TW202102029A - Resonance driven control circuit, method and electronic system - Google Patents
Resonance driven control circuit, method and electronic system Download PDFInfo
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本發明是關於諧振驅動之控制技術,尤其是關於一種諧振驅動之控制電路、控制方法以及電子裝置。The present invention relates to the control technology of resonance driving, and more particularly to a control circuit, control method and electronic device of resonance driving.
無線通訊可使兩個電子裝置在不需要實體接觸的情形下,即可交換資訊。以常見的近場無線通訊(near-field communication;NFC)為例,其可藉由一套通訊協定,讓兩個電子裝置在特定距離之內進行通訊。Wireless communication allows two electronic devices to exchange information without physical contact. Take the common near-field communication (NFC) as an example. It can communicate with two electronic devices within a certain distance through a set of communication protocols.
然而,部分無線通訊的技術中,必須要由第一方的電子裝置不停地發射搜尋的訊號,以使第二方的電子裝置接收到搜尋的訊號後予以回應,再由第一方的電子裝置根據回應執行功能。然而,對於第一方的電子裝置來說,這樣的通訊方式並無法使其內部的元件休眠,而必須不停產生搜尋訊號,相當耗費功率。However, in some wireless communication technologies, it is necessary for the electronic device of the first party to continuously transmit the search signal so that the electronic device of the second party responds after receiving the search signal, and then the electronic device of the first party The device performs functions based on the response. However, for the first-party electronic device, such a communication method cannot make its internal components sleep, and must generate search signals continuously, which consumes power.
鑑於先前技術的問題,本發明之一目的在於提供一種諧振驅動之控制電路、控制方法以及電子裝置,以改善先前技術。In view of the problems of the prior art, one object of the present invention is to provide a control circuit, a control method and an electronic device for resonant driving to improve the prior art.
本發明之一目的在於提供一種諧振驅動之控制電路、控制方法以及電子裝置,以被動式地感測外部諧振刺激行為,並據以控制功能電路,達到節省耗能的功效。One objective of the present invention is to provide a control circuit, a control method and an electronic device for resonant driving to passively sense external resonant stimulation behavior and control the functional circuit accordingly to achieve the effect of saving energy.
本發明包含一種諧振驅動之控制電路,其一實施例包含:諧振電路以及偵測電路。諧振電路配置以被動地感測外部諧振刺激行為,以產生電子訊號。偵測電路電性耦接於諧振電路,並配置以在偵測到電子訊號由於外部諧振刺激行為產生之功率變化及/或頻率變化時,產生控制訊號至功能電路,以控制功能電路。The present invention includes a resonant drive control circuit, and one embodiment includes: a resonant circuit and a detection circuit. The resonant circuit is configured to passively sense the external resonant stimulation behavior to generate an electronic signal. The detection circuit is electrically coupled to the resonant circuit and is configured to generate a control signal to the functional circuit to control the functional circuit when the power change and/or frequency change of the electronic signal due to the external resonant stimulation behavior is detected.
本發明另包含一種諧振驅動之控制方法,其一實施例包含下列步驟:使諧振電路被動地感測外部諧振刺激行為,以產生電子訊號;使電性耦接於諧振電路之偵測電路偵測到電子訊號由於外部諧振刺激行為產生之功率變化及/或頻率變化;以及使偵測電路產生控制訊號至功能電路,以控制功能電路。The present invention further includes a control method of resonance driving. One embodiment of the method includes the following steps: making the resonance circuit passively sense the external resonance stimulation behavior to generate an electronic signal; making the detection circuit electrically coupled to the resonance circuit detect To the power change and/or frequency change of the electronic signal due to the external resonance stimulation behavior; and to make the detection circuit generate a control signal to the functional circuit to control the functional circuit.
本發明再包含一種諧振驅動之電子裝置,其一實施例包含:功能電路以及控制電路。控制電路電性耦接於功能電路,並包含:諧振電路以及偵測電路。諧振電路配置以被動地感測外部諧振刺激行為,以產生電子訊號。偵測電路電性耦接於諧振電路,並配置以在偵測到電子訊號由於外部諧振刺激行為產生之功率變化及/或頻率變化時,產生控制訊號至功能電路,以控制功能電路。The present invention further includes an electronic device driven by resonance, an embodiment of which includes a functional circuit and a control circuit. The control circuit is electrically coupled to the functional circuit and includes: a resonance circuit and a detection circuit. The resonant circuit is configured to passively sense the external resonant stimulation behavior to generate an electronic signal. The detection circuit is electrically coupled to the resonant circuit and is configured to generate a control signal to the functional circuit to control the functional circuit when the power change and/or frequency change of the electronic signal due to the external resonant stimulation behavior is detected.
