Shared projects

[outdated][untested][super-difficult] 10mm DD + single 7135 w/ LFPAK33 v008

by Red.

2 layer board of 0.40x0.40 inches (10.03x10.03 mm).
Shared on February 15th, 2015 15:25.

https://oshpark.com/shared_projects/WxbH4cRs

Don’t try this at home. Order one to cry over if you want.

Forum Thread: http://budgetlightforum.com/node/37726

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[untested] [wip] 10mm LFPAK33 v003

by Red.

2 layer board of 0.40x0.40 inches (10.03x10.03 mm).
Shared on February 14th, 2015 17:07.

10mm DD driver.

Forum Thread: http://budgetlightforum.com/node/37725

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[outdated][untested][super-difficult] 10mm DD + single 7135 w/ LFPAK33 v005

by Red.

2 layer board of 0.40x0.40 inches (10.03x10.03 mm).
Shared on February 14th, 2015 16:52.

Don’t try this at home. Order one to cry over if you want.

https://oshpark.com/shared_projects/wnoIDlj9

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[untested] [wip] 17mm 8+1 x 7135 w/ cut-able 2nd channel v009

by Red.

2 layer board of 0.67x0.67 inches (17.02x17.02 mm).
Shared on February 13th, 2015 03:59.

A17-L81

Forum thread: http://budgetlightforum.com/node/37686

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22mm A22-7135 (22mm 7135) v022

by Red.

2 layer board of 0.88x0.88 inches (22.28x22.28 mm).
Shared on January 31st, 2015 17:57.

v022: Added pulldown cap which occupies part of the same physical space as the Zener.

Forum Thread: http://budgetlightforum.com/node/31930

0805 sized resistors & caps.

Requires that the positions marked 7135-A and 7135-B have at least one 7135 populated each. Requires that the 7135 next to R2 be populated for the voltage divider to work (eg LVP).

Single-cell component list:

  • R1 - 22k 1% resistor
  • R2 - 4.7k 1% resistor
  • C1 - 5uF/10uF/whatever capacitor
  • OTC - 1uF capacitor
  • D1 - low Vf diode for polarity protection

Zener components:

  • R1 - appropriate 1% resistor
  • R2 - 4.7k 1% resistor
  • C1 - 5uF/10uF/whatever capacitor
  • OTC - 1uF capacitor
  • R3 - appropriate 0805 resistor, such as 200 ohm
  • Zener - appropriate SOD-123 zener, such as 4.3v

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