Abstract: A cleaning apparatus adapted to clean at least one object is provided. The cleaning apparatus includes a chamber, a fixed assembly, a movable assembly and a driving unit. The chamber is adapted to receive a cleaning liquid. The fixed assembly is disposed within the chamber. The movable assembly is movably disposed on the fixed assembly. The object is adapted to be hanged on the fixed assembly or the movable assembly. The driving unit is connected to the movable assembly and adapted to drive the movable assembly to perform a reciprocating motion along a first direction, so that the object is clapped by the fixed assembly and the movable assembly.

Abstract: A comparator circuit according to an embodiment of the present invention includes a comparator configured to compare an input signal voltage with a reference voltage obtained by smoothing the input signal by use of a resistor and a capacitor, and output a result of the comparison, a discharge circuit configured to compare a first addition signal which is obtained by adding a positive first voltage to the input signal voltage, with the reference voltage, and discharge the capacitor when the first addition signal is lower than the reference voltage, and a charge circuit configured to compare a second addition signal which is obtained by adding a negative second voltage to the input signal voltage, with the reference voltage, and charge the capacitor when the second addition signal is higher than the reference voltage.