TW573394B - Detection device of motor rotation speed and control method - Google Patents

Detection device of motor rotation speed and control method Download PDF

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Publication number
TW573394B
TW573394B TW90130260A TW90130260A TW573394B TW 573394 B TW573394 B TW 573394B TW 90130260 A TW90130260 A TW 90130260A TW 90130260 A TW90130260 A TW 90130260A TW 573394 B TW573394 B TW 573394B
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Taiwan
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speed
frequency
motor
preset
item
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TW90130260A
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Chinese (zh)
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Chuan-Fa Chen
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Twinhead Int Corp
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發明領域 本案係為一種馬達轉速偵測裝置與控制方法,尤指 種應用於可攜式電腦之馬達轉速偵測裝置與控制方法。曰 發明背景 由於疋件積集化程度與日倶增,散熱是現今所有電子 裝置之重大課題,以可攜式電腦為例,内部高速運行 體電路晶片所產生出之熱量,若未能有效予以散熱, 重影響系統之穩定性,其中散熱風扇係為可攜式電俨中、= 用最多且不可或缺之主動散熱元件。請參見第—圖自其^ 可被一脈衝寬度調變(ρ^Μ )信號所控制之習用散熱風、糸 功能方塊示意圖,其主要由風扇馬達丨〇與轉速輪出、模$組1 所構成’當系統於風扇馬達1〇之第一端1〇1 (電源端 鱼 第二端102 (接地端)間提供一脈衝寬度調變信號(如^ 二圖(a )所不)時,該風扇馬達丨〇便因應該脈衝 變虎之頻率與工作周期(duty cycle)來改變其輳、亲 而轉速輸出模組11則因應該風扇馬達1〇之轉速而輪 f ’ 波信號(如第二圖(b )所示),而該方波信號之頻方 與該轉速成正比。而由圖中可清楚看出,由於電路加,、 配置,轉速輸出模組丨丨之電力亦為該脈衝寬度調變=== 提供,故僅能於該脈衝寬度調變信號處於高態時 = 波信號,因此無法全程監控散熱風扇之轉速變&,這;;於FIELD OF THE INVENTION The present invention relates to a motor speed detection device and control method, and more particularly to a motor speed detection device and control method applied to a portable computer. Background of the Invention Due to the increase in the level of accumulation of files and the increase in heat dissipation, heat dissipation is a major issue for all electronic devices today. Taking a portable computer as an example, the heat generated by the internal high-speed operation of the body circuit chip is not effectively treated. Heat dissipation affects the stability of the system. The cooling fan is an active cooling element that is the most commonly used and indispensable in portable batteries. Please refer to the figure—Since ^ can be controlled by a pulse width modulation (ρ ^ Μ) signal of conventional cooling wind, 糸 function block diagram, which is mainly by the fan motor 丨 〇 and the speed wheel out, the module $ group 1 Configuration 'When the system provides a pulse width modulation signal between the first terminal 101 (the power terminal and the second terminal 102 (ground)) of the fan motor 10 (as shown in the second figure (a)), the The fan motor 丨 〇 will change its frequency due to the frequency and duty cycle of the pulse, and the speed output module 11 will rotate the f 'wave signal (such as the second (B), and the frequency of the square wave signal is directly proportional to the speed. As can be clearly seen from the figure, the power of the speed output module 丨 丨 is also due to the circuit Width modulation === provided, so only when the pulse width modulation signal is high = wave signal, so it is not possible to monitor the speed change of the cooling fan &this;

第5頁 573394 五 ⑵ __________ 2風扇轉速與環境溫度來改變該脈衝 產 4 (duty cycle )之系統而言,將 ^度调變信號工作 .生誤差,嚴重影響系統對於;扇轉時間不固定而 “、、法於散熱效率與風扇噪音、、^ 曰 < 精密控制,進而 何改善上述習用手段之缺失 ==間達成平衡,而如 係為發展本案之主要目的。 發明概述 本案係為一種馬達轉速偵測 度調變信號進行轉速控制 含·· 一第一輸入端與一第 三輸入端 接收由該 馬達之轉 第二接腳 信號;以 系統間, 根據 達與該系 本案 固定電壓 ,電連接 源與接 至該馬 系統所發出之該 速;一轉速輸出 ,其係因應該馬 及一轉速輸出端 轉速信 之一馬 —輸入 地點, 達與該 脈衝寬 模組, 達之旋 ,電連 號輸出 馬達轉 裝置,應 達上與一 端,該等 用以持續 糸統間, 度調變信 電連接於 轉速度而 接至該轉 至該系統 速偵測裝 用於以一脈衝茛 系統間 輸入端 輸入電 該輸入 號,進 ’其包 係固定電 力;一第 端係用以 而控制該 該第一接腳與 其係將該 上述構想,本案 統係分別為一散熱風扇馬達與一 之另一方面係為一種馬達轉速控 持續輸 速輸出 〇 置所應 可攜式 制方法 出一轉速 模組與該 用之該馬 電腦。 ,應用於 一馬達上與一糸統間,5亥系統係輸出一頻率與工作周期皆 可變化之脈衝寬度調變信號至該馬達以控制其轉速,其包 含下列步驟:設定該馬達之一第一預設轉速以及對應出相Page 5 573394 Five __________ 2 fan speed and ambient temperature to change the pulse cycle (duty cycle) of the system, the ^ degree modulation signal will work. Errors will seriously affect the system; fan rotation time is not fixed and ",, the method of heat dissipation efficiency and fan noise, and" precision control, how to improve the lack of conventional means = = to achieve a balance between, and if the main purpose of the development of this case. Summary of the invention is a motor Speed detection signal for speed control includes a first input terminal and a third input terminal to receive the signal from the motor to the second pin; between the systems, according to the fixed voltage of this case, Connect the source and the speed sent by the horse system; a speed output, which is a horse that responds to the horse and a speed signal at the speed output end-the input location, and the pulse width module, the rotation speed, and the electrical connection No. output motor rotation device should reach up and one end. These are used to continuously adjust the speed of the electrical connection to the speed of the system and connect to the speed detection of the system. It is used for inputting the input number through the input terminal of a pulse buttercup system, and its package is fixed power; a first terminal is used to control the first pin and it is to conceive the above concept. For a cooling fan motor and another aspect, it is a motor speed control and continuous transmission speed output. A portable method for producing a speed module and the horse computer used in the application are applied to a motor and In general, the 5H system outputs a pulse width modulation signal with a frequency and a duty cycle that can be changed to the motor to control its speed. It includes the following steps: setting a first preset speed of the motor and corresponding phase

