Single-phase motor-driving device with energy saving module

Abstract

The invention relates to a single-phase motor-driving device with an energy saving module, which is characterized by comprising an output-stage control circuit, a control interface and an energy saving module, wherein the output-stage control circuit is used for providing a plurality of driving signals to drive a first driving transistor to be complementally conducted and not conducted with a second driving transistor, and a single-phase motor is driven by an induction coil to rotate; the control interface is used for providing at least one control signal; the input end of the energy saving module is connected with the control signal, and the output end of the energy saving module is connected with the output-stage control circuit. By the provided control signals of the control interface, the output end of the energy saving module can lead the output-stage control circuit to close or restart the driving signals, and the single-phase motor is stopped or rotated again.

Description

technical field [0001] The present invention relates to a drive device for a single-phase motor, in particular to a drive device capable of saving energy and improving the operating efficiency of a single-phase motor. The single-phase motor is stopped or re-rotated through an energy-saving control module, and at the same time is controlled by a single-phase motor. When the phase motor rotates to the magnetic pole commutation region, it continues to provide multiple driving voltage pulses, so as to prevent the driving current from generating a whole period of zero current state in the commutation region. Background technique [0002] First, please refer to Figure 8A and Figure 8B , a schematic diagram of a single-phase motor drive device and its drive signal in the prior art, where Figure 8A A schematic diagram of a single-phase motor drive circuit in the prior art, and Figure 8B Corresponding to Figure 8A Schematic diagram of the driving waveform (or driving signal) of...

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Problems solved by technology

[0010] In order to solve the problems of vibration, noise and large power consumption of the aforementioned single-phase motor, the present invention first provides a driving device to compensate for the lack of current smoothness in the prior art; in addition, based on the consideration of energy saving, the present invention It also provides an energy-saving module, which can selectively shut down the anti-lock protection circuit and the control circuit, so that the single-phase motor can be stopped at an appropriate time to save energy consumption

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