16 results about "Interface circuits" patented technology

A modular motor controller family comprises a housing. Solid state switches are selected from one of plural switch sizes for controlling a desired voltage and current range. The switches are mounted in the housing for connection between an AC line and motor terminals for controlling application of AC power to the motor. A logic circuit board is mounted in the housing including logic circuitry for commanding operation of the solid state switches independent of the selected switch size. An interface circuit board selected from one of plural configurations is mounted in the housing and includes interface circuitry connected between the logic circuitry and the solid state switches. The interface circuitry is selected to interface with the selected switch size according to the desired voltage and current range.

This invention provides a fault indication technology used to Ethernet optical fiber transceiver. It includes following step: adds the control circuit in the transceiver, the control circuit is used to test and control the working state of Ethernet electrical interface and optical interface. To implement the fault indication, the control circuit connects to the interface circuit of Ethernet through the LINK signal, through connecting SD and TX-DIS with the optical interface circuit of Ethernet, makes real time test to the state of receiving the optical signal in the optical fiber interface and the state of network connection in the RJ45 interface, and reports the working state of the link according to the result of testing. The control circuit implements the report of the fault indication to the remote equipment through controlling the working state of the optical fiber sending circuit.

An integrated circuit device includes a scan driver block, a high-speed interface circuit block, and a scan driver pad arrangement region in which pads electrically connecting scan output lines of the scan driver block and scan lines are disposed. The high-speed interface circuit block includes a physical layer circuit that receives data using differential signals, and a link controller that performs a link layer process. The scan output lines of the scan driver block are provided from the scan driver block to the scan driver pad arrangement region to pass over the link controller while avoiding the physical layer circuit. A common voltage line connecting first and second common voltage pads is provided from the first common voltage pad to the second common voltage pad along a first direction, the common voltage line being provided in a second direction with respect to the physical layer circuit along the first direction in an arrangement region of the physical layer circuit.

A wireless device of the present invention has a wireless access device and a wireless stylus. The wireless stylus has a cursor control unit, an identification code storage unit, a mouse interface circuit, and a radio frequency transmitter. The cursor control unit is used to generate a movement signal, and the identification code storage unit is used to store temporarily identification code information. The mouse interface circuit is electrically connected with the cursor control unit and the identification code storage unit. Besides, the mouse interface circuit is used to receive the movement signal and the identification code information to output a cursor control signal and an identification code signal, by signal information processing. The radio frequency transmitter is electrically connected to the mouse interface circuit and used to transmit the cursor control signal and the identification code signal to the wireless access device by wireless communication.

The invention relates to a Tianji horse racing video-game machine and a Tianji horse racing poker, which belongs to intelligence toy and teach aid, and electronic game and network game equipment. Each set of the Tianji horse racing poker consists of three sets of poker cards with different background surfaces, and each set of the poker cards consists of 58 cards including a 0(Z) card. The external structure of the Tianji horse racing video-game machine consists of a shell, an LED or OLED display screen, a trackball or an idle wheel, a key, a loudspeaker, a sound pick-up device, a camera, a USB interface and the like; an inside circuit of the video-game machine consists of an audio unit, a power supply circuit, a video unit, a data information processing unit, a keyboard circuit, a USB interface, the trackball or an idle wheel circuit and the like, wherein the data information processing unit consists of an audio interface circuit, a crystal oscillating circuit, a reset circuit, a video interface circuit, a program memory, a central processor, data memory, a keyboard interface circuit, the trolley ball or an idle wheel interface circuit and the like. The Tiangji horse racing poker and the video-game machine are a benefit teaching aid and an audio-visual terminal.

A C/V integrated capacitive humidity sensor interface circuit is suitable for the field of Internet of Things. Humidity sensor interface circuit is composed of folded cascode operational amplifier, reference current source, bias circuit and compensation circuit. The first stage adopts a folded cascode structure, which provides higher gain; the second stage adopts a common source structure, which provides a higher output swing. The bias circuit adopts a self-starting bootstrap reference current source, thereby reducing the influence of the power supply voltage on the charging and discharging of the capacitor. The circuit has high sensitivity, fast dynamic response, good stability, simple structure, easy digitization, and good anti-interference and reliability.

