LED Drivers Designed For Control. Anand Upadhyay LED Systems Rosemont IL

Transcription

1 LED Drivers Designed For Control Anand Upadhyay LED Systems Rosemont IL

2 Introduction LED Drivers & Control: 0 10V dimming Driver characteristics w.r.t. dimming AOC Dali Dynadim AmpDim Features Module temperature Protection (MTP) Constant light output (CLO) Over the life (OTL) & Adjustable Start up time (ADT) Flexible output configuration Diagnostic information LED Systems, Rosemont IL 2

3 Applications LED Systems, Rosemont IL 3

4 LED Driver Categories Category Key Benefits Key Features Programmable All benefits of Dimmable drivers Programmable solution that offers ultimate design flexibility Reduced SKU complexity and simplified logistics management Easily programmable user interface for onsite customization of driver requirements Intellivolt or dedicated Input Digital Control Optional Features: (1) Adjustable Output Current (AOC), Rset; (2) Module Temperature Protection (MTP), Thermal feedback (3) Network enabled (DALI) (4) Mains Dimming, AMP Dim (5) Constant Light Output (CLO) (6) Over The Life (OTL) (7) Adjustable Startup Time (AST) (8) Dynadim Dimmable Fixed All benefits of Fixed drivers Wide variety of dimming interfaces Addresses current and future code requirements for energy efficient buildings Fixture design flexibility with the AOC feature Fan output & module temperature protection Cost effective Reliable Intellivolt or dedicated Input Dimming Standard (0 10V, Phase cut, Step Dim) Option Features: (1) Adjustable Output Current (AOC), Rset; (2) Module Temperature Protection (MTP), Thermal feedback Intellivolt or dedicated Input Fixed output current Optional Feature: (1) Adjustable Output Current (AOC), Rset; LED Systems, Rosemont IL 4

5 Dimmable Output current (%) Vs Dim voltage 100% 80% Iout (%) 60% 40% 20% 0% Vdim (V) Precise adjustment of the dimming curve from 1V-8V and precise current in the dimming leads to enable the use of resistor for dimming. Control shut down feature to put driver in sleep mode. LED Systems, Rosemont IL 5

6 Fixed Dimmable Programmable Efficiency Designed for high efficiency Good efficiency over wide output power range LED Systems, Rosemont IL 6

7 Fixed Dimmable Programmable Power Factor Designed for best performance Good performance over wide power & input voltage range THD LED Systems, Rosemont IL 7

8 Programmable Programmable using PC interface via DALI wires Programmable DALI wires DALI RS232 LED Systems, Rosemont IL 8

9 Fixed Dimmable Programmable Adjustable Output Current (AOC) Adjustable Output Current (AOC) Adjustable using an external resistor or programmable in increment of 1mA Flexibility & SKU reduction for OEM Easy light engine upgrades LED Systems, Rosemont IL 9

10 Programmable Flexible Output Configuration Flexible Output Configuration: Due to digital control, output voltage can be adjusted based on current setting. LED Systems, Rosemont IL 10

11 Dimmable Programmable Module Temperature Protection (MTP) Module Temperature Protection (MTP) Can be used to regulate the temperature of the LED module Prevents the damage of LEDs due to misapplication or when LED modules is not mounted properly on the hea tsink On non programmable driver have a set profile On programmable driver, the levels can be adjusted with in a certain range LED Systems, Rosemont IL 11

12 Programmable drivers - Dimming options: Driver can be programmed to function as one of following dimming options. Programmable 0-10V NO DIM. DALI DYNADIM AMPDIM LED Systems, Rosemont IL 12

13 Dimming option : (0-10V) Programmable Driver offers additional flexibility to set minimum dim level. Hence easily compatible with motion sensor s or presence detectors Motion sensor 100% 50% LED Systems, Rosemont IL 13

14 Dimming options : Dynadim Programmable Learning mode Intelligent & self learning No need for external devices or wires Five steps of light level & timing can be programmed. 3-day learning period before dimming profile is executed Driver learns ON-time of LED system and then calculates a virtual clock. New drivers can be programmed with a time based profile (no learning period) Winter Summer :00 17:00 22:00 01:00 03:30 05:30 07:00 10:00 Power ON Power OFF 14 hours :00 18:00 22:00 01:00 03:30 05:30 06:00 10:00 12 hours LED Systems, Rosemont IL 14

15 DALI: Digital Addressable Lighting Interface Programmable Use of DALI Two way digital communication Set digital dim level (0-254) Define groups and set scenes Individual address driversturn ON/OFF Query driver/led status- ON/OFF, failures, short circuit, open circuit 1) Indoor highbay applications /Dynalite 2) Networked/wireless RF Starsense DALI Zigbe e LED Systems, Rosemont IL 15

16 Dimming options: AmpDim Programmable Dim by reducing input mains amplitude. Designed to support Philips Amplight Systems GPRS 100% 75% 30% LED Systems, Rosemont IL 16

17 Programmable Constant Light Output (CLO) Constant Light Output (CLO) Can be used to regulate the driver current to maintain constant light levels over life CLO curve can be generated using LED life degradation curve as reference Limited to 16 segments Output current can be increased to 120% of setting as along as the max current is below driver max current. LED Systems, Rosemont IL 17

18 Programmable OVER THE LIFE (OTL) Feature used to alert the end user that the module reached its predicted lifetime Once triggered the driver will flash the LEDs for 2.5sec every time it is turned on After 2.5sec the driver will return to normal operation The trigger point is programmable and uses the same lifetime counter as CLO LED Systems, Rosemont IL 18

19 Programmable ADJUSTABLE STARTUP TIME (AST) LEDs turn on instantly, in some cases this is undesirable This feature can be used to turn on the LEDs at a gradual rate to avoid such situations Can be programmed between 1000ms (default) to 30000ms in 1ms increments LED Systems, Rosemont IL 19

20 Diagnostic Information Programmable Allows detection of fault conditions. Helps troubleshooting in field installations and detect misapplication. System health over life like operating hours, module temperature and energy consumption can be monitored remotely via telemanagement system. LED Systems, Rosemont IL 20

21 Summary LED Drivers are designed to operate at a very wide power range providing optimal performance. LED Drivers can interface with various control means and provide substantial energy saving with LED Lighting. LED Systems, Rosemont IL 21

22 LED Systems, Rosemont IL 22