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What's inside this cordless power tool USB adaptor with light? Why does it have both a linear 5V regulator and a switched mode 5V regulator? Why is there a 1k resistor betewwn D+ and D-?
Interested in my new garden workshop? Follow the entire build on Julian's Shednanigans:
https://www.youtube.com/channel/UCXfDjPehpC7B7lW2JFxeS4w
Subscribed to my 2nd channel? Watch all my 3 minute videos on Julian's Shorts: https://www.youtube.com/channel/UCeewzdnwcY5Q6gcbnZKIY8g
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Datasheets:
http://estmicro.com/e_productshow/?143-IC-AP2962-SO8-EP-AC-DC-143.html
http://kiloohm.info/eia96-resistor/01B
Any questions about JLCPCB or ordering, pls email support @jlcpcb.com
What's inside this cordless power tool USB adaptor with light? Why does it have both a linear 5V regulator and a switched mode 5V regulator? Why is there a 1k resistor betewwn D+ and D-?
Interested in my new garden workshop? Follow the entire build on Julian's Shednanigans:
https://www.youtube.com/channel/UCXfDjPehpC7B7lW2JFxeS4w
Subscribed to my 2nd channel? Watch all my 3 minute videos on Julian's Shorts: https://www.youtube.com/channel/UCeewzdnwcY5Q6gcbnZKIY8g
Join me on Odysee/LBRY: https://lbry.tv/$/invite/ @julian256:d
Datasheets:
http://estmicro.com/e_productshow/?143-IC-AP2962-SO8-EP-AC-DC-143.html
http://kiloohm.info/eia96-resistor/01B
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I wanted to see inside but i don't want to break it. So thanks for that video. I wander if i can put a dc jack to output the unconverted battery voltage
This item is in our country next week. For about $9
A tip that works for most 18V power tool battery formats: I buy the cheapest tool available for the system which is usually a torch and repurpose it in conjunction with kit intended for car or boat electrical systems to make all kinds of power supplies and battery operated instruments. USB power outlets for cars very often have buck converters with input ranges spanning below 12V to above 24V to cover both car and truck electrical systems so they are fine at 18V nominal from the battery. If you need exactly 12V, you can get very inexpensive buck converter modules intended for dropping 24V truck electrics to 12V.
I've made the following for my CEL PowerHandle batteries:
– A box breaking out a power tool battery to two 'cigarette lighter' type car sockets and two XLR microphone sockets. The former can accept a fused 12V car plug or little self contained USB power converters that are contained within the socket. The benefit of this is you can quickly switch between different USB power standards (PD, Qualcomm, Apple etc.). The XLR sockets take gooseneck LED lights made for musicians which are designed to take parasitic power from an active microphone socket, but work fine off 12V.
– A high specification laboratory power supply covering voltage range 1-50V, current range 0-5A. This is based on a low-cost Chinese buck-boost module built into a custom case with the battery shoe adapted from a torch tool mounted on the base. I also fitted an auxiliary XT60 (drone battery) plug which allows a cable connection to an old ATX mains computer PSU for bench-top use.
– The CEL system does not include a woodworking router and I did not want to have a second set of batteries. I bought a Makita router and a cheep, low capacity clone battery. I removed the cells and used the battery shell to connect the router via a short heavy-duty cable to a CEL battery shoe made from a torch as before. It works nicely and reduces the number of batteries I need to manage.
If I had any talent for movie making I'd do some YouTube videos, but instead I offer the idea to any EE YouTuber who is interested in taking it up!
Parkside products are not that bad, they are far from being high quality products but they are good for their price!
as opposed to the CORDED battery adaptor?
Have one of them in use for a year or two – unfortunately it drains the battery if it's left connected for months… Not ideal, not not the end of the world
Hi Julian, I read somewhere that using this unit could over discharge your cells if not careful since the discharge limit is built into the handtool not the battery, do you know if this is correct.
I always love your videos, especially all the ones that deal with switching power supplies, I only wish they were much longer
Are you changing your channel name to Julian Lidl any thime soon π
I bought a cheap mechanical adapter for Makita and Bosch batteries from AliExpress and soldered on some wires with a XT60 connector, to power my TS100 from a 18V/20V powertool battery.
The belt clip seems useless in that with the thing clipped onto the belt the lights are pointing the wrong way.
That micro has loads of I/O and a 12 bit ADC amongst other yummies, seems all a bit OTT…cheers