35results about How to "Simple external connection" patented technology

An integrated module frame and racking system for a solar panel is disclosed. The solar panel comprises a plurality of solar modules and a plurality of splices for coupling the plurality of solar modules together. The plurality of splices provide a way to make the connected modules mechanically rigid both during transport to the roof and after mounting for the lifetime of the system, provide wiring connections between modules, provide an electrical grounding path for the modules, provide a way to add modules to the panel, and provide a way to remove or change a defective module. Connector mount assemblies are provided on the sides of the modules to simplify the electrical assembly of modules when the modules are connected together with splices and to simplify the final connection of external wiring to the module.

A high-frequency amplifier circuit includes an amplifying transistor and a bias circuit directly connected to said amplifying transistor. The bias circuit includes a bias transistor having a control terminal and an inductor coupled to the control terminal, and the bias transistor also has an output terminal directly connected to the amplifying transistor. A resistor is connected in series with the inductor, and the series-connected components are connected in the circuit between the control terminal and a power supply terminal. By providing an inductor in the amplifier in this manner, loading effects on the amplifying transistor at high frequencies is substantially reduced.

A horizontal driving circuit includes: a shift register for performing shift operation in synchronism with a first clock signal HCK and sequentially outputting a shift pulse from each of shift stages thereof; a first switch group for extracting a second clock signal DCK in response to the shift pulse sequentially outputted from the shift register; and a second switch group for sequentially sampling an input video signal in response to the second clock signal DCK extracted by each switch of the first switch group, and supplying the sampled video signal to each of signal lines. An external clock generating circuit is disposed external to a panel to externally supply the horizontal driving circuit with the first clock signal HCK, and an internal clock generating circuit is disposed within the panel to internally supply the horizontal driving circuit with the second clock signal DCK.

The invention provides a testing device for a memory chip in a hybrid circuit. capable of achieving fault positioning and diagnosis at the same time; The device comprises a built-in self-test circuitand a bus multiplexing circuit. The built-in self-test circuit and the bus multiplexing circuit are arranged on the main control protocol chip; The built-in self-test circuit is connected with a selection signal port of the bus multiplexing circuit. The built-in self-test circuit is connected with the bus multiplexing circuit through the test mode control bus, the test mode address bus and the test mode data bus. The main control protocol chip also comprises a functional memory controller; Wherein a control bus of the main control protocol chip is connected with a control port of the memory chip, a data bus of the main control protocol chip is connected with a data port of the memory chip, and an address bus of the main control protocol chip is connected with an address port of the memorychip; An output data bus of the main control protocol chip is connected with an output data port of the memory chip; And the built-in self-test circuit and the functional memory controller read data on the memory chip through the output data bus.

An electrical machine, in particular a generator, preferably a claw pole generator, having a contact element for electrically connecting electrical components, which is made up of a generally arc-shaped, electrically non-conductive substrate having arc end areas, including electrical conductors for connecting the components. At least one of the electrical conductors is designed as an external connection conductor, which runs outside the substrate from one arc end area to the other arc end area.

The invention discloses a rock debris flow measuring device and method. The rock debris flow measuring device comprises a weighing and sand pouring assembly outer framework and a control box which areconnected together. A weighing sensor is arranged at each of the bottoms of the two sides of the weighing and sand pouring assembly outer framework. Bearing support installation plates are installedon the weighing sensors, bearing supports are installed on the bearing support installation plates, and bearings are installed in bearing installation holes in the bearing supports in an interferencefit mode. Check blocks are installed on the inner sides of the bearing supports, air cylinder installation frames are installed on the outer sides of the bearing supports, and rotary air cylinders areinstalled in the air cylinder installation frames. According to the rock debris flow measuring device, wireless communication and battery power supply modes are adopted, external connection of the measuring device is greatly simplified, the rock debris flow measuring device can work only by being externally connected with one power gas pipeline, and field installation is facilitated; and the sandpouring and resetting are pneumatically driven, so that compared with motor driving, the weight of the measuring device is greatly reduced, and on-site carrying and mounting are facilitated. The rotary air cylinders directly drive a sand receiving disc to pour sand and reset, and the driving mode is simple and reliable.

