| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 318255000 | PLURAL DIVERSE MOTOR CONTROLS | 24 |
| 20090058331 | Semiconductor Power Converter - A semiconductor power converter includes a power converter for converting direct current to three-phase alternating current or vice versa; a means for detecting a current in an alternating current side of the power converter; a means for providing a current reference in the alternating current side of the power converter; a current controller for calculating a voltage reference in the alternating current side of the power converter to match the current reference and a value of the detected current; and a pulse width modulation means for controlling the power converter through pulse width modulation based on the voltage reference, wherein the current reference is used in place of the value of the detected current for at least one phase current among three phase currents in the alternating current side. | 03-05-2009 |
| 20130127379 | BLOWER MOTOR FOR HVAC SYSTEMS - A blower motor assembly having a variable speed motor that is suitable for direct, drop-in replacement in a residential HVAC (heating, ventilation, and air conditioning) system that employs a PSC motor. The blower motor assembly includes at least a neutral input and two hot AC line connections, one for connection to the heating power source and the other to the cooling power source. A sensing circuit senses which of the inputs is energized by sensing either voltage or current on the inputs. The sensing circuit delivers a corresponding signal to a motor controller to control the speed of the variable speed motor. The blower motor assembly may also be equipped with additional hot AC inputs, more than one neutral line, and several sensing circuits for sensing current or voltage in the hot inputs and/or the neutral lines for controlling various aspects of the variable speed motor. | 05-23-2013 |
| 20130169200 | DAUGHTER CIRCUIT BOARD OF ELECTRONICALLY COMMUTATED MOTOR FOR INTERFACE SIGNAL CONVERSION - A daughter circuit board of an electronically commutated motor for interface signal conversion, including circuit units integrated on the daughter circuit board and five ports for communicating with a control system of a user terminal. The five ports include: a R/T port, a Vcc port, a Common port, a Vsp port, and an FG port. | 07-04-2013 |
| 20130264976 | HIGH EFFICIENCY ROLLER SHADE AND METHOD FOR SETTING ARTIFICIAL STOPS - The present invention advantageously provides a motorized roller shade that includes a shade tube, a motor/controller unit and a power supply unit. The motor/controller unit is disposed within the shade tube, and includes a bearing, rotatably coupled to a support shaft, and a DC gear motor. The output shaft of the DC gear motor is coupled to the support shaft such that the output shaft and the support shaft do not rotate when the support shaft is attached to the mounting bracket. | 10-10-2013 |
| 20160142001 | MOTOR CONTROL DEVICE AND MOTOR CONTROL SYSTEM - A motor control device includes: a control processing unit that controls driving of a motor based on a command signal input from a controller so as to command an operation of the motor and a detection signal which is a detection result of the operation of the motor; and an abnormality determining unit that detects an abnormality in the controller, the motor control device, and the motor based on the command signal, the detection signal, and a control signal generated in the motor control device and that determines a level of repeatability of the detected abnormality based on a predetermined criterion. The control processing unit transitions from a normal mode to a specific abnormality alarm mode when the abnormality determining unit determines that an specific abnormality having high repeatability has occurred. | 05-19-2016 |
| 20160156302 | ELECTRIC POWER CONVERTER | 06-02-2016 |
| 20170237383 | METHOD AND POWER CONVERTER UNIT FOR OPERATING A GENERATOR | 08-17-2017 |
| 318256000 | Motor-reversing | 12 |
| 20080315804 | LOAD DRIVE CONTROL CIRCUIT - A load drive control circuit for controlling a load that includes connection terminals. The load drive control circuit includes bridge circuits respectively connected to the connection terminals of the load. Each bridge circuit includes two semiconductor elements, which are connected between a power supply and ground, and an output terminal. The semiconductor elements are each controlled to be switched between activated and deactivated states. The output terminal of each bridge circuit generates a bridge output that varies in accordance with a combination of the activated and deactivated states of the semiconductor elements in the bridge circuit. A detection circuit detects whether a short circuit is occurring in the connection terminals. A control circuit switches the bridge circuits to electrically disconnect the load from the power supply when a short circuit is occurring during a period in which the load is in a suspended state. | 12-25-2008 |
| 318257000 | With running-speed control | 6 |
| 20090128066 | Rotation speed controlling system for shredder motor - A system for controlling the rotation speed of a shredder motor is disclosed. It consists of a bridge rectifier circuit, a forward/reverse controlling switch, a motor speed switch, and AC motor coils. By changing a switch, it is possible to activate the following four modes: forward fast, reverse fast, forward slow, and reverse slow. A user can thus operate a shredder at high torque and low rotation speed or high rotation speed and low torque depending on the number of sheets to be shredded. | 05-21-2009 |
