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Current Sampling

Current Sampling-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Interleaved power factor corrector
Midea Group Co., Ltd.
August 09, 2018 - N°20180226891

An interleaved power factor corrector includes a first pfc component, a second pfc component, a current sampling resistor, a current detection component, a voltage detection component, and a control component. The current detection component is configured to detect a current i1, a current i2 and a current iin.
Slow-disk detection method and apparatus
Huawei Technologies Co., Ltd.
June 07, 2018 - N°20180157438

A slow-disk detection method is disclosed, the method includes: periodically performing sampling in a detection period; each time sampling is performed, obtaining a first delay of data reading or writing that is performed on a hard disk in current sampling, and a first-delay-related indicator value; determining a first range to which the first-delay-related indicator value belongs; and if the first ...
Constant current power supply with a plurality of current outputs for led lamps
Wanjiong Lin
May 24, 2018 - N°20180146529

A constant current power supply with a plurality of current outputs for led lamps includes a dc/dc control module, an overvoltage detection circuit, a current sampling resistor, at least one output current conversion circuit and at least one overvoltage protection resistor. The output current conversion circuit includes a switch, a mos transistor with a grid electrode electrically connected to ...
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Charging system and charging method for terminal and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
May 03, 2018 - N°20180123383

A charging system, a charge method, and a power adapter are provided. The charging system includes a battery, a first rectifying circuit, a switch circuit, a transformer, a second rectifying circuit, a sampling circuit, and a control circuit.
Charging system and charging method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
May 03, 2018 - N°20180123376

The present disclosure discloses a charging system, a charging method, and a power adapter. The charging system includes a battery, a first rectifier, a switch unit, a transformer, a second rectifier, a sampling unit, and a control unit.
Current sampling and processing device and method for an inverter
Nio Nextev Limited
March 29, 2018 - N°20180091063

The present invention provides current sampling and processing device and method for an inverter, wherein said method comprises: setting initialization parameters during initial start-up of the current sampling and processing process and subsequently enabling a pulse width modulation counter; triggering and implementing a current sampling operation when the value of the pulse width modulation counter equals to the value of ...
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Peak current servo
Dialog Semiconductor (uk) Limited
March 22, 2018 - N°20180083524

The proposed disclosure combines peak-mode monitoring with valley-mode control, in a buck switching converter, by means of a peak-current sampling circuit, not to turn the high side device off, but to control a slow loop, which in turn controls a variable offset incorporated into the loop control current. This helps the loop control current define the exact peak current, regardless ...
Charging system and method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
March 15, 2018 - N°20180076636

The present disclosure discloses a charging system and method, and a power adapter. The system includes a power adapter and a terminal.
Power factor correction device and controlling method thereof, and electronic device
Murata Manufacturing Co., Ltd.
March 01, 2018 - N°20180062504

Pfc device and controlling method thereof, and an electronic device are provided. The device includes: first and second input terminals configured to receive ac input signal including alternating positive and negative half-cycles; an output terminal configured to provide output signal; an inductor a first terminal of which is coupled with the first input terminal; a first bridge arm including first ...
Charging system and charging method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
March 01, 2018 - N°20180062413

The present disclosure discloses a charging system, a charging method and a power adapter. The system includes a battery, a first rectifier, a switch unit, a transformer, a compositing unit, a sampling unit, and a control unit.
Current sampling and holding circuit and signal acquisition system
Shenzhen Goodix Technology Co., Ltd.
February 22, 2018 - N°20180053564

A current sampling and holding circuit is disclosed. The current sampling and holding circuit includes: a canceling circuit, connected in series between a vdd terminal and a current sensor, being conducted according to a first enable signal, and configured to output a current to cancel a direct-current component in the current sensor; and a mirroring circuit, connected in parallel between ...
Charging system and charging method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Lt D.
February 15, 2018 - N°20180048175

The present disclosure discloses a charging system, a charging method and a power adapter. The system includes a battery, a first rectifier, a switch unit, a transformer, a compositing unit, a sampling unit, and a control unit.
Charging system and method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Lt D.
February 15, 2018 - N°20180048164

The present disclosure discloses a charging system and method, and a power adapter. The system includes a power adapter and a terminal.
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  • + full patent PDF documents of Current Sampling-related inventions.
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Charging system, charging method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
February 01, 2018 - N°20180034310

A charging system, a charging method, and a power adapter are provided. The power adapter includes a first rectification unit, a switch unit, a transformer, a second rectification unit, a first charging interface, a sampling unit, and a control unit.
Charging system, charging method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp, Ltd
February 01, 2018 - N°20180034309

A charging system, a charging method, and a power adapter are provided. The power adapter includes a first rectification unit, a switch unit, a transformer, a second rectification unit, a first charging interface, a sampling unit, and a control unit.
Charging system, charging method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
January 25, 2018 - N°20180026472

A charging system, a charging method and a power adapter are provided. The power adapter includes a first rectification unit, a switch unit, a transformer, a second rectification unit, a first charging interface, a sampling unit, and a control unit.
Charging system and charging method, and power adapter
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
November 23, 2017 - N°20170338670

The present disclosure discloses a charging system and a charging method and a power adapter. The system includes a battery, a first rectifier, a switch unit, a transformer, a second rectifier, a sampling unit and a control unit.
Warning method of obstacles and device of obstacles
Beijing Smarter Eye Technology Co. Ltd.
November 23, 2017 - N°20170337434

An obstacle warning method includes the steps of: acquiring scenario images at a current sampling time and a previous sampling time, and a map about first relative distances between respective viewing points in a viewing field and a vehicle; acquiring a profile and marking information of an obstacle and a map about a second relative distance between the obstacle and ...
Multifunctional wall socket
Winon Holding Company Limited
November 16, 2017 - N°20170331231

A multifunctional wall socket related to electrical conduction connecting device is provided. In one embodiment, the socket comprises a socket cover with a conventional power connector, and a usb port arranged on the socket cover.
Multi-channel dual-mode digital control led driving circuit and led lamp
Shenzhen Skyworth Semiconductor Design Center Co. Ltd
October 12, 2017 - N°20170295632

A multi-channel dual-mode digital control led driving circuit and an led lamp. The driving circuit comprises a current sampling module (10), a comparison and detection module (30), a digital control module (40) and a constant current control module (20).
Method of manufacturing semiconductor devices by using sampling plans
Qoniac Gmbh
August 24, 2017 - N°20170242425

A method of manufacturing semiconductor devices includes defining a sampling plan that contains position information about metrology sites on process wafers. A first property of the process wafers is measured to obtain measurement values at measurement points, wherein a quantity of the measurement points per process wafer is at least tenfold a quantity of the metrology sites.
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