The invention belongs to the field of avionics, and proposes a method for testing a transmission function of an ultrashort radio station. The method comprises the steps that an audio signal transmission unit (4) enables an analog voice signal from an audio signal generator to be filtered and amplified and then transmitted to a signal processing unit (3); a 429 data transmission and control / display unit (2) generates working frequency information, and the working frequency information is compared with the working frequency information of the ultrashort radio station of an ultrashort radio station connector (1); the ultrashort radio station connector (1) selects working frequency of the ultrashort radio station, wherein the working frequency is consistent with the working frequency generated by the 429 data transmission and control / display unit (2), and the working frequency is transmitted to the signal processing unit (3); the signal processing unit (3) modulates the selected working frequency of the ultrashort radio station through employing the analog voice signal, and forming a carrier radio frequency signal with audio information; and the signal processing unit (3) enables the carrier radio frequency signal with audio information to be transmitted to a comprehensive tester for interpretation through a coaxial load.

The present invention belongs to the technical field of aircraft testing. The horizon sensor tester is characterized by comprising a first single-pole single-throw switch S1, a second single-pole single-throw switch S2, a first fuse F1, a second fuse F2, a first ammeter A1, a second ammeter A2, and testing holes Va, Vb, Px, Py, Pz, Rx, Ry and Rz. According to the present invention, with the horizon sensor tester, the horizon sensor can be subjected to power consumption check, warning flag retracting time check, indication precision check, synchronizer output check, directivity check, correction speed check, correction incisal angle check and rotor stop time check so as to completely detect various performance indexes of the product.

The invention belongs to the technical field of avionics tests, and especially relates to a vertical gyro tester. The vertical gyro tester is composed of a first single-pole single-throw switch (S1), a disconnecting switch (S2), a quick switch (S3), a first single-pole double-throw switch (S4), a second single-pole double-throw switch (S5), a third single-pole double-throw switch (S6), a fourth single-pole double-throw switch (S7), a fuse radar pitch lower end output terminal F, a first ampere meter (A1), a second ampere meter (A2), a voltage meter (V), and test holes (Rx, Ry, Rz, Px, Py, Pz, Rh, Rc, Ph, and Pc). When a worker uses the provided vertical gyro tester to detect a vertical gyro, the external connection is simple, and the operation is convenient. On one hand, the vertical gyro tester can test the overall performances of a vertical gyro, thus the disqualified vertical gyro will not be applied to an airplane, and the efficiency and quality of airplane assembly are both improved; on the other hand, the fault points on a disqualified finished product can be rapidly found out by the vertical gyro tester, and a worker can quickly find and repair the fault points therefore.

The invention belongs to the technical field of aircraft electrical testing, and particularly relates to a high and low torque pressure switch tester. The switch tester comprises single-pole double-throw switches (S1) and (S2), indication lamps (L1) and (L2), a fuse (F) and a voltmeter. A DC source is connected with the single-pole double-throw switch (S1) via the fuse (F), one end of the single-pole double-throw switch (S1) is connected with the single-pole double-throw switch (S2), the other end of the single-pole double-throw switch (S1) is connected with the voltmeter, one end of the single-pole double-throw switch (S2) is connected with the indication lamp (L1), the other end of the single-pole double-throw switch (S2) is connected with the indication lamp (L2), and the voltmeter, the indication lamp (L1) and the indication lamp (L2) are connected with the cathode end of the source. On one hand, the tester can perform comprehensive performance testing on a high and low torque pressure switch, a fault product is prevented from being directly installed, and the efficiency and quality of an aircraft assembly are improved; and on the other hand, the test process is simplified, and the working efficiency is improved.

