Novel wireless charger and method for lowering wireless charging stand-by power consumption of novel wireless charger
A wireless charger and wireless charging technology, applied in current collectors, battery circuit devices, electric vehicles, etc., to achieve the effects of reducing power consumption, reducing standby power consumption, and reducing standby current
Inactive Publication Date: 2015-04-22
SHENZHEN HANGSHENG ELECTRONICS
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Problems solved by technology
[0004] The present invention provides a method for controlling wireless charging for the situation that the wireless charging standby current cannot meet the requirements of the vehicle. Using wireless touch technology, the wireless charging module is turned on when the mobile phone is detected to be approached. When there is no mobile phone nearby, the system is always in a low-power mode to meet the standby current requirements
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[0026] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:
[0027] The present invention is a novel wireless charger. The novel wireless charger has an infrared proximity sensor and an MCU, and a transparent window is arranged on the casing. The infrared proximity sensor is located inside the PCB and the probe of the infrared proximity sensor is facing the transparent window for detecting mobile phones. Is it close to a wireless charger. While adding an MCU to a traditional wireless charger, the power consumption of this MCU is relatively low, generally speaking, less than 10mw. This mcu can set the IO interrupt. The interrupt IO port pin is connected to the proximity sensor pin. The proximity sensor can wake up regularly to detect the surrounding conditions through the setting. When an object is detected to block the shell window, it will cause the proximity sensor pin to be pulled down and Just p...
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The invention belongs to wireless chargers, and particularly relates to a novel wireless charger and a method for lowering the wireless charging stand-by power consumption of the novel wireless charger. The wireless charger comprises a wireless charging module, a power source, an mcu, a PCB and an infrared proximity sensor. A transparent window is arranged on a shell, the infrared proximity sensor is arranged in the transparent window, the mcu is connected with the infrared proximity sensor and is also connected with the power source module, the power source module is connected with the wireless charging module through a mos transistor, and the mcu is connected with the mos transistor. The invention provides a wireless charging control method. The infrared proximity sensor technology is used, the sensor is aroused to detect the ambient environment at set intervals, when it is detected that a mobile phone approaches, the mcu is informed in an interrupt mode, the wireless charging module can be started, under the condition that no mobile phone approaches, the mcu is always in a low power consumption mode, and therefore the standby current requirement can be met.
Description
technical field [0001] The invention belongs to a wireless charger, in particular to a novel wireless charger and a method for reducing wireless charging standby power consumption. Background technique [0002] Wireless charging that conforms to the standards of the Wireless Charging Alliance is becoming more and more popular, and vehicle wireless chargers are also beginning to appear in the market. The principle of Wireless Charging Alliance wireless charging, the system consists of a transmitter (transmitter) and a receiver (receiver), the transmitter is mainly It is composed of primary coil, communication, control unit and power transmission unit. The receiving end is mainly composed of secondary coil, communication unit, control unit, power receiving unit and load. Through electromagnetic induction technology, the energy is transmitted to the receiving end through the primary coil. Level coil, transmission frequency 112KHz--205KHz. Wireless charging standby mode design:...
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IPC IPC(8): H02J7/00H02J17/00H02J50/10H02J50/80
CPCH02J7/025
Inventor 黄新国何照丹
Owner SHENZHEN HANGSHENG ELECTRONICS