有關本發明的特徵、實作與功效,茲配合圖式作較佳實施例詳細說明如下。With regard to the features, implementation and effects of the present invention, preferred embodiments are described in detail as follows in conjunction with the drawings.
本發明之一目的在於提供一種諧振驅動之控制電路、控制方法以及電子裝置,以被動式地感測外部諧振刺激行為,並據以控制功能電路,達到節省耗能的功效。One objective of the present invention is to provide a control circuit, a control method and an electronic device for resonant driving to passively sense external resonant stimulation behavior and control the functional circuit accordingly to achieve the effect of saving energy.
請參照圖1。圖1為本發明之一實施例中,一種電子裝置100的方塊圖。電子裝置100包含:功能電路110以及控制電路120。Please refer to Figure 1. FIG. 1 is a block diagram of an
於一實施例中,功能電路110可執行至少一特定功能。控制電路120配置以根據諧振驅動,進而產生控制訊號CON控制功能電路110執行至少一特定功能。In one embodiment, the
舉例而言,於一應用情境中,電子裝置100可為例如,但不限於具有觸控面板的電子裝置例如平板電腦或智慧型手機。功能電路110為平板電腦或智慧型手機中的處理器。控制電路120電性耦接於功能電路110,並可根據諧振被動地被驅動,進而產生控制訊號CON喚醒處理器或是使處理器進行相應的資料處理。For example, in an application scenario, the
於另一應用情境中,電子裝置100可為例如,但不限於無線充電裝置。功能電路110為無線充電裝置中的充電模組。控制電路120可根據諧振被動地驅動,進而產生控制訊號CON使充電模組對外部的電子裝置進行充電。In another application scenario, the
上述的應用情境僅為可能的兩種實施方式。於其他實施例中,電子裝置100亦可適用於其他的應用情境中。The above application scenarios are only two possible implementations. In other embodiments, the
以下將針對控制電路120的結構及運作方式進行更詳細的說明。The structure and operation of the
請參照第2圖。第2圖為本發明一實施例中,電子裝置100中諧振驅動的控制電路120的方塊圖。Please refer to Figure 2. FIG. 2 is a block diagram of the
控制電路120電性耦接於處理器,並包含:諧振電路200以及偵測電路210。The
諧振電路200配置以被動地感測外部諧振刺激行為,以產生電子訊號ES。The
於一實施例中,諧振電路200至少包含一容感電路,例如但不限於圖2中所繪示,包含相並聯的電容C以及電感L的容感電路。諧振電路200可選擇性地包含其他的電路元件,例如但不限於圖2中所繪示,與電容C以及電感L相串聯並用以穩壓的二極體D。需注意的是,於其他實施例中,諧振電路200亦可包含例如電阻、其他電容或其他電感,並以各種並聯與串聯的形式相電性耦接。In one embodiment, the
因此,包含容感電路的諧振電路200,將可在外部諧振刺激行為發生時,進行諧振而產生電子訊號ES。其中,外部諧振刺激行為可由一個外部電子裝置150進行。Therefore, the
外部電子裝置150可包含用以產生外部諧振刺激行為的諧振刺激電路160。於一實施例中,諧振刺激電路160可為無線訊號發射元件,並可藉由此無線訊號發射元件主動發射具有狀態變化且帶有頻率之無線訊號WS。其中,無線訊號發射元件可為例如,但不限於藍芽或是射頻元件。因此,由無線訊號發射元件所發射的無線訊號WS可為例如,但不限於藍芽訊號或是射頻訊號。The external
於一實施例中,無線訊號WS可為正弦波、三角波或方波的形式。無線訊號WS所具有的狀態變化,可為相位變化、頻率變化、載波變化或其組合。In an embodiment, the wireless signal WS may be in the form of a sine wave, a triangle wave, or a square wave. The state change of the wireless signal WS can be a phase change, a frequency change, a carrier change, or a combination thereof.
