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Patent # Description
US-9,991,847 Method and apparatus for broadband data conversion
A receiver may receive a signal and process each of a plurality of sub-bands of the received signal via a respective one of a plurality of first-type receive...
US-9,991,845 Ground fault detection device
When a ground fault detection device detects a ground fault of a photovoltaic string, for example, while a power conditioner is in operation, a great current...
US-9,991,844 Smart sensor devices for measuring and verifying solar array performance
A device comprises a platform constructed and arranged to be mounted to one or more solar array modules and one or more solar irradiance sensors on the platform...
US-9,991,842 Systems and methods to reduce field buildup between cells and glass and frame assembly for solar energy production
Systems and methods for removing charge buildup/leakage from solar modules. A discharge controller may be coupled between a solar module and a string bus of a...
US-9,991,841 Self-cleaning solar power system
A photovoltaic (PV) module cleaning system can include a robotic cleaning device and a support system. The support system can be configured to provide a metered...
US-9,991,840 Method and unit for controlling and/or protecting an actuator of a piece of mobile equipment of a building
A method for controlling and/or protecting an actuator of a piece of mobile equipment of a building, the actuator comprising a motor, comprises the steps...
US-9,991,839 Motor controller
A maximum spectrum peak reduction unit sets a PWM count generated by a PWM duty ratio calculation unit for a specific current control period as PWM counts for...
US-9,991,838 Drive control unit for motor
A drive control unit in which a drive control system for a motor is made redundant so that a motor having two coil sets is individually driven and controlled...
US-9,991,837 Systems and methods for vibration and noise manipulation in switched reluctance machine drivetrains
Systems and methods to manipulate the noise and vibration of a switched reluctance machine (SRM), capable of being implemented in a controller. By use of...
US-9,991,836 Systems and methods for identifying end stops in a linear motor
Systems and methods for operating linear motors, and for determining whether a linear motor has reached the end of its power and return strokes. In one...
US-9,991,835 Control device for electric compressor
A control device for an electric compressor, capable of successfully controlling a drive motor of the compressor in response to the load fluctuation having...
US-9,991,834 System and method for permanent magnet motor control
A method of operating an electric motor is disclosed. The method includes: determining a d-axis resistance of an electric motor and a Q-axis resistance of the...
US-9,991,833 Control device for rotating electric machine
A control device for rotating electric machine, which controls a rotating electric machine as a charging electric generator, using an inverter circuit, the...
US-9,991,832 Detecting brushfire in power systems
In some examples, a detection circuit is configured to detect a brushfire in a power system based on an electrical signal from the power system. The detection...
US-9,991,831 DC motor control device and game machine
A DC motor control device includes a communication circuit configured to receive a control command specifying a target rotation amount for a DC motor, a sensor...
US-9,991,830 Control method for motor of electronic brake
Disclosed is a control method for a motor of an electronic brake. The control method for a motor of an electronic brake includes: a stop mode-starting step of...
US-9,991,829 Direct-axis current protection method and device for permanent magnet synchronous motor drive system
A direct-axis current protection method and device for a permanent magnet synchronous motor drive system. The method includes: pre-calculating the direct-axis...
US-9,991,828 Voltage level detecting device, motor driving apparatus, motor driving system, and method for detecting voltage...
A voltage level detecting device is provided including comparators, a detection circuit, a trigger signal output circuit, a delayed control signal output...
US-9,991,827 Methods and apparatus for automatic lead angle adjustment using fly-back voltage for brushless DC control
A method includes: outputting high side driver gate signals to a plurality of high side driver devices and outputting low side driver gate signals to a...
US-9,991,826 Motor control circuit, motor drive control apparatus and control method of motor drive control apparatus
A motor control circuit comprising a speed control circuit configured to output speed command information relating to the rotational speed of a motor based on...
US-9,991,825 Outdoor power equipment system with modular motor and modular battery
A power equipment system with a plurality of power equipment units each including a working tool. Each of the power equipment units may include provisions...
US-9,991,824 Self powered optical system
Apparatus for a self-powered optical transmitter system. One such system includes an inductor, a power converter, an optical driver, and an optical transducer....
US-9,991,823 Assembly for an ultrasonic motor
The invention relates to an assembly for an ultrasonic motor, comprising an actuator body, an actuator retainer that accommodates the actuator body, an actuator...
US-9,991,822 MEMS component and method for the production thereof
The invention proposes a MEMS component having a crystalline base body (GK), a recess (AN) and a structured assembly (A) which closes said recess, in which an...
US-9,991,821 Transformerless multiple output capable power supply system
An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is...
US-9,991,820 Multi-level converter and method of operating same
A multi-level converter is provided. The multi-level converter may include a plurality of direct current (DC) sources coupled in series to form a DC link, and...
