Bi-phase Decoding for Stable Inductive Power Transmission
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Solution Overview
Problem
Conventional high-power induction-type power supply systems face instability in data code transmission during synchronous charging and data transmission operations due to load characteristic changes between the supplying-end and receiving-end modules, leading to potential overheating and interruption of charging operations.
Innovation Solution
A high-power induction-type power supply system with a bi-phase decoding method, utilizing a supplying-end microprocessor with built-in comparators and a shunt resistor unit for accurate data signal decoding, along with a receiving-end module featuring a voltage stabilizer circuit and amplitude modulation, ensures stable data signal transmission even at full load, minimizing power loss and preventing overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional data transmission methods are used in induction power supply systems, then power transmission can be achieved, but data code transmission becomes unstable during synchronous charging and data transmission operations due to load characteristic changes
Solution Approach 1:
The patent inverts the conventional single-phase decoding approach by implementing bi-phase decoding methodology. Instead of decoding data during the entire cycle, the system specifically decodes during the negative half-cycle when load characteristics are more stable, thereby resolving the instability caused by load variations during synchronous charging and data transmission
Solution Approach 2:
The system performs preliminary identification of the negative half-cycle and prepares the decoding circuit accordingly. By anticipating the stable period in the AC waveform and pre-configuring the decoding timing, the system ensures reliable data extraction before load variations can affect transmission stability
2Power
If high power transmission is implemented in induction-type power supply systems, then charging speed is improved, but overheating and operational instability occur
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors the decoding status and power transmission parameters. When full load conditions are detected, the bi-phase decoding method provides accurate feedback signals that allow the system to adjust power levels and prevent overheating, thereby maintaining stable operation at high power transmission levels
Solution Approach 2:
The system utilizes the periodic nature of AC waveforms to implement duty-cycled power transmission. By concentrating data decoding during specific phases (negative half-cycle) and modulating power delivery accordingly, the system achieves efficient heat management while maintaining high power transmission capability during charging
3Adaptability or versatility
If load at the power output terminal changes, then power delivery flexibility is improved, but data code transmission becomes inaccurate and unstable
Solution Approach 1:
The patent applies local quality by creating different operational characteristics for different phases of the AC cycle. During the negative half-cycle, the system optimizes for stable decoding conditions with reduced sensitivity to load changes, while allowing greater power flexibility during other phases. This localized optimization resolves the conflict between power flexibility and decoding accuracy
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves reliable and stable data code decoding during full load conditions, ensuring continuous and efficient power transmission while preventing overheating, thus enhancing the operational stability and reliability of the charging process.
Implementation Method 1
wireless induction power supply systems commonly use two coils, one for emitting power supply and the other for receiving power supply
Implementation Method 2
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, a supplying-end coil
Data Source
AI summary
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, a supplying-end coil and a shunt resistor unit, 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. Subject to time series arrangement, the high-power induction-type power supply system allows transmission of data signal in a stable manner during a charging operation, assuring system operation stability and low power loss. By means of bi-phase decoding, data code is accurately decoded when the receiving-end module is at full load, ensuring system operating reliability.