偵測電路210電性耦接於諧振電路200,並配置以偵測電子訊號ES是否產生功率變化及/或頻率變化。當偵測電路210偵測到電子訊號ES由於外部諧振刺激行為所產生的功率變化及/或頻率變化,將產生控制訊號CON至功能電路110,以控制功能電路110。The
舉例而言,在一應用情境中,當電子裝置100為具有觸控面板的電子裝置,功能電路110為處理器,且外部電子裝置150為包含無線訊號發射元件的觸控筆時,無線訊號發射元件可主動發射具有狀態變化且帶有頻率之無線訊號WS。諧振電路200將由於無線訊號WS產生的外部諧振刺激行為,進行諧振而產生電子訊號ES。偵測電路210進一步偵測到電子訊號ES由於外部諧振刺激行為所造成的功率變化及/或頻率變化,進而產生控制訊號CON以喚醒處理器或是使處理器進行相應的資料處理。For example, in an application scenario, when the
而在另一應用情境中,當電子裝置100為無線充電裝置,功能電路110為無線充電裝置中的充電模組,且外部電子裝置150為包含無線訊號發射元件的待充電裝置時,無線訊號發射元件可主動發射具有狀態變化且帶有頻率之無線訊號WS。諧振電路200將由於無線訊號WS產生的外部諧振刺激行為,進行諧振而產生電子訊號ES。偵測電路210進一步偵測到電子訊號ES由於外部諧振刺激行為所產生的功率變化及/或頻率變化,進而產生控制訊號CON以使充電模組對外部的電子裝置進行充電。In another application scenario, when the
於另一實施例中,外部電子裝置150所包含用以產生外部諧振刺激行為的諧振刺激電路160可為外部諧振電路。外部諧振電路可具有類似諧振電路200的結構,至少包含容感電路,亦可選擇性包含其他電路元件。當外部電子裝置150與控制電路120的實體位置接近時,將可使諧振刺激電路160與諧振電路200產生諧振,進一步產生對應的感應電動勢,進而產生電子訊號ES。In another embodiment, the
在這樣的狀況下,偵測電路210亦可偵測電子訊號ES是否產生功率變化及/或頻率變化。當偵測電路210偵測到電子訊號ES由於外部諧振電路接近諧振電路200產生的外部諧振刺激行為所產生的功率變化及/或頻率變化時,將產生控制訊號CON至功能電路110,以控制功能電路110。In such a situation, the
舉例而言,在一應用情境中,當電子裝置100為具有觸控面板的電子裝置,功能電路110為處理器,且外部電子裝置150為包含外部諧振電路的觸控筆時,外部諧振電路可在接近諧振電路200產生外部諧振刺激行為。諧振電路200將由於外部諧振電路的接近產生的外部諧振刺激行為,進行諧振而產生電子訊號ES。偵測電路210進一步偵測到電子訊號ES由於外部諧振刺激行為所造成的功率變化及/或頻率變化,進而產生控制訊號CON以喚醒處理器或是使處理器進行相應的資料處理。For example, in an application scenario, when the
而在另一應用情境中,當電子裝置100為無線充電裝置,功能電路110為無線充電裝置中的充電模組,且外部電子裝置150為包含外部諧振電路的待充電裝置時,外部諧振電路可在接近諧振電路200產生外部諧振刺激行為。諧振電路200將由於外部諧振電路的接近產生的外部諧振刺激行為,進行諧振而產生電子訊號ES。偵測電路210進一步偵測到電子訊號ES由於外部諧振刺激行為所造成的功率變化及/或頻率變化,進而產生控制訊號CON以使充電模組對外部的電子裝置進行充電。In another application scenario, when the
由於諧振電路200是被動地感測外部諧振刺激行為來產生電子訊號ES,再由偵測電路210偵測電子訊號ES由於外部諧振刺激行為所產生的功率變化及/或頻率變化。因此,偵測電路210在諧振電路200並未感測到外部諧振刺激行為時,可以處於休眠狀態。於一實施例中,休眠狀態為位於例如,但不限於休眠(suspend)、睡眠(sleep)或待命(standby)的模式下。Since the
綜合上述,本實施例中諧振驅動之控制電路120可藉由諧振電路200被動式地感測外部諧振刺激行為來產生電子訊號ES,並使偵測電路210偵測電子訊號ES的功率變化及/或頻率變化產生控制訊號CON,以控制功能電路110。因此,偵測電路210不需持續耗費功率發射偵測訊號來確認外部電子裝置的存在,達到節省耗能的功效。In summary, the resonance
需注意的是,上述的應用情境僅為可能的兩種實施方式。於其他實施例中,電子裝置100亦可適用於其他的應用情境中。It should be noted that the above application scenarios are only two possible implementations. In other embodiments, the
請參照圖3。圖3為本發明一實施例中,一種諧振驅動之控制方法300的流程圖。Please refer to Figure 3. FIG. 3 is a flowchart of a
除前述裝置外,本發明另揭露一種控制方法300,控制方法300應用於例如,但不限於圖2的控制電路120中。控制方法300之一實施例如圖3所示,包含下列步驟:In addition to the aforementioned devices, the present invention also discloses a
S310:使諧振電路200被動地感測外部諧振刺激行為,以產生電子訊號ES;S310: Enable the
S320:使電性耦接於諧振電路200之偵測電路210偵測到電子訊號ES由於外部諧振刺激行為產生之功率變化及/或頻率變化;S320: Make the
S330:使偵測電路210產生控制訊號CON至功能電路110,以控制功能電路。S330: Make the
