Summary:
This document describes a non-isolated, high efficiency, high power factor (PF) LED driver. It provides 85 V output voltage and 235 mA output current drive over an input voltage range of 85 VAC to 135 VAC (47 Hz – 63 Hz). This LED driver is designed using the LinkSwitch-PL family of devices LNK460KG.
This document contains LED driver specifications, schematics, PCB schematics, bill of materials, Transformer documentation, and typical performance characteristics.
High efficiency 20W non-isolated buck boost LED driver PCB physical map
High efficiency 20W non-isolated buck boost LED driver circuit diagram
High Efficiency 20W Non-Isolated Buck Boost LED Driver PCB Layout
High Efficiency 20W Non-Isolated Buck Boost LED Driver Component List
See the uploading documentation for details (click to download)
Double Resonant Transformer is a special transformer, which consists of two resonant circuits, namely the main circuit and the resonant circuit. The main circuit is composed of power supply, switching device and main Inductor, and the resonant circuit is composed of resonant capacitor and resonant inductance. When the switching device of the main circuit is turned off, the main inductor stores electric energy, and when the switching device is turned on, the main inductor releases electric energy, which is transmitted to the output terminal through the resonant circuit. Due to the existence of the resonant circuit, the double resonant transformer can realize high-efficiency, low-loss energy transfer, so it is widely used in high-frequency power supply, wireless charging and other fields.
Double Resonant Transformer,Switching Power Transformer,Dual Output Switching Power Adapter,Trigger Transformer
Huizhou Show-Grand Electronics Co., Ltd. , https://www.sgtransformer.com