The invention relates to a phototherapy device flexible connector and a phototherapy device. The flexible connector comprises circuit boards and insulating bodies; each circuit board is an FPC, and each insulating body is a flexible insulating body; the FPCs are embedded into the flexible insulating bodies to form the flexible connector of an integrated structure; electric connecting pieces are formed at the tail ends of the two sides of each FPC, extend out of the two sides of the corresponding flexible insulating body, and are electrically connected with the circuit boards of two adjacent irradiation modules in a plurality of irradiation modules of the phototherapy device respectively. The flexible connector is connected to the side surfaces of the irradiation modules and located betweenthe two irradiation modules to form a flexible attaching phototherapy device which can be correspondingly expanded according to different phototherapy areas and / or shapes and / or dosages required by treatment.

The invention relates to detection equipment for a laser inertial combination navigation component. The detection equipment comprises a detection adapter (3), an automatic tester (4), a data acquisition unit (5) and a main control computer simulator (6), wherein the detection adapter (3) is used for signal regulation and line adaptation, and supplies electricity for the automatic tester (4), the data acquisition unit (5) and the main control computer simulator (6), the automatic tester (4) performs automatic detection on a laser inertial combination navigation component (2), the data acquisition unit (5) collects various signals output by the laser inertial combination navigation component (2) and transmits to the main control computer simulator (6), and the main control computer simulator (6) is used for judging whether the signals transmitted by the data acquisition unit (5) are correct and displays the signals.

The invention belongs to the field of avionics, and provides an ultrashort-wave radio station receiving function test method. The ultrashort-wave radio station receiving function test method comprises the steps of setting the working frequency of an ultrashort-wave radio station connector (1) by a 429 data transmission and control / display unit (2), making the ultrashort-wave radio station connector (1) work in the set working frequency; transmitting a modulating RF signal to the ultrashort-wave radio station connector (1) by a comprehensive tester in the set working frequency; demodulating the modulating RF signal by the ultrashort-wave radio station connector (1), and transmitting a demodulated signal to an audio signal transmission unit (4) through a signal processing unit (3); performing demodulation amplification identification on the demodulated signal by the audio signal transmission unit (4), obtaining an audio signal, and outputting the audio signal to audio signal analyzing / monitoring equipment.

The invention belongs to the field of aircraft equipment test, and particularly relates to a radio audio test device. Fault analysis requires to be performed on all the related components after the fault occurs in the radio audio electrification process performed by an assembly shop, the operation mode is complex and long in time consumption and the assembly progress is severely influenced. The radio audio test device comprises an audio processing unit and a DC voltage stabilized power supply, an audio voltmeter, an audio control panel and a load earphone which are connected with the audio processing unit. The radio audio test device is applied to the electrification inspection work before system assembly so that detection of the components can be rapidly and accurately completed, the detailed detection data can be provided for fault judgment, the professionals can be assisted to perform rapid and accurate error judgment to eliminate the field fault, and the labor productivity can be enhanced, the assembling period can be shortened and the production progress can be guaranteed.

The invention belongs to a brushless DC (Direct Current) motor driver power inverter system, and particularly discloses a half-H bridge power inverter system, which comprises multiple bridge arm circuits connected in parallel. Each bridge arm circuit is composed of multiple power circuits connected in parallel; each power circuit is composed of a field effect tube, a switching speed control circuit and a grid control clamping circuit; a control signal output end of a motor driver is communicated with an input end of each switching speed control circuit; the output end of each switching speed control circuit is respectively communicated with an input end of one corresponding grid control clamping circuit and a grid of one corresponding field effect tube; the drain electrodes D of the field effect tubes in the same bridge arm circuit are communicated; the source electrodes S of the field effect tubes in the same bridge arm circuit are communicated; the drain electrodes D and the source electrodes S of the field effect tubes in two adjacent bridge arm circuits are communicated. The half-H bridge power inverter system is high in power, small in volume, high in reliability and good in electromagnetic compatibility, and can realize precise control and continuous as well as reliable operation of the brushless DC motor.

