Led Drivers


Drivers Recom – Series RCD-24

We tested these drivers with Pwm8 and Pwm16 system Theremino with good results, their precise adjustment and gradual, efficient and warm very little.

Drivers series "A" (without EMC filter)
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LED Drivers 300 mA - RS 738-5645  - Recom RCD-24-0.30/PL/A-R Driver LED 350 mA - RS 738-5658  - Recom RCD-24-0.35/PL/A-R Driver LED 500 mA - RS 738-5676  - Recom RCD-24-0.50/PL/A-R Driver LED 600 mA - RS 738-5695P - Recom RCD-24-0.60/PL/A-R Driver LED 700 mA - RS 738-5709P - Recom RCD-24-0.70/PL/A-R
Drivers series "B" (with EMC filter)
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LED Drivers 300 mA - RS 738-5648  - Recom RCD-24-0.30/PL/B-R Driver LED 350 mA - RS 738-5667P - Recom RCD-24-0.35/PL/B-R Driver LED 500 mA - RS 738-5670  - Recom RCD-24-0.50/PL/B-R Driver LED 600 mA - RS 738-5698P - Recom RCD-24-0.60/PL/B-R Driver LED 700 mA - RS 738-5718  - Recom RCD-24-0.70/PL/B-R
Prices
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From 10 Euro per 14 euros depending on the number of pieces,
the output current and model "A" or "B"
Common features of all models
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Costruttore             Recom Contenitore             SMT Dimensioni              6,6 x 11,4 x 31mm Efficienza              96%
MTBF                    >600 mila ore Numero di uscite        1
Ripple and noise    300 mVp-p Potenza nominale        21W Temperatura d'esercizio da -40 a +75°C Tensione di ingresso    da 4.5 to 36 Volt output voltage from 2 to 35 Volts

The signal coming from one of the standard connectors of InputOutput of one module in the system Theremino, connects directly to Signal (the yellow wire) and Gnd (the black or brown wire), While you will leave not connected the central Red wire that carries the 5 volts.

The Pin type to use is PWM_8 or PWM_16 in order to allow brightness adjustment, a slave of type “Servant” can feed up to ten of these modules independently.


Drivers XP POWER

We did not try these drivers, There remains some doubt about the possibility to adjust the light down to zero (datasheet speaks of a strange 25%)

Features of LDU0830S350
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Farnell Code:        1738292
Cost:                 about 9 Euro power output:     8W (up to 8 LEDs in series from 1 W)
Input voltage:  from 7V up to 30V Dimensions:            6.88mm x 20.32 x 10.16 mm Efficiency:            95%
Piloting:            PWM - min. 0.3volts - Max 1.2 volts

The resistive divider reduces the voltage from 3.3 volts to 0.9 volts.

The signal coming from one of the standard connectors of InputOutput Slave system Theremino links to Signal points (the yellow wire) and Gnd (the black or brown wire), While you will leave not connected the central Red wire that carries the 5 volts.

The Pin type to use is PWM_8 or PWM_16 in order to allow brightness adjustment, a slave of type “Servant” can feed up to ten of these modules independently.


Power supplies for drivers

To power the power supplies require a voltage from 7 to 30 Volt that will be provided by a power supply like the image on the right.

Typically with a 7 volts you can feed a single led, with one from 12 volts you can feed three in series, with one from 24 they will feed you and finally with one from 30 You can feed up to 8 LEDs in series. (Verify controller specification used)

A power supply from 1 amp can power two ballasts one from 5 amps it could fuel more than ten.

And’ right click switching type power supplies and current protected. Models from 12 volts are cheap because used for halogen lamps, on eBay you can find from 5 to 10 Ampere in 15 euros or so. You can find them at a good price in the shops of electrical equipment.


Get the system modules

The theremino team only deals with research and does not sell hardware. The system is completely "Freeware", "Open Source", "Not for Profit" and "DIY", but there are manufacturers who can provide modules assembled and tested at a great price. One could hardly self-build them spending less. A list of manufacturers on this page: www.theremino.com/contacts/producers


Donations

The source code of our software does not contain copyright notices, author names and links to our site, so you can make every use, without limitation of any kind. We do not require you to specify the original source or our site but if you are happy with our software remember us and make known this site to your friends. Any donations, even small, are very welcome and can help us to maintain the software “free” and to produce always new applications.

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