Difference between revisions of "10W RGB LED Driver Board Assembly (RGB version)"

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3      R1,R2,R3          0.33R  resistor
 
3      R1,R2,R3          0.33R  resistor
 
3      R4,R5,R6          10K resistor (used to be 4.7K)
 
3      R4,R5,R6          10K resistor (used to be 4.7K)
1      R7 or R8         0.33R or 0R resistor
+
1      R7 or R8           0.33R or 0R resistor
 
1      C1                47uF/50V capacitor
 
1      C1                47uF/50V capacitor
 
1      C2                0.1uF capacitor
 
1      C2                0.1uF capacitor
Line 24: Line 24:
  
 
[[File:10w-ws2811-kit-v2-s1.jpg]]
 
[[File:10w-ws2811-kit-v2-s1.jpg]]
 
 
'''Cut leads'''
 
 
Cut leads as close to PCB as possible.
 
 
 
[[File:10w-ws2811-kit-v2-s2.jpg]]
 
 
 
'''Solder diodes'''
 
 
Pay attention to polarity, diode's cathode (stripe) should be on the left side of PCB, pointing towards the LED.
 
 
[[File:10w-ws2811-kit-v2-s3.jpg]]
 
 
 
'''Solder monolithic capacitor, transistors, and LDO'''
 
 
Check markings on components, 78L05 is LDO (IC4,) 3904 are transistors. LDO and transistors should be soldered about 0.1" from PCB, total height should be ~0.3".
 
 
[[File:10w-ws2811-kit-v2-s4.jpg]]
 
 
 
'''Solder inductors'''
 
 
Inductors should be as close as possible to PCB. Apply pressure when soldering, heat for ~2-3 seconds, 2-3 times each lead.
 
 
Some inductors may have isolation sticking out on the bottom, trim if that's the case.
 
 
[[File:10w-ws2811-kit-v2-s5.jpg]]
 
 
 
'''Solder electrolytic capacitor'''
 
 
Use PCB to bend capacitor's leads. Pay attention to polarity.
 
 
[[File:10w-ws2811-kit-v2-s6.jpg]]
 
 
 
"-" lead should be facing 33R resistors.
 
 
[[File:10w-ws2811-kit-v2-s7.jpg]]
 
 
 
'''Trim leads'''
 
 
Trim all leads, remove excess solder if necessary.
 
 
[[File:10w-ws2811-kit-v2-s8.jpg]]
 
 
[[File:10w-ws2811-kit-v2-s8-2.jpg]]
 
 
 
'''Solder LED'''
 
 
Pay attention to polarity and alignment. LED's "+" (anode) should be on the top (left side on the image below,) close to 0.33R resistors. LED's pins cannot touch GND pour.
 
 
[[File:10w-ws2811-v2.jpg]]
 
 
 
'''UPDATES'''
 
 
'''C2 capacitor'''
 
 
There are 2 different sizes of 0.1uF capacitors that I may ship, 2.5mm or 5mm.
 
 
[[File:0.1uf.jpg]]
 
 
 
'''RGB mode'''
 
 
Starting with version 4 of the board, there is one extra pad next to T2 which allows switching collectors of G & R transistors.
 
 
This is the default GRB configuration. T1 - green transistor, T2 - red
 
 
[[File:10w-grb.jpg]]
 
 
This is RGB configuration, move C2 to extra pad (G) and C1 to C2's place
 
 
[[File:10w-rgb.jpg]]
 

Revision as of 12:14, 26 March 2016

BOM

QTY    Part               Description
3      IC1,IC2,IC3        PT4115 constant current buck driver (soldered)
1      IC4                78L05 LDO
1      IC5                74HC86 (soldered)
3      L1,L2,L3           100uH inductor, 6x8mm, 500ma        
3      D1,D2,D3           1N5819 diode
3      R1,R2,R3           0.33R  resistor
3      R4,R5,R6           10K resistor (used to be 4.7K)
1      R7 or R8           0.33R or 0R resistor
1      C1                 47uF/50V capacitor
1      C2                 0.1uF capacitor

10k.jpg

10w-ws2811-kit-v2.jpg


Solder resistors

Use as little solder as possible.

10w-ws2811-kit-v2-s1.jpg