需注意的是,上述的實施方式僅為一範例。於其他實施例中,本領域的通常知識者當可在不違背本發明的精神下進行更動。It should be noted that the above implementation is only an example. In other embodiments, those skilled in the art can make changes without departing from the spirit of the present invention.
綜合上述,本發明中的諧振驅動之控制電路、控制方法以及電子裝置,可由諧振電路被動式地感測外部諧振刺激行為產生電子訊號,並由偵測電路偵測電子訊號由於外部諧振刺激行為之功率變化及/或頻率變化,並據以產生控制訊號控制功能電路,達到節省耗能的功效。In summary, the control circuit, control method and electronic device of the resonance drive of the present invention can passively sense the external resonance stimulation behavior by the resonance circuit to generate an electronic signal, and the detection circuit detects the power of the electronic signal due to the external resonance stimulation behavior Change and/or frequency change, and generate control signal control function circuit accordingly to achieve the effect of saving energy.
雖然本發明之實施例如上所述,然而該些實施例並非用來限定本發明,本技術領域具有通常知識者可依據本發明之明示或隱含之內容對本發明之技術特徵施以變化,凡此種種變化均可能屬於本發明所尋求之專利保護範疇,換言之,本發明之專利保護範圍須視本說明書之申請專利範圍所界定者為準。Although the embodiments of the present invention are as described above, these embodiments are not used to limit the present invention. Those skilled in the art can make changes to the technical features of the present invention based on the explicit or implicit content of the present invention. All such changes may belong to the scope of patent protection sought by the present invention. In other words, the scope of patent protection of the present invention shall be subject to the scope of the patent application in this specification.
100:電子裝置 110:功能電路 120:控制電路 150:外部電子裝置 160:諧振刺激電路 200:諧振電路 210:偵測電路 300:控制方法 C:電容 CON:控制訊號 D:二極體 ES:電子訊號 L:電感 WS:無線訊號 S310~S330:步驟100: electronic device 110: functional circuit 120: control circuit 150: External electronic device 160: resonance stimulation circuit 200: Resonant circuit 210: detection circuit 300: control method C: Capacitance CON: Control signal D: Diode ES: Electronic signal L: Inductance WS: wireless signal S310~S330: steps
[圖1]顯示本發明之一實施例中,一種電子裝置的方塊圖; [圖2]顯示本發明之一實施例中,電子裝置中諧振驅動的控制電路的方塊圖。 [圖3]顯示本發明之一實施例中,一種諧振驅動之控制方法的流程圖。[Figure 1] shows a block diagram of an electronic device in an embodiment of the present invention; [Figure 2] shows a block diagram of a control circuit for resonance driving in an electronic device in an embodiment of the present invention. [Figure 3] shows a flow chart of a control method for resonant driving in an embodiment of the present invention.
120:控制電路 120: control circuit
200:諧振電路 200: Resonant circuit
210:偵測電路 210: detection circuit
C:電容 C: Capacitance
CON:控制訊號 CON: Control signal
D:二極體 D: Diode
ES:電子訊號 ES: Electronic signal
L:電感 L: Inductance
WS:無線訊號 WS: wireless signal
Claims (19)
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