projects:portable-led-bar
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| projects:portable-led-bar [2021/03/20 21:34] – unifying md table betweem GitHub and HSWiki lepi | projects:portable-led-bar [2021/03/21 20:57] (current) – lepi | ||
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| | repo=[[github> | | repo=[[github> | ||
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| - | + | \\ \\ | |
| - | ### Adapting a mains AC led bar to work with a battery of 18650s | + | === DISCLAIMER: === |
| + | === This is not yet a finished project intended as instructions but only a means to share progress on the project. === | ||
| + | === This might be dangerous to attempt !!! === | ||
| + | === If you attempt to follow any of this, you do it at your own risk. === | ||
| + | \\ \\ | ||
| + | === Adapting a mains AC led bar to work with a battery of 18650s | ||
| by [[people: | by [[people: | ||
| + | \\ | ||
| + | {{: | ||
| + | \\ \\ | ||
| + | {{: | ||
| - | # Intro | + | \\ \\ |
| + | KiCAD files: | ||
| + | [[https:// | ||
| + | |||
| + | Revision 0.1\\ | ||
| + | {{: | ||
| + | |||
| + | \\ \\ | ||
| + | === Intro === | ||
| The purpose of this project is to adapt a 220AC UV LED-Bar to work with 18650 cells. | The purpose of this project is to adapt a 220AC UV LED-Bar to work with 18650 cells. | ||
| + | \\ \\ | ||
| I have just started learning electronics, | I have just started learning electronics, | ||
| - | + | \\ \\ \\ | |
| - | # Specifications | + | == Specifications |
| The LED Bar - Light4Me LED UV 8 | The LED Bar - Light4Me LED UV 8 | ||
| - | Characteristic | + | ^Characteristic |
| - | ------------------------------ | + | |Voltage: |
| - | Voltage: | + | |Power: |
| - | Power: | + | |Light source: |
| - | Light source: | + | |Light angle: |
| - | Light angle: | + | |Light wavelength: |
| - | Light wavelength: | + | |Dimensions: |
| - | Dimensions: | + | |Weight: |
| - | Weight: | + | | | | | |
| - | | + | |LED driver inside (IP65): |
| - | LED driver inside (IP65): | + | |Model: |
| - | Model: | + | |Power: |
| - | Power: | + | |Input: |
| - | Input: | + | |Output Voltage: |
| - | Output Voltage: | + | |Output Current: |
| - | Output Current: | + | |TA: |60 °C | | |
| - | TA: | 60 °C | | + | |TC: |80 °C | | |
| - | TC: | 80 °C | | + | \\ |
| - | + | 18650 Cells | |
| - | Cells | + | |
| ^Characteristic | ^Characteristic | ||
| |Datasheet: | |Datasheet: | ||
| Line 49: | Line 65: | ||
| |Diameter: | |Diameter: | ||
| |Length: | |Length: | ||
| + | \\ | ||
| Battery charger - Tangspower TP-L8S20 Li-ion charger | Battery charger - Tangspower TP-L8S20 Li-ion charger | ||
| ^Characteristic | ^Characteristic | ||
| |Maximum Voltage: | |Maximum Voltage: | ||
| |Charging Current: | |Charging Current: | ||
| - | + | \\ \\ \\ | |
| - | ### The Story | + | === The Story === |
| - | + | \\ | |
| - | # Revision 0.1 | + | === Revision 0.1 === |
| A friend of mine performs POI with POI-tails that are neon-yellow. The thing is made to shine in UV light. | A friend of mine performs POI with POI-tails that are neon-yellow. The thing is made to shine in UV light. | ||
| - | Some AC mains LED bars I have, revealed a lot of space inside the casing profile - more than enough to house 8 18650 cells. | + | Some AC mains LED bars I have, revealed a lot of space inside the casing profile - more than enough to house 8 18650 cells. |
| The LEDs have a " | The LEDs have a " | ||
| - | | + | \\ \\ |
| Remembering next-to-nothing about Electrical Circuits, I started designing a circuit, that would: | Remembering next-to-nothing about Electrical Circuits, I started designing a circuit, that would: | ||
| - Power the LEDs from cells | - Power the LEDs from cells | ||
| - Allow charging the cells without taking them out | - Allow charging the cells without taking them out | ||
| - If possible leave the original charger with mains connection | - If possible leave the original charger with mains connection | ||
| + | \\ \\ | ||
| First I considered two solutions: | First I considered two solutions: | ||
| Line 76: | Line 92: | ||
| - Operating voltage would have to be 26.9 V (3.36 V / LED) | - Operating voltage would have to be 26.9 V (3.36 V / LED) | ||
| - Charging | - Charging | ||
| - | + | \\ \\ | |
| - | Parallel... | + | == Parallel... |
| - I have a TP4056 03962A Lithium Battery Charger with protection module | - I have a TP4056 03962A Lithium Battery Charger with protection module | ||
| - [[03962A description]](https:// | - [[03962A description]](https:// | ||
| Line 83: | Line 99: | ||
| - Initially I thought that would be crazy to put 8 of these inside | - Initially I thought that would be crazy to put 8 of these inside | ||
| - Also wiring LEDs in parallel would if I understand correctly require to put at least 40 cm * 8 = 3.2 m of thick wire - that might be difficult. | - Also wiring LEDs in parallel would if I understand correctly require to put at least 40 cm * 8 = 3.2 m of thick wire - that might be difficult. | ||
| - | | + | \\ \\ |
| - | In-series... | + | == In-series... |
| - A friend informed me to the fact, that I could use an external 33.6V charger which seemed to be easier. | - A friend informed me to the fact, that I could use an external 33.6V charger which seemed to be easier. | ||
| - And also that I could use LM317 to regulate current out of the cells to LED's | - And also that I could use LM317 to regulate current out of the cells to LED's | ||
| - I decided to use a I/0/II switch and an IEC cord socket with the original LED driver if possible. | - I decided to use a I/0/II switch and an IEC cord socket with the original LED driver if possible. | ||
| + | \\ \\ | ||
| Emeryth suggested: | Emeryth suggested: | ||
| - to learn more about li-ion cells before I use un-protected or multiple cells | - to learn more about li-ion cells before I use un-protected or multiple cells | ||
| Line 94: | Line 110: | ||
| - to use a DC-DC converter instead of LM317 that produces too much heat | - to use a DC-DC converter instead of LM317 that produces too much heat | ||
| - to rethink if I need all LEDs in-series | - to rethink if I need all LEDs in-series | ||
| - | + | \\ \\ | |
| - | Next Steps: | + | === Next Steps: |
| - | - Research Emeryth' | + | - Research Emeryth' |
| - Find a solution to connecting the cells | - Find a solution to connecting the cells | ||
| - decide whether to solder the cells (dangerous, potentially capacity hindering) | - decide whether to solder the cells (dangerous, potentially capacity hindering) | ||
| Line 102: | Line 118: | ||
| - design a 3d-printed casing for the cells with springs, that would slide into the LED bar casing | - design a 3d-printed casing for the cells with springs, that would slide into the LED bar casing | ||
| - remember to discharge cells before in case of soldering | - remember to discharge cells before in case of soldering | ||
| - | + | \\ \\ | |
| + | Notes:\\ | ||
| + | - https:// | ||
| + | - https:// | ||
projects/portable-led-bar.1616276087.txt.gz · Last modified: 2021/03/20 21:34 by lepi