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Single lithium battery 3.7V power supply 2x12w stereo boost audio power amplifier IC combination solution
2022-06-25 06:32:00 【YFKlixiangning】
Shenzhen yongfukang Technology Co., Ltd. launched based on HT876+HT7180 A single lithium battery 3.7V Boost to 9.5V、2x12W Stereo boost audio amplification combination solution , No periphery required MOS tube 、 The boost efficiency is up to 90%, The periphery is simple 、 Easy to use . Project introduction This scheme is roughly divided into two main levels ： 1, use HT7180 High Efficiency Boost Converter . This design 3.7V A single lithium battery is boosted to 9.5V Supply power to the power amplifier chip ; 2, use HT876 With sound proof amplifier IC,9.5V Provide 2*12W/4 o ( THD+N=10%) Continuous power output ; Application schematic diagram
DEMO PCB Screenshot
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