Abstract: An automatic voltage-identifying power supply device has a control module, a voltage regulation circuit, a current load measuring circuit electrically connected with an external post-stage power-receiving device, a power supply circuit and a pre-stage power supply device. After the post-stage power-receiving device is electrically connected with the current load measuring circuit, the control module can control the voltage regulation circuit to output a test voltage signal to the post-stage power-receiving device so that the test voltage signal is altered according to a preset sequence (e.g. progressively increasing) and the current load measuring circuit measures a response current signal of the post-stage power-receiving device corresponding to the test voltage signal. When a variation of the response current signal or a power variation is stable, the control module sets up the stable test voltage signal as an input voltage to the post-stage power-receiving device.

Abstract: A wind-powered energy saving system has a power assembly, a temperature adjusting assembly and an increasing assembly. The power assembly has a fan device and an air compressor. The fan device has a rotating shaft. The air compressor is connected to the rotating shaft of the fan device. The temperature adjusting assembly is electrically connected to the power assembly and has a heat-eliminating device and a heating device. The heat-eliminating device is connected to the air compressor and has an inlet tube and multiple first tempering panels. The heating device is connected to the heat-eliminating device and has a linking tube and multiple second tempering panels. The increasing assembly is connected to the temperature adjusting assembly and has an air-feeding pipe, an exiting device and a spraying device.

Abstract: An automatic voltage-identifying power supply device has a control module, a voltage regulation circuit, a current load measuring circuit electrically connected with an external post-stage power-receiving device, a power supply circuit and a pre-stage power supply device. After the post-stage power-receiving device is electrically connected with the current load measuring circuit, the control module can control the voltage regulation circuit to output a test voltage signal to the post-stage power-receiving device so that the test voltage signal is altered according to a preset sequence (e.g. progressively increasing) and the current load measuring circuit measures a response current signal of the post-stage power-receiving device corresponding to the test voltage signal. When a variation of the response current signal or a power variation is stable, the control module sets up the stable test voltage signal as an input voltage to the post-stage power-receiving device.