TWI555324B - DC brushless motor control system for AC power supply - Google Patents
DC brushless motor control system for AC power supply Download PDFInfo
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- TWI555324B TWI555324B TW103117155A TW103117155A TWI555324B TW I555324 B TWI555324 B TW I555324B TW 103117155 A TW103117155 A TW 103117155A TW 103117155 A TW103117155 A TW 103117155A TW I555324 B TWI555324 B TW I555324B
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Description
本發明係有關一種控制系統，特別是指一種將輸入之交流電訊號轉換為直流電訊號，進而得以控制直流無刷馬達驅動，以達成節能省電的目的，且不需更換舊有的管路配線、控制介面的控制系統 The invention relates to a control system, in particular to a method for converting an input alternating current signal into a direct current signal, thereby controlling a DC brushless motor drive to achieve energy saving and power saving, and without replacing the old pipeline wiring, Control interface control system
現今因能源價格高漲且熱污染環境嚴重，綠色環保議題不斷提倡節能與替代能源，但替代能源發展實屬不易，因此首要之急是先要節約能源，譬如，一般大樓裡的空調系統通常耗電量很高相當浪費能源，其主要原因是，空調系統在各樓層空間中設置了複數通風管道以及複數送風機以達到調節室溫、循環空氣的效果，而此類送風機馬達都是交流單相三速馬達，是一種屬於低效率、高耗電量的馬達，使用上相當浪費能源，而目前市面上推出一種直流無刷馬達效率高、耗電量低，所以如果送風機能改用直流無刷馬達，就能改善空調系統的高耗電量，進而達到節能環保的目的。 Nowadays, due to high energy prices and serious heat pollution, green environmental protection issues continue to promote energy conservation and alternative energy sources. However, alternative energy development is not easy. Therefore, the first priority is to save energy. For example, air conditioning systems in general buildings usually consume electricity. The high amount is quite wasteful of energy. The main reason is that the air-conditioning system has multiple ventilation ducts and multiple blowers in each floor space to achieve the effect of adjusting room temperature and circulating air. These blower motors are all AC single-phase three-speed. The motor is a kind of motor with low efficiency and high power consumption. It is quite wasteful in energy use. At present, a DC brushless motor is introduced on the market with high efficiency and low power consumption. Therefore, if the blower can be switched to a DC brushless motor, It can improve the high power consumption of the air conditioning system, thereby achieving the goal of energy saving and environmental protection.
以下列舉常見的空調系統送風機控制電路結構做說明：傳統空調系統其送風機馬達為使用交流電(AC)電源供電之交流單相三速馬達，透過交流電(AC)控制器以控制其高、中、低速，並以一控制介面例如溫度感應器、旋扭開關等，提供不同轉速訊號給交流電控制器，控制交流單相三速馬達的轉速。 The following is a description of the common air conditioning system blower control circuit structure. The conventional air conditioning system has a blower motor that is an AC single-phase three-speed motor that uses an alternating current (AC) power supply to control its high, medium, and low speeds through an alternating current (AC) controller. And a control interface such as a temperature sensor, a twist switch, etc., to provide different speed signals to the AC controller to control the speed of the AC single-phase three-speed motor.
傳統空調系統其送風機馬達為使用交流電(AC)電源供電之 交流單相三速馬達，並在電路結構中設置複數繼電器控制電路導通與斷開，也得以藉由不同繼電器的作動來控制交流單相三速馬達的轉速，傳統空調系統其送風機馬達為交流單相三速馬達使用交流電(AC)電源供電，在電路結構中設置複數單軸雙切換繼電器(Relay-SPDT，Relay-single pole double throw)控制電路導通與斷開，以切換電源、高速、中速或低速的單軸雙切換繼電器(Relay-SPDT，Relay-single pole double throw)上的接點以控制交流單相三速馬達。 The traditional air conditioning system has its blower motor powered by an alternating current (AC) power source. AC single-phase three-speed motor, and set the complex relay control circuit to be turned on and off in the circuit structure. It is also possible to control the speed of the AC single-phase three-speed motor by the action of different relays. The conventional air conditioning system has the blower motor as the exchange single. The phase three-speed motor is powered by an alternating current (AC) power supply, and a plurality of single-axis double-switching relays (Relay-SPDT, Relay-single pole double throw) control circuit are turned on and off in the circuit structure to switch the power supply, high speed, medium speed. Or a low-speed single-axis dual-switch relay (Relay-SPDT, Relay-single pole double throw) to control the AC single-phase three-speed motor.
