111results about How to "Operational stability can be improved" patented technology

An organic light-emitting device with enhanced operational stability comprising an anode; a hole-transporting layer disposed over the anode; a light-emitting layer disposed over the hole-transporting layer for producing light in response to hole-electron recombination, wherein the light-emitting layer includes at least one organic host material and one organic luminescent dopant material; a stability-enhancing layer disposed in contact with the light-emitting layer, wherein the stability-enhancing layer includes at least one organic host material and one inorganic dopant material; an electron-transporting layer disposed over the stability-enhancing layer; and a cathode disposed over the electron-transporting layer.

According to the present invention, an operational stability enhancing device for construction machinery is provided. The operational stability enhancing device for construction machinery includes: a plurality of cameras configured to capture surrounding images of construction machinery; a plurality of sensors configured to detect an obstacle located in the surrounding area of the construction machinery; a monitor configured to display the surrounding images captured by the plurality of cameras; and a control unit configured to, in a case where a detected object is detected in a surrounding area of a moving path by the sensor, and the detected object is an avoidance processing target, display an image of the captured detected object on a monitor through screen conversion or change the image of the captured detected object so as to be easily recognized by an operator when the construction machines approaches the detected object.

The purpose of the present invention is to provide an LED drive circuit that is capable of ameliorating insufficient lighting and improving power utilization efficiency. This LED drive circuit is an LED drive circuit wherein the number of LEDs that are turned on varies in accordance with the voltage of a commercial alternating-current power supply, the LED drive circuit being characterized by having an LED row in which multiple LEDs are connected in series, a current detection resistor for detecting a current that flows in the LED row, a bypass circuit that is connected to an intermediate connection part of the LED row, and a current-limiting circuit that is connected to an end of the LED row, wherein the bypass circuit includes a first current-limiting component, the current-limiting circuit includes a second current-limiting component, the first current-limiting component is controlled on the basis of a voltage across the ends of the current detection resistor or a voltage that is obtained by dividing the voltage across the ends of the current detection resistor, and the second current-limiting component is controlled by the divided voltage that is obtained by dividing the current detection resistor.

A double-effect thermoelectric cooling apparatus is described. The double-effect thermoelectric cooling apparatus includes a heat-dissipating barrel, a wind guide, cooling fins, and a fan. The heat-dissipating barrel further includes a thermoelectric chip-cooling module and heat-dissipating fins disposed therein. The fan drives a part of air passing through the heat-dissipating fins to remove a heat exchanged by the thermoelectric chip-cooling module. One end of the wind guide is coupled to a heat source of an electronic device, for example, a CPU or a graphic card of a computer. Another end of the wind guide is coupled to the fan to guide another part of the air through the cooling fins reducing the temperature thereof to the heat source of the electronic device to reduce the operating temperature of the heat source.

An operating device (40) for a state-changing element that is an embodiment of the present invention includes a detent mechanism (50) for displacing and positioning displacement members (22, 33) included in a state-changing element (10), an actuator (60) for driving the detent mechanism (50), and a control unit (5) that controls the actuator (60). The control unit (5) includes an initial motion means (S1) that, in a case of receiving a request to change the state of the state-changing element (10) and changing the position of a detent member (51), drives an electric motor (61) and reduces play in the rotation direction that exists in the actuator (60), and a management means (S2 to S5) that, when it has been determined that the play has been reduced, sets a value obtained by tacking on play in the rotation direction that exists in a coupling portion between a spindle (52) and an output shaft (63) to a rotation angle necessary for a position change of the detent member (51) corresponding to the request, as a target rotation angle of the electric motor (61).

Chlorine dioxide generating processes of the single vessel type which produce chlorine dioxide of high purity are monitored and controlled by a computer using Advanced Control Strategies for steady, stable operation with optimum chemical usage on the basis of a desired chlorine dioxide production rate as the sole input from an operator to the computer program effecting the computer control.

A drive device comprises an air cylinder 123 for causing an operating member for a packaging operation to perform a reciprocating motion, a sensor 132 for detecting the cycle velocity or time of the air cylinder 123, a control valve 222 for controlling the pressure or flow rate of the fluid to be supplied to the air cylinder 123, and an a sequencer 201 for setting a reference value SV corresponding to the cycle velocity or time of the air cylinder 123, receiving a value PV detected by the sensor 132 as an input, calculating a valve opening degree so as to reduce the deviation of the detected value PV from the reference value SV to zero and setting the opening degree of the control valve 222 based on the calculated valve opening degree.

A USB connector positioning structure includes a protective casing affixed to a frame shell of a machine case around a USB connector insertion slot for guiding insertion of a male USB connector through the USB connector insertion slot into a plug hole in a female USB connector at a circuit board inside the machine case, and a positioning holder shell pivotally coupled to the protective casing and biasable between a close horizontal position and an opened vertical position and movable along two horizontal guide slots of the protective casing for holding an inserted male USB connector in connection with the female USB connector in the machine case and protecting the inserted male USB connector against external pressure, and holding screws for locking the protective casing and the inserted gale USB connector in position.

A level shifter circuit includes a level shifting unit configured to receive signals that may vary in a first range via a positive input terminal and a negative input terminal, respectively and to output signals that may vary in a second range to a positive output terminal and a negative output terminal, respectively, where the second range is larger than the first range, a first pre-charging unit configured to pre-charge the positive output terminal to a predetermined level when a clock is in a first level, and a second pre-charging unit configured to pre-charge the negative output terminal to the predetermined level when the clock is in the first level.

A cutter assembly has a blade holder, a blade and a limiting element. The blade holder has an elongated blade chamber defined along a longitudinal direction of the blade holder and an opening defined in one end of the blade holder and communicating with the blade chamber. The blade is moveably mounted in the blade chamber. The limiting element is mounted on the blade holder at a position adjacent to the opening and has a limiting segment extending into the blade chamber and abutting a side surface of the blade.

A semiconductor device including: a first memory cell including a non-volatile first variable resistance element that stores data by varying a resistance value and a selection transistor that selects the first variable resistance element; a first memory layer provided with more than one such first memory cell arranged in a plane; a second memory cell including a non-volatile second variable resistance element that stores data by varying a resistance value and a selection diode that selects the second variable resistance element; and a second memory layer provided with more than one such second memory cell arranged in a plane; wherein more than one such second memory layer is stacked over the first memory layer.

An inverting apparatus and a control method thereof are provided. The inverting apparatus includes an inverting circuit, a detection circuit, and a control circuit. The inverting circuit converts a DC input power into an AC output power. The detection circuit detects an input voltage and an input current. The control circuit provides a control signal for disturbing the input voltage, such that a voltage value of the input voltage is adjusted to a command voltage represented by the control signal. The control circuit calculates an input power corresponding to each of time points, calculates a power variation between the disturbed power and the undisturbed power, then determines whether the power variation is larger than a predetermined variation, and sets a disturbance voltage according to the determination result, based on an MPPT operation or based on a disturbance direction of the command voltage of the previous time point.