exceptional PowerInt 12W高效高功率因素智能照明电源参考设计DER612详解(2)

InnoSwitch provides both accurate constant voltage (CV) and constant current (CC) while maintaining high efficiency across the load range. This is helpful in smart lighting where the CV capability may be used to power controllers and network interface devices, while the CC capability drives the LEDs, Lighting control is achieved by modulating the feedback pin using a PWM signal.

图1.InnoSwitch™-CH系列框图

The InnoSwitch™-CH Family of ICs combines primary, secondary and feedback circuits in a single surface mounted off-line flyback switcher IC. The InnoSwitch-CH IC incorporates the primary FET, the primary side controller and a secondary-side synchronous rectification controller. The new IC also includes an innovative new technology, FluxLink™, which safely bridges the isolation barrier and eliminates the need for an optocoupler. The incorporation of the secondary side controller enables a shoot-through proof synchronous rectification FET drive while delivering fast transient response, exceeding allworld-wide efficiency standards, including the Code of Conduct Version 5 and DoE Version 6 regulations.

InnoSwitch™-CH系列产品亮点:

Highly Integrated, Compact Footprint

Incorporates flyback controller, 650 V MOSFET,secondary-side sensing and synchronous rectification

Integrated, HIPOT-isolated, feedback link

Exceptional CV/CC accuracy, independent of transformer design or external components

Instantaneous transient response ±5% CV with0-100-0% load step

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