101results about How to "Stable working current" patented technology

The invention discloses a pixel circuit and a driving method thereof, and an organic electroluminescent display panel. A driving transistor, a data writing-in module, a compensation control module, a storage module, a luminescence control module and a luminescent device are included. Through mutual cooperation of the above four modules, a work current of luminescence of the luminescent device driven by the driving transistor is unrelated to a threshold voltage of the driving transistor; an influence of drifting of the threshold voltage on the luminescent device can be avoided so that the work current used for driving the luminescent device to carry out luminescence can keep stable and uniformity of image display brightness is increased.

The invention discloses a pixel circuit, a driving method of the pixel circuit, an organic electroluminescence display panel and a display device. The pixel circuit comprises a data writing-in module, a power supply voltage control module, a breakover control module, a storage module, a light-emitting control module, a driving transistor and a light-emitting device. Through cooperation of the five modules and the driving transistor, the working current, for driving the light-emitting device to emit light, of the driving transistor in the pixel circuit can be only relevant to the voltage at a data signal end and the voltage of an original signal end and be irrelevant to the threshold voltage of the driving transistor and the voltage of a first power supply end, and it can be avoided that the working current flowing across the light-emitting device is influenced by the threshold voltage of the driving transistor and the IR Drop, so that the working current for driving the light-emitting device to emit light is maintained stable, and then the frame brightness uniformity of a display area in a display device is improved.

The invention discloses a display panel and a structure thereof, which comprise a plurality of scanning lines and a plurality of data lines. A pixel circuit is configured at the position where each scanning line is intersected with each data line. In addition, the display panel disclosed by the invention is also provided with a plurality of cathode wires, which are parallel to the scanning lines; among which, all the pixel circuits on the same scanning line are coupled with the same cathode wire and each cathode wire is coupled to a cathode voltage through a switching circuit, and various switching circuits determines whether to conduct the cathode voltage to the corresponding cathode wire according to a control signal. As the elements in the single pixel circuit are reduced, the difficulty of wiring can be lowered, the aperture ratio of the display panel can be increased, the life of the organic light emitting diode element can be extended, and the quality of the picture on the display panel can be kept. The working current in the pixel circuit is stabilized, and the service life of the pixel circuit is extended.

The invention provides a pixel circuit, a driving method of the pixel circuit, a display panel and a display device. The pixel circuit comprises a data writing module, a compensation control module, a storage module, a luminescence control module, a driver transistor and a luminous device. In the cooperation of the four modules and the driver transistor, a working current used for making the driver transistor drive the luminous device to give out light in the pixel circuit is only correlated with the voltage at the data signal end and the voltage at a reference signal end, and uncorrelated with the threshold voltage of the driver transistor and the voltage of a first power source end so that the working current flowing through the luminous device can be avoided from being affected by the threshold voltage of the driver transistor and IR Drop, accordingly the working current driving the luminous device to give out light keeps stable, and then the uniformity of screen brightness in a display area in the display device can be improved.

The present invention discloses a crystal oscillator. The crystal oscillator comprises: a crystal, an oscillating circuit, a first driving circuit, and a second driving circuit, wherein the oscillating circuit comprises a first oscillating transistor and a second oscillating transistor; the first oscillating transistor and the second oscillating transistor are used for providing transconductance for oscillation starting of the crystal and maintenance of oscillation; the first driving circuit is used for generating a stable reference current; and the second driving circuit is used for supplyingan operating voltage to the oscillating circuit, and enabling the operating current of the first oscillating transistor and the second oscillating transistor to be a stable current according to the reference current; and the operating voltage is used to control the first oscillating transistor and the second oscillating transistor to operate in a subthreshold region.