A method for detecting a fuel quantity sensing annuciator includes steps: step 1, the fuel quantity sensing annuciator 5 inputs fuel quantity sensing signals into a conversion circuit 3; step 2, the conversion circuit 3 converts the fuel quantity sensing signals into voltage signals; step 3, the conversion circuit 3 sends the voltage signals to a panel meter 4, and the panel meter 4 displays a capacitance numerical value according to the acquired voltage signals.

The invention provides a tester for detecting the accuracy of a total temperature indicator. The tester comprises a power supply, potentiometers (102) and voltmeters (103). The potentiometers (102) correspond respectively to interfaces (104) of a total temperature indicator, the voltage of each potentiometer (102) is detected by the voltmeter (103), the voltage is adjusted to a theoretical voltage value of the total temperature indicator, and the potentiometers (102) are connected to corresponding cable plugs of the total temperature indicator (2) to obtain test values. Further provided is a method for detecting the accuracy of the total temperature indicator, and the method comprises the steps of A, converting the voltage of the power supply to 5V and accessing the tester (1) according to claim 1; B, testing the voltage of each potentiometer, and adjusting the voltage to theoretical voltage value of the total temperature indicator; and C, connecting each of the potentiometers (102) of the tester (1) to the corresponding interface of the total temperature indicator (2), and obtaining experimental results.

The invention discloses a digital multi-beam array two-level data distribution controller. For condition such as data distribution injection, equipment control and business processing of relatively large scale array equipment, architecture composed of top layer data distribution injection controllers and bottom layer data distribution injection controllers is provided. The method is mainly designed for a data distribution injection mode. Through adoption of the architecture composed of two-level data distribution injection controllers, data injection and control of the array equipment are realized, and working stability and reliability of the data distribution injection controller are greatly improved; and through adoption of a high speed serial drive module, a data transmission bit errorrate can be greatly reduced, and a scale of the array equipment can be controlled and expanded according to a practical requirement.

The invention relates to a rate gyro tester, which comprises a single-pole single-throw switch (S1), a single-pole double-throw switch (S2), a single-pole double-throw switch (S3), a fuse (F1), an ammeter (A1), a positive testing hole (FLAG+), a negative testing hole (FLAG-), a positive output testing hole (OUTPUT+), a negative output testing hole (OUTPUT-), a first resistor (R1), a second resistor (R2), a third resistor (R3) and a fourth resistor (R4), wherein the first single-pole single-throw switch (S1) controls a power supply and is connected to the fuse (F1) and the ammeter (A1) in series, the middle position of the second single-pole double-throw switch (S2) is connected to the positive testing hole (FLAG+), the double throw terminals of the second single-pole double-throw switch (S2) are respectively corresponding to the first resistor (R1) and the second resistor (R2), the first resistor (R1) and the second resistor (R2) are connected to the negative testing hole (FLAG-), the middle position of the third single-pole double-throw switch (S3) is connected to the positive output testing hole (OUTPUT+), the double throw terminals of the third single-pole double-throw switch (S3) are respectively corresponding to the third resistor (R3) and the fourth resistor (R4), and the third resistor (R3) and the fourth resistor (R4) are connected to the negative output testing hole (OUTPUT-).

The present invention relates to a method of forming inductive elements, such as inductors, chokes and transformers used as an integral part of the manufacture of PCBs or FLEXs, preferably from ferromagnetic materials. In a preferred embodiment, holes (56, 58) are formed through the ferromagnetic substrate (50) and plated with a conductive material. The placement of these holes and subsequent design will form the inductive element in the plane of the medium in which the device is formed; the substrate (50) for the magnetic core (90). By employing this approach, the inductive element can be minimized to a physical size compatible with the demands of modern surface mount technology (SMT) for integrated circuits (ICs). This process also allows these components to be fabricated using mass production techniques, thereby avoiding the need to manipulate individual devices during the fabrication process. In another preferred embodiment, a series of thin, concentric high permeability rings (315) are etched on the substrate (330) to provide high permeability transformers and inductors with minimal eddy current effects.