MEGA-JTAG

by WestfW.
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2 layer board of 1.80x0.66 inches (45.77x16.84 mm).
Shared on November 7th, 2014 04:01.

JTAG adapter for Arduino-MEGA

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HaseBoard

by Hasaranga.
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2 layer board of 0.74x0.80 inches (18.72x20.32 mm).
Shared on November 7th, 2014 03:16.

Simple board for ATTiny processors

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Lcd Backpack

by LA3PNA.
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2 layer board of 3.20x1.49 inches (81.28x37.80 mm).
Shared on November 7th, 2014 01:11.

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CCBoost™ 15b by rhd

by LightningStalker.
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2 layer board of 0.51x0.47 inches (13.00x12.01 mm).
Shared on November 6th, 2014 18:19.

2.4A Open Source Boost Driver

SDR1105-330KLCT-ND - (inductor) - Bourns - INDUCTOR POWER 33UH 10% SMD
568-6753-1-ND - (diode) - Diode Schottky 30V 5A
1276-2908-1-ND - (capacitor) - Samsung 22uF 0805
311-26.1KCRCT-ND - (resistor) - 26.1k 0805
WSLPB-.05CT-ND - (resistor) - 0.05 ohm, 0805, 0.5W
ZXCT1009FCT-ND - (current monitor) - ZXCT1009 + Set resistor of choice

RSET = 1200 / Current  
(ohms)               (amps)  

Current = 1200 / RSET

See this page for more details.
http://laserpointerforums.com/f67/open-source-cc-boost-2-4-amp-boost-driver-rc1-89556.html

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CCBoost HC™ v0.3b by rhd

by LightningStalker.
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2 layer board of 0.49x0.49 inches (12.52x12.52 mm).
Shared on November 6th, 2014 18:19.

High Current Open Source Boost Driver

This is a beta, so use it at your own risk.

D1: 568-6753-1-ND - Diode Schottky 30V 5A
C1, C2, C3, C4: 445-8047-1-ND - 1206 47 uF 25V Capacitor
RSENSE1: (0.06 Ohm)
RSENSE2: (0.12 Ohm)
RSET: ???
IC1: EUP2573
IC2: ZXCT1009FCT-ND - ZXCT1009
IC3: SIS412DN-T1-GE3CT-ND - N-Channel Mosfet

INDUCTOR OPTIONS:

ASPI-1040HI-100M-T05CT-ND - Abracon 10 uH 8.5A Sat
SRP1040-150MCT-ND - Bourns 15 uH 7A Sat
SRP1040-100MCT-ND - Bourns 10 uH 9A Sat
541-1295-1-ND - Vishay Dale 10 uH 12A Sat
732-3391-1-ND - Wurth Electronics Inc - 10 uH 12.5A Sat

0.075 Ohm RSense

FB Voltage = 0.01 x VSense * RSet
0.6 = 0.01 * (RSense * Current) * RSet
0.6 = 0.01 * 0.075 * Current * RSet
0.6 = 0.00075 * Current * RSet
800 = Current * RSet

RSet = 800 / Current

0.15 Ohm RSense

FB Voltage = 0.01 x VSense * RSet
0.6 = 0.01 * (RSense * Current) * RSet
0.6 = 0.01 * 0.15 * Current * RSet
0.6 = 0.0015 * Current * RSet
400 = Current * RSet

RSet = 400 / Current

See the following page for details.
http://laserpointerforums.com/f67/open-source-cc-boost-2-4-amp-boost-driver-rc1-89556.html

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