FU DA TONG TECHNOLOGY CO., LTD. Patent applications |
Patent application number | Title | Published |
20140203822 | CURRENT SIGNAL SENSING METHOD FOR SUPPLYING-END MODULE OF INDUCTION TYPE POWER SUPPLY SYSTEM - A current signal sensing method for a supplying-end module of an induction type power supply system, wherein the supplying-end module includes a supplying-end coil and a resonant capacitor, includes serially connecting a current sensing element between the supplying-end coil and the resonant capacitor to obtain a current signal corresponding to a current of the supplying-end coil; and interpreting the current signal to retrieve data of a receiving-end module of the induction type power supply system. | 07-24-2014 |
20130342027 | METHOD OF AUTOMATICALLY ADJUSTING DETERMINATION VOLTAGE AND VOLTAGE ADJUSTING DEVICE THEREOF - A method of automatically adjusting a determination voltage used in an induction type power supply system includes detecting an output voltage of a signal analysis circuit; adding a first threshold value to the output voltage to generate a first determination voltage and subtracting a second threshold value from the output voltage to generate a second determination voltage; outputting the first determination voltage as a reference voltage; and comparing a trigger signal of the signal analysis circuit and the reference voltage, in order to generate a first data code; wherein when the step of comparing the trigger signal of the signal analysis circuit and the reference voltage in order to generate the first data code fails, the method further includes outputting the second determination voltage as the reference voltage and comparing the trigger signal of the signal analysis circuit and the reference voltage, in order to generate a second data code. | 12-26-2013 |
20130254570 | OPERATING CLOCK SYNCHRONIZATION ADJUSTING METHOD FOR INDUCTION TYPE POWER SUPPLY SYSTEM - An operating clock synchronization adjusting method, for an induction type power supply system, includes receiving a plurality of data pulses, by a supplying-end module, according to a clock of a microprocessor of the supplying-end module, for generating a plurality of data frames. A period between first data pulses corresponding to starting bits of a first detecting data frame and a second detecting frame among the plurality of data frame is calculated, for acquiring a data frame period. A period between the first data pulse of the second data frame and a second data pulse of the second data frame is calculated, for acquiring a bit period. The bit period and a bit time threshold are compared for determining whether to adjust the clock of the microprocessor according to the data frame period and a frame time threshold. | 09-26-2013 |
20130187476 | Inductive power supply system and intruding metal detection method thereof - The inductive power supply system comprises an input power module for receiving a stable voltage source, a storage module for storing a predetermined information, a processing module for generating a control signal according to the predetermined information and a feedback signal, a driving module for transforming the stable voltage source into a driving voltage according to the control signal, an inductive coil for electrically transmitting the driving voltage to process an inductive power transmission operation, and a feedback module for generating the feedback signal according to the driving voltage received by the inductive coil, where the predetermined information represents an initial state of the inductive power supply system comprising a sinusoidal amplitude corresponding to the driving voltage, and an intruding metal can affect another sinusoidal amplitude of the feedback signal to make the processing module correspondingly generate the control signal during the inductive power transmission operation. | 07-25-2013 |
20120314745 | METHOD OF TIME-SYNCHRONIZED DATA TRANSMISSION IN INDUCTION TYPE POWER SUPPLY SYSTEM - The present invention provides a method of time-synchronized data transmission in induction type power supply system, comprising timers and programs installed in a supplying-end module and a receiving-end module to predict the time for generating the trigger signal at the receiving-end end and perform steps for detecting signals to avoid omission. Under the condition of high power transmission, power output on the supplying-end coil is pre-reduced prior to the time expected for receiving trigger data, making the main carrier wave amplitude decrease in a short time period. In every process of data transmission, timers are mutually calibrated and synchronized again to transmit power without detecting and receiving in the period when no data are expected to be transmitted, thus preventing interference of power load noise and enabling the induction type power supply system to transmit data code stably. | 12-13-2012 |
20120286724 | Mobile wireless charger system - A mobile wireless charger system includes a supplying-end module and a receiving-end module. The supplying-end module adjusts the output wave energy to the receiving-end module at a handheld apparatus by means of modulated frequency and driving power. The microprocessor of the supplying-end module can receive different voltage input from different power sources, such as high voltage city power supply or low voltage solar cell for charging a rechargeable battery at the handheld apparatus in a wireless manner. | 11-15-2012 |
20120272076 | INDUCTION TYPE POWER SUPPLY SYSTEM WITH SYNCHRONOUS RECTIFICATION CONTROL FOR DATA TRANSMISSION - An induction type power supply system with synchronous rectification control for data transmission is disclosed to include a supplying-end module with a supplying-end coil and a receiving-end module with a receiving-end coil for receiving power supply from the supplying-end coil and providing a feedback data signal to the supplying-end coil during power supply transmission subject to the operation of a rectifier and signal feedback circuit of the receiving-end module that breaks off electric current transiently to change the load characteristics of the receiving-end coil, assuring a high level of data signal transmission stability and a high level of power transmission efficiency. | 10-25-2012 |
20120193998 | LOW-LOSS DATA TRANSMISSION METHOD FOR HIGH-POWER INDUCTION-TYPE POWER SUPPLY SYSTEM - A low-loss data transmission method used in a high-power induction-type power supply system consisting of a supplying-end module and a receiving-end module is disclosed. The supplying-end microprocessor of the supplying-end module has built-in anti-noise signal analysis software that can remove noises from the data signal fed back by the receiving-end module, assuring high stability of the transmission of data signal and reducing energy dissipation of data transmission. Subject to a special circuit arrangement of the receiving-end coil of the receiving-end module, signal modulation is performed on a low voltage DC square wave, assuring a high level of stability of the supplying of power supply to the receiving-end module. | 08-02-2012 |
20110264945 | Power supplying and data transmitting method for induction type power supply system - A power supply and data signal transmission method used in an induction type power supply system consisting of a power supply module and a power-receiving module for transmission of electrical energy and data signal is disclosed. The microprocessor of the power supply module scans the resonant point of the power supply coil to send a segment of energy for recognition of a feedback signal from the power-receiving module and then starts providing power supply after receipt of the feedback signal, and then runs further signal modulation, transmission, data decoding and other follow-up steps, achieving transmission of electrical energy and data signal wirelessly. | 10-27-2011 |
20090267561 | INDUCTION TYPE POWER SUPPLY DEVICE - An induction type power supply device includes a power supply base unit having a connection interface connectable, an oscillator circuit for producing an AC signal upon connection of the connection interface to an electric outlet, a driver circuit for amplifying the AC signal and a primary inductor for obtaining a resonant frequency and releasing the AC signal, and an attached induction device placed on the power supply base unit and having a secondary inductor for receiving the AC signal from the primary inductor by means of magnetic induction, a rectifier filter circuit for converting the AC signal into a DC power supply, a power management circuit for regulating the DC power supply subject to a predetermined voltage and current value and a connection device for the connection of an external mobile electronic apparatus and for outputting the regulated DC power supply from the power management circuit to the connected external mobile electronic apparatus. | 10-29-2009 |