TW502489B - Starting apparatus and method - Google Patents
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- TW502489B TW502489B TW90100078A TW90100078A TW502489B TW 502489 B TW502489 B TW 502489B TW 90100078 A TW90100078 A TW 90100078A TW 90100078 A TW90100078 A TW 90100078A TW 502489 B TW502489 B TW 502489B
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五、發明說明(1) 發明領域 本案係有關於一種啟動 電路(如直流馬達)之啟動 路啟動時所產生之突波電流 發明背景 一叙之馬達在結構上且 點,因此馬達於啟動時都會 此乃由於電路配線之安排不 致。而過去在設計上因為無 流,所以此電流常常造成馬 在目前解決此問題的方 之處追加電容器或變阻器等 雜的電路以多段或分段啟動 流’例如使用多個濾波器以 modulation,PWM)訊號,再 的波覓比(d u t y c y c 1 e)變化 化’因而使馬達之平均電流 波之波寬比來控制馬達的轉 方式’除了花費成本高和設 成極大的電氣聲,且在多次 件的可靠度。 職是之故,本創作鑑於 驗與研究並一本錢而不捨之 置及方法』。以下為本案之 ^ i及方法,尤指應用於電感 , 及方法,其可降低電感電 f電刷及整流子等機械的接 各、千间產生極大的突波電流, 及電源本身性能欠佳所 、是衝的電路以防止此突波電 達内部或使用系統的損壞。 式中’有些係在供給馬達電源 保護電路,或是透過昂貴且複 方式來啟動,以減低此突波電 產生脈波寬調變(pulse width 輸出至電晶體,藉由PWM訊號 ,使電晶體的開關間隔隨之變 發生變化,因此可藉由改變脈 速。然而,此多段或分段啟動 計複雜之外,在啟動時仍會造 衝擊下,亦會影響内部電子零 習知技術之缺失’乃經悉心试 精神,終創作出本案『啟動裝 簡要說明。V. Description of the invention (1) Field of the invention The present invention relates to a surge current generated when a starting circuit of a starting circuit (such as a DC motor) is started. BACKGROUND OF THE INVENTION This is due to the arrangement of the circuit wiring. In the past, because there was no current in the design, this current often caused horses to add capacitors or varistors and other miscellaneous circuits to start the current in multiple stages or segments. For example, using multiple filters to modulate, PWM ) Signal, and then change the duty ratio (dutycyc 1 e) 'so that the average current wave width ratio of the motor to control the motor's rotation mode' in addition to high cost and set a great electrical sound, and repeatedly Reliability. This is the reason why this work is based on the experience and research and the cost and persistence of methods and methods. " The following are the methods and methods of this case, especially applied to inductors, and methods, which can reduce the inductance of f brushes and commutators and other machinery, generate a large surge current between thousands, and the performance of the power supply itself is not good. Therefore, it is an impulsive circuit to prevent damage to the surge or internal system. Some of them are used to supply the motor power protection circuit, or to start by expensive and complex methods to reduce the surge current and generate pulse width modulation (pulse width is output to the transistor. The PWM signal is used to make the transistor The switching interval changes accordingly, so you can change the pulse rate. However, in addition to the complexity of this multi-stage or segmented start-up meter, it will still have an impact at startup and affect the lack of internal electronic zero-knowledge technology. 'Being careful in trying the spirit, he finally created a brief description of this case.
