摘要:
A power module is provided which includes: a power-supply voltage terminal for inputting a power-supply voltage; a ground terminal; a first voltage terminal; a second voltage terminal; a first to a third switch; and a first to a third amplification circuit which amplify control signals for controlling the first to the third switch, respectively. The first switch is connected between the power-supply voltage terminal and the first voltage terminal. The second switch is connected between the first voltage terminal and the ground terminal. The third switch is connected between the second voltage terminal and the ground terminal.
摘要:
A predrive circuit, a drive circuit and a display device which are capable of driving output elements so as to transmit control signals stably even when reference potentials generated on the output elements side turn to high voltage. A first level shift circuit outputs a flow signal which is an input signal according to a first level shift potential. A second level shift circuit outputs a flow signal which is the flow signal output from the first level shift circuit, according to a second reference potential. A level shift power supply circuit supplies the level shift potential based on a prescribed power supply voltage and the second reference potential to the first level shift circuit and the second level shift circuit.
摘要:
A plasma display apparatus with small-sized circuits and of a low cost has been disclosed. The apparatus comprises a display panel, having first electrodes and second electrodes adjacently arranged by turns and third electrodes that extend in the direction intersecting the first electrodes and the second electrodes, opposed to each other so as to sandwich a discharge area therebetween, an X drive circuit that drives the first electrodes, a Y drive circuit that drives the second electrodes, an address drive circuit that drives the third electrodes, and a secondary power supply that uses a pulse relating to the drive signal generated in the X drive circuit or the Y drive circuit.
摘要:
There is provided a drive circuit including: a first signal line connectable to a capacitive load; a second signal line connectable to the capacitive load; a first switch connected between the first signal line and a first potential; a second switch connected between the first signal line and a second potential; a capacitor connected between the first and second signal lines; a third switch connected between the second signal line and the second potential; and a coil circuit connected between at least one of the first and second signal lines and the second potential. At least one of the second switch and the third switch has a configuration in which plural n-channel field-effect transistors are connected in series.
摘要:
A signal transfer circuit in a pre-drive circuit converts the reference potential of a control signal, supplied from a drive control circuit, to the reference potential of an output element. The control signal is then amplified in a signal amplifier circuit and thereafter supplied to the output element. This makes it possible to isolate the reference potential and transfer the control signal to the output element even when the reference potentials of the drive control circuit and the control signal are different from that of the output element. The drive control circuit can also be prevented from being affected by variations in potential of the output element or the like.
摘要:
A plasma display apparatus, in which the supply of a sustain pulse can be controlled for each display line and power consumption can be reduced by terminating the supply of the sustain pulse to the display line in the non-display area, has been disclosed. In this plasma display apparatus, a switch circuit is provided respectively on each wiring path of the sustain pulse to each electrode of a first electrode (X electrode) and a second electrode (Y electrode) and it is possible to control whether or not to supply the sustain pulse for each electrode.
摘要:
An air purifier includes a main body defining an air passage therein to allow sucked air to pass therethrough prior to being discharged, and a first filter installed in the main body to be switched between a closed state and an open state. The first filter removes contaminants from the sucked air in the closed state, and allows the sucked air to pass through the air passage in the open state. The air purifier may include a main body to suck and discharge air, with a bypass passage formed in the main body so that the bypass passage is opened or closed by a door, and a first filter installed in the main body. The sucked air passes through the first filter prior to being discharged when the door is closed, and passes through the bypass passage prior to being discharged when the door is opened.
摘要:
An electrode drive circuit performs interlaced scanning, ensuring that the phases of the sustaining pulse in odd-numbered lines and even-numbered lines among L1 to L8 between surface discharge electrodes are the reverse of each other. With this, when either odd-numbered lines or even-numbered lines are displayed, the voltages applied between the electrodes of the undisplayed lines are at 0, eliminating the necessity for partitioning walls on the surface discharge electrodes. In surface discharge electrodes, X electrodes are provided on the two sides of a Y electrode and the area between the Y electrode and the X electrode on one side is assigned a display line at an odd-numbered frame, and the area between the Y electrode and the X electrode on the other side is assigned a display line in an even-numbered frame. Alternate areas between the surface discharge electrodes are assigned as blind lines and a discharge light emission in the blind lines is blocked or incident light to the blind lines from the outside is absorbed. Address electrodes are provided for each monochromatic pixel column and selectively connected with the pads above them, performing simultaneous selection of lines.
摘要:
A method of driving a plasma display is disclosed, in which the deterioration of the display quality which otherwise might be caused by the light emission due to a reset pulse is prevented thereby to improve the display quality. The voltage of the reset pulse is set taking the voltage due to the accumulated charge into consideration in accordance with a specific display. In this way, the self-erasure discharge is not caused in all the cells but only in the cells involved in display. The display brightness is set also for the self-erasure discharge as a discharge involved in display like the sustaining discharge.
摘要:
Method for driving a plasma display panel. At least one first discharge sustaining pulse is applied to a first pair of display electrodes, and at least one second discharge sustaining pulse applied to an adjacent pair of display electrodes. The first and second discharge sustaining pulses are applied such that they are in the same phase as one another and/or such that a current in the first pair of display electrodes flows in the opposite direction from a current in the adjacent pair of display electrodes.