| 20090284191 | Line Voltage Interface for Automation Systems - An integrated PCB-based solid state line voltage interface for use in automated control system applications. Relays connect various functional loads to the line level source in response to input from a controller unit. Switches enable a user to override the controller unit, and manually control the connection of the functional loads. An alternative embodiment of the present invention further includes limit switches. The compact nature of the device facilitates ease of installation, mounting of multiple units in the same space, and mounting in various specialized locations as desired. | 11-19-2009 |
| 20100156329 | Bidirectional different speed ratio electric motor driving device with bidirectional input - The present invention discloses that the output end of the electric motor capable of being operated in bidirectional rotation is transmitted to the input end of different rotating speed ratio and direction output transmission device, and it is through the output end of the different rotating speed ratio and direction output transmission device to further provide different directional rotating output for driving the rotating load, wherein the user can operatively control the driving input direction to provide different rotating directional different speed change ratio output in different driving input direction. | 06-24-2010 |
| 20100164414 | MOTOR DRIVING SYSTEM AND METHOD - A motor driving system includes a storage unit, a driver, and a controller. The driver includes a first programmable logic device (PLD). The controller includes a second PLD. The storage unit stores a control program. The controller generates a first transmission data to the first PLD and a second transmission data to the second PLD according to the control program. The first PLD generates a first message packet including the first transmission data. The second PLC generates a second message packet including the second transmission data. The first and second PLDs communicate with each other using a full duplex transmission mode or a half duplex transmission mode. | 07-01-2010 |
| 20110018478 | DIGITAL PULSE WIDTH MODULATED MOTOR CONTROL SYSTEM AND METHOD - A digital motor control system utilizes at least two variable pulse generators to produce two streams of pulse width modulated pulses to control the motor speed and direction of rotation of a motor. An input control signal may be compared with two reference signals, such as two waveforms which are inverted with respect to each other, to produce two streams of pulse width modulated signals. A logic circuit combines the two streams of pulses. In one embodiment, depending on the input control signal level, where the two streams do not overlap, reverse motor control signals are produced and where the two streams overlap, forward motor control signals are produced. As the pulse widths of the pulse width modulated pulses change, the motor may receive continuous power in one direction, slow down, stop, and then increase speed in the opposite direction until it receives continuous power in the other direction. The variable pulse generators may be of various types including one-shot multivibrators and comparators. In one embodiment, two sets of N-channel and P-channel power switches may be utilized to drive the motor. | 01-27-2011 |
| 318258000 | And braking | 1 |
| 20080265810 | DC motor structure for hoist machine - The present invention relates to a DC motor for hoist machine that is essentially a design of applying DC brushless inverter motor in the hoist machine. The stator and rotor of the brushless motor are formed in such a manner that a plurality of magnets are placed with alternation in polarity into the inside of the rotor of motor to generate main magnetic field, and that a current is supplied to the windings inserted within the block made of silicon steel lamination to exert push force. The integration of the application of DC brushless inverter motor combined with the electric and electronic elements gradually brings about inverter-controlled technology with maturity, by which excellent energy-saving effect can be obtained in case of the application having variable load, due to the fact that the inverter control has better manipulation property and better features of motor-output, and possesses high torque-output and better manipulation property in low-speed of rotation running condition. Furthermore, a speed-regulation button is provided on the push button switch of the present invention, by which the rotation speed can be regulated directly so as to increase the entire performance in use. | 10-30-2008 |
| 318261000 | With braking | 1 |
| 20090009110 | Motor control apparatus providing exercise resistance and auto-rewinding functions - A motor control apparatus providing an exercise resistance and an auto-rewinding function mainly employs a microprocessor to operate with a current detection feedback loop and a motor rotation speed detection loop for precisely controlling a quick random operation of a motor such that an axle of the motor can quickly control a loss braking unit and a power driving unit based on the existence of an external force, and the motor can automatically switch to an electric generator output mode (for providing an exercise resistance) or an electric machine output mode (for providing the automatic rewinding function). | 01-08-2009 |
