HYBRIDE TYPE LED POWER SUPPLY

摘要

Disclosed is a high-capacity LED power supply device which configures a full-bridge converter and a resonance converter by a hybrid method. The device performs soft switching by using magnetic inductance of transformers of the full-bridge converter and the resonance converter in case of a low load to increase efficiency of the low load and reduces a voltage applied to an output inductor in case of the switching operation to reduce a current ripple by using an inductor having small inductance. In addition, the device uses a single transformer to solve a power distribution problem due to a load.