Method for automatic power adjustment of high-power induction type power supply

Abstract

The invention relates to a method for automatic power adjustment of a high-power induction type power supply. A power supply module of the power supply is characterized in that a power supply microcontroller is electrically connected with a power supply drive unit, a signal analyzing circuit, a coil voltage detecting circuit, a display unit, a power supply unit and a power supply ground terminal, the power supply drive unit is electrically connected with a resonance circuit and a power supply coil, the power supply coil is used for inducing a power receiving coil of a power receiving module to transmit power supply and data signals, and a power receiving microcontroller of the power receiving module is electrically connected with a voltage detecting circuit, a breakage protection circuit, a voltage stabilizing circuit, an amplitude-modulated carrier modulation circuit, a direct current step-down transformer and rectifying filter circuit and a resonance circuit. By synchronous transmission of power supply and data signals between the power supply module and the power receiving module and using data codes to build an automatic power adjusting program inside through the processors, power transmitted from the power supply module to the power receiving module can be corrected, and automatic power adjustment of the power receiving module can be achieved.

Description

technical field [0001] The present invention provides a method for automatically adjusting power in a high-power inductive power supply, especially for power adjustment by transmitting data signals through induction. When the power supply module and the power receiving module transmit power and data signals synchronously, the power supply module After the sensor receives the data signal, it automatically analyzes, processes and automatically adjusts the power. Background technique [0002] The inductive power supply (or wireless charger) currently on the market uses two coils, one of which is used as the power supply end for transmitting power, and the other is used as the power receiving end for receiving power. The energy is dangerous and will heat metal objects. The principle is like an induction cooker, and it also affects the phenomenon that the charged object is easily damaged or malfunctioned due to heat. [0003] In the inductive power supply, in order to operate sa...

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Problems solved by technology

[0002] The inductive power supply (or wireless charger) currently on the market uses two coils, one of which is used as the power supply end for transmitting power, and the other is used as the power receiving end for receiving power. The energy is dangerous and will heat metal objects. The principle is like an induction cooker, and it also affects the phenomenon that the charged object is easily damaged or malfunctioned due to heat.

[0003] In the inductive power supply, in order to operate safely, the power supply terminal and the power receiving terminal must be able to identify each other before starting to supply power. That is, under the requirements of this function, it is necessary to establish control between the power supply terminal and the power receiving terminal. The method of data code transmission, and the transmission function of the data code must be quite stable, so that the power transmission can operate stably, and in the known inductive charging system, the inductive power supply can only be connected between the power supply coil and the power receiving coil When the relative distance between the coils is changed, the output power of the power supply cannot be effectively changed so that the receiving end can receive stable energy, so when the distance between the relative positions of the coils changes, it will not be able to transmit limits

In addition, in the high-power inductive power supply, the output power will be increased or reduced due to the change of the output demand of the receiving end, and the demand for changing the power of the receiving end needs to be adjusted by operating the power supply end through wireless induction. , since there is no physical signal line connection, it will be quite difficult to control

[0004] Therefore, how to solve the problem of safe power transmission in the existing electronic devices when inductively transmitting power and the lack of a limited coil induction range, and the power cannot be changed according to the demand of the receiving end during power supply, so that the transmission power is too large resulting in poor efficiency or The transmission power is too small, which is troubled by the insufficient output of the power terminal, which is the direction that relevant manufacturers in this industry want to study and improve.

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