Drive circuits and home appliances
A technology for driving circuits and circuits, applied in the directions of instruments, electrical components, adjusting electrical variables, etc., can solve problems such as failure to detect failure and damage of high-voltage ion modules, and achieve the effect of avoiding damage.
Active Publication Date: 2018-09-04
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology
The disadvantage of this fault detection control strategy is that during the startup process of the high-voltage ion module, it cannot detect whether the high-voltage ion module is damaged or not.
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[0038]In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0039] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.
[0040] Such as figure 2 As shown, according to the embodiment of the first aspect of the present invention, a driving circuit 100 is proposed, including: a DC power supply 102, a sampling module 104...
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The invention provides a drive circuit and household appliance. The drive circuit comprises a direct-current power supply, a sampling module, a boosting transformer, a voltage doubling module, a switching device and a processor. The input terminal of the sampling module is connected to the direct-current power supply; a first output terminal of the sampling module is connected to a first end of a primary coil of the boosting transformer; a second output terminal of the sampling module is connected to the input terminal of the processor; the output terminal of the processor is connected to the input terminal of the switching device; the output terminal of the switching device is connected to a second end of the primary coil; and a secondary coil of the boosting transformer is connected to the voltage doubling module connected to a high-voltage ion module. Furthermore, the sampling module is used for collecting a current value of the primary coil and corresponding time; and the processor is used for detecting whether a fault occurs at the high-voltage ion module based on the collected current value and corresponding time. According to the technical scheme, whether a fault occurs at the high-voltage ion module can be detected while the high-voltage ion module is started.
Description
technical field [0001] The present invention relates to the technical field of household appliances, in particular to a driving circuit and a household appliance. Background technique [0002] At present, air purification is achieved through ion purification technology. The principle is that the drive circuit outputs ultra-high DC voltage to the high-voltage ion module, so that the air flowing through the high-voltage ion module is ionized, and the impurities in the air are charged, and then adsorbed by the dust collecting plate of the opposite voltage. impurities, thereby cleaning the air. [0003] According to the above principles, the high-voltage ion module can be abstracted as a capacitive load, in which the high-voltage end is the capacitor pole, and the inflowing air is the dielectric. It can be seen that, when the electrode structure remains unchanged, the temperature, relative humidity, air pressure, impurity content and flow rate of the air will all cause changes ...
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IPC IPC(8): H02M3/335
CPCH02M3/335
Inventor 麦智炜阮兆忠
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD