Ambient light controller has on-chip light sensors

The AS721x senses the ambient daylight and enables the delivery of constant lux levels in the space by managing subtle adjustments as the amount of outside light varies.

“Integrating a sensor-based manager into each luminaire optimizes the overall responsiveness and efficiency of the lighting system, maximizing energy savings. The approach also delivers accurate lumen maintenance over time and temperature variations, and allows fully connected luminaire systems to respond to building- or space-level command and control strategies,” said ams.

Photopic sensors built with nano-optic filters integrated into the AS721x can be used for energy-saving daylighting control systems which can be Bluetooth networked in an IoT configuration.

According to Sajol Ghoshal, who is responsible for Emerging Sensor Strategies at ams: “The AS721X family, with Broadcom’s WICED Smart Bluetooth and SmartBridge platform, delivers a secure, plug-and-play connection to the IoT for big data aggregation and the anticipated wave of machine learning.”

The integrated device should simplify lighting controller node design by reducing the need for discrete components, including sensors, processors, memory, and I/O chips.