exceptional PowerInt 12W高效高功率因素智能照明电源参考设计DER612详解(4)

The power supply IC controller device, InnoSwitch-CH combines primary, secondary and feedback circuits in a single surface-mounted off-line flyback switcher IC. It incorporates the primary FET, the primary side controller and a secondary-side synchronous rectification controller. The device also includes an innovative new technology, FluxLink™, which safely bridges the isolation barrier and eliminates the need for an optocoupler. |

The added valley-fill passive power factor correction circuit is a simple and low cost solution to meet power factor requirements for lighting applications.

DER-612 using InnoSwitch-CH offers a highly efficient constant voltage supply with a fast transient load response. The design achieves high power factor (0.9) at low line. The key design goals were high efficiency, optimized power factor and low components count.

图2.参考设计DER612外形图(顶视图)

图3.参考设计DER612外形图(底视图)

参考设计DER612主要指标:

图4.参考设计DER612电路图

参考设计DER612材料清单:

其它部件:

图5.参考设计DER612变压器电路和结构调图

图6.参考设计DER612 PCB设计图(1)

图7.参考设计DER612 PCB设计图(2)

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