The invention discloses a pixel circuit, a driving method thereof, an organic electroluminescence display panel and a display device, comprising a data write-in module, a reset module, a first storing module, a second storing module, a light emission control module, a driving transistor and a light emitting device. For the cooperation of the above five modules, the working current of the light emitting device driven by the driving transistor in the pixel circuit can be made relevant only to the voltage of the data signal terminal and the voltage of the reference signal terminal, irrespective of the threshold voltage of the driving transistor. This can avoid the effect of the threshold voltage of the driving transistor on the working current across the light emitting device, thereby stabilizing the working current for driving the light emitting device and improving the brightness uniformity of the display area in the display panel.

The invention provides a pixel driving circuit, a driving method, a display panel and a display device.The pixel driving circuit is used for driving a light-emitting element and comprises a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a drive transistor and a capacitor, wherein driving current provided by the light-emitting element is irrelevant to threshold voltage of the drive transistor through coordination of the transistors and the capacitor in the pixel driving circuit, so that influence on the light-emitting element is avoided, operating current of the light-emitting element is kept stable, and display brightness uniformity and good display effect of the display device are guaranteed.

The invention relates to the technical field of 3D glasses and provides an energy-saving control method of the 3D glasses. The method can be applied to the 3D glasses with a receiving unit, which comprises the following steps of: A, receiving a synchronous signal; B, judging whether the synchronous signal is valid or not, if so, leading the 3D glasses to enter a synchronous mode, leading the receiving unit to enter a dormant state, and executing the step C, and otherwise, going back to the step A; and C, capturing synchronous signals once at intervals of N synchronous cycles. By applying the invention, the capture time of the synchronous signal can be greatly shortened, the power consumption can be reduced and the product can be ensured to work stably. The method provided by the inventionis suitable for various types of active shutter type 3D glasses.

The invention discloses a blade structure of a double-shaft shredding machine. The blade structure comprises a flying wheel and a plurality of blades, wherein the flying wheel comprises a flying wheel body and a plurality of ratchets; the ratchets are annularly arranged on the side wall of the flying wheel body; the number of the ratchets is equal to the number of the blades; the blades and the ratchets are detachably and correspondingly connected; the bottom surfaces of the blades are attached to the front surfaces of the ratchets; the side surfaces of the blades are matched with and attached to the side surfaces of the ratchets. The blade structure disclosed by the invention has a good crushing effect, convenience in replacement and maintenance and a simple structure. The invention also discloses a knife roller of the double-shaft shredding machine. The knife roller disclosed by the invention has high stability, convenience in maintenance and a good crushing effect.

This invention discloses an integrated AC LED filament including two arrays of parallel serial integrated dies in opposite conduction directions composing at least two stages of serially integrated dies, a stage of die refers to one die or many dies connected in series or parallel or a mixed way. Advantages: since the filament contains two arrays of serial integrated dies in opposite conduction direction, it is connected with AC supply directly in proper voltage sphere to realize economic and high-efficient illumination, the working voltage of LED filament is designed in standardization by controlling numbers of dies and kinds, various kinds of products can be got.

The invention discloses a self-adaptive stop control method and device for an electric air compressor. The method comprises the following steps: first, detecting the pressures of air storing tanks; then, comparing the pressure values of the air storing tanks with set air pressure values; when the pressure of the main air storing tank reaches an air pressure value required by the braking of the whole vehicle, detecting the working current of the air compressor; and when the working current of the air compressor reaches unloading current, stopping the air compressor, wherein the unloading current is a stable current value that the air compressor reaches after unloading. The precise control of the electric air compressor is realized through the process.

The invention discloses a light emitting diode (LED) lighting device having an open / short circuit protection function and a lighting circuit. The LED lighting device having the open / short circuit protection function comprises at least two light source modules, at least two LED sets, a power supply, and a plurality of protection components, wherein the LED sets are correspondingly arranged in the light source modules one by one, and each LED set forms a mutually independent loop and comprises a plurality of LEDs connected in series; the power supply is connected with and used for providing constant current electricity for the LED sets respectively; and the protection components, of which the number is corresponding to that of the LEDs, are arranged in the light source modules and used for ensuring that the open LEDs do not affect the normal work of other LEDs. The LED lighting device has the advantages of long service life and low maintenance cost.

