If you're on one of the robot vendor web sites you'll see switching power supplies advertised. AdaFruit sells a 5 volt 10 amp for US$30, another one for $25. Most of these units have the benefit of being able to run from either 110 or 240 volts.
This page (revision-18) was last changed on 2019-12-23 11:17 by Murray AltheimTop