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厦华37HU电源板,集成电路采用STR-A6159M+NCPl653A+L6599D组合方案,为主电路板和背光灯逆变器提供24V、12V、9V和受控的5V、32V电压。一、电源及保护电路工作原理厦华37HU电源板电路框图如图1所示。该电源分为三部分:一是以厚膜电路N502(STR-A6159M)核心组成的副开关电源,为主板上微处理器控制系统提供5V、32V供电,同时为功率因数校正(PFC)电路和主
XUHUA 37HU power supply board, integrated circuit using STR-A6159M + NCPl653A + L6599D combination of programs for the main circuit board and backlight inverter provides 24V, 12V, 9V and controlled 5V, 32V voltage. First, the power and protection circuit works Primarily 37HU power board circuit block diagram shown in Figure 1. The power is divided into three parts: First, the thick-film circuit N502 (STR-A6159M) core composed of sub-switching power supply for the microprocessor control system on the motherboard to provide 5V, 32V power supply, while the power factor correction (PFC) circuit and the Lord