TW456093B - Driving method of brushless DC motor - Google Patents

Driving method of brushless DC motor Download PDF

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Publication number
TW456093B
TW456093B TW88114130A TW88114130A TW456093B TW 456093 B TW456093 B TW 456093B TW 88114130 A TW88114130 A TW 88114130A TW 88114130 A TW88114130 A TW 88114130A TW 456093 B TW456093 B TW 456093B
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Taiwan
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signal
terminal
comparator
patent application
logic
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TW88114130A
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Chinese (zh)
Inventor
Jia-Jang Shiu
Jr-Shr Yang
Wen-Tai Lin
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Prolific Technology Inc
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Priority to TW88114130A priority Critical patent/TW456093B/en
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Publication of TW456093B publication Critical patent/TW456093B/en

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Abstract

This invention relates to a kind of method for driving and controlling brushless DC motor. At first, the magnetic pole distribution of motor rotator is sensed. According to the sensed signal, the driving control signal is generated. When the rotator reaches a critical region before and after the critical position, the driving control signal stays at a disable indication state such that the stator of motor does not generate magnetic field during this period and the rotator operates according to the original inertia. When the rotator is located outside the critical region, the driving control signal stays at a general driving-state such that the stator of motor generates a magnetic field according to the predetermined manner and the rotator is accelerated to operate.

Description

5 4 609 3 A7 ______ B7 五、發明説明（） 5，1發明領域： 本發明係有關於一種無刷式直流馬達的驅動方法，季 别是一種區間暫停的無刷式直流馬達驅動方法 5-2發明背景： 在電子電機工業中，傳統的馬達採用線圏作爲内伞 子，並由轉子的機械運轉產±線圏接點交換的作肖，以> 控制線®電流方向的交變n式容易因機械性的磨相 而損耗接點電刷（Brush)的材質，造成阻抗增大，接觸习 良，甚至因摩擦而發出火花等問題。無刷式直流馬達（d< Brushless M〇tor0j將線圈捲繞於定子上，而以永久磁鐵^ 爲轉子，並採用電子電路的控制方式，使線圈電流及感肩 磁場產生交變，因此不需要進行接點變換，可以避免電海 接點的機械性磨損等缺點。 無刷式直流馬達的驅動方式採用如第一圖中所顯示的 流程。首先以一霍爾感應器（Hall Sensor或是Hall 1C)感 測外轉子的磁場分佈位置（步驟101);然後根據此一感應訊 號產生一驅動控制訊號（步骤1 〇2);以驅動控制訊號控制定 子線圏上的電流方向，藉著電流方向的轉換改變線圏感應 磁場的極性（步驟1〇3);並由此定子線囷感應磁場對轉子螆 鐵所產生的磁力，驅動轉子向預定的方向轉動（步驟104)。 I —,Ί I — - n n -- 4 n n PI I D n (请先閲讀背面之注意事項再填寫本育) 經濟部智慧財產局員工消资合作社印製 45 ^09 3 五、 發明説明（ A7 B7 第二A®至第二〇 外轉子的運轉機制。在 支臂 U2、114、116及 四磁極 122、124、ι26 器130設置於支臂112 的位置。此時霍爾感應 的磁場，而根據感測訊 現的方向，使馬達定子 所示，支臂112及116 的S極指向外。於是馬 場的磁力作用，各磁極 131至138所示。 圖顯示出一無刷式直流馬達定子與 第二A圖中，馬達定子ι1()的線圈 118分别指向馬達外轉子120中， 及128的四個交界點；一霍爾感應 及114的中央線上，接近轉子12〇 器130感測到轉子s極124中央點 號所產生的驅動訊號將控制線圏電 11 〇各支臂的磁極分佈方位如圖中 的N極指向外，而支臂114及118 達各轉子磁極將受到各定子支臂磁 的受力方向约略如圖中各空心箭號 以轉子N極122爲例，N極122受到定子支臂112之 N極斥力131的作用，並受支臂114之s極吸力13"2作用, 二力在切線方向上所產生的分力，將使轉子產生—向逆時 鐘方向旋轉的角加速度運動（角加速度向量方向爲垂亩透 出紙面）。同樣地，轉子S極124將受定子支臂114、^ 斥力133，以及支臂116之N極吸力134的作用，而 線方向上產生一逆時鐘方向旋轉的角加速度運太切5 4 609 3 A7 ______ B7 V. Description of the invention (5) Field of the invention: The present invention relates to a method of driving a brushless DC motor, and the season is a method of driving a brushless DC motor with an interval pause. 2Background of the Invention: In the electronic motor industry, traditional motors use wire coils as inner umbrellas, and the mechanical operation of the rotor produces ± wire coil contact exchanges as a way to control the alternating current direction of the wire® It is easy to lose the material of the contact brush due to mechanical wear, which causes problems such as increased impedance, contact contact, and even sparks due to friction. A brushless DC motor (d < Brushless Motor 0j) has a coil wound on a stator, with a permanent magnet ^ as a rotor, and an electronic circuit control method is used to cause the coil current and the shoulder magnetic field to alternate, so no need The contact change can avoid the disadvantages of mechanical wear of the electric and sea contacts. The driving method of the brushless DC motor uses the process shown in the first figure. First, a Hall sensor (Hall Sensor or Hall) 1C) Sensing the magnetic field distribution position of the outer rotor (step 101); and then generating a drive control signal (step 102) based on this inductive signal; controlling the direction of the current on the stator coil by the drive control signal, and by means of the current direction The change of the polarity of the magnetic field induced by the wire coil (step 103); and the magnetic force generated by the magnetic field of the stator wire to the rotor and iron drives the rotor to rotate in a predetermined direction (step 104). I —, Ί I —-Nn-4 nn PI ID n (Please read the notes on the back before filling in this education) Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 45 ^ 09 3 V. Description of the invention (A7 B7 Second A® The operation mechanism of the 20th outer rotor. The arms U2, 114, 116 and the four magnetic poles 122, 124, ι26 are arranged at the positions of the arms 112. At this time, the magnetic field induced by the Hall is based on the detected magnetic field. Orientation so that the motor stator is shown with the S poles of the arms 112 and 116 pointing outwards. Therefore, the magnetic force of the racetrack is shown as 131 to 138. The figure shows a brushless DC motor stator and the second A diagram, The coils 118 of the motor stator ι1 () point to the four junction points of the outer rotor 120 and 128 of the motor respectively; a hall induction and the center line of 114 are close to the rotor 120 and the sensor 130 senses the center point of the rotor s pole 124 The generated driving signal will control the electric line of the control line. The magnetic poles of the arms will be oriented outward as shown in the figure. The arms 114 and 118 reach the rotor poles and will be subjected to the direction of the magnetic force of the stator arms. In the figure, the hollow arrows take the rotor N pole 122 as an example. The N pole 122 is affected by the N pole repulsive force 131 of the stator support arm 112 and the s pole suction force 13 " 2 of the support arm 114. The second force is in the tangential direction. The component force generated on the rotor will cause the rotor to produce a counterclockwise direction. Rotating angular acceleration motion (the direction of the angular acceleration vector is draped through the paper surface). Similarly, the rotor S pole 124 will be affected by the stator arm 114, the repulsive force 133, and the N pole suction 134 of the arm 116. Angular acceleration caused by counterclockwise rotation in direction

轉子N 極126與S極128也具有同樣的情形。於是，* 7蜂釋予120 將如圖_箭號139所示，在定子磁場切向分力的作用 以逆時鐘方向環繞定子的中心點旋轉。 下 Ι·!Ί ! I I—-III —裝 I I — 訂 — n n I \ (請先閲讀背面之注意事項再填寫本f ) 經濟部智慧財產局員工消費合作社印製 3 1本紙張尺度適用^^國家標準（〇奶）八4規格（2!0/297公釐) ~____ 45 609 3 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（ 當馬達轉子120由圖形2A中的位置’逆時鐘方向旋轉 至第一 B圖中的位置時，馬達定子u〇的線圏支臂n2、 114、116及118’將分别指向馬達外轉子120中，四磁極 124、126、128及122的令心。此時馬達外轉子四嵫極122、 124、126及128所受的磁力將指向定子中心的方向，如圖 中各空心箭號142、144、146及148所示，切線方向的分 力爲〇。於是馬達外轉子12〇沒有切線方向的加速度，而 由慣性作用繼續向箭號149所示的迭時鐘方向轉動。此時 霍爾感應器位於外轉子S極124與Ν極126的交界點，所 感測到的總和磁場爲〇。 當馬達轉子12◦由第二Β圖中的位置，繼續向逆時鐘 方向旋轉一極短距離而至第二c圖中的位置時，霍爾感應 器將偏離外轉子S極124與N極126的交界點，而感刮到 N極126的礤力。此時的驅動控制訊號將改變定子線囷上 的電流方向’使線圈感應磁場的極性交變，形成第二C圖 中所示的情形，支臂112及116爲s極指向外，而支臂iu 及118則爲N極指向外。於是外轉子各磁極所受到的磁力 將如空心箭號152、154、156及158所示，具有一切線方 向的微量分力，使外轉子繼續向逆時鐘方向159加速，然 後到達第二D圖中所示的位置a 馬達轉子磁極與定子磁場的極性在第二D圖中的分佈 .…i ---r ^^1 ^^^1 In m I J I ^^^1 m ----- 03 言 (請先閱讀背面之注意事項再填寫本頁)The same applies to the rotor N-poles 126 and S-poles 128. Therefore, * 7 bee release to 120 will rotate around the center point of the stator in the counterclockwise direction under the action of the tangential component of the stator magnetic field, as shown in Figure _arrow 139. Next I ·! Ί! II—-III — 装 II — Order— nn I \ (Please read the precautions on the back before filling in this f) Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs 3 1 This paper size is applicable ^^ National standard (〇 奶) 8 4 specifications (2! 0/297 mm) ~ ____ 45 609 3 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (when the motor rotor 120 is shown by the position in Figure 2A 'When rotating counterclockwise to the position in the first B figure, the wire arms n2, 114, 116, and 118 of the motor stator u〇 will point into the outer rotor 120 of the motor, with four magnetic poles 124, 126, 128, and 122, respectively. At this time, the magnetic forces on the four rotor poles 122, 124, 126, and 128 of the motor's outer rotor will point in the direction of the center of the stator, as shown by the hollow arrows 142, 144, 146, and 148 in the figure. The component force is 0. Therefore, the outer rotor 12 of the motor has no tangential acceleration, and continues to rotate in the direction of the clock shown by arrow 149 by inertia. At this time, the Hall sensor is located at the outer pole S pole 124 and the N pole 126. At the junction point, the total magnetic field sensed is 0. When the motor Sub 12: From the position in the second B picture, continue to rotate a very short distance in the counterclockwise direction to the position in the second c picture, the Hall sensor will deviate from the boundary of the outer rotor S pole 124 and N pole 126. Point, and feel the force of the N pole 126. At this time, the drive control signal will change the direction of the current on the stator wire ', so that the polarity of the magnetic field induced by the coil is alternated, forming the situation shown in the second C diagram. The arms 112 and 116 point out the s-poles, and the arms iu and 118 point out the N-poles. So the magnetic force on the poles of the outer rotor will be as shown by the hollow arrows 152, 154, 156, and 158, with all lines A small amount of component force in the direction makes the outer rotor continue to accelerate in the counterclockwise direction 159, and then reaches the position shown in the second D diagram a. The distribution of the polarity of the motor rotor magnetic pole and the stator magnetic field in the second D diagram ... i- -r ^^ 1 ^^^ 1 In m IJI ^^^ 1 m ----- 03 words (Please read the precautions on the back before filling this page)