The invention discloses an audio frequency amplifier adjunct circuit used for eliminating an emitter output stage. The audio frequency amplifier adjunct circuit used for eliminating the emitter output stage comprises a detection circuit, an amplifying circuit and an adjustable constant flow source circuit, wherein the detection circuit is composed of a diode and an audion, the diode is connected with the base of the audion, and the diode of the detection circuit generates reference voltage to compare and detect the constitution of the circuit; the amplifying circuit is used for amplifying current signals; the adjustable constant flow source circuit is used for generating adjustable constant flow currents; the detection circuit is connected with the amplifying circuit, and the amplifying circuit is connected with the adjustable constant flow source circuit. The adjunct circuit provides reference voltage and carries out comparison detection, the currents are amplified and then enter the adjustable constant flow source circuit to generate adjustable constant flow currents so that an audio amplifier can be controlled and the work voltage of an output stage of the audio amplifier can keep stable, the emitter output of the amplifying circuit is eliminated, collector output is achieved, and the interference with the output stage of the audio amplifier of a transistor by reactive potential voltage of a loudspeaker is eliminated.

The invention discloses a vending machine and a stock-out monitoring method thereof. The vending machine comprises a cabinet which is internally equipped with a plurality of layers of goods storage supporting plates. The space above each layer of goods storage supporting plate is divided into a plurality of goods channels. A signal transmitter and a signal receiver which are oppositely arranged upand down are arranged at the front end of each goods channel to monitor whether there are goods left or not in the forefront of the corresponding goods channel. If there is no goods at the foremost end of any goods channel, the signal receiver can receive a signal transmitted by the signal transmitter and can remind a tally man to supplement goods in time. The vending machine is further providedwith an energy limiting circuit and an explosion-proof box. Some power utilization modules are installed in the explosion-proof box, so that sparks generated by the circuits are prevented from being in contact with the outside. The energy limiting circuit can keep the working currents of electrical components on monitoring board cards stable and prevent the exposed electrical components on the monitoring board cards from generating sparks. Thus, the vending machine can be also used in places with inflammable and explosive substances such as gas stations in addition to common occasions.

The embodiment of the invention discloses a pixel drive circuit, a display panel, a display device and a pixel driving method. The pixel drive circuit comprises a data writing control module, a first charging control module, a second charging control module, a first compensation control module, a second compensation control module, a first luminescence control module, a second luminescence control module, a storage module, a driving module and an organic luminescence element. The storage module is configured to capture the threshold voltage of the driving module and compensate the threshold voltage of the driving module to allow the current flowing through the organic luminescence element at the luminescence phase to have nothing to do with the threshold voltage of the driving module. According to the technical scheme of the embodiment provided by the invention, the problem can be solved that the display is bad caused by the shift of the threshold voltage of the pixel drive circuit and the display effect is improved.

The invention discloses a high-performance and energy-saving drying system for radix codonopsis medicine materials. The high-performance and energy-saving drying system for the radix codonopsis medicine materials is characterized by comprising a temperature compensating device, a baking air channel (1), an air intake channel (2), dehumidifiers (3) arranged at an air inlet of the air intake channel (2), an exhaust fan (4) arranged at an air outlet of the air intake channel (2), and the like. The temperature compensating device is formed by a control system (71), a transmission device, a heater (73) and an air blower (72); the control system (71) is formed by a control chip, a hybrid signal processing circuit, a direct-current voltage stabilizing circuit, a trilinear drive circuit, a current regulating circuit, a temperature sensor (74) and a buzzer. According to the high-performance and energy-saving drying system for the radix codonopsis medicine materials provided by the invention, a heat pump is adopted to replace a traditional electrical heating device, so that the power consumption of the high-performance and energy-saving drying system is only a quarter of the power consumption of a traditional drying device. The temperature compensating device is also arranged, so that the drying temperature stability and the drying efficiency of the system are effectively improved.