由上述可知，由於傳統的空調系統是使用交流電訊號，亦或者其他電器設備例如空氣濾清系統或除濕系統等均是使用交流電訊號，而直流無刷馬達並無法讀取交流電訊號，因此施工時必須將全部的管路配線拆卸、替換，以供直流無刷馬達使用，其汰換的成本費用不僅是一種浪費，整個更換配線的工作更是一項繁複的工程，若改以新建系統而言，更將是花費高額的控制電路費用，並且無法讓使用者選擇已經慣用的控制介面；因此，如何在以最少成本、最低工程的施工之下，使舊有的空調系統改用高功率、低耗電量的直流無刷馬達，一直是業界極待突破的問題。 It can be seen from the above that since the conventional air conditioning system uses an alternating current signal, or other electrical equipment such as an air filtration system or a dehumidification system uses an alternating current signal, and the direct current brushless motor cannot read the alternating current signal, it must be constructed. All the pipeline wirings are disassembled and replaced for use in DC brushless motors. The cost of replacement is not only a waste, but the entire wiring replacement work is a complicated project. It will cost a lot of control circuitry and will not allow the user to choose the control interface that is already used; therefore, how to change the old air conditioning system to high power and low consumption with minimum cost and minimum engineering construction. The DC brushless motor of electric power has always been a problem that the industry needs to break through.
有鑒於此，本發明主要提供一種將輸入之交流電訊號轉換為直流電訊號，進而得以控制直流無刷馬達驅動，以達成節能省電目的之控制系統，且本發明不需更換舊有的管路配線或控制介面，為其主要目的者。 In view of the above, the present invention mainly provides a control system for converting an input AC signal into a DC signal, thereby controlling the DC brushless motor drive to achieve energy saving purposes, and the present invention does not need to replace the old pipeline wiring. Or control interface for its main purpose.
為達上揭目的，本發明之控制系統係電性連接於一主控制模組以及一直流無刷馬達之間，該控制系統至少包含有：交換式電源轉換電路、電壓轉換電路、中央處理電路、馬達驅動電路以及切換電路，由該交 換式電源轉換電路連接於該空調主控制模組並接收一交流電源，且將交流電源整流降壓濾波，以形成一穩定的直流電源，供直流無刷馬達運轉，使得傳統空調系統在不需要更換舊有的管路配線、控制介面下，經由本發明將空調系統中的交流電訊號轉換為直流電訊號，進而得以控制直流無刷馬達驅動，以達成節能省電的目的。 In order to achieve the above, the control system of the present invention is electrically connected between a main control module and a brushless motor. The control system includes at least: a switching power conversion circuit, a voltage conversion circuit, and a central processing circuit. , motor drive circuit and switching circuit, by the intersection The switching power conversion circuit is connected to the air conditioning main control module and receives an AC power supply, and the AC power is rectified and step-down filtered to form a stable DC power supply for the DC brushless motor to operate, so that the conventional air conditioning system is not required By replacing the old pipeline wiring and the control interface, the alternating current signal in the air conditioning system is converted into a direct current signal by the invention, thereby controlling the DC brushless motor drive to achieve the purpose of energy saving.
依據上述主要結構特徵，該交換式電源轉換電路具有相互連接之整流元件、限流元件、穩壓元件以及濾波元件。 According to the above main structural features, the switching power conversion circuit has mutually connected rectifying elements, current limiting elements, voltage stabilizing elements, and filtering elements.
上述之整流元件係設有複數串聯連接之二極體。 The above-mentioned rectifying element is provided with a plurality of diodes connected in series.
依據上述主要結構特徵，該限流元件係連接於該整流元件及該穩壓元件之間，該限流元件係設有至少一電阻。 According to the above main structural features, the current limiting component is connected between the rectifying component and the stabilizing component, and the current limiting component is provided with at least one resistor.
依據上述主要結構特徵，該穩壓元件係連接於該限流元件及該濾波元件之間，該穩壓元件係設有相互串聯之二極體及稽納二極體。 According to the above main structural features, the voltage stabilizing element is connected between the current limiting element and the filter element, and the voltage stabilizing element is provided with a diode and a Zener diode connected in series.
依據上述主要結構特徵，該濾波元件係設有相互連接之至少一電阻及一電容。 According to the above main structural features, the filter component is provided with at least one resistor and a capacitor connected to each other.
依據上述主要結構特徵，該控制系統進一步設有霍爾元件，該霍爾元件分別與該電壓轉換電路以及中央處理電路連接。 According to the above main structural features, the control system is further provided with a Hall element, which is respectively connected to the voltage conversion circuit and the central processing circuit.