X 297公釐） 456093 經濟部智慧財產局員工消斧合作社印製 本紙張尺度適用中國国家標準（CNS ) M規格（2丨0X297公釐） A7 B7 五、發明説明（） 情形，恰與在第二A圖中的分佈情形相反。於是，原本由 N極對N極所產生的斥力131及135,在此由s極對5極 產生的等大同向之斥力161及165所取代，反之亦然（斥力 133及137由斥力163及167取代）》而由n極對s極所產 生的吸力134及138，則由S極對N極所產生的等大同向 之吸力164及168取代’反之亦然（吸力132及136由吸力 162及166取代）。於是馬達轉子繼續朝原逆時鐘方向ι69 運轉。 在以上所述無刷式直流馬達定子與外轉子的運轉機制 中’馬達轉子於第二Α圖的位置上得到最大的轉動加速 度’然後加速度漸減，達到第二B圖的位置，加速度降爲〇。 此時馬達轉子磁極所在的位置爲一臨界位置，若是馬達定 子的磁場分佈維持不變，而轉子繼續向原方向轉動超過此 一臨界位置，则定子磁場將會紂轉子磁極產生一方向與轉 動方向相反的切線加速度，而將轉子減速。所以當轉子繼 續轉動，超過此一鄰界位置而到達第二C圖中的位置時， 定子磁場必須產生交變作用，才能使馬達朝原方向繼續加 速，然後到達第二D圖中的位置，再度得到最大的轉動加 速度。如此周而復始，持續運轉。 根據此一運轉方式，馬達必須在轉子一到達第二B圖 中的位置時，立刻使定子磁場產生交變。然而由於電子訊 號在電路中傳遞時都會有極短的時間延遲現象，當霍爾感 5 —— \------裝------訂------^ ' ; < (請先閎讀背面之注意事項再填寫本頁) 456093 A7 B7 五'發明説明（） 應器感測到轉子到達臨界位蓄陆 丨位置時，所傳送而出的感測訊 號，以及根據感測訊號所產*认姐知仏 吓屋生的驅動控制訊號，都會有時 間延遲的現象。在此一時間延 网延遲的極短瞬間，馬達轉子已 通過臨界位置’而定子磁培执始杜広、 每仍維持原分怖情形，此時將產 生一反向作用力作用在轉子上。 當反向作用力作用在馬達轉子上時，馬達轉子將產生 -逆向的加速度此將會減損馬達的運轉效能，抵銷部 分的正向㈣力。而且’由於磁力逆向㈣，將使馬達的 運作不順’機械部分的摩擦力增大，#至在機械容許差量 (Tolerance)的範圍内產生震動、到擦等現象，易使轉子於 運轉中發出大量嗓音，並導致馬達使用壽命縮肖，損壞機 率大爲增加。 f請先閲讀背面之注意事項再填寫本頁} 訂 經濟部智慧財產局員工消費合作社印製 5-3發明目的及概迷： 鑒於上述之發明背景中，傳統的無刷式直流馬達的堪 動方式，易因爲電'路訊號的時間延遲，而在轉子到達臨界 位置附近時產生逆向作用力，使轉子的運作受到千擾，影 響正常使用，所以有必要產生一種高效率、低噪音的驅動 方式。根據以上所述之目的，本發明提供了 一種無刷式直 流馬達.的運轉控制方法’採用區間禁能的驅動方式，使馬 達在定子磁場交變的臨界區間内，能夠依其慣性順利運 轉，不會因爲電路訊號的時間延遲而產生反向作用力，影 本紙張尺度逋用中圉國家橾準（CNS ) A4規格（2l〇'X297公嫠） 45 609 3 A7 _ _ B7 五、發明说明（ 響馬達轉子的運作效能。 本發明無刷式直流馬達的運轉控制方法如下：首先以一 霍爾感應器感測馬達轉子的磁極分佈；然後根據感測訊號產 生驅動控制訊號。驅動控制訊號將根據轉子的位置而產生不 同的反應》當轉子到達臨界位置前後的臨界區域時，驅動控 制訊號處於禁能指示狀態，將使馬達定子於此區間内不產生 磁場’馬達轉子按照原有的慣性運轉。而當轉子位於臨界區 域外時，驅動控制訊號處於一般驅動狀態，將驅使馬達定子 按照預定方式產生磁場，使馬達加速運轉。 5-4圈式簡單説明： 本發明的較佳實施例將於往後之説明文字中輔以下列 圖形做更詳細的閣述： 第一圖爲無刷式直流馬達驅動方式的流程圖； 第二A圖至第二D囷爲一無刷式直流馬達定子與外轉 子運轉機制的剖面圈； 第三囷爲本發明無刷式直流馬達驅動方法的主要流程 1ST - 團， 第四圖爲本發明無刷式直流馬遠驅動方法最佳實施例 的流程圖； 第五圖爲本發明第四圖所示最#實施例的感測及控制 訊號時序圈；以及 私紙張尺度適廊中闺國家棣準（CNS ) A4規格（210X297公釐） !一---一------^------1T------^ I - - (請先閱讀背面之注意ί項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 456093 A7 B7 圖 五、發明説明（） 第六圖爲本發明第四圖所千 所不瑕佳實拖例的電路達成 5-5發明詳Jw説明： 本發明揭露-種無刷式直流馬達的運轉控制方法，採 用區間禁能的驅動控制方式’使馬達在定子磁場交變的臨 界區間内，能夠依其慣性順利運轉，不會因爲電路訊號的 時間延遲而產生反向作用力’影響馬達轉子的運作效能。 第三圖中顯示出本發明無刷式直流馬達區間禁能之運 轉控制方法Mm圖—霍爾感應器感測馬達轉 子的磁極分佈(步冑301);然後根據霍爾感應器的感測訊號 產生驅動控制訊號（步驟302卜驅動控制訊號將根據轉子的 位置是否到達一臨界區域之中’而產生不同的反應（步驟 303)。此一臨界區域爲分佈於臨界位置前後的一特定時段或 特定位置（二者由馬達轉速產生關聯），馬達定子的磁場將在 轉子通過臨界區域後產生交變。當轉子位於臨界區域外時， 驅動控制訊號處於一般驅動狀態，將驅使馬達定子按照預定 的方式產生磁場，使馬達轉子加速運轉（步騍3〇4)。當而轉 子位於臨界區域中時，驅動控制訊號處於一禁能指示狀態， 將使馬達定子於此區間内不產生磁場（即定子線圏上沒有電 流泥通），於是馬達轉子沒有受到磁力作用，不產生切線加 速度，而按照原有的慣性運轉（步驟3〇5)。 本紙張尺度逋用中國國家標準< CNS ) A顿ΙΤ1Γ〇χ 297公釐 I ! - I ....... - - .....1 I * I - _ .n — I I -II 1—* • 、-° (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消资合作社印製 45 609 3 A7 B7 五、發明説明（） 第四圖爲本發明最隹實施例的流程圖。在本實施例 t ’採用一霍爾感應器設置於二定子支臂的中線上’以感 測轉子磁極的磁場強度，並產生二感測訊號HP及ΗNl (步 驟401)。參見第五圖中所顯示的感測及控制訊號時序圏， 相對於一基準電位，霍爾感應器所產生的二感測说號Hp 及HN等大而反向，且二訊號的交會點即爲轉子的臨界位 置；亦即，當轉子位於臨界位置時，霍爾感應器位於轉子 二磁極交會點，二感測訊號Η P及Η N恰處於霍爾感應器 的基準電位。當採用如第二圖中所示的四磁極轉子及四支 臂定子時，轉子轉動一避將會經過四個臨界位置。在一鄰 界位置P1前後，感測訊號HP將由第一感應位準逐漸升高 到第二感應位準；而在次一鄰界位置P2前後’則由第二感 應位準逐漸回升到第一感應位準，感測訊號Η N則相反。 第一感應位準與第二感應位準間的電位差，即爲霍爾感應 器的飽和輸出電位差。 接著根據預定的禁能區間，產生一第一參考訊號 Vrefl，以此第一參考訊號Vrefl在臨界位置兩側決定臨界區 域的範圍（步驟402)。第一參考訊號Vrefi決定後，以此第 一參考訊號爲基準比較二感測訊號HP及HN，產生二非重 疊訊號SP及SN(步騍403)。其中，在感測訊號HP大於第 一參考訊號Vrefl的時段内，使非重疊訊號SP處於高位準 狀態；而在感測訊號HP小於第一參考訊號Vren的時段 本紙張尺度適用中國國家標準（CNS ) A4規格（2Ι〇χ297公釐） f諫先閑讀背面之注意事項再壤窝本頁〕 訂 經濟部智慧財產局員工消費合作社印製 456093 A7 B7 五、發明説明（） (请先W讀背面之注$項再填寫本寅) 内’使非重疊訊號SP處於低位準狀態。同樣地，在感測訊 號HN大於第一參考訊號^^6£1的時段内，使非重疊訊號SN 處於高位準狀態；而在感測訊號HN小於第一參考訊號 的時段内，使非重疊訊號Sn處於低位準狀態。當第 一參考訊號Vreil大於霍爾感應器的基準電位時，訊號SP 及SN不會同處於高位準狀態，因此稱爲非重疊訊號；而 在臨界位置前後一特定時段内，二非重疊訊號SP及SN將 同時處於低位準狀態，此一時段（a,b)即爲選定的臨界區 域。 經濟部智慧財產局8工消費合作社印製 根據二非重疊訊號SP及SN，輸出一控制訊號Ctrl。 當二非重疊訊號SP及SN同時處於低位準狀態時，輸出一 禁能指示狀態’其餘時段則輸出一般指示狀態（步骤404)。 一或閘運算或是反或閘邏輯運算可以達到此一目地；當採 用或閘運算時，禁能指示狀態爲低位準狀態；而當採用反 或閘邏輯運算時’禁能指示狀態則爲高位準狀態；在第五 囷所示的實施例中，以高位準狀態爲禁能指示狀態。由於 SP及SN只有在臨界區域中同時處於低位準狀態，於是所 形成的控制訊號Ctr!將在臨界區域中處於禁能指示狀態。 因此可以採用此控制訊號ctrl作爲驅動訊號，使馬達定予 於非臨界區域内按照轉子磁極的驅動需求產生交變磁場， 在臨界區域令則不產生磁場，而達到區間禁能的目的。 同樣的控制訊號Ctrl也可以採用同樣原則的不同方法 本紙張尺度適用中國國家揉準（CNS ) A4規格（210X29?公釐） 4 5 6 0 9 3 經濟部智慧財產局員4消費合作杜印製 A7 B7 五、發明説明（） 得到。例如使第一參考訊號Vreft小於霍爾感應器的基準電 位’然後在感測訊號HP或HN小於第一參考訊號Vrefl時， 使非重疊訊號SP>及SN，處於高位準狀態；反之則爲低位準 狀態。如此所得到的訊號SP’及SN'，恰爲第五囷中的SN 及SP ’而同樣的或閘運算或是反或閘運算可以得到同樣的 控制訊號Ctri。此外，也可以使第一參考訊號Vrefi小於霍 爾感應器的基準電位，然後在感測訊號HP或HN大於第 一參考訊號Vren時輸出高位準狀態；反之則書低位準狀 態，而得到二重疊訊號SP"及SN"，再以及閘運算得到同 樣的控制訊號Ctri。 採用控制訊號Ctrl驅動馬遠運轉，可以直接以控制訊 號Ctr【作爲驅動訊號，也可以配合其它方法，進行馬達轉 速的調控。在本發明一實施例中，採用脈波寬度調變方法 (Pulse Width Modulation, PWM) ’ 配合控制訊號 Ctrl 進一 步控制馬達轉速。產生一脈波寬度調變訊號PWM(步驟 405) »脈波寬度調變訊號PWM的產生，係採用一第二參考 訊號Vref〗爲基準，比較一蘇齒波訊號Saw而得。此_鋸 齒波訊號可以採用對電容充放電的方式產生；若以控制訊 號Ctrl控制電容放電迴路的導通與否，則所形成的基頻録 齒波在臨界區域中具有最低位準狀態。 在脈波宽度調變之後，當鋸齒波訊號Saw大於第二參 考訊號Vref2時，脈波寬度調變訊號PWM處於高位準狀 J-----------裝-------訂------.球 » * (請先閱讀背面之注意事項再填寫本頁}X 297 mm) 456093 The paper size printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economy applies the Chinese National Standard (CNS) M specification (2 丨 0X297 mm) A7 B7 5. The description of the invention () is exactly the same as in the first The distribution in the two A graphs is opposite. Therefore, the repulsive forces 131 and 135 originally generated by the N-pole to the N-pole are replaced by the repulsive forces 161 and 165 of the same direction produced by the s-pole toward the 5-pole, and vice versa (repulsive forces 133 and 137 by repulsive forces 163 and 163 167 replaces) "while the suction forces 134 and 138 generated by the n-pole to the s-pole are replaced by the same-direction suction forces 164 and 168 produced by the S-pole to the N-pole (and vice versa (the suction force 132 and 136 by the suction force 162) And replaced by 166). Then the motor rotor continues to run counterclockwise. In the above-mentioned operation mechanism of the brushless DC motor stator and the outer rotor, 'the motor rotor gets the maximum rotational acceleration at the position of the second A', and then the acceleration gradually decreases to reach the position of the second B, and the acceleration drops to 0. . At this time, the position of the magnetic pole of the motor rotor is a critical position. If the magnetic field distribution of the motor stator is maintained, and the rotor continues to rotate in the original direction beyond this critical position, the stator magnetic field will generate a direction in which the rotor magnetic poles are opposite to the direction of rotation. The tangential acceleration will decelerate the rotor. Therefore, when the rotor continues to rotate and exceeds this adjacent position to reach the position in the second C diagram, the stator magnetic field must produce an alternating effect so that the motor can continue to accelerate in the original direction, and then reach the position in the second D diagram, and again Get maximum rotational acceleration. This cycle starts and continues. According to this operation mode, the motor must change the stator magnetic field as soon as the rotor reaches the position in the second B diagram. However, since the electronic signal is transmitted in the circuit, there will be a very short time delay phenomenon. When the Hall sensor 5 —— \ ------ installation ------ order ------ ^ '; < (Please read the precautions on the back before filling this page) 456093 A7 B7 Five 'invention description () When the rotor detects that the rotor has reached the critical position, the sensing signal transmitted by the rotor, and according to The drive control signal produced by the sensing signal * recognizes the intimidation of the student will have a time delay. At this extremely short instant of time delay, the rotor of the motor has passed the critical position, and the stator magnetism has been executed, and the original distribution is still maintained. At this time, a reverse force will be exerted on the rotor. When a reverse force is applied to the motor rotor, the motor rotor will generate a reverse acceleration. This will reduce the operating efficiency of the motor and offset some of the forward force. In addition, 'the magnetic force will be reversed and the motor will not run smoothly'. The friction of the mechanical part will increase. # Vibration, friction, etc. will occur within the range of the mechanical tolerance (Tolerance), which will easily cause the rotor to emit during operation. A lot of voices will cause the service life of the motor to shrink, and the chance of damage is greatly increased. f Please read the notes on the back before filling in this page} Order 5-3 printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives, and the general purpose of the invention: In view of the above background of the invention, the traditional brushless DC motor can be moved Method, it is easy to generate a reverse force when the rotor reaches the critical position due to the time delay of the electric signal, which will disturb the operation of the rotor and affect the normal use. Therefore, it is necessary to generate a high-efficiency, low-noise driving method. . According to the above-mentioned object, the present invention provides an operation control method of a brushless DC motor. The driving method adopts an interval-disabled driving method, so that the motor can smoothly run according to its inertia in the critical section where the stator magnetic field alternates. There will be no reverse force due to the time delay of the circuit signal. The size of the paper used in the paper is in accordance with the Chinese National Standard (CNS) A4 (2l0'X297). 45 609 3 A7 _ _ B7 V. Description of the invention ( The operation control method of the brushless DC motor according to the present invention is as follows: firstly, the magnetic pole distribution of the motor rotor is sensed by a Hall sensor; then the drive control signal is generated according to the sensing signal. The drive control signal will be based on The position of the rotor produces different responses. When the rotor reaches a critical area before and after the critical position, the drive control signal is in a disabled state, which will cause the motor stator to generate no magnetic field within this interval. The motor rotor runs according to the original inertia. When the rotor is outside the critical area, the drive control signal is in the normal driving state, which will drive the motor stator A magnetic field is generated in a predetermined manner to accelerate the motor. A simple description of 5-4 turns: The preferred embodiment of the present invention will be supplemented by the following figures in the following explanatory text: The first picture is brushless Flow chart of a DC motor driving method; Figures 2A to 2D are cross sections of a brushless DC motor stator and outer rotor operating mechanism; and third is the main method of the brushless DC motor driving method of the present invention. Process 1ST-group. The fourth diagram is a flowchart of the preferred embodiment of the brushless DC remote driving method according to the present invention. The fifth diagram is the sensing and control signal timing circle of the most # embodiment shown in the fourth diagram of the present invention. And private paper scales are suitable for Chinese National Standards (CNS) A4 specifications (210X297 mm)! One --- one -------- ^ ------ 1T ------ ^ I- -(Please read the note on the back first and then fill out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 456093 A7 B7 Figure V. Description of the invention () The sixth picture is the perfect picture of the fourth picture of the invention The circuit of the actual example achieves 5-5 invention details. Jw description: This invention discloses-a brushless DC motor The rotation control method adopts the drive control method with section disabling to enable the motor to run smoothly in accordance with its inertia within the critical section where the stator magnetic field is alternating, and will not generate a reverse force due to the time delay of the circuit signal. The third figure shows the Mm diagram of the operation control method for the interval disablement of the brushless DC motor according to the present invention. The Hall sensor senses the magnetic pole distribution of the motor rotor (step 301); then according to the Hall sensor The driving control signal is generated by the sensing signal (step 302, the driving control signal will generate a different response according to whether the position of the rotor reaches a critical area '(step 303). This critical area is a For a certain period of time or a specific position (the two are related by the speed of the motor), the magnetic field of the motor stator will alternate after the rotor passes through the critical area. When the rotor is located outside the critical area, the drive control signal is in a normal driving state, which will drive the motor stator to generate a magnetic field in a predetermined manner to accelerate the rotation of the motor rotor (step 304). When the rotor is in the critical region, the drive control signal is in a disabled state, which will prevent the motor stator from generating a magnetic field in this interval (that is, there is no current flow through the stator coil), so the motor rotor is not subjected to magnetic force. No tangential acceleration is generated, and operation is performed according to the original inertia (step 305). This paper uses the Chinese national standard < CNS) A frame ΙΤ1Γ〇χ 297 mm I!