The invention discloses a drying energy-saving system for bulbus fritillariae cirrhosae as a medicinal material. The drying energy-saving system is characterized by mainly consisting of a temperature compensating device, a baking air duct (1), an air inlet duct (2) arranged above the baking air duct (1), a dehumidifier (3) arranged at an air inlet of the air inlet duct (2), a heating device (5) arranged in the middle of the air inlet duct (2) and the like, wherein the temperature compensating device consists of a control device (71), a temperature sensor (74), a blower (73), a linear driving circuit and a heater (72). According to the drying energy-saving system disclosed by the invention, a heat pump is adopted to replace a traditional electric heating device, so that the power consumption of the drying energy-saving system is only one fourth that of a traditional drying device; and the temperature compensating device is arranged and can be used for performing temperature compensation on the inside of the baking air duct according to acquired temperature information about the temperature of the baking air duct, so that the stability of the drying temperature and the drying efficiency of the system are effectively improved.

The invention discloses a triode overcurrent protection type energy-saving power supply circuit for a cold-light LED. The triode overcurrent protection type energy-saving power supply circuit is characterized by mainly comprising a control chip U2, a triode VT2, a diode withstand voltage circuit, a rectification filter circuit, a voltage-stabilization driving circuit, a current regulating circuit, a polar capacitor C5, a diode D3, and a triode overcurrent protection circuit, wherein the N pole of the diode D3 is connected with an RC pin of the control chip U2 while the P pole of the diode D3 passes through a resistor R7 and a resistor R8 and then is connected with a VREF pin of the control chip U2; and the triode overcurrent protection circuit is connected between an OUT pin of the control chip U2 and the current regulating circuit in series. The triode overcurrent protection type energy-saving power supply circuit has a super-strong withstand voltage capability, can output stable current, and can effectively ensure the stability of the luminance of a blue-light LED lamp. Compared with the existing power supply circuit, the energy consumption of the triode overcurrent protection type energy-saving power supply circuit is reduced by 55% or more.

The invention discloses a soft start current stabilization circuit, which is characterized in that it mainly consists of a transformer T, a diode rectifier U, a triode VT4, a capacitor C1, a capacitor C4, a capacitor C5, a capacitor C6, a resistor R6, a resistor R7, a resistor R8, a soft Start circuit and delay circuit. The present invention can realize the soft start of the electronic product, so that the output voltage of the present invention will rise to a given value at a slower speed through a start-up process after the power is turned on, so as to protect the electronic product from the impact of the surge when starting ; When starting, the present invention can also guarantee the optimal delay time of about 30 seconds; it is suitable for popularization and application.

The invention discloses an energy recovery and compensation device for an electric vehicle and belongs to the field of electronic devices for electric vehicles. According to the device, three high-frequency transformer compensation branches are respectively connected to three motor phase lines between an original motor of the electric vehicle and a controller; a primary coil of a high-frequency transformer is connected in series with each phase line; a capacitor is connected in parallel with the primary coil; a secondary coil of the high-frequency transformer is connected with a diode rectifier; a coupling transformer compensation branch is connected in parallel with the three motor phase lines so as to lead out three connecting lines, controls the on / off of the phase lines and a coupling transformer through a relay and is connected with the diode rectifier; and the output ends of four compensation branches are connected in parallel or in series with an original storage battery through a charging bus. According to the device, an original circuit structure of the electric vehicle is not required to be changed, and the device is easy and convenient to mount; and moreover, a regenerative brake momentary charge current of the motor can be recovered during brake and downhill, the energy is saved, and the traveled distance is approximately doubled.