第6頁 573394 五、發明說明(3) 對於該第一預設轉速之該脈衝寬度調變信號之一第一頻 率,該第一頻率為該第一預設轉速之倍頻;對該馬達進行 一學習稃序,該系統依序輸入固定於一測試頻率但工作周 期不同之脈衝寬度調變信號至該馬達並依序記錄其轉速’ 進而完成一工作周期相對於轉速之對照表;以及根據該第 一預設轉速以及該對照表而對應出一第一工作周期’該糸 統便輸出一固定於該第一頻率與該第一工作周期之脈衝寬 度調變信號至該馬達,進而使該馬達以該第一預設轉速進 行運轉。 根據上述構想,本案馬達轉速控制方法中該測試頻率 不等於該第一頻率以及該第一頻率之倍頻。 根據上述構想,本案馬達轉速控制方法中更包含下列 步驟:設定該馬達之一第二預設轉速以及對應出相對於該 第二預設轉速之該脈衝寬度調變信號之一第二頻率,該第 二頻率為該第二預設轉速之倍頻;以及根據該第二預設轉 速與該對照表而對應出一第二工作周期,該系統便輸出一 固定於該第一頻率與該第二工作周期之脈衝寬度調變信號 至該馬達,進而使該馬達以該第二預設轉速進行運轉。 根據上述構想’本案馬達轉速控制方法中該測試頻率 不等於該第二頻率以及該第二頻率之倍頻。 根據^述構想,本案馬達轉速控制方法中於該學習程 序中,该系統依序輸入固定於一測試頻率但工作周期由 100//。往下遞減變化4 %之脈衝寬度調變信號至該馬達並依 序記錄其轉速,進而完成該玉作周期相對於轉速之對照Page 6 573394 V. Description of the invention (3) For a first frequency of the pulse width modulation signal of the first preset speed, the first frequency is a multiple of the first preset speed; Upon learning sequence, the system sequentially inputs a pulse width modulation signal fixed to a test frequency but with a different duty cycle to the motor and sequentially records its speed 'to complete a comparison table of the duty cycle to speed; and according to the The first preset speed and the look-up table correspond to a first duty cycle. The system outputs a pulse width modulation signal fixed to the first frequency and the first duty cycle to the motor, so that the motor Run at the first preset speed. According to the above concept, the test frequency in the motor speed control method of the present case is not equal to the first frequency and a multiple of the first frequency. According to the above idea, the method for controlling the rotation speed of the motor in this case further includes the following steps: setting a second preset rotation speed of the motor and corresponding to a second frequency of the pulse width modulation signal relative to the second preset rotation speed, the The second frequency is a multiple of the second preset speed; and a second duty cycle corresponding to the second preset speed and the lookup table, the system outputs a fixed frequency at the first frequency and the second The pulse width modulation signal of the duty cycle is transmitted to the motor, so that the motor is operated at the second preset speed. According to the above-mentioned concept, the test frequency in the motor speed control method of the present case is not equal to the second frequency and a multiple of the second frequency. According to the concept described in the motor speed control method in this case, in the learning program, the system sequentially inputs a fixed frequency at a test frequency but the duty cycle is 100 //. Decrease the pulse width modulation signal of 4% downward to the motor and record its speed in sequence, and then complete the comparison of the jade cycle with the speed

573394 五、發明說明(4) 表。 根據上 達與該系統 根據上 速係由/馬 輸入端與一 定電壓源與 電連接炱該 統所發出之 速;一轉速 腳,其係因 以及一轉速 述構想 係分別 述構想 達轉速 第二輸 接地點 馬達與 該脈衝 輸出模 應該馬 輸出端 間,其係將該轉速 ’本案馬達轉速控制方 為一散熱風扇馬達與一 ’本案馬達轉速 偵測裝置所輸出 入端,該等輸入 ’用以持續輸入 該系統間,該輸 寬度調變信號, 組’電連接於該 達之旋轉速度而 ’電連接至該轉 信號輪出至該系 本案之又一方面係為一種晶片 系統中之一 片表面,用 一脈衝寬度 片周圍空氣 輸入端係固 輸入電力; 間,該輸入 變信號,進 f連接於該 <旋轉速度 晶片上 以增強 調變信 之流動 定電連 一第三 端係用 ,該裝 該晶片 置包含: 之散熱效 控制方 ’該裝 端係固 電力; 入端係 進而控 第一接 持續輸 速輸出 統。 散熱裝 一散熱 率;一 法所應用之該馬 可攜式電腦。 法中該馬達之轉 置包含:〆第一 定電連接奚一固 一第三輪入端’ 用以接收由該系 制該馬達之轉 腳與一第二接 出'^轉速信邊, 模組與該系統 號之驅動而進行運轉, 輸入端與一第 ;一第 接至一 輸入端 以接收 而控制該散熱 第一接腳與一 而持續輸出一 固定電壓 ’電連接 由該系統 風扇之轉 第二接腳 轉速信號 源與接 至該散 所發出 速;一 置,應 片,接 散熱風 用以加 二輸入 地點, 熱風扇 之該脈 轉速輸 ,其係因應該 ;以及一轉速 用於以— 觸於該晶 扇,其受 速該散熱 端,該等 用以持續 與該系統 衝寬度調 出模組, 散熱風扇 輸出端,573394 V. Description of invention (4) Table. According to Shangda and the system according to the upper speed system, the / horse input terminal and a certain voltage source are electrically connected to the speed issued by the system; a speed foot, its cause, and a speed description concept are described respectively. Between the ground point motor and the output terminal of the pulse output module, the speed is controlled by the motor speed of the case as a cooling fan motor and a motor input and output end of the motor speed detection device of the case. Continuously input between the system, the input width modulation signal, the group 'electrically connected to the rotation speed and' electrically connected to the turn signal wheel out to another aspect of this case is a chip system in a chip surface The air input terminal around a pulse width chip is used to fasten the input power; at the same time, the input variable signal is connected to the < rotation speed chip to enhance the flow of the modulation signal. The installation of the chip includes: a thermal efficiency control party 'the end is fixed to electricity; the input end further controls the first continuous output speed output system. Cooling device: a cooling rate; the method used in this horse portable computer. The transposition of the motor in the method includes: "first fixed electrical connection"-a fixed third wheel input end "to receive the motor's rotating foot and a second connection" ^ speed letter edge, mold The group and the system number are driven to operate, the input terminal is connected to a first terminal; a first terminal is connected to an input terminal to receive and control the heat-dissipating first pin and a continuous output of a fixed voltage; an electrical connection is provided by the system fan Turn the second pin speed signal source and connect to the speed of the fan; one set, should be used, and connected to the cooling air to add two input locations, the pulse speed of the heat fan is input, which is based on; and one speed In order to touch the crystal fan, it is subject to the heat dissipation terminal, which is used to continuously call out the module and the cooling fan output terminal,

