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STD Canning Jar LED Lantern
License: CC-BY-SA 3.0
Mode: Editors' pick
- 0
Update time：
2020-07-11 13:53:41
Creation time：
2016-08-04 13:15:14
Description
This circuit is mounted on the lid of a wide mouth canning jar. The solar cell is on the top of the lid and the PCB is mounted to the bottom of the lid. The 555 Timer IC operating in astable mode, drives the switching transistor connected to the fly-back inductor, which develops the required forward voltage to light the LED. The solar cell charges the battery during the day. When the solar cell voltage is sufficient to turn on the disable transistor, the 555 Time IC is in reset and the MOSFET disconnects the load from the battery while in shutdown.
Design Drawing
schematic diagram
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| ID | Name | Designator | Quantity |
|---|---|---|---|
| 1 | HDR-F-2.54_1x2 | H2,H1 | 2 |
| 2 | ZTX651 | Q3,Q2,Q1 | 3 |
| 3 | 10k | R4,R1,R5,R2 | 4 |
| 4 | 4.99k | R3 | 1 |
| 5 | 1000p | C4 | 1 |
| 6 | 4.7u | C2 | 1 |
| 7 | 0.1u | C3 | 1 |
| 8 | 1u | C1 | 1 |
| 9 | AAA NiCd | B1 | 1 |
| 10 | VN3205 | Q4 | 1 |
| 11 | LMC555 | U1 | 1 |
| 12 | 82u | L1 | 1 |
| 13 | 1N581* | D2,D1 | 2 |
| 14 | FRAME-LEDGER | FRAME1 | 1 |
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