Color-adjustable smart lighting reference design
The DER-612 reference design includes a 3.3 V power supply to drive a Casambi CBM-001 Bluetooth wireless module, which provides convenient dimming and color management control of the four-string LED load from 0 to 400mA. The power supply operates over a universal input voltage range of 90 VAC to 265 VAC and achieves greater than 0.8 power factor across all line conditions.
The design is based on Power Integrations’ InnoSwitch-CH power supply controller, which combines primary, secondary and feedback circuits in a single surface-mounted offline flyback switcher IC. The IC incorporates the primary FET, the primary-side controller and a secondary-side synchronous rectification controller. The device also includes Power Integrations’ magneto-coupling communications technology, FluxLink, which safely bridges the isolation barrier and eliminates the need for an optocoupler.
Secondary-side control enables highly accurate constant-voltage regulation and an ultra-fast step load response while simple PWM control eliminates the need for a secondary DC/DC regulator. The high efficiency and very low standby power of the IC eliminates the need for additional heatsinks and enables customers to create solutions that meet demanding DOE-6 regulations. A built-in secondary-side auxiliary power output supports RF and MCU control circuitry.
CBM-001 is a Class 2 embedded Bluetooth 4.0 module designed for LED lighting control applications, light fixtures and LED bulbs. It is pre-programmed with Casambi’s proprietary firmware, making it completely compatible with other Casambi enabled devices. CBM-001 is controlled wirelessly with Casambi smartphone and tablet applications using the Bluetooth 4.0 protocol. Devices automatically form a self-healing and self-organizing wireless mesh network so that a large number of fixtures can be controlled from any point. No external gateway module is needed.
Power Integrations – www.power.com
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