US-9,991,819 Power conversion system and method for detecting isolated operation of the same
A power conversion system is capable of distinguishing easily and clearly between being interconnected to the power system and being in an isolated operation....
US-9,991,818 Apparatuses and related methods for a wireless power receiver using coupled inductors
A wireless power enabled apparatus includes a wireless power receiver. The wireless power receiver includes one or more receive coils configured to generate an...
US-9,991,817 Power converting device that uses a sine-wave-shaped current control range to output drive signal
A power converting device includes: a rectifying circuit connected to an alternating-current power supply for converting alternating-current power from the...
US-9,991,816 Method for operating an at least generator-operable electric motor and means for the implementation thereof
A method for controlling a multi-phase electric machine, operable at least in generator mode, whose phase terminals in an active bridge rectifier are...
US-9,991,815 Power conversion apparatus
A power conversion apparatus is provided with a bus bar connecting a cable connected to an external power supply or load and an internal circuit. To provide...
US-9,991,814 Pre-charging circuit of inverter
A pre-charging circuit of inverter is disclosed, the pre-charging circuit of inverter including a relay arranged between an output node of the rectifier and an...
US-9,991,813 Method for data transmission from a transmitter to a receiver in an AC power supply system, and apparatus for...
The invention relates to a method for the data transmission from an emitter (1) to a receiver (2) in an AC voltage network, comprising a distributor (3) and at...
US-9,991,812 Variable blanking frequency for resonant converters
A power supply includes a transistor that is connected to a primary winding of a transformer. A controller controls a switching operation of the transistor by...
US-9,991,811 Control method and control apparatus for flyback circuit
The present invention discloses a control method and a control apparatus for a Flyback circuit. The Flyback circuit includes a primary switch, a secondary...
US-9,991,810 Gate pre-positioning for fast turn-off of synchronous rectifier
A synchronous rectifier driver pre-positions a gate of a synchronous rectifier to allow for fast turn-off. The synchronous rectifier driver turns ON the...
US-9,991,809 Insulation-type synchronous DC/DC converter
The feedback IC is provided at the secondary side of the DC/DC converter and is coupled to the photo coupler. The error amplifier amplifies an error between a...
US-9,991,808 Cross regulation circuit for multiple outputs and cross regulation method thereof
A cross regulation circuit for multiple outputs, includes an input end and at least two output ends. A first output end of the at least two output ends is...
US-9,991,807 Apparatus and method for driving synchronous rectifier
Provided is apparatus and a method for driving synchronous rectifiers, which relate to the field of power supplies for communications. The apparatus includes:...
US-9,991,806 Voltage converter circuitry and methods implementing modulated feedback signal
Disclosed is a voltage converter and a method. The voltage converter includes: an input, an output, and a transformer including a primary winding and a...
US-9,991,805 On and off controlled resonant DC-DC power converter
The present invention relates to a resonant DC-DC power converter comprising an input side circuit comprising a positive and a negative input terminal for...
US-9,991,804 Bus controller including feedback control unit reducing power consumption
A power supply apparatus is provided, that supplies a bus voltage V.sub.BUS to a detachable device. A DC/DC converter generates a DC voltage V.sub.OUT used as...
US-9,991,803 Reduction of electromagnetic interference in a flyback converter
A method for reducing electromagnetic interference in a flyback converter includes activating a first switch to generate a primary current therein. The first...
US-9,991,802 Systems and methods for regulating output currents of power conversion systems
Systems and methods are provided for regulating a power conversion system. An example system controller includes a first controller terminal and a second...
US-9,991,801 Hybrid hysteretic control for LLC converter
An LLC converter includes an input having a first node and a second node. A first switch is coupled between the first node and a third node and a second switch...
US-9,991,800 Switched mode power supply with efficient operation at light loads and method therefor
A switched mode power supply includes an active clamp flyback converter having an input for receiving an input voltage, and an output for providing a regulated...
US-9,991,799 Switch mode power supplies including primary side clamping circuits controlled based on secondary side signals
A switch mode power supply includes an input, an output, and a power converter coupled between the input and the output. The power converter includes a...
US-9,991,798 Constant on-time control for power converter
An electronic device includes a power stage, a switch and a controller. Power is transferred from an input through the power stage to an output. The switch...
US-9,991,797 Semiconductor element drive apparatus
A semiconductor element drive apparatus for driving first and second semiconductor elements connected to a half-bridge circuit at respectively an upper-level...
US-9,991,796 Switch drive circuit
A switch drive circuit includes a high-side power supply section, a latch circuit, a high-side driver, a low-side driver, and a high-side switch control...
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