The invention discloses an energy-saving power circuit for a diode withstand voltage-type cold-light LED. The energy-saving power circuit is characterized by mainly comprising a control chip U2, a triode VT2, a diode withstand voltage circuit, a current adjusting circuit, a polar capacitor C5, a diode D3, a rectifier and filter circuit and a voltage-stabilizing drive circuit, wherein a negative electrode of the polar capacitor C5 is connected with a base of the triode VT2 and a positive electrode sequentially passes through a resistor R6 and a resistor R5 and then is connected with a COMP pin of the control chip U2; an N pole of the diode D3 is connected with an RC pin of the control chip U2 and a P pole sequentially passes through a resistor R7 and a resistor R8 and then is connected with a VREF pin of the control chip U2; the rectifier and filter circuit is connected with a VCC pin of the control chip U2; and the voltage-stabilizing drive circuit is connected with a collector and an emitter of the triode VT2 separately. The energy-saving power circuit has relatively high withstand voltage capability; stable current can be output; and the stability of the brightness of a blue-light LED lamp is effectively ensured; and compared with an existing power circuit, the energy-saving power circuit has the advantage that the energy consumption is reduced by over 55%.

The embodiment of the invention discloses a pixel drive circuit, a display panel, a display device and a pixel driving method. The pixel drive circuit comprises a data writing control module, a first charging control module, a second charging control module, a first compensation control module, a second compensation control module, a first luminescence control module, a second luminescence control module, a storage module, a driving module and an organic luminescence element. The storage module is configured to capture the threshold voltage of the driving module and compensate the threshold voltage of the driving module to allow the current flowing through the organic luminescence element at the luminescence phase to have nothing to do with the threshold voltage of the driving module. According to the technical scheme of the embodiment provided by the invention, the problem can be solved that the display is bad caused by the shift of the threshold voltage of the pixel drive circuit and the display effect is improved.

The invention discloses a multi-circuit processing type automatic opening and closing control system for a bath heater. The multi-circuit processing type automatic opening and closing control system is characterized in that the control system mainly consists of a control chip U, a current foldback circuit, a base electrode driving circuit, a temperature controller, a triode VT2, a polar capacitor C5, a polar capacitor C4, a voltage-stabilizing diode D3, a transistor switch buffer circuit, and a current regulating circuit serially connected between an FB pin of the control chip U and the base electrode driving circuit. The control system can control the temperature of warming lamps of the bath heater, namely the control system can control the on and off of the working current of the bath heater, so that the control system can control the temperature of the bath heater. Moreover, the control system can inhibit instant high current of input current, so that the current keeps stable, the control system can output stable driving current, and the heating temperature stability of the bath heater is guaranteed.

The invention relates to a method for supplementing water to dilute a concentrated solution of salt lake brine, which comprises the following steps: (1) heating raw material water through a heating mechanism to obtain heated water; (2) filtering the heated water through a filtering mechanism to obtain filtered water; (3) enabling the filtered water to pass through a control mechanism and a plurality of dilution tanks to dilute concentrated return liquids from a plurality of electrodialysis units respectively; and (4) overflowing and discharging the final diluted liquid from the upper part of the last dilution tank. According to the method, the speed of discharging the concentrated liquid from the electrodialysis unit in an overflowing manner is remarkably increased, so that the yield of the diluted liquid is increased.

The invention discloses an adaptive address conversion method and controller applied to a high-bandwidth low-voltage system. The adaptive address conversion method comprises the following steps of: receiving a plurality of request commands, wherein a memory address corresponding to each request command comprises a library address; converting memory addresses corresponding to the request commands to make library addresses corresponding to at least a part of every two adjacent request commands different; and converting the memory addresses corresponding to the request commands by performing numeric conversion to reduce the change digits of the memory addresses corresponding to every two adjacent request commands.