-I .......--..... 1 I * I-_ .n — II -II 1— * • 、-° (Please read the notes on the back before filling out this page) Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 45 609 3 A7 B7 V. Description of the invention () The fourth picture is the most important of the invention Flowchart of the embodiment. In this embodiment t ', a Hall sensor is arranged on the center line of the two stator arms' to sense the magnetic field strength of the rotor poles and generate two sensing signals HP and ΗNl (step 401). See the timing of the sensing and control signals shown in the fifth figure. Relative to a reference potential, the two sensing signals Hp and HN generated by the Hall sensor are large and reverse, and the intersection of the two signals is Is the critical position of the rotor; that is, when the rotor is at the critical position, the Hall sensor is located at the intersection of the two magnetic poles of the rotor, and the two sensing signals Η P and Η N are just at the reference potential of the Hall sensor. When a four-pole rotor and a four-arm stator are used as shown in the second figure, the rotor will pass through four critical positions while avoiding rotation. Before and after a neighboring position P1, the sensing signal HP will gradually rise from the first sensing level to the second sensing level; and before and after the next neighboring position P2, it gradually rises from the second sensing level to the first Sensing the level, the sensing signal Η N is the opposite. The potential difference between the first sensing level and the second sensing level is the saturation output potential difference of the Hall sensor. Then, a first reference signal Vrefl is generated according to the predetermined disabled interval, and the first reference signal Vrefl is used to determine the range of the critical area on both sides of the critical position (step 402). After the first reference signal Vrefi is determined, the two reference signals HP and HN are compared based on the first reference signal to generate two non-overlapping signals SP and SN (step 403). Among them, during the period when the sensing signal HP is greater than the first reference signal Vrefl, the non-overlapping signal SP is at a high level; while during the period when the sensing signal HP is less than the first reference signal Vren, the paper standard applies the Chinese national standard (CNS ) A4 specification (2 Ιχχ297 mm) f 谏 read the precautions on the back first and then go to the homepage] Order the printed copy of the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 456093 A7 B7 V. Description of the invention () (Please read first Note the item $ on the back and then fill out the original text) so that the non-overlapping signal SP is at a low level. Similarly, during the period when the sensing signal HN is greater than the first reference signal ^^ 6 £ 1, the non-overlapping signal SN is set to a high level; while during the period when the sensing signal HN is less than the first reference signal, the non-overlapping signal is enabled. The signal Sn is at a low level. When the first reference signal Vreil is greater than the reference potential of the Hall sensor, the signals SP and SN will not be at the same high level, so they are called non-overlapping signals; and within a certain period of time before and after the critical position, the two non-overlapping signals SP and SN will be at a low level at the same time. This period (a, b) is the selected critical area. Printed by the 8th Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs According to the two non-overlapping signals SP and SN, a control signal Ctrl is output. When the two non-overlapping signals SP and SN are in the low level state at the same time, a disable indication state is output 'and the general indication state is output in the remaining periods (step 404). This can be achieved by one-OR gate operation or inverse OR gate logic operation; when the OR gate operation is adopted, the disabled indication state is a low level state; and when the inclusive OR logic operation is adopted, the 'disable indication state is high level Quasi-state; in the embodiment shown in the fifth embodiment, the high-level state is used as the disable indication state. Since SP and SN are at the low level at the same time only in the critical region, the control signal Ctr! Will be in the disabled state in the critical region. Therefore, this control signal ctrl can be used as the driving signal, so that the motor is set to generate an alternating magnetic field in the non-critical region in accordance with the driving requirements of the rotor magnetic poles. In the critical region, no magnetic field is generated, and the purpose of interval disabling is achieved. The same control signal Ctrl can also use different methods of the same principle. The paper size is applicable to the Chinese National Standard (CNS) A4 (210X29? Mm) 4 5 6 0 9 3 Member of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 Consumption Cooperation Du printed A7 B7 V. Description of the invention () For example, the first reference signal Vreft is smaller than the reference potential of the Hall sensor, and then when the sensing signal HP or HN is smaller than the first reference signal Vrefl, the non-overlapping signals SP > and SN are at a high level; otherwise, they are low. Quasi-status. The signals SP 'and SN' obtained in this way are exactly the SN and SP 'in the fifth frame, and the same OR gate operation or reverse OR gate operation can obtain the same control signal Ctri. In addition, it is also possible to make the first reference signal Vrefi smaller than the reference potential of the Hall sensor, and then output a high level state when the sensing signal HP or HN is greater than the first reference signal Vren; otherwise, the low level state of the book results in two overlaps. The signals SP " and SN ", and the gate operation give the same control signal Ctri. The control signal Ctrl is used to drive Ma Yuan to run, and the control signal Ctr [can be directly used as the driving signal, or other methods can be used to control the motor speed. In an embodiment of the present invention, a pulse width modulation method (Pulse Width Modulation, PWM) is used in combination with the control signal Ctrl to further control the motor speed. Generate a pulse width modulation signal PWM (step 405) »The pulse width modulation signal PWM is generated by comparing a Saw tooth signal Saw with a second reference signal Vref as a reference. This _ sawtooth wave signal can be generated by charging and discharging the capacitor. If the control signal Ctrl is used to control the conduction of the capacitor discharge circuit, the fundamental frequency recorded tooth wave has the lowest level state in the critical region. After the pulse width modulation, when the sawtooth wave signal Saw is greater than the second reference signal Vref2, the pulse width modulation signal PWM is at a high level J ----------------------- --Order ------. Ball »* (Please read the notes on the back before filling in this page}

« Τ /TJ * 7 ί 4 5 609 3 A7 B7 經濟部智慧財產局員工消費合作杜印製 五、發明説明（） 態；而在鋸齒波訊號Saw小於第二參考訊號Vref2的時段 内’脈波寬度調變訊號PWM處於低位準狀態。在臨界區 域中’由於鋸齒波訊號S a w處於最低位準狀態，脈波寬度 調變訊號PWM也必然處於低位準狀態。而在臨界區域之 外’只要調整第二參考訊號VrefZ的參考位準，即可改變腺 波寬度調變訊號PWM中’致能指示狀態（在本實施例中爲 高位準狀態）的區段比例，從而達到馬達速控的目的。此一 區段比例，與指定轉速相對於馬達最大轉速的比例成正比 關係（非必然爲線性）’所指定的轉速越高，致能指示狀態 的區段比例越大。 上述脈波寬度調變訊號PWM可以直接採用以作爲速 控訊號，驅動馬達按照所指定的致能與禁能區間比例運 轉’既可控制轉速’並具有使馬達定子於臨界區域内禁能 而不產生磁場的效用，可使轉子的運轉不受電路訊號延遲 所影響。此外，也可以將脈波寬度調變訊號PWM與控制 訊號Ctrl結合，以或閘邏輯運算產生一速控調變訊號CP， 此速控調變訊號CF將在臨界區域（a,b)以及脈波寬度調變 訊號PWM的高位準區域（c,a)内’處於高位準狀態。將此 速控調變訊號CP反相，即得到一驅動訊號Drive(步驟 406)’在臨界區域以及脈波寬度調變訊號PVVm的高位準區 域内，處於低位準狀態，同時達到區間禁能以及速度控制 的目的最後’以此一驅動訊號Drive控制定子磁場的產 生’而驅動馬達的運轉（步驟407)。 12 本紙張尺度速用中國國家揉準（CNS ) A4規格（210Χ297公釐） —裝----^----订-----— t (請先閱讀背面之注意事項再填寫本頁) 4 5 6 0 9 3 A7 B7 五、發明説明（） ^^^1 I J - - - ^^^^1 i^i^i - i I (請先閲讀背面之注意事項再填寫本頁) 第六圖爲本發明第四圖所示最佳實施例的電路達成 圖。其中，比較器（Comparator)610及620接收來自霍爾 感應器的二感測訊號HP及HN(通常經過運算放大至比較 器的工作範圍），並以所接收的第一參考訊號參考訊號Vrefl 爲基準，將感測訊號HP及HN轉換成二非重疊訊號SP及 SN »二非重疊訊號SP及SN以反或閘（NOR Gate)630進行 邏輯運算，得到於臨界區域内爲高位準狀態的控制訊號 Ctil。以此控制訊號Ctrl控制鋸歯波產生雷路640的放電時 間，即可得到一在臨界區域中爲最低位準狀態的基頻錄齒 波 Saw。 經濟部智慧財產局員工消費合作社印製 在一簡單實施例中，採用一電容器642、一電阻器644 以及一場效電晶體646作爲電子開關，構成此鋸齒波產生 電路640。其f ’電晶體646的控制閘極搞合至控制訊號 Ctrl，源極與汲極分别連接至電容器642的兩端。電容器 642 —端接地，另一端經由電阻器644耗合至一供應雷壓 Vsaw ’並輸出鋸齒波訊號Saw至比較器650之令。比較器 650接收第二參考訊號Vrefa爲基準，以對鋸齒波訊號Saw 進行脈波寬度調變，並輸出脈波寬度調變訊號pwM。 比較器650所輸出的脈波寬度調變訊號，以及反 或閘630所輸出的控制訊號Ctrl由或閘（〇R Gate)66〇接 收，以進行邏輯運算，而輸出速控調變訊號cp至反相器 本紙張尺度通用中i國家揉準（CNS ) A4規格（210X297公釐)"" "· 1 — 經濟部智慧財產局員工消費合作社印製 45 609 3 A7 _________B7____ 五、發明説明（） 670中。反相器670則輸出驅動訊號Driv。經由此一電路， 霍爾感應器的輸出訊號HP及HN依序轉換成非重疊訊號 SP及SN、控制訊號Ctrl、脈波寬度調變訊號PWM '速控 調變訊號CP、以及驅動訊號Driv，以進行馬達區間禁能 之運轉驅動。 採用以上所述的方珐及電路裝置實施例，本發明可以 根據霍爾感應器的感測訊號HP及HN，產生一區間禁能的 控制訊號，以驅動馬達運轉，而於定子磁場交變點（轉子臨 界位置）前後的臨界區域内，使定子線圈禁能，不產生線圈 電流及感應磁場，不至於因電路訊號的時間延遲而產生反 向作用力’影響轉子的轉動。本發明並可以配合脈波寬度 調變方法（PWM)，以驅動時段的比例調整方式，進行轉子 的速度控制。 在本發明上述控制方法中所產生的各訊號，包含控制 訊號Ctrl、脈波寬度調變訊號pwm、速控調變訊號cp、 以及驅動訊號Driv等，均可以作爲驅動訊號，達到上述區 間禁能的驅動目的。而且所有邏輯運算都可以採用相同的 原則，相反的位準高低狀態，配合相對應的電路設計，以 相反的形式達到同樣的目的。例如，對訊號進行反或閉運 算’等於先將訊號予以反相，再進行及閘運算；而對^號 進行或閘運算，等於先將訊號予以反相，再進行反及閉運 算，凡此等等。