OPERATING CLOCK SYNCHRONIZATION ADJUSTING METHOD FOR INDUCTION TYPE POWER SUPPLY SYSTEM

• US 20130254570A1
• Filed: 05/23/2013
• Published: 09/26/2013
• Est. Priority Date: 02/01/2011
• Status: Active Grant

• Current Assignee: Fu Da Tong Technology Co., Ltd.
• Original Assignee: Fu Da Tong Technology Co., Ltd.
• Inventors: Tsai, Ming-Chiu, Chan, Chi-Che
• Granted Patent: US 9,600,021 B2
• Time in Patent Office: Days
• US Class Current: 713/322
• CPC Class Codes: G06F 1/12 Synchronisation of different clock signals provided by a plurality of clock generators
• CPC Class Codes: G06F 1/324 by lowering clock frequency
• CPC Class Codes: G06F 1/3287 by switching off individual functional units in the computer system
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H04B 5/24 Inductive coupling
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

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.

Claims

1. An operating clock synchronization adjusting method, for an induction type power supply system, comprising:

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;

calculating a period between first data pulses corresponding to starting bits of a first data frame and a second data frame among the plurality of data frames, for acquiring a data frame period;

calculating a period between the first data pulse of the second data frame and a second data pulse of the second data frame, for acquiring a bit period; and

comparing the bit period and a bit time threshold, for determining whether to adjust the clock of the microprocessor according to the data frame period and a frame time threshold.

2. The operating clock synchronization adjusting method of claim 1, wherein the first data frame and the second data frame are continuous data frames of the plurality of data frames.

3. The operating clock synchronization adjusting method of claim 1, wherein the step of comparing the bit period and the bit time threshold, for determining whether to adjust the clock of the microprocessor according to the data frame period and the frame time threshold comprises:

adjusting the clock of the microprocessor according to the data frame period and the frame time threshold when the bit period is within an error range of the bit time threshold.

4. A synchronous data transmitting method for an induction type power supply system, comprising:

receiving, by a supplying-end module of the induction type power supply system, a plurality of data impulses of a power transmitting signal according to a first operating clock of a microprocessor in the supplying-end module, for generating a plurality of data frames, wherein the plurality of data impulses is transmitted by a receiving-end module according to a second operating clock of a microprocessor in a receiving-end module of the induction type power supply system;

calculating time periods between data impulses corresponding to start bits of the plurality of data frames, for acquiring a plurality of data frame periods;

comparing the plurality of data frame periods with a data frame time period, for synchronizing the first operating clock and the second operating clock; and

turning on a receiving function of the supplying-end module in a plurality of receiving periods and turning off the receiving function in a plurality of closed periods, wherein the plurality of receiving periods corresponds to the plurality of data impulses.

5. The synchronous data transmitting method of claim 4, wherein the step of comparing the plurality of data frame periods with the data frame time period, for synchronizing the first operating clock and the second operating clock comprises:

speeding up the first operating clock when a first data frame period of the plurality of data frame periods is greater than a data frame time threshold.

6. The synchronous data transmitting method of claim 4, wherein the step of comparing the plurality of data frame periods with the data frame time period, for synchronizing the first operating clock and the second operating clock comprises:

slowing the first operating clock when a first data frame period of the plurality of data frame periods is smaller than a data frame time threshold.

7. The synchronous data transmitting method of claim 4, wherein the step of turning on the receiving function of the supplying-end module in the plurality of receiving periods and turning off the receiving function in the plurality of closed periods comprises:

reducing a power of the power transmitting signal, by the supplying-end module, in the plurality of receiving periods.

8. The synchronous data transmitting method of claim 4, wherein the step of turning on the receiving function of the supplying-end module in the plurality of receiving periods and turning off the receiving function in the plurality of closed periods comprises:

increasing a power of the power transmitting signal, by the supplying-end module, in the plurality of closed periods.