Abstract: A RC oscillator comprises a resistor unit. The resistor unit can comprise at least one set of compensation resistor. Each set of compensation resistor comprises a positive temperature coefficient resistor and a negative temperature coefficient resistor coupled in series with the positive temperature coefficient resistor.

Abstract: A motor application apparatus is provided. The apparatus includes a motor, a cooling device, a temperature sensor to detect a temperature of the motor, a microcontroller configured to output a controlling signal to control rotation of the motor and acquire a supply current and a rotation speed of the motor in real time. When the temperature of the motor is higher than a predetermined value or the microcontroller determines that the motor is in a high temperature operation state according to the current and the rotation speed, the microcontroller outputs a protection signal to start the cooling device.

Abstract: A magnetic core for an electric motor has a ring-shaped yoke, teeth extending outwardly from the yoke, and a tooth tip extending from a distal end of each tooth. The core is formed from curved or coils strip laminations having teeth arranged in tooth groups. Each group has four tooth types arranged sequentially. Each tooth has left and right half tooth tips. The length of the half tooth tips vary according to tooth type. When assembled, first type tooth overlap with third type teeth and second type teeth overlap with fourth type teeth, whereby the opening of the winding slot is narrowed compared to laminations having all identical teeth.

Abstract: A motor includes a stator core, a winding bracket mounted around the stator core, a winding wound around the winding bracket, and a rotor cooperating with stator core. The winding bracket comprises a first bracket and a second bracket arranged in parallel with each other. The motor further includes a first connecting terminal and a second connecting terminal for supplying power to the winding from an external power source, and the first connecting terminal and the second connecting terminal are both mounted on the second bracket.

Abstract: The present teaching relates to a magnetic sensor comprising an input port to be connected to an external power supply, a magnetic field detecting circuit configured to generate a magnet detection signal, an output control circuit configured to control operation of the magnetic sensor in response to the magnet detection signal, and an output port. The magnetic field detecting circuit includes a magnetic sensing element configured to detect an external magnetic field and output a detection signal, a signal processing element configured to amplify the detection signal and removing interference from the detection signal to generate processed detection signal, and an analog-digital conversion element configured to convert the processed detection signal into a magnet detection signal, and the output control circuit is configured to control the magnetic sensor to operate in at least one of a first state and a second state responsive to at least the magnet detection signal.

Abstract: A PMDC motor has a housing, a stator magnet disposed in an interior of the housing, and a rotor core disposed within the stator magnet. A ratio of an outer diameter of the rotor core to the outer diameter of the housing is from 0.60 to 0.67. The noise of the motor during operation is reduced by increasing the thickness of the stator magnet, reducing the outer diameter of the rotor core, reducing the air gap between the magnet and the rotor core and reducing the rotational inertia of the rotor core. The motor is particularly suited for use in vehicle HVAC systems where low noise is an important requirement.

Abstract: A single phase permanent magnet motor includes a stator. The stator includes a stator core and windings. The stator core includes a ring portion, tooth bodies extending radially from the ring portion, and a pole shoe extending from a distal end to two circumferential sides of each tooth body. Each pole shoe defines a positioning slot. A center of each positioning slot is offset from a center of symmetry of one adjacent tooth body so that a torque fluctuation of an output torque of the single phase permanent magnet motor during operation is less than 50%. As a result, the motor vibration and noise are small.

Abstract: A rolling shutter driving device includes a motor, a locking assembly and a gearbox. The motor includes a stator and a rotor. The rotor includes a rotary shaft connected to the gearbox. The rotary shaft drives through the gearbox a rolling shutter to extend or retract. The locking assembly includes a brake pad slidingly fitted on the rotary shaft and a rotary member fixedly mounted to the rotary shaft. The brake pad is circumferentially fixed relative to the stator. The brake pad is slidable relative to the rotary shaft so as to be selectively engaged with the rotary member to lock the rotary shaft and hence hold the load in position, or disengaged from the rotary member to unlock the rotary shaft.

Abstract: A magnetic sensor integrated circuit, a motor and an application apparatus are provided. The magnetic sensor integrated circuit includes an input port, a magnetic sensor, and a signal processing unit. The input port is electrically coupled to an external power source. The magnetic sensor senses a polarity of an external magnetic field and outputting a detection signal. The signal processing unit includes a switched capacitor filter unit to sample and filter the detection signal; the signal processing unit eliminating an offset of the detection signal.

Abstract: An engine, an engine starter and its housing assembly are provided. The housing assembly includes a gear mounting portion for mounting a driving gear and a switch mounting portion for mounting a solenoid switch. The switch mounting portion comprises a connecting portion and a cover body. The connecting portion is connected with the gear mounting portion and comprises a through structure for mounting the solenoid switch, the cover body covers a top end of the through structure. A wall of the connecting portion corresponding to the gear mounting portion defines an opening for mounting a shifting fork, which is in communication with the through structure.

