usb e kits presents
rgb mood lamp V2
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functionality
A very cool rgb mood lamp kit!
Lay back and watch the fade off/fade on effect between the 3 basic colours!
(R)ed,(G)reen,(B)lue
The kit is based on 2n7000 mosfets arranged on a ring oscillator connection.
Each mosfet is triggered from the output of the previous when a capacitor on the gate of the mosfet gets charged.
The mosfet drives 5 or 6 high brightness straw hat leds through a current limiting resistor.
The leds slowly go to the peak of their brightness (fade on effect) while the capacitor on the base charges until gets full charged and they “stay” there until the capacitor begin to discharges and then we have the fade off effect.
Each mosfet follows the situation of the previous and so the procedure goes on!
Lay back and watch the fade off/fade on effect between the 3 basic colours!
(R)ed,(G)reen,(B)lue
The kit is based on 2n7000 mosfets arranged on a ring oscillator connection.
Each mosfet is triggered from the output of the previous when a capacitor on the gate of the mosfet gets charged.
The mosfet drives 5 or 6 high brightness straw hat leds through a current limiting resistor.
The leds slowly go to the peak of their brightness (fade on effect) while the capacitor on the base charges until gets full charged and they “stay” there until the capacitor begin to discharges and then we have the fade off effect.
Each mosfet follows the situation of the previous and so the procedure goes on!
After your feedback from the first version we made some improvements
please leave your feedback for the kit or your suggestions for more improvements in the future
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V2 release improvements
1) Reverse polarity protection
2) Bigger pads for easier constructions
3) Better placing of the components for easier constructions
4) The on off switch now is extended from the pcb so you can mount it in your project box
5) More leds per channel for more intensity and better placing for better optical results.
6) Ability to place the led on the bottom side so you can hide the rest of the structure.
7) Bigger heat sink power plates for better heat consumption.
2) Bigger pads for easier constructions
3) Better placing of the components for easier constructions
4) The on off switch now is extended from the pcb so you can mount it in your project box
5) More leds per channel for more intensity and better placing for better optical results.
6) Ability to place the led on the bottom side so you can hide the rest of the structure.
7) Bigger heat sink power plates for better heat consumption.
the circuit schematic
Rgb Mood Lamp Schematic
part list
Ref. Type Value
C1 Ceramic Capacitor 330nF C2 Ceramic Capacitor 100nF C3 Electrolytic Capacitor 22u C4 Electrolytic Capacitor 10u C5 Electrolytic Capacitor 22u C6 Electrolytic Capacitor 22uF C7 Electrolytic Capacitor 2,2uF D1 Straw hat LED RED D2 Straw hat LED RED D3 Straw hat LED RED D4 Straw hat LED RED D5 Straw hat LED RED D6 Straw hat LED RED D7 Straw hat LED GREEN D8 Straw hat LED GREEN D9 Straw hat LED GREEN D10 Straw hat LED GREEN D11 Straw hat LED GREEN D12 Straw hat LED BLUE D13 Straw hat LED BLUE D14 Straw hat LED BLUE D15 Straw hat LED BLUE D16 Straw hat LED BLUE D17 Diode 1N4148 D18 Diode 1N4148 D18 Diode 1N4001 FU1 Fuse Glass 20mm 300ma J1 Usb jack Type B J2 Terminal Block 2 pin Dc Input Q1 n-channel mosfet 2N7000 Q2 n-channel mosfet 2N7000 Q3 n-channel mosfet 2N7000 R1 Resistor 1/4 watt 22 R2 Resistor 1/4 watt 120k R3 Resistor 1/4 watt 33 R4 Resistor 1/4 watt 1M R5 Resistor 1/4 watt 22 R6 Resistor 1/4 watt 560k SW1 jst 2 pin cable ON/OFF Switsh |
construction help guide
resistor color code definition
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downloads
| rgb_mood_lamp_v2_datasheet.pdf |
| rgb_mood_lamp_v2_merged.pdf |
Use something to put inside the kit and make your rgb mood lamp
or place the kit behind your tv or desktop monitor!
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