57results about How to "Fix driver issues" patented technology

The invention discloses an electrical appliance, a screen driving method thereof and device. The method comprises the following steps: after the electrical appliance is power-on, signals of at least one IO pin are read, and according to the signals of at least one IO pin, level combination signals are generated; according to the level combination signals, a corresponding screen identifier is acquired; and according to the corresponding screen identifier, a corresponding screen driver is loaded to drive screen display. In the method, through reading the level combination signals inputted by theIO pin and loading the corresponding screen driver, driving of multiple screens can be realized, and the technical problems of complex screen production and troublesome after-sales in the case of configuration without I2C can be solved, thus improving the production efficiency and the maintenance efficiency of the screen in the electrical appliance.

The invention discloses a three-state high-gain current source inverter operation control method, which is to control the output current of the power grid, the feed-forward compensation control of the voltage of the power grid, and the output capacitor voltage of the power grid on the AC output side of the inverter. The DC input side of the inverter performs DC current control, and performs space vector pulse width modulation (SVPWM) wave generation according to the obtained control results, thereby driving the seven-way switch tubes of the three-state high-gain current source inverter. Aiming at the high-gain current-type inverter whose publication number is CN103259442A, the present invention provides a suitable three-state high-gain current-source inverter operation control method, which effectively solves the driving problem of its seven-way switch tube and realizes DC stable operation on both the AC side and the AC side.

The invention discloses a double-layer double-phase reactive linear precision adjustment sliding table. The double-layer double-phase reactive linear precision adjustment sliding table comprises an inverse phase fixed plate, a linear sliding rail, a normal phase fixed plate and a movable plate, wherein the inverse phase fixed plate and the normal phase fixed plate are tooth-shaped plates made of silicon steel sheets, and are respectively wound by a plurality of coils; the coils comprise A phase coils and B phase coils; the polarities of corresponding N poles and S poles of the coils with the same phase on the inverse phase fixed plate and the normal phase fixed plate are opposite; the tooth shapes of the coils with the same phase are aligned; the distances of any coils and adjacent coils are respectively 3 / 2 tooth pitches and 1 / 2 tooth pitches; the movable plate is arranged between the inverse phase fixed plate and the normal phase fixed plate; the linear sliding rail is arranged below the movable plate; and the movable plate and the linear sliding rail form a sliding pair. The double-layer double-phase reactive linear precision adjustment sliding table can realize high-precision axial adjustment of the sliding table, is simple in control mode, and is compact in appearance.