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POWER SUPPLY, POWER MANAGEMENT DEVICE APPLIED TO A POWER SUPPLY, AND METHOD FOR PERFORMING BROWN-OUT PROTECTION AND OVERHEAT PROTECTION OF A POWER MANAGEMENT DEVICE
POWER SUPPLY, POWER MANAGEMENT DEVICE APPLIED TO A POWER SUPPLY, AND METHOD FOR PERFORMING BROWN-OUT PROTECTION AND OVERHEAT PROTECTION OF A POWER MANAGEMENT DEVICE
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机译:电源,应用于电源的电源管理装置以及执行电源管理装置的过负荷保护和过热保护的方法
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摘要
A power supply can provide brown-out protection and overheat protection. The power supply includes a rectifier, a transformer, and a power management device. The rectifier is used for receiving an alternating current voltage. The alternating current voltage has a voltage cycle. The transformer coupled to the rectifier has an inductor coupled to a switch for supplying an output voltage. The power management device is used for controlling the switch to make the inductor save power or release power. The power management device has a multi-functional pin coupled to the rectifier for receiving a detection voltage corresponding to a positive half cycle of the alternating current voltage. The multi-functional pin is also coupled to a thermistor for receiving an overheat protection signal.
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