Abstract: The embodiments of the disclosure provide a method, apparatus, device and storage medium for presenting information, which relate to the technical field of computers. The method includes: obtaining object search information, in response to the object search information being object category information, determining a target object category corresponding to the object search information, and presenting object information of a plurality of target objects corresponding to the target object category in a search result presentation page; where all the plurality of target objects are different, and object information of a target object includes object attribute information and image resource information of the target object. By employing the above technical solution, when the user is searching the object category, object information of a plurality of target objects different from each other corresponding to the target object category is presented in the search result page.

Abstract: A control method and an apparatus for a controller, and a storage medium and a controller. The control method comprises: determining the current state of the controller, the current state comprising a current top surface, and/or an action method based on the current top surface; determining, according to the preconfigured correspondences between set states and set control modes, a set control mode corresponding to a set state that is the same as the current state in the correspondences as a current control mode; and sending a control command of the current control mode to a target control device. The problem of a cumbersome operation in controlling the temperature and the humidity of an air conditioner by means of a remote-control unit can be solved, and the effect of improving the convenience in operation is achieved.

Abstract: A digitized variable-polarity welding power source based on SiC IGBT, comprising a main circuit and a control circuit. The main circuit comprises a three-phase rectifying filter circuit, a SiC IGBT primary inverter circuit, a high-frequency transformer, a SiC ultrahigh-frequency rectifying filter output circuit, a SiC IGBT secondary inverter circuit and a high-voltage arc stabilizing circuit which are sequentially connected. The control circuit comprises a controller and a power supply control module, and a digitizing tablet, a SiC primary inverter driving module and a SiC secondary inverter driving module which are in connection with the controller via signals.

Abstract: A control method and an apparatus for a controller, and a storage medium and a controller. The control method comprises: determining the current state of the controller, the current state comprising a current top surface, and/or an action method based on the current top surface; determining, according to the correspondence between a preconfigured set state and a set control mode, a set control mode corresponding to a set state that is the same as the current state in the correspondences as a current control mode; and sending a control command of the current control mode to a target control device. The problem of a cumbersome operation in controlling the temperature and the humidity of an air conditioner by means of a remote-control unit can be solved, and the effect of improving the convenience in operation is achieved.