39results about How to "Guaranteed output stability" patented technology

The invention discloses an automobile electronic water pump controller with multiple interfaces and relates to an electronic water pump for an automobile. The automobile electronic water pump controller comprises an embedded microprocessor, a motor driver and a parameter detection circuit, wherein the embedded microprocessor is connected with an electric control unit (ECU) or bus of the automobile through a communication interface module and is used for receiving a rotating speed control signal transmitted from the ECU; the communication interface is one of pulse width modulation (PWM), LIN and controller area network (CAN); the input end of the motor driver is connected with the embedded microprocessor, and the output end of the motor driver is connected with the motor; the motor driver is used for driving the motor to work under control of the embedded microprocessor; the parameter detection circuit comprises at least one detection circuit for voltage, current, temperature and rotating speed signal; the signal output end of the parameter detection circuit is connected with the embedded microprocessor; and the parameter detection circuit is used for acquiring working parameters of the motor. The automobile electronic water pump controller is high in universality, the fault diagnosis requirements of the automobile electronic water pump can be met, and the reliability of an automobile cooling system is improved.

The invention provides a battery cover plate assembly, a preparation method of the battery cover plate assembly, a single battery and a battery pack. The battery cover plate assembly comprises cover plates, hollow rivets, an electrode terminal, sealing layers and insulating parts, wherein the sealing layers are arranged between the electrode terminal and the insulating parts; the sealing layers in a fused state can be fused with the insulating parts; and microcellular structures are distributed on the surfaces contacted with the sealing layers, of the electrode terminal. The battery cover plate assembly has the following advantages: the sealing layers are arranged between the electrode terminal and the insulating parts and the electrode terminal is pretreated, thus reducing the influence of deformation, especially shrinkage of polymer insulating parts due to various environmental factors, such as temperature and the like on sealing combination of the electrode terminal and the cover plate, improving the binding force of the inorganic metals and the organic polymers, not only improving the connection firmness of the electrode terminal and the cover plate, but also further enhancing the sealing performance of the cover plate assembly and meeting the development requirements of the current batteries. The invention provides the single battery with more stable performance and the battery pack.

The invention provides a battery cover plate assembly, a preparation method thereof, a single battery and a battery pack. The battery cover plate assembly comprises a cover plate, a hollow rivet, an electrode terminal, a sealing layer and an insulation part, wherein the sealing layer is arranged between the electrode terminal and the insulation part, the material of the sealing layer comprises polymer, the sealing layer and the insulation part are fused with each other; a microcellular structure is distributed on the contact surface of the electrode terminal and the sealing layer. According to the battery cover plate assembly, the electrode terminal by arranging the sealing layer between the electrode terminal and the insulation part, the possibility of the deformation of the polymer insulation part caused by the various environment factors such as temperature can be reduced, especially, the influence on the sealing combination of the electrode terminal and the cover plate can be lowered, meanwhile, the binding force of organic metal and the cover plate assembly can be further enhanced, and the development demand on the existing battery can be met. The invention provides a single battery and a battery pack which have stable performance.

A touch scanning circuit and a driving method thereof, a touch driving circuit and a display panel. The touch scanning circuit includes: an input sub-circuit, a first control sub-circuit, a second control sub-circuit, a shift output sub-circuit and a touch output sub-circuit. The input sub-circuit is configured to control a potential of a first node; the first control sub-circuit is configured to control connection and disconnection between the first node and a third node; the second control sub-circuit is configured to control a potential of a second node; the shift output sub-circuit is configured to control a potential of a shift output end according to the third node and the second node; and the touch output sub-circuit is configured to control a signal outputted from a touch output end according to the second node, the shift output end and the first clock signal end.

The invention discloses an angular position sensor based on a photoelectric detector, comprising four fan-shaped photoelectric detectors symmetrical around the same axis, which are used for receiving light to generate an induced current; an LD laser diode, which is located on the axis of the four fan-shaped photoelectric detectors It is used to emit laser light to the light-receiving surface of the fan-shaped photodetector; the temperature sensor is used to measure the temperature of the fan-shaped photodetector; The light-receiving surface is blocked; the current calculation module is used to calculate the difference between the two output induced current values; the temperature compensation module is used to perform temperature compensation on the output value of the fan-shaped photodetector; the angle position calculation module is used to compensate according to the The angular position of the rotating shaft to be measured is calculated from the difference of the induced current. The present invention can improve the deficiencies of the prior art, and does not require repeated manual calibration.