| 318264000 | With automatic starting and/or stopping | 4 |
| 20080303460 | Method and Device for Identifying Pinching Situations in Displacing Drives in Motor Vehicles - Disclosed is a method for identifying pinching situations in a motor-driven displacing device. During a displacing process along an actuating direction, values (W(n) to (W(n−m)) of a quantity ( | 12-11-2008 |
| 318265000 | Stopping upon predetermined movement of or position of motor or driven device | 3 |
| 20090218965 | Electric Motor Control - A control system for an electric motor is arranged to determine the position of the motor from at least one electrical parameter by means of a position determining algorithm which is reliant on movement of the motor to determine the motor position, and to start up the motor from rest by applying voltages to the motor that are independent of the position of the motor. | 09-03-2009 |
| 318266000 | At limit-of-travel of motor or driven device | 2 |
| 20080309263 | METHOD AND DEVICE FOR CONTROLLING POWER CAR WINDOW LIFT - The invention discloses a method for controlling a power car window lift. The method includes the following steps: detecting an operation state signal of the car window with a detection element; inputting the detection signal of the detection element into the controller; and the controller sending a control signal to an actuator, which controls the operation state of the car window lift. The main control element of the controller is a thyristor or an equivalent functional element. The car window lift's operation state signal includes a car window closed obstacle signal, a car window closed-in-place signal, a car window opened-in-place signal, and a car window opened obstacle signal. The invention further discloses a device for implementing the method for controlling the power car window. By application of the invention, the car window will be provided with both an anti-pinch protection function and an overload protection function, and the manufacturing cost very low. | 12-18-2008 |
| 20130038254 | MULTISENSORY CONTROL OF A PATIENT-LIFTING-DEVICE - Systems, methods and apparatus are provided through which in some multisensory implementations, a patient-lifting-device is controlled by voice recognition, keyboard text input, synaptic control and/or a tongue tactile input commands. | 02-14-2013 |
| 318268000 | Running-speed control | 4 |
| 20110018479 | SYSTEM FOR CONTROLLING ROTARY SPEED OF COMPUTER FAN - A system can control a rotary speed of a computer fan according to the type of the computer fan. If the computer fan is determined to be a 3-pin fan, the system can output a changeable voltage to control the rotary speed of the 3-pin fan. | 01-27-2011 |
| 20110084632 | CIRCUIT FOR CONTROLLING ROTATION SPEED OF COMPUTER FAN - A circuit for controlling a rotation speed of a computer fan includes a control chip, a conversion circuit, a fan header, a first switch, and a second switch. When a first terminal of the first switch is connected to a second terminal of the first switch, and a first terminal of the second switch is connected to a second terminal of the second switch, the conversion circuit converts a control signal received from the control chip to a voltage signal, and outputs the voltage signal to a power pin of the fan header. When the first terminal of the first switch is connected to a third terminal of the first switch, and the first terminal of the second switch is connected to a third terminal of the second switch, a control pin of the fan header receives the control signal, the power pin receives power from a first power supply. | 04-14-2011 |
| 318272000 | With automatic starting and/or stopping | 2 |
| 20080265811 | DC motor variable kick-start - A method of operating a direct current motor fan assembly is provided in which a motor controller operates to apply full power to kick-start a motor to overcome static forces. As soon as a sensor determines that the motor has begun to rotate, the motor controller changes the motor drive level from full power to a predetermined lower level to maintain a desired rotational speed. | 10-30-2008 |
| 20160111983 | ELECTRICAL MOTORS AND METHODS THEREOF HAVING REDUCED ELECTROMAGNETIC EMISSIONS - Motors and method of operation thereof operable in a running mode wherein the motor operates at a constant speed, and operable in a park mode wherein the motor is dynamically parked. The motor is housed within a housing and includes a rotating park disk configured to cause the motor to dynamically park. A park wire electrically couples the park disk to a switch configured to selectively switch the motor between the running mode and the park mode, and a power wire electrically couples the park disk to a power source. The park disk is electrically isolated from the power source during operation of the motor in the running mode and the park wire is electrically connected to the power source through the park disk and the power wire during operation of the motor in the park mode. | 04-21-2016 |
| 318276000 | Acceleration control | 1 |
| 318277000 | With automatic starting and/or stopping | 1 |
| 318278000 | In response to an electrical condition | 1 |
| 20080303461 | Method and Apparatus for Detecting Blocking of a Direct Current Motor - Both a method and a use by this method of an apparatus for detecting blocking of a direct current motor ( | 12-11-2008 |