川2489 五^發明說明(2) 發明綜合說明 本案之主要目的在於提供一種啟動裝置, 感電路啟動時所產生之突波電流。 本案之另一目的在於提供一種簡單、成本 内部電子零件可靠度之啟動裝置,用於消除電 時所產生之突波電流。 該啟動裝置包括一訊號產生器,電連接於 路,其因應该電感電路所輸出的訊號而產生一 一比較電路,電連接於該訊號產生器,其係用 訊號轉換成一第二訊號,並且比較該第二訊號 號以產生一控制訊號;以及一控制元件,電連 電路與該電感電路,其用於接收該控制訊號, 制訊號而逐漸增加輸入至該電感電路的電流, 黾感電路啟動時所產生之突波電流。 其中,該電感電路為一般的馬達或是直流 根據本案之構想,該訊號產生器為一頻率產生 (frequency generator)。而該第一訊號為一玉 或疋一方波訊號,該方波訊號之頻率與馬 n ^ > u此外,該比較電路更包括一訊號轉換$ 訊號產生器,其係用於將該第一訊說轉換1 ^及比較為,電連接於該訊號轉換器,、j 第二訊號與該參考訊號後輸出一控制;’ 轉換器較佳為一三角波產生電路,用:: 用於降低電 低且不影響 感電路啟動 該電感電 第一訊號; 於將該第一 與一參考訊 接於該比較 並因應該控 因而降低該 馬達。 器 ^期性訊號 轉速成正 笔連接於該 第二訊號; 用於比較該 中’該訊號 波訊號轉換 502489Chuan 2489 5 ^ Description of the invention (2) Comprehensive description of the invention The main purpose of this case is to provide a starting device that senses the surge current generated when the circuit starts. Another purpose of this case is to provide a simple and cost-effective starting device for internal electronic parts, which is used to eliminate the surge current generated when electricity is generated. The starting device includes a signal generator electrically connected to the circuit, which generates a one-to-one comparison circuit in response to a signal output from the inductive circuit, and is electrically connected to the signal generator, which is converted into a second signal by a signal and compared The second signal generates a control signal; and a control element, an electrical connection circuit and the inductance circuit, which are used to receive the control signal and generate a signal to gradually increase the current input to the inductance circuit. When the sense circuit is activated, The resulting surge current. The inductive circuit is a general motor or a direct current. According to the idea of the present case, the signal generator is a frequency generator. And the first signal is a jade or 疋 side wave signal, and the frequency of the square wave signal is equal to ^ > u In addition, the comparison circuit further includes a signal conversion $ signal generator, which is used to convert the first signal The signal conversion 1 ^ and comparison is that it is electrically connected to the signal converter, and the second signal and the reference signal output a control; the converter is preferably a triangle wave generating circuit, which is used to: It does not affect the inductive circuit to activate the first signal of the inductor; therefore, the first and a reference signal are connected to the comparison and the motor is lowered due to control. The signal is a periodical signal and the speed is positive. The pen is connected to the second signal; it is used to compare the signal signal with the signal signal. 502489
成f角波或鋸齒波訊號。接著,該比較器將三角波或鋸齒 波訊號與充電電路所提供之參考訊號做一比較後而輪出誃 控制訊號,其為一脈波寬調變(pulse width " modulation,PWM)訊號。 另外,本案之啟動裝置更包括一驅動電路,電連接於 該電感電路與訊號產生器之間,用於驅動該電感電路。、F-angle or sawtooth signal. Then, the comparator compares the triangular wave or sawtooth wave signal with the reference signal provided by the charging circuit and then outputs the control signal, which is a pulse width " modulation (PWM) signal. In addition, the starting device of the present case further includes a driving circuit electrically connected between the inductive circuit and the signal generator for driving the inductive circuit. ,
,彳f ί案之構想,該控制元件較佳為一電子開關,更佳為 a私日日版,用於因應該控制訊號而使流經該電感電路的電 "IL逐漸2加’以削減電感電路啟動時所產生之突波電流。 士 本木之另 目的在於提供一種用於降低電感電路啟動 時:f生之突波電流的啟動方法。該方法之步驟包括因應 瀛迅忍電路所輪出的訊號而產生一第一訊號·,藉由一訊號 轉:器將該第_訊號轉換成一第二訊號;&較該第二訊號 與4 ^考汛旒以產生一控制訊號;以及因應該控制訊號而 逐j I加輸入至該電感電路的電流,因而降低該電感電路 啟動時生之突波電流。 本木彳于藉由下列圖式及詳細說明,俾得一更深入之了 解0 較佳貫施例說明 脖t木提供了 一種應用於電感電路(如直流馬達)之啟 動衣θ 其可降低馬達啟動時所產生之突波電流。請參閱 第一圖,並— 勺 〔、4不本案之啟動裝置的較佳實施例,該啟動裝 置t f Λ 5虎產生器1 2 ’電連接於馬達11 ’其因應該馬達 的轉速而產峰__^ t _ 生一方波矾號;一比較電路,電連接於該訊號The idea of the case is that the control element is preferably an electronic switch, more preferably a private Japanese version, which is used to make the electricity flowing through the inductor circuit in response to the control signal < IL gradually 2 plus' to Reduce the surge current generated when the inductor circuit starts. Another objective of Shimotogi is to provide a starting method for reducing the inrush current of an inductive circuit when it starts. The steps of the method include generating a first signal in response to the signal from the ninja circuit, by a signal converter: the _ signal is converted into a second signal; & compared with the second signal and 4 ^ Test flood to generate a control signal; and to increase the current input to the inductor circuit one by one in response to the control signal, thereby reducing the surge current generated when the inductor circuit starts. The following figures and detailed explanations have been used to obtain a deeper understanding of this wood. 0 Preferred embodiments are described. The neck wood provides a starting suit for an inductive circuit (such as a DC motor). It can reduce the motor. Surge current generated during startup. Please refer to the first figure, and-a preferred embodiment of the starting device of the present invention. The starting device tf Λ 5 tiger generator 1 2 'is electrically connected to the motor 11', which produces peaks in response to the speed of the motor. __ ^ t _ Generate a wave signal; a comparison circuit, electrically connected to the signal
第6頁 502489Page 6 502489
該訊號產生器丨2較佳為一頻率產生器(f requency generator^,其根據馬達的轉速而產生一週期性方波訊 號,所以該方波訊號之頻率與馬達的轉速成正比關係。The signal generator 2 is preferably a frequency generator (frequency generator ^), which generates a periodic square wave signal according to the rotation speed of the motor, so the frequency of the square wave signal is proportional to the rotation speed of the motor.