The present invention provides a reactive compensation circuit based on the improved Buck-boost alternating current chopper, an energy management system used for a power station transformer vibration energy collector is formed by a multiple voltage rectification circuit, a vibration-type energy collector and the power management circuit of the vibration-type energy collector. The energy management system used for the power station transformer vibration energy collector overcomes the problems of load matching and circuit loss in an interface circuit of a piezoelectric energy collector, optimizes that the piezoelectric energy collector circuit fully collects energy output by an energy convertor and improves the energy storage efficiency.

The invention discloses an STM32-based embedded multi-axis motion control system, which comprises an MCU main board in multi-bus communication, a motion controller, a switch quantity interface circuit, a CAN interface circuit, an RS232 interface circuit, an RS485 interface circuit, a network interface circuit and an STM32F407 chip, wherein the motion controller, the switch quantity interface circuit, the CAN interface circuit, the RS232 interface circuit, the RS485 interface circuit, the network interface circuit and the STM32F407 chip are arranged on the MCU main board in a concentrated mode;the motion controller, the switch quantity interface circuit, the CAN interface circuit, the RS232 interface circuit, the RS485 interface circuit, the network interface circuit and the STM32F407 chipare connected; and the STM32F407 chip is internally provide with a u/ COS III real-time multitask management system. The control system of the invention can realize six-axis motion control, smooth and fast motion transition can be realized, the high-performance CPU chip is adopted, and the compatibility is good.

The invention discloses a black box fire monitoring and alarming system for a ship. The black box fire monitoring and alarming system for the ship comprises multiple fire monitoring and alarming devices which are arranged on the ship, a black box and a fire monitoring and controlling computer, wherein the black box and the fire monitoring and controlling computer are arranged in a wheelhouse, each fire monitoring and alarming device comprises a fire monitoring controller module, a first CAN bus communication circuit module, a Flash memorizer module, a smoke detector, a heat detector and a manually-operated call button, a main control board, a power supply, a data storage unit and a communication unit are integrated in the black box, a central processing unit, a chipset, a CAN bus interface circuit module, an RJ45 interface circuit module and an internal storage are arranged on the main control board, and the communication unit comprises a second CAN bus communication circuit module, a short message gateway and a network interface card. The black box fire monitoring and alarming system for the ship is simple in structure, reasonable in design and high in degree of intelligentization, real-time detection is achieved, real-time transmission is achieved, rapid alarming is achieved, the occurrence rate of fire is decreased, the life safety of people is guaranteed, the use effect is good, and the system can be popularized and used easily.

The invention discloses an automatic processing practical training system based on a single-chip microcomputer, and the system comprises a main command signal input circuit, an input interface circuit, an input level conversion circuit, the single-chip microcomputer, an output level conversion circuit, an output interface circuit and a display circuit, wherein the main command signal input circuit, the input interface circuit, the input level conversion circuit, the single-chip microcomputer, the output level conversion circuit, the output interface circuit and the display circuit are sequentially in circuit connection. The main command signal input circuit carries out the data communication with the single-chip microcomputer, the input interface circuit is connected with a processing platform detection circuit, and the output interface circuit is connected with a processing drive circuit. The single-chip microcomputer receives a main command signal of the main command signal input circuit and the processing state information of the processing platform detection circuit, sends a corresponding control signal according to the requirements of the control technology, and drives the processing drive circuit to complete the processing of the workpiece. The system consists of an independent processing control system, the processing platform detection circuit and the processing drive circuit, is good in compatibility, can be connected with the input/output circuits at different control points to form a single-chip microcomputer practical training teaching system, provides a brand-new practical training equipment for the teaching of the single-chip microcomputer, is reliable, and is low in cost.