A magnetic sensor integrated circuit, a motor assembly and an application device are provided. The integrated circuit includes a housing, a semiconductor substrate, at least one input port and an output port, and an electronic circuit arranged on the semiconductor substrate. The electronic circuit includes a rectifying circuit, a magnetic field detection circuit configured to detect an external magnetic field and output magnetic field detection information, and an output control circuit connected to the rectifying circuit, and configured to control, at least based on the magnetic field detection information, the integrated circuit to operate in at least one of a first state in which a load current flows from the output port to an outside of the integrated circuit and a second state in which a load current flows from the outside of the integrated circuit to the output port. The load current flows through the rectifying circuit.

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.

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.

A power supply apparatus for providing electrical power to a power consuming device or a power conversion device from at least one of a first AC power source and a second AC power source. The power supply apparatus comprises controllable rectifier devices associated with each of the first and second AC power sources. The controllable rectifier devices are controllable to simultaneously rectify and control the power provided by the first and second AC power sources.

A power supply apparatus for providing electrical power to a power consuming device or a power conversion device from at least one of a first AC power source and a second AC power source. The power supply apparatus comprises controllable rectifier devices associated with each of the first and second AC power sources. The controllable rectifier devices are controllable to simultaneously rectify and control the power provided by the first and second AC power sources.

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.

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.

A system and method for controlling a speed of a permanent magnet AC motor (38) based on a delay angle of a triac-controlled AC voltage signal (66) from a triac (34). A simulated load (54) connected to the triac (34) enables a load current and creates the signal (66). A first detector (48) detects a zero-crossing point of the AC voltage signal, and a second detector (50) detects a subsequent turn-on instance of the triac (34). A speed command generator (52) measures an interval between the zero-crossing point and the subsequent turn-on instance, and converts the delay angle to a speed command for controlling the speed of the motor (38). The simulated load (54) may include resistors (70) having a resistance which causes the load current to be below a holding current rating of the triac (34), thereby causing the triac (34) to turn off after the interval has been measured.

The present teaching relates to a magnetic sensor residing in a housing. The magnetic sensor includes an input port and an output port, both extending from the housing, wherein the input port is to be connected to an external alternating current (AC) power supply. The magnetic sensor also includes an electric circuit which comprises an output control circuit coupled with the output port and configured to be at least responsive to a magnetic induction signal and the external AC power supply to control the magnetic sensor to operate in a state in which a load current flows through the output port. The magnetic induction signal is indicative of at least one characteristic of an external magnetic field detected by the electrical circuit and the operating frequency of the magnetic sensor is positively proportional to the frequency of the external AC power supply.

The present teaching relates to a magnetic sensor residing in a housing. The magnetic sensor includes an input port and an output port, both extending from the housing, wherein the input port is to be connected to an external alternating current (AC) power supply. The magnetic sensor also includes an electric circuit which comprises an output control circuit coupled with the output port and configured to be at least responsive to a magnetic induction signal and the external AC power supply to control the magnetic sensor to operate in a state in which a load current flows through the output port. The magnetic induction signal is indicative of at least one characteristic of an external magnetic field detected by the electrical circuit and the operating frequency of the magnetic sensor is positively proportional to the frequency of the external AC power supply.