第8頁 /^394 五電發:說“ 輪出至^該轉速輸出模組與該系統間,其係將該轉速信號 嗓系統。 為〜ΐ ί i述構想,本案晶片散熱裝置所應用之該系統係 、式電腦。 制方ϊίίΐ構;驟本案晶片散熱裝置中散熱風扇轉速控 以及對應L :楚設疋該散熱風扇之-第-預設轉速 之〜苐二頻』對於=一一預設轉速之該脈衝寬度調變信號 該散熱風戶该二頻率為該第—預設轉速之倍頻;對 試頰率2屬進行一學習程序,該系統依序輸入固定於一測 並依序記:t周期不同之脈衝寬度調變信號至該散熱風扇 照表;以2S 3篦進而完成一工作周期相對於轉速之對 第一工你i據第一預設轉速以及該對照表而對應出一 -工作:f期’該系統便輪出-固定於該第-頻率與該第 散埶2 脈 度調變信號至該散熱風扇,進而使該 政熱風扇以該第一預設轉速進行運轉。 根據上述構想’其測試頻率不等於該第一頻率以及該 第一頻率之倍頻。 根據上述構想’其中該散熱風扇轉速控制方法更包含 下列步驟·叹疋邊散熱風扇之一第二預設轉速以及對應出 相對於該第二預設轉速之該脈衝寬度調變信號之一第二頻 率,該第二頻率為該第二預設轉速之倍頻;以及根據該第 二預設轉速與該對照表而對應出一第二工作周期,該系統 便輸出一固定於該第—頻率與該第二工作周期之脈衝寬度 調變信號至該散熱風屬,進而使該散熱風扇以該第二預設Page 8 / ^ 394 Wudianfa: Say "Between the rotation speed output module and the system, it is the rotation speed signal system. For the concept described above, the chip heat sink device used in this case is applied The system is a computer. The manufacturing method is as follows: the speed control of the cooling fan in the chip heat sink of this case and the corresponding L: Set the pulse width modulation signal of the rotational speed, the second frequency of the cooling fan, and the multiple of the first preset speed; perform a learning procedure on the cheek test rate 2; the system inputs the order and fixes it in a test and sequentially Note: The pulse width modulation signals with different t-periods are sent to the cooling fan according to the table; 2S 3 篦 is then used to complete a working cycle relative to the speed. The first job is based on the first preset speed and the comparison table. One-Work: Phase f 'The system rotates out-fixed at the first-frequency and the second scattered-pulse modulation signal to the cooling fan, so that the political heat fan runs at the first preset speed . According to the above idea 'the test frequency is not equal to the first Frequency and the multiple of the first frequency. According to the above concept, wherein the cooling fan speed control method further includes the following steps: sigh one of the second preset speed of the cooling fan and corresponding to the second preset speed A second frequency of the pulse width modulation signal, the second frequency being a multiple of the second preset speed; and a second duty cycle corresponding to the second preset speed and the lookup table, the system A pulse width modulation signal fixed at the first frequency and the second duty cycle is output to the cooling fan, so that the cooling fan uses the second preset

Bii 573394Bii 573394

轉速進杆】$絲 & π雙轉,而其中該測試頻率不等於該第二頻率以及 該第二頻率之倍頻。 ^六!艮據上述構想,本案晶片散熱裝置之該學習程序中, Μ糸統依序輪入固定於一測試頻率但工作周期由1 0 0 %往 I遞減變化4 %之脈衝寬度調變信號至該散熱風扇並依序 口己錄其轉速’進而完成該工作周期相對於轉速之對照表。 間皁圖式說明 本案得藉由下列圖式及詳細說明,俾得一更深入之了 解: 第一圖:其係可被一脈衝寬度調變信號所控制之習用散熱 風扇功能方塊示意圖。 第一圖(a) ( b ):其係脈衝寬度調變信號與上述習用轉 速輸出模組所輸出方波信號之示意圖。 第二圖·其係本案對於可由一脈衝寬度調變信號所控制之 散熱風扇所發展出一較佳實施例功能方塊示意圖。 第四圖(a) (b) ··其係脈衝寬度調變信號與上述本案之 轉速輸出模組所輸出方波信號之示意圖。 第五圖:其係本案對於上述散熱風扇所發展出一轉速控制 方法之較佳實施例步驟流程示意圖。 第六圖:其係本案轉速控制方法中所得致之一工作周期百 分比相對於轉速之對照表。 第七圖:其係本案轉速控制方法中所得致之預設轉速所對Rotational speed] Double wire & π double rotation, where the test frequency is not equal to the second frequency and a multiple of the second frequency. ^ Six! According to the above idea, in the learning process of the chip heat sink of this case, the MW system sequentially turns on a pulse width modulation signal that is fixed at a test frequency but whose duty cycle decreases from 100% to I by 4%. Go to the cooling fan and record its speed in sequence, and then complete the comparison table of the working cycle with respect to the speed. Intermediate soap diagram description This case can be further understood through the following diagrams and detailed descriptions: Figure 1: It is a functional block diagram of a conventional cooling fan that can be controlled by a pulse width modulation signal. The first picture (a) (b): it is a schematic diagram of the pulse width modulation signal and the square wave signal output by the conventional speed output module. The second figure is a functional block diagram of a preferred embodiment of a cooling fan that can be controlled by a pulse width modulation signal. The fourth figure (a) (b) is a schematic diagram of the pulse width modulation signal and the square wave signal output by the speed output module of the present case. Fifth figure: It is a schematic flowchart of the steps of a preferred embodiment of a speed control method developed for the above-mentioned cooling fan in this case. Figure 6: This is a comparison table of the percentage of the duty cycle relative to the speed obtained in the speed control method in this case. Figure 7: This is the result of the preset speed obtained in the speed control method of this case.

