Abstract: A method of operating an integrated circuit breaker module for a solar power system includes following steps: a first circuit breaker is used to provide a short-circuit trip protection; a second circuit breaker is used to provide a grounding-fault trip protection; the first circuit breaker and the second circuit breaker are integrated to form a modular structure and a linking unit is connected between the first circuit breaker and the second circuit breaker to provide a linking trip operation; and the second circuit breaker trips and the first circuit breaker is simultaneously tripped via the linking unit when a grounding fault occurs. Accordingly, a grounding fault protection, an over-current fault protection, and a short-circuit fault protection are implemented.

Abstract: A wind speed detecting circuit includes a heating unit, a first temperature sensor, a second temperature sensor, a control unit and a driving unit. The first temperature sensor detects a first temperature of an internal portion of an electronic device, thereby generating a first detecting signal. The second temperature sensor detects a second temperature of the heating unit, thereby generating a second detecting signal. The control unit generates a modulation signal according to the first detecting signal and the second detecting signal. In response to the modulation signal, the driving unit generates a driving signal to control operations of the heating unit, so that a temperature difference between the first temperature and the second temperature is maintained constant. A specified relation between the wind speed and the modulation signal facilitates discriminating whether a dust-proof element of the electronic device needs to be replaced.

Abstract: A wind speed detecting circuit includes a heating unit, a first temperature sensor, a second temperature sensor, a control unit and a driving unit. The first temperature sensor detects a first temperature of an internal portion of an electronic device, thereby generating a first detecting signal. The second temperature sensor detects a second temperature of the heating unit, thereby generating a second detecting signal. The control unit generates a modulation signal according to the first detecting signal and the second detecting signal. In response to the modulation signal, the driving unit generates a driving signal to control operations of the heating unit, so that a temperature difference between the first temperature and the second temperature is maintained constant. A specified relation between the wind speed and the modulation signal facilitates discriminating whether a dust-proof element of the electronic device needs to be replaced.