上述之切換電路係為電晶體。 The above switching circuit is a transistor.
依據上述主要結構特徵，該控制系統可應用於空調系統、空氣濾清系統或除濕系統中。 According to the above main structural features, the control system can be applied to an air conditioning system, an air filtration system or a dehumidification system.
具體而言，本發明所揭露之控制系統，係可以產生下列功效： Specifically, the control system disclosed in the present invention can produce the following effects:
1.由該控制系統連接於該空調主控制模組並接收一交流電源，且將交流電源整流降壓濾波，以形成一穩定的直流電源，供直流無刷馬達運轉，不僅提升效率並可達成節能省電的目的。 1. The control system is connected to the air conditioning main control module and receives an AC power supply, and the AC power is rectified and step-down filtered to form a stable DC power supply for the DC brushless motor to operate, which not only improves efficiency but also achieves The purpose of energy saving.
2.本發明可讓傳統空調系統在不需要更換舊有的管路配線或控制介面，直接將感應馬達改為直流無刷馬達。 2. The invention can make the traditional air conditioning system directly change the induction motor to a DC brushless motor without replacing the old pipeline wiring or control interface.
3.尚可霍爾元件之運作下，可控制直流無刷馬達內轉子的轉動速度、轉動位置。 3. Under the operation of the Shangke Hall element, the rotational speed and rotational position of the inner rotor of the brushless DC motor can be controlled.
10‧‧‧控制系統 10‧‧‧Control system
11‧‧‧交換式電源轉換電路 11‧‧‧Switching power conversion circuit
111‧‧‧整流元件 111‧‧‧Rectifying components
112‧‧‧限流元件 112‧‧‧ Current limiting components
113‧‧‧穩壓元件 113‧‧‧Regulator components
114‧‧‧濾波元件 114‧‧‧Filter components
115‧‧‧二極體 115‧‧‧ diode
116‧‧‧電阻 116‧‧‧resistance
117‧‧‧稽納二極體 117‧‧‧Jenner diode
118‧‧‧電容 118‧‧‧ Capacitance
12‧‧‧電壓轉換電路 12‧‧‧Voltage conversion circuit
13‧‧‧中央處理電路 13‧‧‧Central Processing Circuit
14‧‧‧馬達驅動電路 14‧‧‧Motor drive circuit
15‧‧‧切換電路 15‧‧‧Switching circuit
16‧‧‧霍爾元件 16‧‧‧ Hall element
20‧‧‧主控制模組 20‧‧‧Main control module
30‧‧‧直流無刷馬達 30‧‧‧DC brushless motor
31‧‧‧風扇 31‧‧‧Fan
41‧‧‧室內端 41‧‧‧ indoor end
42‧‧‧室外端 42‧‧‧Outdoor
43‧‧‧壓縮機 43‧‧‧Compressor
第一圖係為本發明中第一實施例之控制系統基本架構圖。 The first figure is a basic architecture diagram of the control system of the first embodiment of the present invention.
第二圖係為本發明中第一實施例之控制系統電路示意圖。 The second figure is a circuit diagram of the control system of the first embodiment of the present invention.
第三圖係為本發明中交換式電源轉換電路之電路示意圖。 The third figure is a circuit diagram of the switching power conversion circuit of the present invention.
第四圖係為本發明中第二實施例之控制系統電路示意圖。 The fourth figure is a circuit diagram of the control system of the second embodiment of the present invention.
第五圖係為本發明中控制系統應用於空調系統之使用示意圖。 The fifth figure is a schematic diagram of the use of the control system in the air conditioning system of the present invention.
如第一圖所示，本發明之控制系統10，基本上係電性連接於一主控制模組20以及一直流無刷馬達30之間，該控制系統10至少包含有：至少一交換式電源轉換電路11、電壓轉換電路12、中央處理電路13、馬達驅動電路14以及切換電路15；其中：該交換式電源轉換電路11用以與該空調主控制模組20連接並接收一交流電源，將該交流電源轉換為直流電源，請同時參閱第二圖及第三圖所示，該交換式電源轉換電路11具有相互連接之整流元件111、限流元件112、穩壓元件113以及濾波元件114。 As shown in the first figure, the control system 10 of the present invention is substantially electrically connected between a main control module 20 and a brushless motor 30. The control system 10 includes at least one switching power supply. a conversion circuit 11, a voltage conversion circuit 12, a central processing circuit 13, a motor drive circuit 14, and a switching circuit 15; wherein: the switching power conversion circuit 11 is connected to the air conditioning main control module 20 and receives an AC power supply, The AC power source is converted into a DC power source. Please refer to FIG. 2 and FIG. 3 simultaneously. The switching power supply conversion circuit 11 has a rectifying element 111, a current limiting element 112, a voltage stabilizing element 113, and a filtering element 114 connected to each other.
