LEDSava - Mains Dimming LED Driver

The VPHK Mains Variable LED Dimmer Control System (VLDCS14) - LEDSava is a self contained power supply and driver for any type of LED light unit in two sizes 14 Watts and 20 Watts (LED Load). These self contained units can be connected to most off-the-shelf dimmer boxes to enable any single of connected group of LED or downlighter lighting units to be powered and dimmed.

The LEDSava can also be connected in parallel up to a maximum of 10 LEDSava per circuit, dependent on the dimmer control box power rating.

This LEDSava has the benefit of:

- Low Cost.

- Excellent performance and reliability.

- Small physical size.

- Low heat output.

   
Technical Overview:

The LEDSava is suitable for driving lighting systems with various power requirements, including LED retro-fit lamps, LED modules, LED spots, down-lights, and LED strings for retail displays.

The LEDSava is fully compatible with current lighting infrastructures and can operate directly from rectified mains power or in combination with a phase-control dimmer. The LEDSava includes a high-voltage power switch and can start up directly from the rectified mains voltage, so no external start-up circuit is necessary.

To support its dimming capabilities the LEDSava contains two integrated high voltage switches for bleeder operation and an input that can be used to sense lamp power consumption and activate additional bleeder action when needed.

The LEDSava has in-built circuitry to reduce capacitive switch-on losses and optimise valley switching efficiencies for improved effectiveness at low power levels. The LEDSava uses duty cycle control and frequency control to adjust the LED brightness. The combination of these two methods produces a dimming curve similar to that of an incandescent lamp and reduces peak current levels.

LEDSava - Mains Dimming LED Driver

AC line input voltage: 120/60Hz ± 10 % variation
230/50Hz ± 10 % variation

Output voltage on LED: Subject to Customer Requirement

Output current on LED: 350 mA to 700 mA

Maximum output power (LED Power): 14 W Maximum (VLDCS14)
                                                     : 20W Maximum (VLDCS20)

 
Efficiency: 70 %-78% at tabm= 25°C

Power Factor: ≥0.85

Dimming range: 100% – 0%

Operating temperature: -20 to 50 ° C

Multiple driver support: Will connect multiple LED units to a single dimmer box (not supplied).