573394 五、發明說明(7) 、 應出該脈衝寬度調變信號之操作頻率與工作周期百分比結 果列表。 第八圖:其係將本案實施例裝置建構出一晶片散熱裝置之 構造不意圖。 第九圖:其係將晶片散熱裝置設置於可攜式電腦中之實例 方塊不意圖。 本案圖式中所包含之各元件列示如下: 風扇馬達1 0 第一端101 系統3 0 轉速輸出模組3 2 第二輸入端332 第三輸入端333 散熱片80 出風口 82 第二輸入端832 轉速輸出端834 基本輸出入系統9 1 較佳實施例說明 轉速輸出模組11 第二端102 風扇馬達3 1 第一輸入端331 轉速輸出模組3 2 轉速輸出端334 散熱風扇8 1 第一輸入端831 第三輸入端833 控制器90573394 V. Description of the invention (7) The result list of the operating frequency and duty cycle of the pulse width modulation signal should be displayed. Figure 8: It is not intended to construct the device of the embodiment of the present invention as a chip heat sink. Figure 9: This is an example where the chip heat sink is installed in a portable computer. The block is not intended. The components included in the drawings in this case are listed as follows: Fan motor 1 0 First end 101 System 3 0 Speed output module 3 2 Second input end 332 Third input end 333 Heat sink 80 Air outlet 82 Second input end 832 Speed output terminal 834 Basic input / output system 9 1 Preferred embodiment description Speed output module 11 Second end 102 Fan motor 3 1 First input terminal 331 Speed output module 3 2 Speed output terminal 334 Cooling fan 8 1 First Input 831 Third input 833 Controller 90

請參見第三圖,其係本案對於可由一脈衝寬度調變信Please refer to the third figure.

第11頁 573394 五、發明說明(8) Ξ所= :扇所發展出一較佳實施例功能方塊示意 = ϊ達31與轉速輸出模組32所構成,而為 i f持續輸出轉速信號之缺失,本實施例 特別將第-輸入端331與第二輸入端332固定電連接至一固 壓源Vcc與接地點,用以對轉速輪出模組32持續提供 電力,而另由一第三輸入端333來接收由該系_所發出 之脈衝寬度調變信號(如第四圖(a)所示),進而控制 :風扇馬達31之轉速。如此一來’轉速輸出模組32便可因 心' 忒馬達之旋轉速度而利用轉速輸出端334持續輸出一轉 速信號(如第四圖(b)所示)至系統3〇,進而達成全程 監控散熱風扇之轉速變化,以便系、統3〇對於風扇轉速之精 密控制。 再請參見第五圖’其係本案對於上述散熱風扇所發展 出一轉速控制方法之較佳實施例步驟流程示意圖,其係可 應用於一可攜式電腦之開機程序中’藉以因應該散熱風扇 之狀態而建立一對照表,進而達到精密控制風扇轉速之目 的。首先,根據實際需求之取捨(當風扇之轉速高時,其 散熱能力佳但噪音大,反之則散熱能力差但噪音小),吾 人可先決定預設之轉速以及對應出相對於該等預設轉速: 該脈衝寬度調變信號之頻率,以本例而言,吾人將風扇之 轉速設定於在每分鐘550 0轉、每分鐘5〇〇〇轉、每分鐘“⑽ 轉以及每分鐘400 0轉等四種狀態下運轉,其換算成頻率則 為(5500/60)赫兹、(5000/60)赫兹、(4500/60)赫兹以及 (40 00/60 )赫兹’因此相對於該等預設轉速之該脈衝寬度 第12頁 573394P.11 573394 V. Description of the invention (8): 所 =: The fan has developed a preferred embodiment of the functional block diagram = ϊ31 and the speed output module 32, which is the lack of if output continuous speed signal, In this embodiment, the first input terminal 331 and the second input terminal 332 are fixedly and electrically connected to a solid voltage source Vcc and a ground point, which are used to continuously provide power to the speed wheel output module 32, and another third input terminal 333 to receive the pulse width modulation signal sent by the system _ (as shown in the fourth figure (a)), and then control: the speed of the fan motor 31. In this way, the 'speed output module 32 can be driven by the speed of the motor', and the speed output terminal 334 is used to continuously output a speed signal (as shown in the fourth figure (b)) to the system 30, thereby achieving full monitoring. The rotation speed of the cooling fan is changed so that the system can precisely control the rotation speed of the fan. Please refer to FIG. 5 again, which is a flow chart of a preferred embodiment of a speed control method developed by the case for the above-mentioned cooling fan, which is applicable to the startup process of a portable computer. To establish a comparison table to achieve the purpose of precise control of the fan speed. First of all, according to the actual demand (when the fan speed is high, its heat dissipation is good but the noise is high, otherwise the heat dissipation is poor but the noise is low), we can first determine the preset speed and corresponding to these presets Speed: The frequency of this pulse width modulation signal. For this example, we set the fan speed at 5500 revolutions per minute, 50000 revolutions per minute, "⑽ revolutions per minute", and 400 revolutions per minute. When running under four states, the frequency is (5500/60) Hz, (5000/60) Hz, (4500/60) Hz, and (40 00/60) Hz. The pulse width 第 12 页 573573

