摘要:
The present inventions relates a wireless charging coil structure in electronic devices, comprising a PS coil module capable of emitting electromagnetic wave energy and a PR coil module capable of receiving power energy by electromagnetic induction. Each of the PS and PR coil modules includes a bar-shaped magnetic conductor, on which an insulated wire is wound into a first coil that is extended along the magnetic conductor to a given length and wound reversely into a second coil, thus producing an induction coil comprising at least the first and second coils. The induction range with given space formed between the first and second coils is used for electromagnetic induction to transmit signals and power energy. Such structure can be applied not only in planar handheld electronic devices, but also in other wireless power transmission systems that require narrow induction surface for power transmission.
摘要:
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.
摘要:
A high-power induction-type power supply system includes a supplying-end module consisting of a supplying-end microprocessor, a power driver unit, a signal analysis circuit, a coil voltage detection circuit, a display unit, a power supplying unit, a resonant circuit and a supplying-end coil, and a receiving-end module consisting of a receiving-end microprocessor, a voltage detection circuit, a rectifier and filter circuit, an amplitude modulation circuit, a protection circuit breaker, a voltage stabilizer circuit, a DC-DC buck converter, a resonant circuit and a receiving-end coil. By means of single bit data analysis to start up power supply, sensing signal transmitting time during standby mode is minimized. Subject to asymmetric data signal data encoding and decoding system to recognize data code, power loss is minimized during synchronous transmission of power supply and data signal, and a high capacity of fault tolerance is achieved.
摘要:
A method for forming carbon nanostructures is disclosed. The method includes the steps of: (a) synthesising a microporous template material comprising crystals having no dimension greater than about 2 μm, (b) heating the crystals in the presence of an inert gas or a mixture of an inert gas and a carbon-containing gas at a temperature of between 500° C. and 900° C., and (c) recovering carbon nanostructures by washing the heated crystals in an acid to remove the template material.
摘要:
An inductive charging method for vehicles includes a power sourcing (PS) device using a first frequency converter PS sub-module to detect a power receiving (PR) device. The PS microprocessor can compare ID codes of the PR device and check power receiving status data codes. When finding an incorrect power supply, the PS microprocessor will mark it and make other first frequency converter PS sub-modules to cut off power supply through the signal control circuit, and even adjust output power based on power status data codes from the PR device. As total voltage of the PR module is increased by series connection, it is not necessary to use components of high-voltage specifications and water cannot go into sockets, thus preventing electricity leakage. Besides, no wired connection is required and operations concerning identification, stored value or deductions can be carried out.
摘要:
A slot-type induction charger having light, thin, short and small characteristics is disclosed to include a power base holding therein a control module and a power-supplying coil module in a base member thereof for inducing an electric current, and an induction charging receiver set in the base member for receiving the induced electric current by electromagnetic induction from the power base for charging an electromagnetic device being connected to an electrical connector thereof. The power-supplying coil module and the power-receiving coil module each includes a magnetic conductor and a series of coils being alternatively and reversely wound around the magnetic conductor.
摘要:
The present invention relates to a method for identification of a light inductive charger, in which a power base includes a light receiving hole to expose a light receiver, and a light emitting component is established in a light emitter of a wireless charging receiver to emit lights towards the light receiving hole. The power base transmits electromagnetic wave energy to the receiving terminal for a short period of time when finding it covered by an object, in a dark place or covered by the wireless charging receiver after having received lights from the light receiver and transmitted the signals to the microprocessor via a voltage detection circuit. The charging module of the wireless charging receiver, if not fully charged, feeds back light signals for the same time period to indicate that charging is required. Then charging energy of electromagnetic waves will be emitted to start charging.
摘要:
A frequency modulation type wireless power supply and charger system includes a power supply base unit consisting of a first microprocessor, a power circuit, a power switch driver circuit, a first resonant circuit, a first coil, a detection module and a power input interface, and a wireless power supply and charge receiver unit consisting of a secondary coil, a second resonant circuit, a rectifier filter circuit, a detection and protection module, a second microprocessor, a temperature sensor, a charging module and a power output interface and adapted for receiving electrical power from the power supply base unit wirelessly for charging an external electronic device. The detection and protection module of the wireless power supply and charge receiver unit detects the supply of the electrical power, and the second microprocessor sends a feedback signal to the power supply base unit through the signal generator circuit and the second resonant circuit subject to the detection of the detection and protection module for enabling the power supply base unit to control the power switch driver circuit to regulate its output power automatically, thereby minimizing power transmission loss and the load of the internal components of the wireless power supply and charge receiver unit.
摘要:
Acoustic attenuation materials are described that comprise outer layers of a stiff material sandwiching a relatively soft elastic material therebetween, with means such as spheres, discs or wire mesh being provided within the elastic material for generating local mechanical resonances that function to absorb sound energy at tunable wavelengths.
摘要:
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.