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TRIAC Dimmable Ac-Dc LED Drivers VLED 15 Series

TRIAC Dimmable Ac-Dc LED Drivers VLED 15 Series. Introduction. Purpose To provide an overview of the VLED15 Ac-Dc LED power supply and its advantages Objectives Identify the market opportunity for LEDs Discuss why TRIAC dimming is important

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TRIAC Dimmable Ac-Dc LED Drivers VLED 15 Series

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  1. TRIAC Dimmable Ac-Dc LED Drivers VLED 15 Series

  2. Introduction • Purpose • To provide an overview of the VLED15 Ac-Dc LED power supply and its advantages • Objectives • Identify the market opportunity for LEDs • Discuss why TRIAC dimming is important • Describe the key specifications of the VLED15 Series Content: 11 pages Learning Time: 7 minutes

  3. LED Market Opportunity • Increased global government regulations to improve lighting efficiency levels • US Federal Regulations requiring efficiency levels significantly higher than current incandescent bulbs • Declining pricing for LED lamps

  4. Applications for LED Lighting • Residential Lighting • Accent lighting • Downlights • Cabinet lighting • Pendant lighting • Commercial Lighting • Fluorescent lamp replacement • Downlights • Showcase lights

  5. Driving LEDs • Simple two terminal devices • Constant current • Typically driven in series • Must consider how to dim

  6. Typical Existing Installations TRIAC Dimmer TRIAC Dimmer VLED15

  7. TRIAC Dimming • Leading edge, phase cut dimmers • Reduces the amount of energy delivered to the light source • Most TRIAC dimmers have a minimum load required to operate properly

  8. Challenges for High Bright LEDs • LEDs are driven differently than incandescent lamps • Light output is managed by controlling the forward current going through the LEDs • LED lamps don’t act as purely resistive loads • Standard switch mode power supplies have regulated outputs • Minimum loading must be considered when used with TRIACs

  9. LED Lighting Power Needs • Dimming capable • Backward compatible • Simple to use • Inexpensive

  10. VLED15 Series Truly TRIAC Dimmable • Integrated TRIAC dimming support • Operates with industry standard dimmers

  11. VLED15 Models Output Voltage (Vdc) OutputCurrent(mA) Part Number Min Max • Ac-dc operation eliminating the need for dc-dc constant current LED drivers • Constant current • Active power factor correction • Up to 1500 mA • 120 and 230 Vac inputs supported

  12. Summary • The potential for LEDs in replacing incandescent lamps is enormous • Being able to transparently interface with existing TRIAC dimmer installations will accelerate adoption • CUI’s VLED15 series offers a truly TRIAC-dimmable solution

  13. www.cui.com

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