調變信號之各頻率則分別為(5500/60)赫茲、(5000/60)赫 兹、(4500/60 )赫兹以及(4000/60 )赫兹之倍頻。 隨後進行一學習程序,於學習程序之開始前需先設定 一測試頻率,而該測試頻率之選擇要求係為儘量避開上述 四個預設轉速頻率值以及該等頻率之倍頻值。以本例而 言,吾人便將測試頻率設為233赫茲,於是系統30便對風 扇馬達3 1發出一頻率為2 3 3赫茲之脈衝寬度調變信號來進 行學習程序’而固定頻率之脈衝寬度調變信號便從丨〇 〇 % 之工作周期(duty cycle)開始依序向下遞減,進而依序 記錄出如第六圖所示之一工作周期百分比相對於轉速之對 照表’係由於母個風扇之性能皆有差異,故每個風扇之對 照表皆可能有所不同(本例係分別對六個風扇進行測試 )。在得出該對照表後,吾人再根據該對照表而分別就該 等預設轉速(5500轉、5000轉、4500轉以及4000轉)來對 應建立出(如利用内插法)出所需之工作周期百分比,本 例之結果如第七圖所示(數值已轉成丨6進位),但此刻還 有一件事需注意,即分別從(55〇〇/6〇)赫茲、(5〇〇〇/6〇)赫 茲、(4500/60)赫茲以及(4000/60)赫茲之倍頻中選出適當 之脈衝寬度調變信號頻率,如第七圖所示可清楚看出,四 個風扇轉速(5500轉、5000轉、4500轉以及4〇〇〇轉)係分 別對應至366赫兹、333赫茲、30 0赫茲以及266赫茲,如此 一來,適當地控制脈衝寬度調變信號之操作頻率與工作周 期百分比,將可把風扇轉速鎖定至精確的轉速上運行。舉 例而言,若欲控制編號一之風扇馬達之轉速於每分鐘5〇〇〇Each frequency of the modulation signal is a multiple of (5500/60) Hz, (5000/60) Hz, (4500/60) Hz, and (4000/60) Hz. Then, a learning procedure is performed. Before the beginning of the learning procedure, a test frequency must be set, and the selection of the test frequency is to avoid the above four preset speed frequency values and the multiples of these frequencies as much as possible. In this example, I set the test frequency to 233 Hz, so the system 30 sends a pulse width modulation signal with a frequency of 2 3 3 Hz to the fan motor 3 1 to perform the learning process. The modulation signal starts to decrease in sequence from the duty cycle of 〇〇〇%, and then sequentially records a comparison table of the percentage of the duty cycle to the speed as shown in the sixth figure. The performance of the fans are different, so the comparison table for each fan may be different (in this example, six fans are tested separately). After the comparison table is obtained, I then use the comparison table to correspondingly establish (such as using interpolation) the required rotation speeds (5500 rpm, 5000 rpm, 4500 rpm, and 4000 rpm). The duty cycle percentage. The result of this example is shown in the seventh figure (the value has been converted to hexadecimal), but there is one thing to note at this moment, that is, from (550,000 / 60) hertz, (50%) 〇 / 6〇) Hertz, (4500/60) Hertz, and (4000/60) Hertz multiples selected appropriate pulse width modulation signal frequency, as shown in the seventh figure can clearly see that the four fan speeds ( 5500 rpm, 5000 rpm, 4500 rpm, and 4,000 rpm) correspond to 366 Hz, 333 Hz, 300 Hz, and 266 Hz, respectively. In this way, the operating frequency and duty cycle of the pulse width modulation signal are appropriately controlled The percentage will lock the fan speed to the precise speed. For example, if you want to control the fan motor speed of No. 1 at 50000 per minute

573394 五、發明說明(10) " " -------- 轉時,根據第六圖與第七圖所示之對照表可清楚/ / 統係輸出一操作頻率為333赫茲( 333 = 4 x 5〇〇〇/g ’系 至76% (最佳值可用内插法推出)間之工作周期百^ % 脈衝寬度調變信·u,便可輕易地將編號一之風:二之 速鎖定於每分鐘5 0 00轉,進而達成精確控制轉速之2 =轉 再請參見第八圖,其係將本案實施例裝置建構> 。 片散熱裝置之構造示意圖,其中散熱片8〇係接觸於晶^晶 (圖中未示出)表面,用以增強該晶片之散熱效率曰,曰 熱風扇8 1,則受一脈衝寬度調變信號之驅動而進行運政 用以加速該散熱片周圍空氣之流動並由出風口 82送出,’ 本晶片散熱裝置係具有四輸出端(第一輸入端831、第二而 輸入端832、第三輸入端833以及轉速輸出端834 ),而= 有固疋電源之轉速輸出模組(圖中未示出,但如第三圖所 示)便可持續且精確地提供轉速信號至系統,用以進 上述之轉速控制方法。 再請參見第九圖,其係將晶片散熱裝置設置於可攜式 電腦中之實例方塊示意圖,其中編號N s 5 9 1之控制器9 〇可" 元成上述系統30之功能,由其編號176之接腳來接收轉速 輸出端834所持續輸出之轉速信號,而編號84之接腳則用 來接收代表晶片周圍環境溫度之溫度信號,而控制器g 〇便 可因應溫度與轉速來以編號3 2之接腳發出一脈衝寬度調變 信號,至於該脈衝寬度調變信號之操作頻率與工作周期百 分比便可根據已經儲存於編號NS59 1之控制器90或基本輸 出入系統(B I OS ) 9 1中如第七圖之資料數據來進行設定。573394 V. Description of the invention (10) " " -------- When turning, according to the comparison table shown in Figure 6 and Figure 7, it is clear that the system outputs an operating frequency of 333 Hz ( 333 = 4 x 50000 / g 'The duty cycle between 100% and 76% (the best value can be derived by interpolation).% Pulse width modulation letter u, you can easily number one wind: The second speed is locked at 5000 revolutions per minute, and then the precise control of the rotation speed is achieved. 2 = Return, please refer to the eighth figure, which is a schematic diagram of the structure of the embodiment of the case. 〇 is in contact with the surface of the crystal (not shown in the figure) to enhance the heat dissipation efficiency of the chip, said that the heat fan 8 1 is driven by a pulse width modulation signal to run the operation to accelerate the The flow of air around the heat sink is sent out from the air outlet 82. The chip heat sink has four output terminals (a first input terminal 831, a second input terminal 832, a third input terminal 833, and a speed output terminal 834), and = Speed output module with solid power supply (not shown in the picture, but as shown in the third picture) Continuously and accurately provide the speed signal to the system for the above-mentioned speed control method. Please refer to the ninth figure, which is a block diagram of an example in which a chip heat sink is set in a portable computer. The number is N s 5 9 The controller 9 of 1 can perform the function of the above-mentioned system 30. The pin 176 receives the speed signal continuously output by the speed output terminal 834, and the pin 84 is used to receive the surrounding area of the representative chip. The temperature signal of the ambient temperature, and the controller g can send a pulse width modulation signal with the pin No. 3 2 according to the temperature and the speed. As for the operating frequency and duty cycle percentage of the pulse width modulation signal, It has been stored in the controller 90 or the basic input / output system (BI OS) 9 1 of the number NS59 1 to set the data as shown in the seventh figure.