此時第六圖所示電路中的邏輯運算器，士 1^---------—裝------訂------^ ♦ - / (請先閲讀背面之注意事項再填寫本頁)«Τ / TJ * 7 ί 4 5 609 3 A7 B7 Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperation, Du V. Invention Description () State; and in the period when the sawtooth signal Saw is less than the second reference signal Vref2 The width modulation signal PWM is at a low level. In the critical region ', because the sawtooth wave signal S aw is at the lowest level, the pulse width modulation signal PWM must also be at the low level. Outside the critical region, 'as long as the reference level of the second reference signal VrefZ is adjusted, the ratio of the sections in the gland wave width modulation signal PWM' enabling indication state (high level state in this embodiment) can be changed. , So as to achieve the purpose of motor speed control. This segment ratio is proportional to the ratio of the specified speed to the maximum speed of the motor (not necessarily linear). The higher the speed specified, the larger the ratio of the segment that enables the indication status. The above-mentioned pulse width modulation signal PWM can be directly used as a speed control signal. The drive motor runs according to the specified enable and disable interval ratio. 'It can control the speed' and has the function of disabling the motor stator in a critical area without The effect of generating a magnetic field keeps the rotor from being affected by the delay of the circuit signal. In addition, the pulse width modulation signal PWM and the control signal Ctrl can also be combined to generate a speed control modulation signal CP by OR logic operation. This speed control modulation signal CF will be in the critical area (a, b) and the pulse. The high level region (c, a) of the wave width modulation signal PWM is in a high level state. Invert this quick-control modulation signal CP to obtain a drive signal Drive (step 406). In the critical region and the high-level region of the pulse width modulation signal PVVm, it is in a low-level state, and the interval disable and The purpose of the speed control is to finally 'drive the stator magnetic field with this drive signal Drive' to drive the motor (step 407). 12 This paper is a quick-use Chinese national standard (CNS) A4 specification (210 × 297 mm) —packed ---- ^ ---- ordered -----— t (Please read the precautions on the back before filling in this Page) 4 5 6 0 9 3 A7 B7 V. Description of the invention () ^^^ 1 IJ---^^^^ 1 i ^ i ^ i-i I (Please read the precautions on the back before filling this page) The sixth diagram is a circuit implementation diagram of the preferred embodiment shown in the fourth diagram of the present invention. Among them, Comparator 610 and 620 receive the two sensing signals HP and HN from the Hall sensor (usually amplified to the working range of the comparator), and use the received first reference signal reference signal Vrefl as The benchmark converts the sensing signals HP and HN into two non-overlapping signals SP and SN »The two non-overlapping signals SP and SN are logically operated with an anti-or gate (NOR Gate) 630 to obtain a high level control in the critical region Signal Ctil. Based on this control signal, Ctrl controls the discharge time of the thunder wave 640 to generate the fundamental frequency recording tooth wave Saw which is the lowest level state in the critical region. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In a simple embodiment, a capacitor 642, a resistor 644, and a field effect transistor 646 are used as electronic switches to form the sawtooth wave generating circuit 640. The control gate of the f 'transistor 646 is connected to the control signal Ctrl, and the source and the drain are connected to the two ends of the capacitor 642, respectively. The capacitor 642 is grounded at one end, and the other end is dissipated to a supply lightning voltage Vsaw ′ through a resistor 644 and outputs a sawtooth wave signal Saw to the order of the comparator 650. The comparator 650 receives the second reference signal Vrefa as a reference, performs pulse width modulation on the sawtooth wave signal Saw, and outputs a pulse width modulation signal pwM. The pulse width modulation signal outputted by the comparator 650 and the control signal Ctrl outputted by the inverse OR gate 630 are received by OR gate 66〇 for logical operation, and the speed control modulation signal cp is output to Inverter This paper is standard in the Chinese standard (CNS) A4 size (210X297 mm) " " " · 1 — Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 45 609 3 A7 _________B7____ 5. Description of the invention () 670. The inverter 670 outputs a driving signal Driv. Through this circuit, the output signals HP and HN of the Hall sensor are sequentially converted into non-overlapping signals SP and SN, control signals Ctrl, pulse width modulation signals PWM 'speed control modulation signals CP, and driving signals Driv, In order to drive the motor section disabled. By adopting the embodiments of the square enamel and the circuit device described above, the present invention can generate a control signal with an interval of disabling according to the sensing signals HP and HN of the Hall sensor to drive the motor to run, and at the stator magnetic field alternating point (Rotor critical position) In the critical area before and after, the stator coil is disabled, no coil current and induced magnetic field are generated, and no reverse force is generated due to the time delay of the circuit signal, which affects the rotation of the rotor. The invention can also cooperate with the pulse width modulation method (PWM) to control the speed of the rotor in a proportional adjustment manner of the driving period. Each signal generated in the above-mentioned control method of the present invention, including the control signal Ctrl, the pulse width modulation signal pwm, the speed control modulation signal cp, and the driving signal Driv, etc., can be used as the driving signal to achieve the above-mentioned interval disabling. Driving purpose. And all logic operations can use the same principle, the opposite level of high and low states, and the corresponding circuit design to achieve the same purpose in the opposite form. For example, inverting or closing the signal 'is equivalent to first inverting the signal and then performing the AND operation; while performing ORing on the ^ signal is equivalent to inverting the signal before performing the inverse and closure operation. and many more. At this time, the logic operator in the circuit shown in the sixth figure is 1 ^ --------------------------------------- ^-/ (Please read the back first (Notes for filling in this page)

5 4 6 09 3 A7 Π7 —-------— ' " '五_、發明說明（） 反或閘（NOR Gate)630、或閘（OR Gate)660或是反相器 6 70，都可以採用相對應的邏輯運算器予以取代。 以上所述僅爲本發明之較佳實施例而已，並非用以限 定本發明之申請專利範園；凡其它未脱離本發明所揭示之 精神下所完成之等效故變或修飾’均應包含在本發明的保 護範圍内。例如其它形式的脈波寬度調變電路’都可以配 合本發明使用；且凡以揀制訊號所從事的進一步訊號組 合，也均包含在本發明下述之中請專利範圍中。 (琦先閱¾背面之注意事項再填寫本頁} 經濟部智慧財產局員工消費合作社印製 fl 對照说明： 110 馬達定子 112 定子支臂 114 定子支臂 116 定子支臂 118 定子支臂 120 馬達轉子 122 N極 124 S極 126 N極 128 S極 130 霍爾感應器 610 比較器 620 比較器 630 反或閘 640 鋸齒波產生電路 642 電容器 644 電阻器 64 6 場效電晶體 650 比較器 660 或閘 670 反相器 本紙張反度適用中國囷家標準（CNS)A4規烙（210 > ----1---訂-------1·,^5 4 6 09 3 A7 Π7 —-------— '"' Five _, description of the invention () NOR gate 630, OR gate 660 or inverter 6 70 , They can be replaced by corresponding logic operators. The above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the patent application scope of the present invention; all other equivalent alterations or modifications that have been made without departing from the spirit disclosed by the present invention should be used. It is included in the protection scope of the present invention. For example, other forms of pulse width modulation circuits can be used in conjunction with the present invention; and any further signal combinations engaged in picking signals are also included in the scope of patents of the present invention described below. (Please read the notes on the back of ¾ before filling out this page} Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs fl Contrast description: 110 Motor stator 112 Stator arm 114 Stator arm 116 Stator arm 118 Stator arm 120 Motor rotor 122 N pole 124 S pole 126 N pole 128 S pole 130 Hall sensor 610 Comparator 620 Comparator 630 Reverse OR gate 640 Sawtooth wave generating circuit 642 Capacitor 644 Resistor 64 6 Field effect transistor 650 Comparator 660 or Gate 670 Inverter This paper's inversion is applicable to China National Standard (CNS) A4 Regulation (210 > ---- 1 --- Order ------- 1 ·, ^

Claims (1)

456093 經濟部智慧財產局員工消費合作社印製 A8 B8 C8 D8 申請專利範圍 中請專利範圔： 1 ·—種無刷式直流馬達的驅動方法，該方法以馬達定子 的線圈的感應磁場對馬達轉子的磁極所產生的磁力之切 向分力’驅動該馬達轉子按照預定的方向轉動，當該馬 達轉子的該磁極轉動到一相對於該定子磁場的臨界位置 後’原該定子磁場的極性分佈情形將會在該轉子磁極上 產生與轉子轉動方向相反的切線分力，此時該定子線圏 的該感應磁場的極性產生交變，驅使該轉子繼績朝原方 向轉動，該方法包含： 感測該馬達轉子該磁極的分佈； 產生驅動控制訊號，在該轉子到達該臨界位置前後一指 定時段的禁能區間内，該驅動控制訊號處於—禁能指示狀 態； 以該驅動控制訊號控#該定子磁場的產生與交變，當該 驅動控制訊號處於該禁能指使狀態時，不產生該定子磁場； 並 以該定子磁場產生的磁力驅動該轉子運轉。 2. 如申請專利範圍第1項之方法，其中上述馬達轉子該 磁極分佈的感測，以一霍爾惑應器（Hall Sensor)進行。 3 . 如申請專利範圍第1項之方法，其中在上述感測該馬 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公爱） (諳先閱讀背面之;i意事項再填寫本頁) I裝---- 訂----------竣 經濟部智慧財產局員工消費合作社印製 r 6 Ο 9 3 A8 B8 C8 D8 六、申請專利範圍 達轉子該磁極分佈的步驟中，產生依據該馬達轉子磁極 分佈而變的一第一感測訊號及一第二感測訊號，在該馬 達轉子到達該臨界位置前後，該第一感測訊號由一第一 感測位準逐漸變化到一第二感測位準，而該第二感測訊 號則由該第二感測位準逐漸變化到該第一感測位準。 4. 如申請專利範圍第3項之方法，其中在上述產生驅動 控制訊號的步驟中，更包含下列步驟： 產生一第一參考訊號以決定一禁能區間，該禁能區間包 含該臨界位置； 產生一對應於該第一感測訊號的第一非重疊訊號，當該 第一感測訊號的位準大於該第一參考訊號位準時，該第一非 重疊訊號處於一第一控制位準，而當該第一感測訊號的位準 小於該第一參考訊號位準時，該第一非重疊訊號處於一第二 控制位準； 產生一對應於該第二感測訊號的第二非重疊訊號，當該 第二感測訊號的位準大於該第一參考訊號位準時，該第二非 重疊訊號處於該第一控制位準，而當該第二感測訊號的位準 小於該第一參考訊號位準時，該第二非重疊訊號處於該第二 控制位準；並 以該第一非重疊訊號及該第二非重疊訊號作爲該驅動 控制訊號。 5. 如申請專利範圍第4項之方法，其中上述之第一非重 本紙張尺度適用中國國家標準（CNS)A4規格（210 * 297公S ) (請先閱讀背面之泫意事項再填寫本頁) | ------ ,----------( ^ 45 609 3 A8 B8 C8 D8 f、申請專利範圍 疊訊號及上述之第二非重疊訊號，於該禁能區間内處於 同一位準，使該馬達定子於該禁能區間内不產生感應磁 場。 6. 如申請專利範圍第4項之方法，其中上述之定子磁場 的產生與控制，以一控制訊號進行，在該第一非重疊訊 號及該第二非重疊訊號處於同一位準的該禁能區間内， 該控制訊號輸出禁能指示位準，該馬達定子於該禁能指 示位準下不產生感應磁場。 7. 如申請專利範圍第6項之方法，其中上述之定子磁場 的產生與控制，以一脈波寬度調變訊號進行，該脈波寬 度調變訊號將該第一非重疊訊號及該第二非重疊訊號不 處於同一位準的區間7區分爲一第一速控區間及一第二 速控區間，並於該禁能區間及該第一速控區間輸出該禁 能指示位準，而於該第二速控區間輸出一致能指示位 準，其中該馬達定子於該致能指示位準下產生感應磁 場。 8. 如申請專利範圍第7項之方法，其中上述之第二速控 區間及上述之第一速控區間的長度比例，按照所指定的 轉速高低進行區分，所指定的轉速越高，該第二速控區 間的長度比例越大β 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） It i I n n- n n - I I I - i tt In ] n I 一3J I I I n I— i [ I (請先閱讀背面之4意事項再填寫本頁) 經濟邨智慧財產局員工消費合作社印製 45 609 3 B8 _____a 、申請專利範圍 9·如申請專利範圍第7項之方法，其 的產生與控制，以一速控調變訊號進二=定子礎場 號在該禁能區間及該第二速控區丁 3揸調變訊 ..^ 1内’輸出該禁能沪- 位準在該卜速控區間内，輸出該致能指示位準\不 10.如申請專利範圍第4項之方法， 六T上迷 < 足子斑 的產生與控制，以一驅動電路進彳干 八· 逛仃，孩驅勤電路至少包 3 * —第—比較器，包含二第一比較器輪入端及—第—.. 器輸出端，其中該二第-比較器輸入端分㈣合至 H 測訊號與該第一參考訊號； 人 _感 -第二比較器’包含二第二比較器輸入端及一第 器輸出端’其中該二第二比較器輸入端分别耦合至該第二或 測訊號與該第一參考訊號；以及 一邏輯運算器，用以將該第一比較器的輸出訊號與該第 二比較器的輸出訊號處於同一邏輯狀態的時段，與非處於同 一邏輯狀態的時段予以區分，作爲馬達驅動的依據，該邏^ 運算器包含二邏輯輸入端及一邏輯輸出端，其中該二邏輯輸 入端分别耦合至該第一比較器輸出端及該第二比較器輪 端。 11.如申請專利範圍第10項之方法，其中上述之邏輯運算 器爲一反或閘（NOR Gate)運算器。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公堃） (請先閱讀背面之注意事項再填筲本頁) 一裝： 經濟邠智慧財產局貝工消費合作社印製 ABCD 456093 六、申請專利範圍 12.如申請專利範圍第10項之方法，其中上述之邏輯運算 器爲一或閘（OR Gate)運算器<= 1 3 .如申請專利範圍第10項之方法，其中上述之邏輯運算 器爲一及閘（AND Gate)運算器。 14. 如中請專利範圍第10項之方法，其中上述之邏輯運算 器爲一反及閘（NAND Gate)運算器。 15. 如申請專利範圍第10項之方法，其中上述之驅動電路 更包含一脈波寬度調變電路，該脈波寬度調變電路包含 一控制端、一參考端、一脈波調變輸出端、一接地端以 及一供應電壓端，其中該控制端耦合至該反或閘輸出 端，該接地端接地，該供應電壓端耦合至一供應電壓。 16. 如申請專利範圍第15項之方法，其中上述脈波寬度調 變電路包含下列元件： 一鋸齒波產生電路，包含該控制端、該接地端、該供應 電壓端以及一鋸齒波輸出端；以及 一第三比較器，包含二第三比較器輸入端及一第三比較 器輸出端，其中該二第三比較器輸入端分别耦合至該參考端 與該鋸齒波輸出端，而該第三比較器輸出端即爲該脈波調變 輸出端。 20 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----1------- -------—訂'-------_丨^ (锖先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員Η消費合作社印製 456093 A8 B8 C8 D8 六、申請專利範圍 1 7 .