該比較電路更包括一訊號轉換器13和一比較器14,該訊號 ,換截1 3較佳為一三角波產生電路,電連接於該訊號產生 JI1 2 ]其係用於將該方波訊號轉換成三角波或鋸齒波訊 號’以便與該參考訊號1^ (或稱為目標值基準電壓)相 比杈1^ ΐ生該控制訊號,其中該參考訊號係由與電壓源Vcc 和比較器1 4電連接之充電電路或電阻電容電路1 5所提供。 而該比較器1 4電連接於該訊號轉換器丨3,其係用於比較該 二角波或鑛齒波訊號與該參考訊號後輸出一控制訊號。該 控制訊號為一脈波寬調變(pulse width modulation,The comparison circuit further includes a signal converter 13 and a comparator 14. The signal, the interception 1 3 is preferably a triangle wave generating circuit, which is electrically connected to the signal generating JI1 2], which is used to convert the square wave signal. Into a triangular wave or sawtooth wave signal, so as to generate the control signal compared with the reference signal 1 ^ (or referred to as the target value reference voltage), where the reference signal is electrically connected to the voltage source Vcc and the comparator 14 Connected charging circuit or resistance capacitor circuit 15 is provided. The comparator 14 is electrically connected to the signal converter 3, and it is used to compare the two-corner wave or the tooth wave signal with the reference signal and output a control signal. The control signal is a pulse width modulation (pulse width modulation,
PWM)訊號。 該控制元件1 6較佳為一電子開關,更佳為電晶體,其 f收该脈波寬調變訊號後,並因應該訊號而使流經該電感 電路的電流逐漸增加,因而降低該馬達啟動時所產生之突 波電流,進而控制馬達的轉速。 為能充分瞭解整個裝置中訊號之轉換和變化情形以及PWM) signal. The control element 16 is preferably an electronic switch, more preferably a transistor. After receiving the pulse width modulation signal, the control element 16 gradually increases the current flowing through the inductance circuit in response to the signal, thereby reducing the motor. The surge current generated during start-up controls the speed of the motor. To fully understand the transitions and changes in the signal across the device, and
第7頁 502489 Λ:Page 7 502489 Λ:
j 號 9010f)f)7R 五、發明說明(5) imi I"'",一“丨丨__丨nUI__IINI 他^丨^ 其與馬達轉速之間的關係,請參閱第二圖。頰率 ·、 訊號產生器12所產生的FG訊號為一方波訊號(如產生器一或 ),其頻率與馬達轉速成正比,經過該訊號轉換^ 成三角波或鋸齒波,如(b)所示,方能輪入5 " 、 與充電電路所提供之參考電壓Vref相比較,裉摅a f τ a 似爆比較之姓 果,比較器輸出PWM訊號至電晶體,如⑷所示,當脈波° 入時,馬達開始逐步旋轉,當輸入脈波消失時(脈 令 » 電位變成低電位),電晶體變成關閉狀態,但馬』^ $二 慣性而持續旋轉一段時間,因此藉由電晶體的開關,& 制供給馬達之電流,使馬達轉速逐漸增加,直到焉達以二 速運轉為止(如第二圖之(d)所示)^因此藉由此”簡單的王 電路ft可降低該馬達啟動時所產生之突波電流。 此外,如第三圖所示,本案之啟動裝置亦$包括一驅 動電.路17,電連接於該馬達與該訊號產生器之間,用於驅 動該馬達。 综合上面所述,本案之啟動裝置或方法透過一簡單且 成本低的電路設計,於馬達啟動時逐漸增加馬達的轉速, 其可以有效降低馬達啟動時所產生之突波電流,以防止馬 達内部或與其連接的電子電路因為突的產生而 損壞。 又 疋以,本案得由熟悉本技藝之人士任施匠思而為諸般 修飾H不脫如附中請專利範圍所欲保護者。j number 9010f) f) 7R 5. Description of the invention (5) imi I " '", a "丨 丨 __ 丨 nUI__IINI other ^ 丨 ^ For the relationship between it and the motor speed, please refer to the second figure. · The FG signal generated by the signal generator 12 is a one-wave signal (such as generator one or), and its frequency is proportional to the motor speed. After this signal is converted into a triangle wave or sawtooth wave, as shown in (b), It can be turned in 5 and compared with the reference voltage Vref provided by the charging circuit. 