Abstract: A single phase motor includes a rotor including magnetic poles and a stator comprising a stator core and a winding wound on the stator core. The stator core includes a plurality of stator teeth each including a tooth body and a tooth end formed at an end of the tooth body, the tooth end comprising first and second arcuate regions facing the rotor. When the winding is not energized, a first magnetic coupling between said first arcuate region and a selected magnetic pole of said rotor is greater than a second magnetic coupling between said second arcuate region and the selected magnetic pole, said first arcuate region being offset from a selected tooth body in such a way as to enable movement of said rotor to initiate in either of two opposite directions relative to said selected tooth body upon energizing the winding.

Abstract: A bio-sensor circuit for detecting characteristics of a substance placed thereupon, the bio-sensor circuit has: a printed circuit having at least one electrically conductive contact sensor on a surface of the printed circuit, the electrically conductive contact sensor including a biochemical agent; and an electrically insulative coating affixed to the surface of the printed circuit, the electrically insulative coating having a well associated with the electrically conductive contact sensor, thereby leaving the electrically conductive contact sensor exposed through the electrically insulative coating, the electrically insulative coating being a resinous compound formed by injection molding. An electrochemical change resulting from the interaction of the substance to be characterized and the biochemical agent creates a detectable electrical potential at the electrically conductive contact sensor. A system and method of creating such a circuit via injection molding is also provided.

Abstract: A driving device includes a motor and a gearbox. The gearbox includes a first sun gear, first planetary gears surrounding and engaged with the first sun gear, and a first internal gear ring surrounding and engaged with the first planetary gears. The first sun gear is coaxially fixed to a rotary shaft of the motor. Meshing planes of the first sun gear and the first planetary gears are slanted with respect to the rotary shaft. Each of the first planetary gears is subjected to an externally-exerted first force and exerts a transverse component of force toward the rotary shaft on the first sun gear. The motor structure of the driving device is simplified, which makes the driving device have a more compact structure, lighter weight and lower cost.

Abstract: A stator and a multiphase brushless electric motor utilizing the stator are provided. The stator which includes a stator core having a ring portion and a plurality of stator poles; a plurality of stator coils wound on the stator poles and having coil terminals; and a wiring frame fixed to the stator core, and comprising a plurality of conducting electrically insulated from each other. The conductor elements are electrically coupled to corresponding coils terminals to form multiphase windings. At least three coil terminals of the stator coils electrically coupled to respective conducting members are directly electrically coupled to a multi-phase power supply. The above stator can provide a simple, economic and reliable connection between the coil terminals and the multiphase power supply.

Abstract: A sensor integrated circuit includes a rectifier, a power supply module, an output control circuit and a detecting circuit. The rectifier is configured to convert an external power supply into a first direct current power supply. The power supply module includes a voltage regulator configured to generate a second direct current power supply different from the first direct current power supply. The detecting circuit is powered by the second direct current power supply and configured to detect an inputted signal and correspondingly generate a control signal. The output control circuit is configured to control, in response to at least the control signal, the sensor integrated circuit to operate in at least one of a first state in which a current flows out from an output port and a second state in which a current flows in from the output port.

Abstract: A plunger includes an elongate plunger body which is at least in part cylindrical and a plunger head at one end of the plunger body. The plunger body has a magnet-interface body portion which has a non-cylindrical cross-section perpendicular to a longitudinal axis of the plunger body. A magnetic latching solenoid actuator using such a plunger is also provided, as is a method of improving the performance of a magnetic latching solenoid actuator.

Abstract: A medical pump includes a single phase synchronous motor, a rod piston, a cylinder for receiving the rod piston for reciprocating motion therein. The single phase synchronous motor includes a stator and a rotor rotatable relative to the stator. The rotor includes a plurality of permanent magnets. The stator comprises a stator core and a winding wound around the stator core. The stator core comprises two opposed pole portions that define there between a rotor receiving space for receiving the permanent magnets. The medical pump has a compact structure. In addition, the motor of the medical pump has a constant rotation speed and has a smaller size and less weight under the same output power conditions as traditional motors used in medical pumps. The medical pump is particularly suitable for use in atomizers.

Abstract: A rotor includes a magnet yoke and a number of permanent magnets. The magnet yoke defines a number of accommodating slots therein, and each of the permanent magnets is received in one of the accommodating slots. An elastic member protrudes from the magnet yoke towards each of the accommodating slots, the permanent magnets are inserted in the corresponding accommodating slots, and the elastic members are bent and abut against the permanent magnets. A motor and a power tool include the rotor are also disclosed.

Abstract: An actuator for a vehicle air-conditioning unit, has a housing, an output driven by a gear train, a motor driving the output via the gear train, a PCB connected to the motor for supplying power to the motor; and lead wires connected to the PCB via a direct connection connector to supply power to the PCB. Terminals of the connector are crimped to the lead wires and make direct mechanical contact with contact pads formed on the PCB.

Abstract: A motor stator includes a stator core, a winding wound around the stator core, and a circuit board connected with the winding. The circuit board forms a through hole. The through hole has an opening formed at an outer edge of the circuit board. A wire terminal of the winding slides into the through hole via the opening, and a distal end of the wire terminal is bent and soldered to a surface of the circuit board after passing through the through hole.