如申請專利範圍第16項之方法，其中上述鋸齒波產生 電路包含下列元件： 「 _電容器，包含該鋸齒波輸出端及該接地端； 一電阻器，一端棋合至該链齒波輸出端，另一端爲該供 應電壓端；以及 一電子開關，耦合於該電容器的該鋸齒波輸出端及該接 地端之間，並具有該控制端。 1 8 .如申請專利範圍第17項之方法，其中上述之電子開關 爲一電晶體。 1 9 .如申請專利範圍第17項之方法，其中上述之電子開關 爲一場效電晶體。 20.如申請專利範圍第19項之方法，其中上述場效電晶體 的閘極爲該電子開關的該控制端，該場效電晶體的源極 與汲極耦合於該電容器的該鋸齒波輸出端及該接地端之 間。 --- -II —ί Γ— I — n H I j - -- ί I 4fc n ff 一 .1* I ^1- _ [ [ Hr I -- (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員x消費合作社印製 器 算 第運 圍輯 範邏 利二 專第 請一 申含 如包 •更 2 路的 t器 動算 驅運 之輯 述邏 上一 中第 其該 在 以 用 法 方 之 項 中該 號， 訊據 出依 輸的 的動 路驅 電達 變馬 調爲 度作 寬， 波合 脈組第 該以二 與予含 號段包 訊時器 出的算 輸定運 及 端 入 輸 輯 邏二 輸 輯 遜二 第 特輯其 出邏， 選二端 ， 第出 2 本紙張尺度適用中國國家標準（CNS)A4規袼（2KM 297公釐） 456093 A8 B8 C8 D8 t、申請專利範圍 中該二第二邏輯輸入端分别耦合至該脈波調變輸出瑞及 第一邏輯輸出端。 22. 如申請專利範圍第21項之方法，其中上述之第二邏輯 運算器爲一反或閘運算器。 23. 如申請專利範圍第22項之方法，其中上述之驅動電路 更包含一反相器，該反相器包含一反相器輸入端及一反 相器輸出端，其中該反相器輸入端耦合至該或閘輸出 端。 24. 如申請專利範圍第1項之方法，其中上述之禁能區 間，由一參考訊號對該馬達轉子該磁極之感測訊號進行 比較而決定。 2 5 .如申請專利範圍第1項之方法，其中上述之驅動控制 訊號的產生，配合一脈波寬度調變方法（Pulse Width Modulation, PWM)進行，以產生具有速度控制功能之該 驅動控制訊號。 2 6 . —種無刷式直流馬達的驅動方法，該方法以馬達定子 的線圈的應磁場對馬達轉子的磁極所產生的磁力之切向 分力，驅動該馬達轉子桉照預定的方向轉動，當該馬達 轉子的該磁極轉動到一相對於該定子磁場的臨界位置 22 ------------ 1 ---------訂-------- (請先閱讀背面之达意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 297公釐） 456093 £8008 ^BaD 申請專利範圍 後，原該定子磁場的極性分佈情形將舍 產生與轉子轉動方向相反的切線分力， 磁極上 此*時該定不始® I 的該感應磁場的極性產生交變，驅俅却紅 心丁，承图 ^ ^, 轉子繼續朝序方 向轉動，該方法包含： If期布刀 產生依據該馬達轉子磁極分佈而樂的 第一卑1测ifi號 及一第二感測訊號，在該馬達轉子到達該 ^ ^ 芬臨界位置前後，該 弟一感測訊號由一第一感測位準逐漸狻彳μ 杜 匕到—第二感測位 準’而該第二感測訊號則由該第二感測位 1 +遂漸變化到該第 一感測位準； .產生-第—參考訊號以決定-禁能區間，該禁能區間包 含該臨界位置； ，產生一對應於該第一感測訊號的第—非重έ訊號，當該 第一感測訊號的位準大於該第一參考訊號位準時，該第一非 重疊訊號處於一第一控制位準，而當該第—感測訊號的位準 小於該第一參考訊號位準時’該第一非重疊訊號處於一第二 控制位準； 產生'一對應於該第·一感測訊號的弟二非重疊訊號，當該 第二感測訊號的位準大於該第一參考訊號位準時，該第二非 重疊訊號處於該第一控制位準，而當該第二感測訊號的位準 小於該第一參考訊號位準時，該第二非重疊訊號處於該第二 控制位準；並 以該第一非重疊訊號及該第二非重鲞訊號控制該定子 磁場的產生。 23 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公餐） <諳先閱讀背面之注意事項再填寫本頁> 一^^---- -----訂-- --- n I 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印¾ 6 0 9 3 ab B8 C8 D8 t、申請專利範圍 2 7 .如申請專利範圍第26項之方法，其中上述之第一非重 疊訊號及上述之第二非重疊訊號，於該禁能區間内處於 同一位準，使該馬遠定子於該禁能區間内不產生感應磁 場° 28. 如申請專利範圍第26項之方法，其中上述之定子磁場 的產生與控制，以一控制訊號進行，在該第一非重疊訊 號及該第二非重疊訊號處於同一位準的該禁能區間内， 該控制訊號輸出禁能指示位準，該馬達定子於該禁能指 示位準下不產生感應磁場= 29. 如申請專利範圍第28項之方法，其中上述之定子磁場 的產生與控制，以一脈波寬度調變訊號進行，該脈波寬 度調變訊號將該第一非重疊訊號及該第二非重疊訊號不 處於同一位準的區間，區分爲一第一速控區間及一第二 速控區間，並於該禁能區間及該第一速控區間輸出該禁 能指示位準，而於該第二速控區間輸出一致能指示位 準，其中該馬達定子於該致能指示位準下產生感應磁 場。 30. 如申請專利範圍第29項之方法，其中上述之第二速控 .區間及上述之第一速控區間，按照指定轉速相對於該馬 達最大轉速的比例區分。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ------------ --------訂.--------竣 (請先閱讀背面之注意事項再填寫本頁) 4 5 6 0 9 3 A8 B8 C8 D8 經濟部智慧財產局員工消費合作社印製 申請專利範圍 3 1 ·如申請專利範圍第29項之方法，其中上诚少含工 处之疋子嗞場 的產生與控制，以一速控調變訊號進行，該速控調變訊 號在该禁能區間及該第二速控區間内’輸出該禁能产 位準，而'在該第一速控區間内，輸出該欵能指示位準τ 3 2 ·如申請專利範圍第26項之方法，其中上述馬達轉子二 磁極分佈的感測以及該第一感測訊號與核m — ” 吊一恐甽訊號 的產生，以一霍爾感應器連行。 3 3 .如申請專利範圍第26項之方法，其中上 返之疋子礤場 的產生與控制，以一驅動電路進行，該駆動電路至〗、勺 含： y包 一第一比較器，包含二第一比較器輸入想 布及一弟一比較 器輸出端’其中該二第一比較器輸入端分别轉合至該第— 測訊號與該第一參考訊號； $ 一第二比較器’包含二第二比較器輸入端及一第二比較 器輸出端’其_該·一第一比較器輸入端分别輕合至該第二戌 測訊號與該第一參考訊號；以及 ' —邏輯運算器，用以將該第一比較器的輸出訊號與該第 二比較器的輸出訊號處於同一邏輯狀態的時段，與非處於同 一遲輯狀態的時段予以區分’作爲馬達驅動的依據，該邏輯 運算器包含二邏輯輸入端及一邏輯輸出端，其中該二遇辑輪 入端分别耦合至該第一比較器輸出端及該第二比較器輸出 端。 25 本紙張尺度通用中國國家標準（CNS)A4規格（210 X 297公釐） ------------- -裝--------訂---------吃 f琦先閱續背面V泛意事項4填寫本頁) 45 609 3 AS B8 C8 D8 六、申請專利範圍 34. 如申請專利範圍第33項之方法，其中上述之邏輯運算 器爲一反或閘（NOR Gate)運算器。 35. 如申請專利範圍第33項之方法，其中上述之邏輯運算 器爲一或閘（OR Gate)運算器。 36. 如申請專利範圍第33項之方法，其中上述之邏輯運算 器爲一及閘（AND Gate)運算器。 37. 如申請專利範圍第33項之方法，其中上述之邏輯運算 器爲一反及閘（NAND Gate)運算器。 38. 如申請專利範圍第33項之方法，其中上述之驅動電路 更包含一脈波寬度調變電路，該脈波寬度調變電路包含 一控制端、一參考端、一脈波調變輸出端、一接地端以 及一供應電壓端，其中該控制端耦合至該反或閘輸出 端，該接地端接地，該供應電壓端耦合至一供應電壓。 3 9 .如申請專利範圍第38項之方法，其中上述脈波寬度調 變電路包舍下列元件： 一鋸齒波產生電路，包含該控制端、該接地端、該供應 電壓端以及一鋸齒波輸出端；以及 一第三比較器，包含二第三比較器輸入端及一第三比較 26 本紙張尺度適用中國圉家標準（CNS)A4規格（210 X 297公釐） I — — —— — — —— — — — I ---I 1 1 I i 111111!1 C請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印- 45 609 3 Α8 Β8 CS D8 六、申請專利範園 器輸出端，其中該二第三比較器輸入端分别耦合至該參考端 與該媒齒波輸出端，而該第三比較器輸出瑞即爲該脈波調變 <請先閱讀背面之注意事項再填寫本頁) 輸出端α 40.如申請專剎範圍第39項之方法，其宁上述鋸齒波產生 電路包含下列元件： 一電容器，包含該鋸齒波輸出端及該接地端； —電阻器，一端輕合至該据齒波輸出端，另一端爲該供 應電壓端；以及 一電子開關，搞合於該電容器的該鋸齒波輸出端及該接 地端之間，述真有該控制端。 4 1 .如申請專利範圍第40項之方法，其中上述之電子開關 爲一電晶體。 4 2 .如申請專利範圍第40項之方法，其中上述之電子開關 爲一場效電晶體》 經濟部智慧財產局員工消费合作社印製 43.如申請專利範圍第42項之方法，其中上述場效電晶體 的閘極爲該電子開關的該控制端，該場效電晶體的源極 與汲極耦合於該電容器的該鋸齒波輸出端及該接地端之 間。 44_如申請專利範圍第38項之方法，其中上述之驅動電路 27 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公榮〉 經濟部智慧財產局員工消費合作社印製 456093 A3 B8 C8 D8 t、申請專利範圍 更包含一第二邏輯運算器，用以在該第一邏輯運算器的 輸出訊號與該脈波寬度調變電路的輸出訊號中，選出特 定的時段予以組合，作爲馬達驅動的依據，該第二邏輯 運算器包含二第二邏輯輸入端及一第二邏輯輸出瑞，其 中該二第二邏輯輸入端分别耦合至該脈波調變輸出端及 第一邏輯輸出端。 45. 如申請專利範圍第44項之方法，其中上述之第二邏輯 運算器爲一反或閘運算器。 46. 如申請專利範園第45項之方法，其中上述之驅勤電路 更包含一反相器，該反相器包含一反相器輸入端及一反 相器輸出端，其中該反相器輸入端耦合至該或閘輸出 端。 47. —無刷式直流馬達的驅動電路，該驅動電路接收由感 應器所傳送的二感應訊號，並輸出馬達驅動訊號，該驅 動電路包含： 一第一比較器，包含二第一比較器輸入端及一第一比較 器輸出端，其中該二第一比較器輸入端分别耦合至一感測訊 號與一參考訊號； 一第二比較器，包含二第二比較器輸入端及—第二比較 器輸出端，其中該二第二比較器輸入端分别耦合至該參考訊 號與另一感測訊號；以及 28 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公坌） ---------裝-----———訂--------A (請先閱讀背面之注意事項再填寫本頁) 456093 88009 ABCD 六、申請專利範圍 一邏輯運算器’“將該第-比較器的輪出訊號與該第 二比較器的輸出訊號處於同一邏輯狀態的時段，與非處於同 4輯狀㈣時段予以區分’作爲馬達驅動的依據，該邏輯 運算器包含二邏輯輸入端及—邏輯輸出端，其中該二邏輯輸 入搞分别耦合至該第—比較器輸出端及該第二比較器輸出 端。 48. 如申請專利範園第47項之驅動電路，其中上述之邏輯 運算器爲一反或閘（NOR Gate)運算器。 49. 如申清專利範圍第47項之驅動電路，其中上述之邏輯 運算器爲一或閘（OR Gate)運算器。 50. 如申請專利範圍第47項之驅動電路，其中上述之邏輯 運算器爲一及閘（AND Gate)運算器。 51. 如申清專利範圍第47項之驅動電路，其中上述之邏輯 運算器爲一反及閘（NAND Gate)運算器。 I------ ，裝-----I---訂 r--------'^ f琦先閱讀背面之注意事項再填寫太頁} 經濟部智慧財產局員工消費合作社印S 52.如申請專利範圍第47項之驅動電路，其中更包含一脈 波寬度調變電路，該脈波寬度調變電路包含一控制端、 一參考端、一脈波調變輸出端、一接地端以及一供應電 壓端，其中該控制填輕合至該反或閘輸出端，該接地端 接地，該供應電壓端耦合至一供應電壓。 29 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公t ) 經濟部智慧財產局員工消費合作社印製 456093 AS B8 C8 D8 ^、申請專利範圍 5 3 .如申請專利範圍第52項之驅動電路，其中上述脈波寬 度調變電路包含下列元件： 一鋸齒波產生電路，包含該控制端、該接地端、該供應 電壓端以及一鋸齒波輸出端；以及 一第二比較器，包含二第二比較器輸入端及一第二比較 器輸出端，其中該二第二比較器輸入端分别耦合至該參考端 舆該鋸齒波輸出端，而該第二比較器輸出端即爲該脈波調變 輸出端。 54. 如申請專利範圍第53項之驅動電路，其中上述鋸齒波 產生電路包含下列元件： 一電容器，包含該鋸齒波輸出端及該接地端； 一電阻器，一端耦合至該鋸齒波輸出端，另一端爲該供 應電壓端；以及 一電子開關，耦合於該電容器的該鋸齒波輸出端及該接 地端之間，並具有該控制端。 55. 如申請專利範圍第54項之驅動電路，其中上述之電子 開關爲一電晶體。 56. 如申諳專利範圍第54項之驅動電路，其中上述之電子 開關爲一場效電晶體。 30 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐〉 ------------ -i------^---訂--------i <請先閱讀背面之注意事項再填寫本頁) 456093 888 9? ABCD 經濟部智慧財產局員工消費合作社印*'1^ t、申請專利範圍 5 7 .如申請專利範圍第56項之驅動電路，其中上述場效電 晶體的閘極爲該電子開關的該控制端，該場效電晶體的 源極與汲極耦合於該電容器的該鋸齒波輸出端及該接地 端之間。 58. 如申請專利範圍第52項之驅動電路，其中更包含一第 二邏輯運算器，用以在該第一邏輯運算器的輸出訊號與 該脈波寬度調變電路的輸出訊號中，選出特定的時段予 以組合，作爲馬達驅動的依據，該第二邏輯運算器包含 二第二邏輯輸入端及一第二邏輯輸出端，其中該二第二 邏輯輸入端分别耦合至該脈波調變輸出端及第一邏輯輸 出端。 59. 如申請專利範圍第58項之驅動電路，其中上述之第二 邏輯運算器爲一反或閘運算器。 60. 如申請專利範圍第59項之驅動電路，其中更包含一反 相器，該反相器包含一反栢器輸入端及一反相器輸出 端，其中該反相器輸入端耦合至該或閘輸出端。 61. —無刷式直流馬達的驅動電路，該驅動電路接收由感 應器所傳送的二感應訊號，並輸出馬達驅動訊號，該驅 動電路包含： 一第一比較器，包含二第一比較器輸入端及一第一比較 31 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） ------------ -^------^---訂·--------'^' {請先閱讀背面之注意事項再填寫本頁> 456093 A8B8C8D8 經濟部智慧財產局員工消費合作社印製 〇、申請專利範圍 器輸出端’其中該二第一比較器輸入端分别耦合至一感測訊 號與一參考訊號； 一第二比較器’包含二第二比較器輸入端及一第二比較 器輸出端，其中該二第二比較器輸入端分别耦合至該參考訊 號與另一惑測訊號； —第一邏輯運算器，用以將該第一比較器的輸出訊號與 該第二比較器的輸出訊號處於同一邏輯狀態的時段’與非處 於同一邏輯狀態的時段予以區分，作爲馬達驅動的依據，該 第一邏輯運算器包含二第一邏輯輸入端及一第一邏輯輸出 端，其中該二第一邏輯輸入端分别耦合至該第一比較器柃出 端及該第二比較器輸出端； 一脈波寬度調變電路，該脈波寬度調變電路包含一控制 端、一參考端、一腺波調變輸出端、一接地端以及一供應電 壓端’其中該控制端耦合至該反或閘輸出端’該接地端接 地，該供應電壓端耦合至一供應電壓；以及 一第二邏輯運算器，用以在該第一邏輯運算器的輸出訊 號與該脈波寬度調變電路的輸出訊號中，選出特定的時段予 以組合，作爲馬達驅動的依據，該第二邏輯運算器包含二第 二邏輯輸入端及一第二遇輯輸出端，其中該二第二邏輯輸入 端分别耦合至該脈波調變輸出端及第一邏輯輸出端。 62.如申請專利範圍第61項之驅動電路，其中上述之第一 邏輯運算器爲一反或閘（NOR Gate)運算器。 32 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公餐） -裝------_—訂---------4 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消费合作社印製 456093 A8 B8 C8 D8 六、申請專利範圍 63_如申請專利範園第61項之驅動電路，其中上述之第一 邏輯運算器爲一或閘（OR Gate)運算器。 64. 如申請專利範圍第61項之驅動電路，其中上述之第一 邏輯運算器爲一及閘（AND Gate)運算器。 65. 如申請專利範圍第61項之驅動電路，其中上述之第一 邏輯運算器爲一反及閘（NAND Gate)運算器。 60.如申請專利範圍第61項之驅動電路，其中上述脈波寬 度調變電路包含下列元件： 一鋸齒波產生電路，包含該控制端、該接地端、該供應 電壓端以及一鋸齒波輸出端；以及 一第三比較器，包含二第三比較器輸入端及一第三比較 器輸出端，其中該二第三比較器輸入端分别耦合至該參考端 與該錄齒波輸出端，而該第三比較器輸出端即爲該脈波調變 輸出端》 67‘如申請專利範圍第66項之驅動電路，其中上述鋸齒波 產生電路包含下列元件： 一電容器，包含該鋸齒波輸出端及該接地端； —電阻器，一端耦合至該鋸齒波輸出端，另一端爲該供 應電壓端；以及 —電子開關，耦合於該電容器的該銀齒波輸出端及該接 33 本紙張尺度適用中固國家標準（CNS)A4規格（210 X 297公爱） H· PH i I— tfc n· ill· I 4 I— 1^1 ^^1 fit 訂--------.24- (請先閲讀背面之>£意事項再填寫本頁) 45 609 3 Α8 Β8 C8 D8 六、申請專利範圍 地端之間，並具有該控制端。 68.如申請專利範圍第67項之驅動電路，其中上述之電子 開關爲一電晶體。 个 69‘如申請專利範圍第67項之驅動電路，其中上述之電子 開關爲一場效電晶體。 70. 如申請專利範圍第69項之驅動電路，其中上述場效電 晶體的閘極爲該電子開關的該控制端，該場效電晶體的 源極與ί及極耦合於該電容器的該鋸齒波輸出端及該接地 端之間β 71. 如申請專利範圍第61項之驅動電路，其中上述之第二 邏輯運算器爲一反或閘運算器。 72. 如申請專利範圓第71項之驅動電路，其中更包含一反 相器，該反相器包含一反相器輸入端及一反栢器輸出 端，其中該反相器輸入端耦合至該或閘輸出端。 ί , J n ί ^ . —1 - J ί - -1 I I r^^閱tl背¾<注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製456093 Printed by A8, B8, C8, D8, Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economics. Patent application scope: 1 · A method of driving a brushless DC motor. The tangential component of the magnetic force generated by the magnetic pole 'drives the motor rotor to rotate in a predetermined direction. When the magnetic pole of the motor rotor rotates to a critical position relative to the stator magnetic field, the original polarity distribution of the magnetic field of the stator A tangential component force opposite to the rotor rotation direction will be generated on the rotor magnetic pole. At this time, the polarity of the induced magnetic field of the stator coil will alternate, driving the rotor to rotate in the original direction. The method includes: sensing the Distribution of the magnetic poles of the motor rotor; generating a drive control signal, the drive control signal is in a -disabled instruction state within a specified period of time before and after the rotor reaches the critical position; the drive control signal controls #the stator magnetic field Generation and alternation, when the drive control signal is in the forbidden instruction state, the Sub-field; driving the rotor and the stator field operated magnetically generated. 2. The method according to item 1 of the scope of patent application, wherein the above-mentioned sensing of the magnetic pole distribution of the motor rotor is performed by a Hall sensor. 3. For the method of applying for the first item in the scope of patent application, in which the Chinese paper standard (CNS) A4 specification (210 x 297 public love) is applied in the above-mentioned sensing of the paper size of the paper (please read the back of the first; fill in the meaning of the matter before filling in (This page) I installed ---- Ordered ---------- Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs r 6 Ο 9 3 A8 B8 C8 D8 6. The scope of patent application reaches the rotor pole distribution In the step, a first sensing signal and a second sensing signal which are changed according to the magnetic pole distribution of the motor rotor are generated. The first sensing signal is changed by a first sensing position before and after the motor rotor reaches the critical position. The standard gradually changes to a second sensing level, and the second sensing signal gradually changes from the second sensing level to the first sensing level. 