Abstract: The present teaching relates to a method/apparatus for a magnetic sensor. The apparatus of the magnetic sensor resides in a housing and includes an input port and an output port, both extending from the housing. The apparatus also includes an electrical circuit which comprises a magnetic field detecting circuit, configured to detect an external magnetic field and output a magnetic induction signal that is indicative of information related to the external magnetic field, an output control circuit coupled between the magnetic field detecting circuit and the output port, and a state control circuit coupled with the output control circuit and configured to determine whether a predetermined condition is satisfied and signal the same to the output control circuit.

Abstract: A magnetic sensor integrated circuit, a motor assembly and an application device are provided. The magnetic sensor integrated circuit includes a magnetic field detection circuit and an output control circuit. The magnetic field detection circuit is configured to detect a magnetic field of a rotor of a motor and output magnetic field detection information. The output control circuit includes a first switch and a second switch. The first switch and the output port are connected in a first current path. The second switch and the output port are connected in a second current path having a direction opposite to that of the first current path. The first switch and the second switch are selectively turned on based on the magnetic field detection information, so as to control an energizing mode of the motor.

Abstract: A motor driving circuit drives a motor. The motor driving circuit includes a controllable bidirectional alternate current switch, a sensor, a rotation direction control circuit and a switch control circuit. The controllable bidirectional alternate current switch is connected to the motor and an alternate current power supply. The sensor detects a magnetic pole position of a rotor. The rotation direction control circuit controls a current flowing direction through a power supply terminal and a ground terminal of the sensor responsive to rotation direction set of the motor, to determine a phase of a detection signal outputted at an output terminal of the sensor. The switch control circuit controls a switch state of the controllable bidirectional alternate current switch to determine a rotation direction of the motor responsive to the detection signal and a polarity of the alternate current power supply.

Abstract: The present teaching relates to a magnetic sensor that comprises a housing, an input port and an output port, both extending from the housing and the input port being connected to an external alternating current (AC) power supply, and an electrical circuit. The electrical circuit comprises an output control circuit coupled with the output port and configured to be responsive to a magnetic induction signal to control the magnetic sensor to operate in a state in which a load current flows through the output port when a predetermined condition is satisfied, and operate in another state when the predetermined condition is not satisfied. The operating frequency of the magnetic sensor is positively proportional to the frequency of the external AC power supply.

Abstract: A magnetic sensor integrated circuit, a motor component and an application apparatus are provided. The integrated circuit includes: an input port, an output port, a magnetic field detection circuit and an output control circuit. The magnetic field detection circuit detects an external magnetic field and outputs magnetic field detection information. The output control circuit enables, at least based on the magnetic field detection information, the integrated circuit to switch at least between a first state, in which a current flows from the output port to an outside of the integrated circuit, and a second state, in which a current flows from the outside of the integrated circuit to the output port.

Abstract: An integrated circuit, a motor component including the integrated circuit and an application device having the motor component are provided according to embodiments of the present disclosure. The integrated circuit includes a housing, an integrated circuit die arranged inside the housing and multiple pins extended out from the housing. The integrated circuit die has a conductive back plate and an electronic circuit arranged on the conductive back plate. The multiple pins include an input pin and an output pin, each of the multiple pins has a lead frame inside the housing. And the conductive back plate is fixed to the lead frame of at least one ungrounded pin of the multiple pins in a manner of electrical insulation, thereby avoiding an short circuit for the integrated circuit due to an electrical connection between the conductive back plate and the lead frame fixed to the conductive back plate.

Abstract: A magnetic sensor integrated circuit, a motor and an application apparatus. The magnetic sensor includes a magnetic sensor, a signal processing unit, an output control circuit and an output port. The magnetic sensor receives a constant current sense a magnetic polarity of an external magnetic field and output a differential signal. The signal processing unit amplifies the differential signal and eliminates an offset of the differential signal to obtain a magnetic field detection signal. The output control circuit control, at least based on the magnetic field detection signal, the magnetic sensor integrated circuit to operate in at least one a first state in which a current flows from the output port to the outside and a second state in which a current flows from the outside into the output port.

Abstract: A motor driving circuit drives a motor. The motor driving circuit comprises a controllable bidirectional alternate current switch, a detection circuit. The controllable bidirectional alternate current switch is connected in series to a winding of the motor between two terminals of an alternate current power supply. The detection circuit is configured to detect a magnetic pole position of a rotor of the motor and output a magnetic pole position signal. And a switch state of the controllable bidirectional alternate current switch is controlled to determine a rotation direction of the motor according to a control signal and polarity of the alternate power supply.

