| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic starting circuit of a single-phase AC motor which has a stable operating state, a long life, a simple structure of an electric circuit, a low cost, and a compactness. SOLUTION: The electronic starting circuit of a single-phase AC motor includes a checking circuit (2), a rectification wave filter circuit (3), a triggering circuit (4), and an electronic switching circuit (5), etc. Among them, the checking circuit (2) is coupled to a main coil (1) of the motor in series, and the electronic switching circuit (5) is coupled to a motor starting coil (6) in series, and further, the checking circuit (2) converts the current parameters of the main coil (1) of the motor into a checking signal. The checking signal is sent to the input end of the triggering circuit (4) via the processing of the rectification wave filter circuit (3). The triggering circuit (4) so controls the opening/closing of the electronic switching circuit (5) by the signal of the checking circuit (2) as to control the ON/OFF of the motor starting coil (6). COPYRIGHT: (C)2009,JPO&INPIT
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