Supplying-end module of induction type power supply system and signal detection method thereof
AssigneeFu Da Tong Technology Co., Ltd.
InventorsMing-Chiu Tsai, Chi-Che Chan
Life of this patent
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Abstract
A supplying-end module for an induction type power supply system includes a supplying-end coil, a first driver, a second driver and a signal detector. The first driver, coupled to the supplying-end coil, is used for driving the supplying-end coil to send electric power. The second driver, coupled to the supplying-end coil, is used for controlling the supplying-end coil to output a detection signal. The signal detector, coupled to the supplying-end coil, is used for detecting a reflection signal corresponding to the detection signal.
Claims20
A supplying-end module, for an induction type power supply system, the supplying-end module comprising:
- a supplying-end coil;
- a first driver, coupled to the supplying-end coil, for driving the supplying-end coil to send electric power;
- a second driver, coupled to the supplying-end coil, for controlling the supplying-end coil, allowing the supplying-end coil to output a detection signal;
- and
- a signal detector, coupled to the supplying-end coil, for detecting a reflection signal in response to the detection signal.
A signal detection method, for a supplying-end module of an induction type power supply system, the supplying-end module comprising a supplying-end coil, the signal detection method comprising:
- controlling the supplying-end coil to suspend electric power output by controlling a first driver to temporarily stop driving the supplying-end coil;
- using a second driver to drive the supplying-end coil to resonate during a period where the electric power output of the supplying-end coil is suspended;
- detecting a coil signal of the supplying-end coil to obtain a peak voltage level of the coil signal;
- setting a reference voltage to a level equal to the peak voltage level minus a predefined voltage;
- the second driver suspending driving the supplying-end coil and resuming driving the supplying-end coil by a specific number of times, to output a detection signal;
- and
- comparing the reference voltage with the coil signal to determine whether a reflection signal corresponding to the detection signal is received after outputting the detection signal.
Dependencies are inferred from the claim text.