4. The method according to item 3 of the patent application, wherein the step of generating the driving control signal further includes the following steps: generating a first reference signal to determine an inactivation interval, the inactivation interval including the critical position; Generating a first non-overlapping signal corresponding to the first sensing signal, and when the level of the first sensing signal is greater than the first reference signal level, the first non-overlapping signal is at a first control level, When the level of the first sensing signal is lower than the level of the first reference signal, the first non-overlapping signal is at a second control level; a second non-overlapping signal corresponding to the second sensing signal is generated. When the level of the second sensing signal is greater than the level of the first reference signal, the second non-overlapping signal is at the first control level, and when the level of the second sensing signal is less than the first reference When the signal level is on, the second non-overlapping signal is at the second control level; and the first non-overlapping signal and the second non-overlapping signal are used as the driving control signal. 5. If you apply for the method in item 4 of the patent scope, in which the above-mentioned first non-replicated paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 * 297 S) (Please read the intention on the back before filling in this Page) | ------, ---------- (^ 45 609 3 A8 B8 C8 D8 f, the patent application scope overlapping signal and the second non-overlapping signal mentioned above, in the disabled section It is at the same level, so that the motor stator does not generate an induced magnetic field in the forbidden interval. 6. For the method of the fourth item of the patent application, wherein the above-mentioned stator magnetic field is generated and controlled by a control signal, in The first non-overlapping signal and the second non-overlapping signal are in the disabled interval at the same level, the control signal outputs a disabled instruction level, and the motor stator does not generate an induced magnetic field at the disabled instruction level. 7. For the method of claim 6 in the scope of patent application, wherein the above-mentioned generation and control of the stator magnetic field is performed by a pulse width modulation signal, the pulse width modulation signal combines the first non-overlapping signal and the second Non-overlapping signals are not in the same level 7 Divided into a first speed control interval and a second speed control interval, and output the disabling indication level in the disabled interval and the first speed control interval, and output a consistent energy indication level in the second speed control interval Standard, wherein the motor stator generates an induced magnetic field at the enabling indication level. 8. If the method of the scope of patent application item 7, wherein the length ratio of the second speed control interval and the first speed control interval, Differentiate according to the specified rotation speed. The higher the rotation speed is specified, the larger the length ratio of the second speed control interval is. Β This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) It i I n n- nn-III-i tt In] n I-3J III n I— i [I (Please read the first 4 notes on the back before filling out this page) Printed by the Economic Village Intellectual Property Bureau Staff Consumer Cooperatives 45 609 3 B8 _____a 、 Applicable patent scope 9 · If the method of patent application scope item 7 is used, its production and control shall be doubled by a speed control modulation signal = stator base field number in the disabled area and the second speed control area. 3 揸 Modulation message: ^ 1 'Output this disable -When the level is within the quick control interval, output the enable indication level \ No 10. If the method of the scope of the patent application is No. 4, six T &M; < foot spot generation and control, with a drive circuit Into the world, the circuit of the driver's drive must include at least 3 * —first—comparators, including two first comparator round-in ends and —first— .. output terminals, where the second-comparator input ends Coupled to the H measurement signal and the first reference signal; the human_sensing-second comparator 'includes two second comparator input terminals and a first comparator output terminal, where the two second comparator input terminals are respectively coupled to The second OR measurement signal and the first reference signal; and a logic operator for a period in which the output signal of the first comparator and the output signal of the second comparator are in the same logic state, and are not in the same period The logic period is distinguished. As a basis for motor drive, the logic operator includes two logic inputs and a logic output, where the two logic inputs are respectively coupled to the first comparator output and the second comparison.器 轮 端。 The wheel end. 11. The method of claim 10 in the scope of patent application, wherein the above-mentioned logical operator is an inverse OR gate (NOR Gate) operator. This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 gong) (Please read the precautions on the back before filling this page) Pack: ABCD 456093 printed by Shelley Consumer Cooperative of the Bureau of Economics and Intellectual Property 2. The scope of patent application 12. If the method of the scope of patent application is the 10th item, wherein the above-mentioned logical operation device is an OR gate arithmetic unit < = 1 3. The method of the scope of the patent application item 10, wherein the above The logic operator is an AND Gate operator. 14. The method in item 10 of the patent application, wherein the above-mentioned logic operation device is an inverse AND gate operation (NAND Gate) operation device. 15. The method according to item 10 of the patent application, wherein the driving circuit further includes a pulse width modulation circuit, and the pulse width modulation circuit includes a control terminal, a reference terminal, and a pulse modulation. An output terminal, a ground terminal, and a supply voltage terminal, wherein the control terminal is coupled to the reverse OR gate output terminal, the ground terminal is grounded, and the supply voltage terminal is coupled to a supply voltage. 16. The method of claim 15 in which the above-mentioned pulse width modulation circuit includes the following components: a sawtooth wave generating circuit including the control terminal, the ground terminal, the supply voltage terminal, and a sawtooth wave output terminal And a third comparator, including two third comparator input terminals and one third comparator output terminal, wherein the two third comparator input terminals are respectively coupled to the reference terminal and the sawtooth wave output terminal, and the first The output of the three comparators is the pulse modulation output. 20 This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) ----- 1 ------- --------- Order '------- _ 丨 ^ (锖 Please read the notes on the back before filling this page) Member of the Intellectual Property Bureau of the Ministry of Economic Affairs ΗPrinted by Consumer Cooperatives 456093 A8 B8 C8 D8 VI. Application for Patent Scope 17. For the method of applying for the scope of patent application No. 16, where The above sawtooth wave generating circuit includes the following components: "_ capacitor, including the sawtooth wave output terminal and the ground terminal; a resistor, one end of which is connected to the chain tooth wave output terminal, and the other end is the supply voltage terminal; and an electronic A switch coupled between the sawtooth wave output terminal of the capacitor and the ground terminal, and having the control terminal. 1 8. The method according to item 17 of the scope of patent application, wherein the electronic switch is a transistor. 9 The method according to item 17 of the patent application, wherein the above electronic switch is a field effect transistor. 20. The method according to item 19 of the patent application, wherein the gate of the field effect transistor is the control terminal of the electronic switch. , The source and sink of the field effect transistor Coupled between the sawtooth wave output terminal and the ground terminal of the capacitor. --- -II —ί Γ— I — n HI j--ί I 4fc n ff a.1 * I ^ 1- _ [[ Hr I-(Please read the notes on the back before filling out this page) Member of the Intellectual Property Bureau of the Ministry of Economic Affairs x Consumer Cooperative Co-operative Printer Fanluoli Second Special Section No. 1 Application Inclusive The description of the t-machine operation calculation is based on the number in the previous method, which is based on the fact that the driving power of the moving road is changed to change the horse's tuning to a wide range. The second is the calculation of the scheduled delivery and the end-input logic of the second and the Yuhan period. The second is the second special edition, and the second is the second. The second paper size applies the Chinese national standard. (CNS) A4 specification (2KM 297 mm) 456093 A8 B8 C8 D8 t. In the patent application scope, the two second logic input terminals are respectively coupled to the pulse wave modulation output terminal and the first logic output terminal. 22. Such as The method of applying for the scope of patent application No. 21, wherein the above-mentioned second logic operation unit is an inverse OR gate operation 23. The method according to item 22 of the patent application, wherein the driving circuit further includes an inverter, the inverter includes an inverter input terminal and an inverter output terminal, wherein the inverter The input terminal is coupled to the OR gate output terminal. 24. For example, the method of the first patent application range, wherein the aforementioned forbidden interval is determined by comparing a reference signal to the sensing signal of the magnetic pole of the motor rotor. 25. The method according to item 1 of the scope of patent application, wherein the generation of the above-mentioned drive control signal is performed in conjunction with a Pulse Width Modulation (PWM) method to generate the drive control signal with a speed control function. . 