第14頁 573394Page 14 573394

五、發明說明(11) 至於第五圖所示之學 控制器90或基本輸出 成,在此不予贅述。 ,但製造方法較為容易 要目的。然本案發明得 諸般修飾,然皆不脫如 習古 j法歩驟亦分別可由編號NS591之 入系统(BIOS )91或是兩者共同來完 且降低成本,故有效達成本案之主 由熟習此技藝之人士任施匠思而為 附申請專利範圍所欲保護者。 573394 圖式簡單說明 5圖··其係可被一脈衝寬度調變信號所控制之習用 風扇功能方塊示意圖。 … 一 =圖(a ) (b ):其係脈衝寬度調變信號與上述習用轉 :剧出模組所輸出方波信號之示意圖。 f二圖:其係本案對於可由一脈衝寬度調變信號所控制之 ,熱風扇所發展出一較佳實施例功能方塊示意圖。 第四圖(a) (b ):其係脈衝寬度調變信號與上述本案之 轉速輸出模組所輸出方波信號之示意圖。 —工作周期百 第五圖:其係本案對於上述散熱風扇所發展出一轉速控制 方法之較佳實施例步驟流程示意圖。 第六圖··其係本案轉速控制方法中所得致之 分比相對於轉速之對照表。 第七圖:其係本案轉速控制方法中所得致之預設轉速所對 應出該脈衝寬度調變信號之操作頻率與工作周期f分比結 果列表。 第八圖:其係將本案實施例裝置建構出一晶片散熱裝置之 構造示意圖。 第九圖··其係將晶片散熱裝置設置於可攜式電腦中之實例 方塊示意圖。V. Description of the invention (11) As for the learning controller 90 or basic output shown in the fifth figure, it will not be repeated here. , But the manufacturing method is easier to achieve the purpose. However, the invention of this case has been modified in various ways, but it is not inconsistent with the ancient method. The steps can also be completed by the system number (NS) 91 of the NS591 or both and reduce the cost. Therefore, the main reason to effectively reach the cost case is familiar with this Those skilled in the art can be protected by the patent application scope. 573394 Brief description of the figure 5 Figures ... It is a functional block diagram of a conventional fan that can be controlled by a pulse width modulation signal. … I = Figure (a) (b): It is a schematic diagram of the pulse width modulation signal and the above-mentioned conventional conversion: the square wave signal output by the module. Figure 2f: This is a functional block diagram of a preferred embodiment developed by a heat fan for a pulse width modulation signal that can be controlled by this case. The fourth figure (a) (b): it is a schematic diagram of the pulse width modulation signal and the square wave signal output by the speed output module of the present case. —Work Cycle Hundredth Fifth Picture: It is a flow chart showing the steps of a preferred embodiment of a speed control method developed for the above-mentioned cooling fan in this case. Fig. 6 ... This is a comparison table of the ratio obtained by the speed control method in this case with respect to the speed. Fig. 7: It is a list of the operating frequency and duty cycle f score of the pulse width modulation signal corresponding to the preset speed obtained in the speed control method in this case. FIG. 8 is a schematic diagram of the structure of the embodiment of the present invention to construct a chip heat sink. Ninth figure ... It is a block diagram of an example in which a chip heat sink is set in a portable computer.

第16頁Page 16

Claims (1)