其中，該整流元件111係設有複數順向串聯連接之二極體115，該限流元件112係連接於該整流元件111及該穩壓元件113之間，該限流元件112係設有至少一電阻116，該穩壓元件113係連接於該限流元件112 及該濾波元件114之間，該穩壓元件113係設有相互串聯之二極體115及稽納二極體117，該濾波元件114係設有相互連接之至少一電阻116及一電容118。 The rectifying element 111 is provided with a plurality of diodes 115 connected in series in the forward direction. The current limiting element 112 is connected between the rectifying element 111 and the stabilizing element 113. The current limiting element 112 is provided with at least a resistor 116, the voltage stabilizing element 113 is connected to the current limiting component 112 The voltage stabilizing element 113 is provided with a diode 115 and a Zener diode 117 connected in series with each other. The filter element 114 is provided with at least one resistor 116 and a capacitor 118 connected to each other.
該電壓轉換電路12係與該交換式電源轉換電路11連接，將上述直流電源轉換為至少一驅動電壓。 The voltage conversion circuit 12 is connected to the switching power conversion circuit 11 to convert the DC power supply into at least one driving voltage.
該中央處理電路13係分別與該交換式電源轉換電路11以及電壓轉換電路12連接，可接收上述之驅動電壓，以及交換式電源轉換電路11之訊號；該馬達驅動電路14係分別與該電壓轉換電路12以及中央處理電路13連接，可接收上述之驅動電壓，以及接收該中央處理電路13之訊號而轉換為驅動馬達之驅動訊號。 The central processing circuit 13 is respectively connected to the switching power conversion circuit 11 and the voltage conversion circuit 12, and can receive the driving voltage and the signal of the switching power conversion circuit 11; the motor driving circuit 14 is respectively converted with the voltage The circuit 12 and the central processing circuit 13 are connected to receive the above-mentioned driving voltage, and receive the signal of the central processing circuit 13 to be converted into a driving signal of the driving motor.
該切換電路15係分別與該馬達驅動電路14、電壓轉換電路12以及直流無刷馬達30連接，可接收上述之驅動電壓，以及接收上述之驅動訊號並驅動該直流無刷馬達30進行運轉，本發明實施例中，該切換電路15係為電晶體。 The switching circuit 15 is connected to the motor driving circuit 14, the voltage converting circuit 12, and the DC brushless motor 30, and can receive the driving voltage, receive the driving signal, and drive the DC brushless motor 30 to operate. In the embodiment of the invention, the switching circuit 15 is a transistor.
使用時，該空調主控制模組20提供一交流電源至該交換式電源轉換電路11，先由複數串聯連接之二極體115所形成之整流元件111，將交流電源做整流，再由電阻116進行限流作用，且藉由二極體115及稽納二極體117穩定電壓，並藉由電阻116及電容118作為濾波元件修正電壓波形，以形成一穩定之直流電源，而完成交流電源之轉換。 In use, the air conditioning main control module 20 provides an AC power supply to the switching power conversion circuit 11, firstly rectifying the AC power by a rectifying element 111 formed by a plurality of diodes 115 connected in series, and then by the resistor 116. The current limiting function is performed, and the voltage is stabilized by the diode 115 and the sigma diode 117, and the voltage waveform is corrected by using the resistor 116 and the capacitor 118 as a filter component to form a stable DC power source, and the AC power source is completed. Conversion.
而上述電壓轉換電路12接收該穩定之直流電源，並轉換為至少一驅動電壓，該電壓轉換電路12可以為降壓(Buck)轉換器將上述大電壓之直流電源轉換複數不同驅動電壓，例如可轉換為較低電壓以供應該中央處理電路13、馬達驅動電路14及該切換電路15運作，以及可轉換為可驅動直流無刷馬達30運轉之驅動電壓。 The voltage conversion circuit 12 receives the stable DC power supply and converts it into at least one driving voltage. The voltage conversion circuit 12 can be a buck converter to convert the DC power of the large voltage into a plurality of different driving voltages, for example, The conversion is made to a lower voltage to supply the central processing circuit 13, the motor drive circuit 14, and the switching circuit 15, and can be converted into a driving voltage that can drive the operation of the brushless DC motor 30.