2 6. A method for driving a brushless DC motor. The method uses a tangential component of a magnetic field generated by a magnetic pole of a motor rotor to a magnetic pole of a motor rotor to drive the motor rotor to rotate in a predetermined direction. When the magnetic pole of the motor rotor rotates to a critical position relative to the magnetic field of the stator 22 ------------ 1 --------- order -------- (Please read the notice on the back before filling in this page) The paper size printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs applies the Chinese National Standard (CNS) A4 specification (210 297 mm) 456093 £ 8008 ^ BaD The original polarity distribution of the stator magnetic field will generate a tangential component force opposite to the direction of rotation of the rotor. At this time, the polarity of the induced magnetic field on the magnetic pole will change. Figure ^ ^, the rotor continues to rotate in a sequential direction, the method includes: if the cloth cutter generates a first 1 ifi number and a second sensor signal that are happy according to the magnetic pole distribution of the motor rotor, and when the motor rotor reaches the ^ ^ Before and after the critical position of the A sensing signal is gradually changed from a first sensing level to a second sensing level, and the second sensing signal is gradually changed from the second sensing level 1 + to the first sensing level. Generate-the first reference signal to determine-the disabled interval, the disabled interval contains the critical position; generate a first-non-repeated signal corresponding to the first sensing signal, when the first sensing When the signal level is greater than the first reference signal level, the first non-overlapping signal is at a first control level, and when the level of the first sensing signal is less than the first reference signal level, the first The non-overlapping signal is at a second control level; a second non-overlapping signal corresponding to the first sensing signal is generated. When the level of the second sensing signal is greater than the first reference signal level, the A second non-overlapping signal is at the first control level, and when the level of the second sensing signal is lower than the first reference signal level, the second non-overlapping signal is at the second control level; and The first non-overlapping signal and the second non-repeated signal The stator field generated braking. 23 This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210 X 297 meals) < 谙 Please read the precautions on the back before filling this page > a ^^ ---- ----- Order- --- n I Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs and printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ¾ 6 0 9 3 ab B8 C8 D8 t. Application for patent scope 2 7. If the method of applying for the scope of patent No. 26 Among them, the above-mentioned first non-overlapping signal and the above-mentioned second non-overlapping signal are at the same level in the forbidden interval, so that the Ma Yuan stator does not generate an induced magnetic field in the forbidden interval. 28. Such as the scope of patent application The method of item 26, wherein the above-mentioned generation and control of the stator magnetic field is performed by a control signal, and the control signal is within the disabled section where the first non-overlapping signal and the second non-overlapping signal are at the same level. Output disable level, the motor stator does not generate an induced magnetic field under this disable level = 29. For the method in the scope of patent application No. 28, where the above-mentioned stator magnetic field is generated and controlled by a pulse width Modulation signal On, the pulse width modulation signal divides the first non-overlapping signal and the second non-overlapping signal into sections that are not at the same level, and divides them into a first speed control section and a second speed control section, and The disable instruction level and the first speed control interval output the disable instruction level, and the second speed control interval outputs a consistent enable instruction level, wherein the motor stator generates an induced magnetic field at the enable instruction level. 30. The method according to item 29 of the scope of patent application, wherein the second speed control section and the first speed control section are distinguished according to the ratio of the specified speed to the maximum speed of the motor. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------ -------- Order .-------- End (Please read the notes on the back before filling out this page) 4 5 6 0 9 3 A8 B8 C8 D8 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs to apply for a patent scope 3 1 · If the method for applying for the scope of patent scope item 29, of which The production and control of Shangcheng's small-scale market in the industrial department is performed by a speed control modulation signal, and the speed control modulation signal is used to output the disabled energy output in the disabled area and the second speed controlled area. Level, and 'in the first speed control interval, output the energy-indicating level τ 3 2 · As in the method of patent application No. 26, wherein the above-mentioned sensing of the two magnetic poles of the motor rotor and the first sensing The measurement signal and the nuclear m — ”are used to link the generation of a distress signal with a Hall sensor. 3 3. If the method of the scope of patent application No. 26, the generation and control of the back to the radon market, to A driving circuit is performed, and the driving circuit includes: y includes a first comparator, including two first comparator inputs. And a younger one comparator output terminal, where the two first comparator input terminals are respectively turned to the first — measurement signal and the first reference signal; $ one second comparator 'includes two second comparator input terminals and A second comparator output terminal 'its_the · a first comparator input terminal is lightly connected to the second measurement signal and the first reference signal; and'-a logic operator for comparing the first comparison The time period when the output signal of the comparator is in the same logic state as the output signal of the second comparator is distinguished from the time period that is not in the same delayed state. As a basis for motor driving, the logic calculator includes two logic inputs and a logic The output end, in which the second round input end is coupled to the first comparator output end and the second comparator output end respectively. 25 This paper size is in accordance with the Chinese National Standard (CNS) A4 specification (210 X 297 mm) --------------Install -------- Order --------- Eat f Qi first read the V on the back side of the general matters 4 fill in this page) 45 609 3 AS B8 C8 D8 VI. Scope of patent application The above logic operator is an NOR Gate operator. 35. For example, the method of claim 33 in the scope of patent application, wherein the above logic operator is an OR Gate operator. 36. If applied The method of the item 33 of the patent, wherein the above-mentioned logical operator is an AND gate operator. 37. For the method of the item 33 of the application, the above-mentioned logical operator is an inverse AND gate (NAND Gate) arithmetic unit. 38. The method according to item 33 of the patent application, wherein the driving circuit further includes a pulse width modulation circuit, and the pulse width modulation circuit includes a control terminal, a reference terminal, and a pulse modulation. An output terminal, a ground terminal, and a supply voltage terminal, wherein the control terminal is coupled to the reverse OR gate output terminal, the ground terminal is grounded, and the supply voltage terminal is coupled to a supply voltage. 39. The method according to item 38 of the scope of patent application, wherein the aforementioned pulse width modulation circuit includes the following components: a sawtooth wave generating circuit including the control terminal, the ground terminal, the supply voltage terminal, and a sawtooth wave An output terminal; and a third comparator, including two third comparator input terminals and a third comparison 26 This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) I — — — — — — —— — — — I --- I 1 1 I i 111111! 1 C Please read the notes on the back before filling out this page) Seal of Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-45 609 3 Α8 Β8 CS D8 VI. The patent application fan output terminal, wherein the two and third comparator input terminals are respectively coupled to the reference terminal and the medium tooth wave output terminal, and the third comparator output signal is the pulse wave modulation < Read the notes on the back and fill in this page) Output terminal α 40. If you apply for the method of item 39 of the special brake range, the above-mentioned sawtooth wave generating circuit includes the following components: A capacitor, which includes the sawtooth wave output terminal and the ground terminal ;- A resistor, one end of which is lightly connected to the tooth wave output terminal, and the other end is the supply voltage terminal; and an electronic switch is engaged between the sawtooth wave output terminal and the ground terminal of the capacitor. . 41. The method of claim 40, wherein the electronic switch is a transistor. 4 2. If the method of applying for the scope of patent No. 40, wherein the above electronic switch is a field effect crystal, printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 43. If the method of applying for scope of the patent No. 42, where the above-mentioned field effect The gate of the transistor is the control terminal of the electronic switch, and the source and drain of the field effect transistor are coupled between the sawtooth wave output terminal of the capacitor and the ground terminal. 44_ If the method of applying for the scope of patent No. 38, in which the above-mentioned drive circuit 27, this paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 Gongrong) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Consumer Cooperatives 456093 A3 B8 C8 D8 t. The scope of patent application further includes a second logic operation unit, which is used to select a specific time period from the output signal of the first logic operation unit and the output signal of the pulse width modulation circuit as a combination, as Motor-driven basis, the second logic operator includes two second logic input terminals and a second logic output terminal, wherein the two second logic input terminals are respectively coupled to the pulse wave modulation output terminal and the first logic output terminal. 45. If the method of the 44th item of the scope of patent application is applied, wherein the second logical operator is an inverse OR gate operator. 46. If the method of the 45th item of the patent application park, the above drive circuit further includes An inverter comprising an inverter input terminal and an inverter output terminal, wherein the inverter input terminal is coupled to the OR gate output terminal. 47. —Brushless straight A drive circuit for a flow motor. The drive circuit receives two induction signals transmitted by an inductor and outputs a motor drive signal. The drive circuit includes: a first comparator, including two first comparator inputs and a first comparison. A comparator output terminal, wherein the two first comparator input terminals are respectively coupled to a sensing signal and a reference signal; a second comparator includes two second comparator input terminals and a second comparator output terminal, wherein: The input terminals of the second and second comparators are respectively coupled to the reference signal and another sensing signal; and 28 paper sizes are applicable to China National Standard (CNS) A4 specifications (210 X 297 cm) --------- Install -----———— Order -------- A (Please read the precautions on the back before filling out this page) 456093 88009 ABCD VI. Patent Application Scope-A logic operator '" The period when the comparator's output signal is in the same logic state as the output signal of the second comparator is distinguished from the period when it is not in the same four states. As a basis for motor drive, the logic operator includes two logic inputs and —Logic output Terminal, wherein the two logic inputs are coupled to the first-comparator output and the second comparator output respectively. 