Abstract: A motor driving circuit and an application device are provided. In an embodiment, an AC switch is connected between first and second nodes. A rotational direction control circuit connects to the first and second nodes and is configured to selectively connect the first node to first terminal of an AC power supply through motor winding and connect the second node to second terminal of the AC power supply, or connect the first node to second terminal of AC power supply and connect the second node to first terminal of the AC power supply through the motor winding. A detecting circuit is configured to detect magnetic pole position of the rotor. A switch control circuit is configured to control the AC switch to be turned on or be turned off in a predetermined way based on magnetic pole position signal and potential difference between the first and second nodes.

Abstract: A power converting circuit for supplying power to an inductive load, includes an inductance, a switching circuit and an energy saving circuit. The inductance is charged when the switching circuit is conductive and discharges energy to the energy saving circuit and the inductive load when the switching circuit is nonconductive. The energy saving circuit discharges energy to the inductive load when the switching circuit is conductive.

Abstract: A power conversion circuit for supplying power to an inductive load, includes a switching circuit and an energy saving circuit. The inductive load is supplied with electrical power and the energy saving circuit is charged when the switching circuit is conductive, and the inductive load is disconnected from the electrical power supply and the energy stored in the energy saving circuit is discharged to the inductive load when the switching circuit is nonconductive.

Abstract: A control circuit for a DC motor, has: a first and second input ports for connection to a DC source; a H-bridge driving circuit, having first and second switches connected in series between the input ports, and third and fourth switches connected in series between the input ports, a first output port between the first and second switches and a second output port between the third and fourth switches, and a shunt circuit and/or a blocking circuit. The motor is connected between the first and second output ports. The shunt circuit is connected between the first second output ports and has a resistance that will decrease in response to BEMF generated by the motor. The blocking circuit is connected in series with the motor between the output ports and has a resistance that increases in response to BEMF generated by the motor.

Abstract: Provided is a multimedia transcoding method and a cloud multimedia transcoding system (CMTS) for performing the method, wherein the method includes receiving video data, generating video blocks by dividing the video data, and transcoding the video blocks, and the receiving, the generating, and the transcoding are performed by a transcoding module.

Abstract: A drive circuit for an electric motor connected in series with an AC power source between a first node and a second node. The drive circuit includes a controllable bidirectional AC switch, an AC-DC conversion circuit connected in parallel with the controllable bidirectional AC switch between the first node and the second node, a position sensor configured to detect a position of a rotor of the motor, and a switch control circuit configured to control the controllable bidirectional AC switch to be conductive or non-conductive in a predetermined way, based on the position of the rotor and a polarity of the AC power source.

Abstract: A drive circuit for an electric motor having a wound stator and a permanent magnet rotor, includes a controllable bidirectional AC switch connected in series with a stator winding between two terminals for connecting to an AC power supply. First and second position sensors detect the position of magnetic poles of the rotor. A voltage regulating circuit is connected between the two terminals and the controllable bidirectional AC switch and configured to supply power to the first sensor during the positive cycle and to the second position sensor during the negative cycle of the AC power supply such that the controllable bidirectional AC switch is switched between a conductive state and a non-conductive state in a preset manner, thus enabling the stator to rotate the rotor in only one predetermined direction during start-up.

Abstract: A step-down circuit has a switch connected in series between a direct current power supply and a load. A switch control circuit is configured to turn the switch off when the voltage across the load is higher than a predetermined first threshold and turn the switch on when the voltage across the load is lower than the first threshold. An energy storage unit is charged by the power supply when the switch is on and supply power to the load when the switch is off An overcurrent protection circuit turns the switch off when the input current of the switch is higher than a predetermined second threshold.

Abstract: A drive circuit for an electric motor, has a driving source unit, configured to generate a driving source signal and a driving unit, connected to the motor and configured to drive the motor according to the driving source signal. A sensing unit senses the actual speed of the motor. A control unit stops operation of the motor when the actual speed of the motor falls below a predetermined level. A timing unit counts a predetermined time period from the time the motor stops operation. The motor resumes operation at the end of the predetermined time period.

Abstract: Provided are a system and a method for configuring device sociality which constructs one or more networks through wired/wireless internet and configures device sociality for one or more devices included in one or more networks.

Abstract: Provided is a method of processing log data and a system for operating the method, in which the log data processing system may include a first storage module, a second storage module, a log collection module configured to collect log data generated by a task process associated with a customer, classify the log data into first log data and second log data based on a type of the log data, and transmit the first log data to the first storage module and the second log data to the second storage module, and a log graph generation module configured to generate a log data graph of at least one of data stored in the first storage module and data stored in the second storage module.

Abstract: Provided is a data federation system for a sociality storage service in cloud computing, the data federation system including an instance management unit to collect instance information from a cloud system for integrating cloud storage services provided to individuals, a service authentication unit to authenticate a state of the cloud storage services using the collected instance information, a storage synchronization unit to integrate cloud storages to collect data of the authenticated cloud storage services, and an index management unit to organize the collected data based on a state value of at least one of a file and a folder in the integrated cloud storage.