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716results about "Reverse polarity correction" patented technology

Wireless power transmitter and method of controlling the same

A method and a wireless power transmitter for transmitting charging power to a wireless power receiver are provided. The method includes applying the charging power to the wireless power receiver; determining whether a current value of the charging power is greater than a predetermined threshold; and driving the overcurrent protection circuit upon a determination that the current value of the charging power is greater than the predetermined threshold.
Owner:SAMSUNG ELECTRONICS CO LTD

Power transmission device and electronic instrument

A power transmission device includes a resonant capacitor that forms a series resonant circuit with a primary coil, a first power transmission driver and a second power transmission driver that drive the primary coil, and a control IC that outputs driver control signals to the first and second power transmission drivers. The resonant capacitor, the first and second power transmission drivers, andthe control IC are provided on a substrate. An output terminal that outputs the driver control signal to the first transmission driver is provided on a first side of the control IC, an output terminal that outputs the driver control signal to the second transmission driver is provided on a second side of the control IC, and an input terminal that receives a signal waveform at one of coil connection terminals through a waveform detection wiring pattern is disposed on a third side of the control IC. The resonant capacitor, the first power transmission driver, and the second power transmission driver are disposed between a first substrate side parallel to the first side of the control IC and the control IC, and the waveform detection wiring pattern extends in an area between a second substrate side and an extension of the third side of the control IC and is connected to one of the coil connection terminals.
Owner:SEIKO EPSON CORP
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