573394 年一 月 y 修正 573394 年一 月 y 修正 完成一工作周期相對於轉速之對照 六 而 進 、申請專利範圍 依序記錄其轉速’ 表,以及 ^蟪速以及該對照表而對應出一第一工 根據該第一預=固定於該第_頻率與該第一工作 作周期’ :ί : 3 :信號至該馬達,$而使該馬達以該第 周期之脈衝度5周、篆 一預設Ϊ i ί 1口:第3項所述之利用如申請專利範圍第 i項所述之馬達轉速偵測瓜置的馬達轉逮控制方法,其中 該測試頻率不等於該第一頻率以及該第一頻率之倍頻。 5 ·如申請專利範圍第3項所述之利用如申請專利範圍第 i項所述之馬^轉速偵測裝置的馬達轉速 更包含下列步驟: 卫刺刀次具中 設定該馬達之~、货 卑—預设轉速以及對雍Ψ 士日抖认4 Λ·Λ· 二預設轉速之該脈衝寬度調變信號之應出t於弟 頻率為該第二預設轉#〜 弟一頻率,該第二 根據該第二預頻,及 周期,忒糸統便輸出〜〃 了應出一弟二工作 期之脈衝寬度調變信號=^ ^弟頻率與該第二工作周 預設轉速進行運轉。〜以馬達,進而使該馬達以該第二 6 ·如申請專利範圍繁 … 1項所述之馬達轉速^貞貝所述之利用如巾請專利範圍 7 .如申請專利範圍^頻率以及該第二頻率之倍頻、。中 i項所述之馬達轉速 項所述之利用如申請專利、 足偵剛裝置的馬達轉速控寻和軌圍第573394 January y amended January 573394 y revised to complete a work cycle relative to the speed of the control of six, the scope of patent applications in order to record its speed table, and the speed and the comparison table corresponding to a first According to the first preset = fixed at the _ frequency and the first working cycle ': ί: 3: signal to the motor, $ to make the motor with the pulse of the first cycle for 5 weeks, a preset Ϊ i ί 1: The motor rotation control method described in item 3 using the motor speed detection device described in item i of the patent application scope, wherein the test frequency is not equal to the first frequency and the first Frequency multiplier. 5 · Using as described in item 3 of the scope of patent application, as described in item i of the scope of patent application, the speed of the motor of the speed detection device further includes the following steps: Set the motor in the bayonet tool, —The preset speed and the pulse width modulation signal of the two preset speeds of the yong shi shidai 4 Λ · Λ · The preset frequency should be the second preset speed # ~ the first frequency, the first According to the second pre-frequency and the period, the system outputs ~ 〃 the pulse width modulation signal of the second work period = ^ ^ frequency and the preset speed of the second work week to run. ~ With the motor, and then the motor with the second 6 · As the scope of the patent application is complicated ... The speed of the motor described in 1 item ^ Zhenbei uses the scope of the patent please 7. The scope of the patent application ^ frequency and the first Multiplier of two frequencies. The speed of the motor described in item i is the application of the patent, the motor speed control of the foot detection rigid device and the rail circumference. 市j方法,其中 573394 畫號 9013026(1 六、申請專利範圍 曰 J多正 於該學習程序中,該系統依序輸 作周期由1 0 0%往下遞減變4 U疋於二測試頻率但工 該馬達並依序記錄其轉速,進:之脈衝見度調變信號至 速之對照表。 凡成該工作周期相對於轉 8 ·如申請專利範圍第3項所述之 1項所述之馬達轉速偵測裝置的 σ申請專利範圍第 應用之該馬達與該系統係分別為'一^拴制方法,其所 式電腦。 、月”、、風扇馬達與一可攜 9 ·如申請專利範圍第3項所述 1項所述之馬達轉速偵;則I置的 ° 4專利範圍第 :馬達之轉速係由該馬達轉速偵:裝轉置,裝其:包 厂第三輸入端:電連接至該馬達與該系統間,該輸入 端係用以接收由該糸統所發出之該脈衝寬度調變信號, 而控制該馬達之轉速; 一轉速輸出模組,電連接於該第一接腳與一第二接 腳,其係因應該馬達之旋轉速度而持續輪出一轉速信號· 以及 u k ’ 一轉速輸出端’電連接至該轉速輸出模組與該系統 間,其係將該轉速信號輸出至該系統。 ' 丄0 · —種晶片散熱裝置,應用於以一系统中之一晶 上,該裝置包含: as 片City j method, of which 573394 picture number 9013026 (1. The scope of the patent application is more than J is in the learning program. The system sequentially inputs the cycle from 100% down to 4 U. At the second test frequency but Work the motor and record its rotation speed in sequence, and enter the comparison table of the pulse visibility modulation signal to speed. Fancheng This working cycle is relative to revolution 8. · As described in item 1 of item 3 of the scope of patent application The motor speed detection device of the σ patent application range applies to the motor and the system, which are respectively 'a tying method, its type of computer. ,,,,', fan motor and a portable 9 The speed detection of the motor as described in item 1 of item 3; then I set ° 4 patent scope: the speed of the motor is determined by the speed of the motor: install the transpose, install it: the third factory input terminal: electrical connection Between the motor and the system, the input terminal is used to receive the pulse width modulation signal sent by the system to control the speed of the motor; a speed output module is electrically connected to the first pin And a second pin which responds to the rotation of the motor And continuously rotate a speed signal · and uk 'a speed output terminal' is electrically connected between the speed output module and the system, which outputs the speed signal to the system. '丄 0 · — a kind of chip heat sink , Applied to a crystal in a system, the device contains: as 第19頁 573394Page 19 573394 月欠熱片,接觸於該晶片表面 J;_η 曰 修」 熱效率 一散熱風扇,其受一 運轉’用以加速該散熱片 ’用以增強該晶片之散 連接至 輸入端 號,進腳,其 5虎, 間,其 11· 所應用 12· 散熱風 ό又 該第一 第一頻 對 於一測 熱風扇 第一輪入 一固定電 第三It入 係用以接 而控制該 轉速輪出 係因應該 及 轉速輪出 係將該轉 如申請專 之該系統 如申請專 扇轉速控 定該散熱 預設轉速 率為該第 該散熱風 試頻率但 並依序記 脈衝寬度 周圍空氣 二輸入端 地點,用 接至該散 統所發出 之轉速; 連接於該 之旋轉速 接至該轉 出至該系 1 0項所 攜式電腦 0項所 端與一第 壓源與接 端,電連 收由該系 散熱風扇 模組,電 散熱風扇 端,電連 速信號輪 利範圍第 4糸/^ "〇J" 利範圍第 制方法包 風屬之一第一預設 之該脈衝 調變信號 之流動; ,該等輸 以持續輸 熱風扇與 之该脈衝 第一接腳 度而持續 速輸出模 統。 