48. For example, the driving circuit of Item 47 of the patent application park, wherein the above-mentioned logic arithmetic unit is an inverse OR gate (NOR Gate) operator. 49. For example, the driver circuit of item 47 of the patent scope is claimed, wherein the above-mentioned logical operator is an OR gate operator. 50. If the patent scope of item 47 is applied, Driving circuit, where the above-mentioned logical operator is an AND gate operator. 51. For example, the driving circuit of claim 47 of the patent scope, wherein the above-mentioned logical operator is an NAND gate operation Device. I ------, install ----- I --- order r -------- '^ f Qi first read the precautions on the back before filling in the page} Employees ’Intellectual Property Bureau, Ministry of Economic Affairs Cooperative Society S. 52. For example, the driving circuit of the 47th scope of the patent application, which further includes a pulse width modulation circuit, the pulse width modulation circuit includes a control terminal, a reference terminal, and a pulse modulation. An output terminal, a ground terminal, and a supply voltage terminal, wherein the control pad is lightly connected to the reverse OR gate output terminal, the ground terminal is grounded, and the supply voltage terminal is coupled to a supply voltage. 29 This paper size applies to China National Standard (CNS) A4 (210 X 297 g) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 456093 AS B8 C8 D8 ^ Application for patent scope 5 3 A driving circuit, wherein the pulse width modulation circuit includes the following components: a sawtooth wave generating circuit including the control terminal, the ground terminal, the supply voltage terminal, and a sawtooth wave output terminal; and a second comparator, It includes two second comparator input terminals and a second comparator output terminal, wherein the two second comparator input terminals are respectively coupled to the reference terminal and the sawtooth wave output terminal, and the second comparator output terminal is the Pulse wave modulation output. 54. The driving circuit according to item 53 of the application, wherein the sawtooth wave generating circuit includes the following components: a capacitor including the sawtooth wave output terminal and the ground terminal; a resistor having one end coupled to the sawtooth wave output terminal, The other terminal is the supply voltage terminal; and an electronic switch is coupled between the sawtooth wave output terminal and the ground terminal of the capacitor, and has the control terminal. 55. The driving circuit according to item 54 of the application, wherein the electronic switch is a transistor. 56. For example, the driving circuit of claim 54 of the patent scope, wherein the above electronic switch is a field effect transistor. 30 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------ -i ------ ^ --- Order ----- --- i < Please read the notes on the back before filling out this page) 456093 888 9? ABCD Employee Consumption Cooperative Association of Intellectual Property Bureau of the Ministry of Economic Affairs * '1 ^ t, patent application scope 5 7. If the patent application scope is 56th The driving circuit of the item, wherein the gate of the field effect transistor is the control terminal of the electronic switch, and the source and drain of the field effect transistor are coupled between the sawtooth wave output terminal of the capacitor and the ground terminal. 58. For example, the driving circuit of claim 52 of the patent application scope further includes a second logic operation unit for selecting the output signal of the first logic operation unit and the output signal of the pulse width modulation circuit. The specific time periods are combined as a basis for motor driving. The second logic operator includes two second logic input terminals and a second logic output terminal, wherein the two second logic input terminals are respectively coupled to the pulse wave modulation output. And a first logic output. 59. If the driving circuit according to item 58 of the patent application scope, wherein the second logic operator is an inverse OR gate operator. 60. For example, the driving circuit of the 59th patent application scope further includes an inverter. The inverter includes an inverter input terminal and an inverter output terminal. The input terminal of the inverter is coupled to the inverter. OR gate output. 61. —A drive circuit for a brushless DC motor. The drive circuit receives two induction signals transmitted by an inductor and outputs a motor drive signal. The drive circuit includes: a first comparator including two first comparator inputs. The first and the first comparison 31 This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 public love) -------------^ ------ ^ --- Order · -------- '^' {Please read the precautions on the back before filling in this page> 456093 A8B8C8D8 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Two first comparator input terminals are respectively coupled to a sensing signal and a reference signal; a second comparator 'includes two second comparator input terminals and a second comparator output terminal, wherein the two second comparator inputs The terminal is respectively coupled to the reference signal and another measurement signal;-a first logic operation unit for a period in which the output signal of the first comparator and the output signal of the second comparator are in the same logic state; Distinguish between periods of the same logical state, As the basis for motor driving, the first logic operator includes two first logic input terminals and a first logic output terminal, wherein the two first logic input terminals are respectively coupled to the first comparator output terminal and the second logic output terminal. Comparator output terminal; a pulse width modulation circuit, the pulse width modulation circuit includes a control terminal, a reference terminal, a gland modulation output terminal, a ground terminal, and a supply voltage terminal The control terminal is coupled to the OR gate output terminal, the ground terminal is grounded, the supply voltage terminal is coupled to a supply voltage, and a second logic operator is used to output the pulse signal and the pulse signal from the first logic operator. Among the output signals of the width modulation circuit, a specific period is selected and combined as a basis for driving the motor. The second logic operation unit includes two second logic input terminals and a second encounter output terminal. The logic input terminal is respectively coupled to the pulse wave modulation output terminal and the first logic output terminal. 62. The driving circuit according to item 61 of the patent application scope, wherein the first logic operator is an inverse OR gate (NOR Gate) operator. 32 This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 meals) -Packing ------------ Order --------- 4 (Please read the precautions on the back before (Fill in this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 456093 A8 B8 C8 D8 VI. Application for patent scope 63_ If the patent circuit of the patent application No. 61 driving circuit, the first logic operation unit is an OR gate (OR Gate) arithmetic unit. 64. For example, the driving circuit of the 61st patent application range, wherein the first logic operator is an AND Gate operator. 65. For example, the driving circuit of the 61st patent application range, wherein the above-mentioned first logic operation unit is an inverse AND gate operation (NAND Gate) operation unit. 60. The driving circuit according to item 61 of the patent application range, wherein the pulse width modulation circuit includes the following components: a sawtooth wave generating circuit including the control terminal, the ground terminal, the supply voltage terminal, and a sawtooth wave output A third comparator, including two third comparator input terminals and one third comparator output terminal, wherein the two third comparator input terminals are respectively coupled to the reference terminal and the recording tooth wave output terminal, and The third comparator output terminal is the pulse wave modulation output terminal. 67 'The driving circuit according to item 66 of the patent application range, wherein the above sawtooth wave generating circuit includes the following components: a capacitor including the sawtooth wave output terminal and The ground terminal;-a resistor, one end of which is coupled to the sawtooth wave output terminal, and the other end of which is the supply voltage terminal; and-an electronic switch, which is coupled to the silver tooth wave output terminal of the capacitor and the connection Solid National Standard (CNS) A4 Specification (210 X 297 Public Love) H · PH i I— tfc n · ill · I 4 I— 1 ^ 1 ^^ 1 fit Order --------. 24- ( Please read the > Note on the back first (Fill in this page again) 45 609 3 Α8 Β8 C8 D8 6. Scope of patent application Between the ground terminal and the control terminal. 68. The driving circuit according to item 67 of the application, wherein the electronic switch is a transistor. A 69 'driving circuit according to item 67 of the patent application range, wherein the above electronic switch is a field effect transistor. 70. For example, the driving circuit of the scope of application for patent 69, wherein the gate of the field-effect transistor is the control end of the electronic switch, and the source and the pole of the field-effect transistor are coupled to the sawtooth wave of the capacitor. Β 71 between the output terminal and the ground terminal 71. The driving circuit according to item 61 of the patent application range, wherein the second logic operator is an inverse OR gate operator. 72. For example, the driving circuit of the patented Fan Yuan No. 71, further comprising an inverter, the inverter including an inverter input terminal and an inverter output terminal, wherein the inverter input terminal is coupled to The OR gate output. ί, J n ί ^. —1-J ί--1 I I r ^^ Read tlback ¾ < Notes before filling out this page) Printed by the Consumer Cooperative of Intellectual Property Bureau, Ministry of Economic Affairs 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公爱）This paper size applies to China National Standard (CNS) A4 (210 x 297 public love)
TW88114130A 1999-08-18 1999-08-18 Driving method of brushless DC motor TW456093B (en)

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