裉 摅 af τ a The comparison result is like a burst comparison. The comparator outputs a PWM signal to the transistor. As shown by ⑷, when the pulse wave enters At that time, the motor starts to rotate gradually. When the input pulse wave disappears (pulse »potential becomes low), the transistor turns off, but the horse's inertia continues to rotate for a period of time, so by the switch of the transistor, & Control the current supplied to the motor, so that the motor speed gradually increases until Tiida runs at two speeds (as shown in (d) of the second figure) ^ Therefore, the "simple king circuit ft" can reduce the motor startup time The resulting surge current. In addition, as shown in the third figure, the starting device of this case also includes a driving circuit. Circuit 17 is electrically connected between the motor and the signal generator for driving the motor. To sum up, the starting device or method of this case uses a simple and low-cost circuit design to gradually increase the speed of the motor when the motor is started. The electronic circuit connected to it is damaged due to the sudden generation. Also, this case may be modified by anyone who is familiar with the art, and it can be modified as long as it is protected by the attached patent scope.
$ 8頁 1酬 2002. 03. 25. 〇〇8 502489 案號 90100078 γ f..1 _-^ 旅π:! 年年^ ^ 'Jia1 修正' 圖式簡單說明 , mm ·— ***~..~ 簡單圖式說明 第一圖為本案之啟動裝置的一實施例。 第二圖顯示本案啟動裝置中訊號的轉換和變化情形以 及訊號與馬達轉速變化之間的關係。 第三圖為本案啟動裝置的另一實施例。 以上圖式之主要構件如下: 16 電晶體 13 訊號轉換器 15 充電電路 11 :馬達 12 :訊號產生器 14 :比較器 1 7 : 驅動電路$ 8 pages 1 remuneration 2002. 03. 25. 〇〇8 502489 Case number 90100078 γ f..1 _- ^ Travel π :! Year after year ^ ^ 'Jia1 correction' Schematic description, mm · — *** ~ .. ~ Simple diagram description The first diagram is an embodiment of the starting device of the present invention. The second figure shows the signal conversion and change in the starting device in this case, and the relationship between the signal and the change in motor speed. The third figure is another embodiment of the starting device of the present invention. The main components of the above diagram are as follows: 16 transistor 13 signal converter 15 charging circuit 11: motor 12: signal generator 14: comparator 1 7: drive circuit
第9頁 2002.03.25. 009Page 9 2002.03.25. 009
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TW90100078A TW502489B (en) | 2001-01-03 | 2001-01-03 | Starting apparatus and method |
JP2001370489A JP3701899B2 (en) | 2001-01-03 | 2001-12-04 | Starter and method for reducing peak current |
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TW90100078A TW502489B (en) | 2001-01-03 | 2001-01-03 | Starting apparatus and method |
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Cited By (1)
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TWI723912B (en) * | 2020-07-08 | 2021-04-01 | 車王電子股份有限公司 | Electric tool and its control method |
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2001
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TWI723912B (en) * | 2020-07-08 | 2021-04-01 | 車王電子股份有限公司 | Electric tool and its control method |
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JP2002223578A (en) | 2002-08-09 |
JP3701899B2 (en) | 2005-10-05 |
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