述之晶片 述之晶片 含下列步驟: 轉速以及 信號之一 一預設轉 扇進行一 工作周期 錄其轉速 寬度調變 速之倍頻 學習程序 不同之脈 ,進而完 ,該系統 衝寬度調 成一工作 之驅動而進行 入端係固定電 入電力; 該系統間,該 寬度調變信 與一弟二接 輸出一轉速信 組與該系統 散熱裝置,其 散熱裝置,其 對應出相對於 第一頻率,該 依序輪入固定 臺传號至該散 周期相對於轉The underheating fin contacts the surface J of the chip; _η said repair "Thermal efficiency a cooling fan, which is operated by a 'for accelerating the heat sink' to enhance the loose connection of the chip to the input terminal, 5 tigers, of which 11 · applied 12 · heat dissipation wind and the first first frequency for a heating fan the first round into a fixed electricity third It is used to connect and control the speed wheel out of the system It should be the same as the application of the speed wheel. If you apply for a special fan speed control system, the heat dissipation preset speed is the first cooling air test frequency, but the location of the surrounding air two input terminals is sequentially recorded. Connected to the rotating speed issued by the Santong; connected to the rotating speed connected to the 10 to the portable computer in the system and 0 to the end of a portable computer and a first pressure source and connection, the electrical connection received by the It is a cooling fan module, an electric cooling fan terminal, and the electric speed signal wheel. The range of profit is 4 糸 / ^ " 〇J " The method of profit range includes the first preset flow of the pulse modulation signal. ;, Such losers hold Fan of the heat transport pins of the first pulse duration and speed output mode system. The described chip includes the following steps: one of the rotation speed and the signal, a preset rotary fan performs a duty cycle, and records the different pulses of the frequency doubling learning process of the speed width adjustment, and then, the system adjusts the width of the system to a working speed. The input terminal is driven by a fixed electric power input; between the system, the width modulation signal and the second output a speed signal group and the heat dissipation device of the system, the heat dissipation device, which corresponds to the first frequency, the Sequential rotation into the fixed station to transmit the number to this scattered period is relative to the turn 第20頁 573394 _案號 90130260_年月日__ 六、申請專利範圍 速之對照表;以及 根據該第一預設轉速以及該對照表而對應出一第一工 作周期,該系統便輸出一固定於該第一頻率與該第一工作 周期之脈衝寬度調變信號至該散熱風扇,進而使該散熱風 扇以該第一預設轉速進行運轉。 1 3 ·如申請專利範圍第1 0項所述之晶片散熱裝置,其 中該測試頻率不等於該第一頻率以及該第一頻率之倍頻。 1 4 ·如申請專利範圍第1 2項所述之晶片散熱裝置,其 中該散熱風扇轉速控制方法更包含下列步驟; 設定該散熱風扇之一第二預設轉速以及對應出相對於 該第二預設轉速之該脈衝寬度調變信號之一第二頻率,該 第二頻率為該第二預設轉速之倍頻;以及 根據該第二預設轉速與該對照而對應出一第二工作周 期,該系統便輸出一固定於該第一頻率與該第二工作周期 之脈衝寬度調變信號至該散熱風扇,進而使該散熱風扇以 該第二預設轉速進行運轉。 1 5 ·如申請專利範圍第1 4項所述之晶片散熱裝置,其 中該測試頻不等於該第二頻率以及該第二頻率之倍頻。 1 6 ·如申請專利範圍第1 2項所述之晶片散熱裝置,其 中於該學習程序中,該系統依序輸入固定於一測試頻率但 工作周期由1 0 0 %往下遞減變化4 %之脈衝寬度調變信 號至該散熱風扇並依序記錄其轉速,進而完成該工作周期 相對於轉速之對照表。Page 20 573394 _Case No. 90130260_Year Month Day__ VI. A comparison table of patent application speed; and a first working cycle corresponding to the first preset speed and the comparison table, the system outputs a The pulse width modulation signal fixed at the first frequency and the first duty cycle is sent to the cooling fan, so that the cooling fan is operated at the first preset speed. 1 3 · The chip heat sink according to item 10 of the scope of patent application, wherein the test frequency is not equal to the first frequency and a multiple of the first frequency. 1 4 · The chip heat sink according to item 12 of the scope of the patent application, wherein the method for controlling the speed of the cooling fan further includes the following steps: setting a second preset speed of the cooling fan and corresponding to the second preset speed. Setting a second frequency of the pulse width modulation signal of the rotation speed, the second frequency being a multiple of the second preset rotation speed; and corresponding to a second duty cycle according to the second preset rotation speed and the comparison, The system outputs a pulse width modulation signal fixed at the first frequency and the second duty cycle to the cooling fan, so that the cooling fan operates at the second preset speed. 15 · The chip heat sink according to item 14 of the scope of patent application, wherein the test frequency is not equal to the second frequency and a multiple of the second frequency. 16 · The chip heat sink according to item 12 of the scope of the patent application, wherein in the learning process, the system sequentially inputs a fixed frequency at a test but the duty cycle decreases from 100% to 4%. The pulse width modulation signal is sent to the cooling fan and its rotation speed is recorded in order, thereby completing a comparison table of the working cycle with respect to the rotation speed. 第21頁Page 21
TW90130260A 2001-12-06 2001-12-06 Detection device of motor rotation speed and control method TW573394B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8751710B2 (en) 2012-05-08 2014-06-10 Entegra Technologies, Inc. Reconfigurable modular computing device
TWI775482B (en) * 2021-06-10 2022-08-21 茂達電子股份有限公司 System of driving and controlling motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8751710B2 (en) 2012-05-08 2014-06-10 Entegra Technologies, Inc. Reconfigurable modular computing device
US8924609B2 (en) 2012-05-08 2014-12-30 Entegra Technologies, Inc. Reconfigurable modular computing device
US9213664B2 (en) 2012-05-08 2015-12-15 Entegra Technologies, Inc. Reconfigurable modular computing device
TWI775482B (en) * 2021-06-10 2022-08-21 茂達電子股份有限公司 System of driving and controlling motor

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