The invention discloses a discrete bootstrap current amplification type energy-saving power supply for a luminescent LED. The energy-saving power supply is characterized by mainly consisting of a control chip U2, a discrete bootstrap current amplification circuit, a current detection circuit, a diode rectifier U1, a polar capacitor C1, a diode D3, a field-effect tube trigger circuit, a constant current starting circuit and a variable frequency driving circuit, wherein an N pole of the diode D3 is connected with a VFB pin of the control chip U2, and a P pole of the diode D3 is connected with a VCC pin of the control chip U2 after passing through a resistor R5 and a resistor R6 in sequence; the field-effect tube trigger circuit is connected with an OUT pin and a VREF pin of the control chip U2 respectively; the constant current starting circuit is serially connected between the VCC pin of the control chip U2 and the field-effect tube trigger circuit; and the variable frequency driving circuit is connected with the constant current starting current. The energy-saving power supply has relatively high voltage endurance capability and load capacity, stable current can be output, and the brightness stability of the luminescent LED is effectively guaranteed. The energy consumption of the energy-saving power supply is decreased by more than 55% compared with the energy consumption of an existing power supply circuit.

The invention relates to the technical field of adsorbent related gas adsorption and desorption, in particular to a liquid adsorbent testing method. A liquid adsorbent testing device comprises a microbalance, a suspension rod, an electromagnet, a testing cavity, a vent port I, a permanent magnet, a steel wire, a displacement sensor, an induction coil, a standard sample, a support I, a tray I, a bracket, a tray II, a support II, a connection tube, a sample cavity, a gas tube I, a gas tube II, a vent port II, a light source, a camera, a divider resistor, a direct-current power source, a feedbackcircuit, a computer and a displacement stage. By combination of the simple-structure feedback structure and the direct-current power source, stable current is provided for the electromagnet so as toreduce errors in an adsorbent weighing process and improve accuracy of results. By adoption of a special gas inlet structure, the shape of a single bubble in a liquid adsorbent can be observed and recorded, application to research on interaction between gas and the liquid adsorbent is realized, and the liquid adsorbent research can be realized according to a weighing method.

The invention discloses an amplifying and filtering type surge current limiting circuit based soft start-up current stabilization circuit which comprises a transformer T, a diode rectifier U, a triode VT4, a capacitor C1, a capacitor C4, a capacitor C5, a capacitor C6, a resistor R6, a resistor R7, a resistor R8, a soft start-up circuit, a surge current limiting circuit, an amplifying and filtering circuit and a delay circuit. The circuit of the invention can realize the soft start-up of an electronic product. When electrically connected, the voltage is gradually outputted at a relatively slow speed to reach a give amount so that the electronic product is free from the impact of surge during the start-up process. In start-up, the circuit of the invention can also ensure a best delay time of around 30 seconds. The circuit can be widely utilized.

The invention discloses a crasher which comprises a motor, a belt pulley and a feed port, wherein the motor is connected with the belt pulley through a belt, a crushing bin is arranged below the feed port, a discharge port is arranged obliquely above the right side of the crushing bin, the motor is positioned at the right side of the discharge port, a heavy hammer shaft is arranged at the center of the crushing bin, a plurality of heavy hammers are evenly distributed around the heavy hammer shaft, the front end of the heavy hammer shaft is connected with the belt pulley, the motor is a brushless motor, and a balance wheel is arranged at the opposite side of the belt pulley. The crasher disclosed by the invention has the advantages of stable working current, high efficiency, smoothness in working, simple structure, convenience in cleaning, durability, high working efficiency, safety and convenience in operation, and the like.

The invention discloses a soft start current stabilization circuit based on a surge current limiting circuit. The circuit is mainly formed by a transformer T, a diode rectifier U, a triode VT4, a capacitor C1, a capacitor C4, a capacitor C5, a capacitor C6, a resistor R6, a resistor R7, a resistor R8, a soft start circuit, a source constant current driving circuit, the surge current limiting circuit and a time-delay circuit. In the invention, soft start of an electronic product can be realized; after the power is turned on, an output voltage is slowly increased to a given value after a start process so as to protect the electronic product from a surge impact when being started. When the product is started, the circuit of the invention can be used to ensure optimal delay time of about 30 seconds. The circuit is suitable for popularization and utilization.