而該交換式電源轉換電路11之訊號並傳送至該中央處理電 路13，由該中央處理電路13進行處理後經由該馬達驅動電路14可轉換為驅動馬達之驅動訊號，最後經由該切換電路15將該驅動訊號控制該直流無刷馬達30進行運轉。 And the signal of the switching power conversion circuit 11 is transmitted to the central processing power The circuit 13 is processed by the central processing circuit 13 and converted into a driving signal for driving the motor via the motor driving circuit 14. Finally, the driving signal is controlled to operate the DC brushless motor 30 via the switching circuit 15.
其中，該中央處理電路亦可具有下列控制模式： The central processing circuit can also have the following control modes:
1.可選擇以弦波或方波驅動模式。 1. You can choose to drive in sine wave or square wave mode.
2.可偵測前端不同輸入交流電源作為判斷直流無刷馬達段速之依據，例如依不同輸入交流電源之大小，來控制直流無刷馬達形成2、3、4等不同快慢段速。 2. It can detect the different input AC power of the front end as the basis for judging the speed of the DC brushless motor. For example, according to the size of different input AC power, the DC brushless motor can be controlled to form different speeds of 2, 3, 4 and so on.
3.可以PWM(Pulse Width Modulation，脈衝寬度調變)的方式進行輸入馬達之電壓調變。 3. The voltage modulation of the input motor can be performed by PWM (Pulse Width Modulation).
再者，該控制系統進一步設有霍爾元件16，如第四圖之第二實施例所示，該霍爾元件16分別與該電壓轉換電路12以及中央處理電路13連接，可由該霍爾元件16來偵測直流無刷馬達內轉子之永久磁鐵之磁極變化形成微弱的霍爾電壓，並傳送至該中央處理電路13進而控制直流無刷馬達內轉子的轉動速度、轉動位置。 Furthermore, the control system is further provided with a Hall element 16, as shown in the second embodiment of the fourth figure, the Hall element 16 is respectively connected to the voltage conversion circuit 12 and the central processing circuit 13, and the Hall element can be 16 detects the magnetic pole change of the permanent magnet of the inner rotor of the brushless DC motor to form a weak Hall voltage, and transmits it to the central processing circuit 13 to control the rotational speed and rotational position of the inner rotor of the brushless DC motor.
值得一提的是，本發明之控制系統可整合於一電路板上，並可直接裝設於該空調主控制模組及該直流無刷馬達之間，可讓傳統空調系統在不需要更換舊有的管路配線或控制介面，直接將感應馬達改為直流無刷馬達，並利用直流無刷馬達之運作達到提升效率及節能省電的目的。 It is worth mentioning that the control system of the present invention can be integrated on a circuit board and can be directly installed between the air conditioning main control module and the DC brushless motor, so that the traditional air conditioning system does not need to be replaced. Some pipeline wiring or control interface directly converts the induction motor into a DC brushless motor, and uses the operation of the DC brushless motor to achieve the purpose of improving efficiency and saving energy.
另外，本發明使用時亦可如第五圖所示之實施例中，該控制系統10係應用於一空調系統40中，該空調系統40具有一主控模組20及一直流無刷馬達30，而該控制系統10係電性連接於該主控制模組20以及該直流無刷馬達30之間，亦可如圖所示之實施例中，該控制系統10係內建於該直流無刷馬達30內再與該主控制模組20電性連接，其中該空調系統40係具有室內端41與室外端42，其中該直流無刷馬達30係設置於該 室內端41及室外端42之間，該直流無刷馬達30並分別設有對應該室內端41及該室外端42之風扇31，而該控制系統10則與該直流無刷馬達30連接，可驅動該直流無刷馬達30進行運轉，並利用直流無刷馬達30帶動其兩端之風扇31轉動，同時經由一壓縮機43之作用，進而由該些風扇31分別將氣流往室內端41或室外端42導引，而達到預定溫度調節之效果。 In addition, the present invention can also be used in the embodiment shown in FIG. 5 , the control system 10 is applied to an air conditioning system 40 having a main control module 20 and a DC brushless motor 30 . The control system 10 is electrically connected between the main control module 20 and the DC brushless motor 30. Alternatively, in the embodiment shown in the figure, the control system 10 is built in the DC brushless The motor 30 is electrically connected to the main control module 20, wherein the air conditioning system 40 has an indoor end 41 and an outdoor end 42, wherein the DC brushless motor 30 is disposed in the Between the indoor end 41 and the outdoor end 42, the DC brushless motor 30 is respectively provided with a fan 31 corresponding to the indoor end 41 and the outdoor end 42, and the control system 10 is connected to the DC brushless motor 30, The DC brushless motor 30 is driven to operate, and the DC brushless motor 30 is used to drive the fans 31 at both ends thereof to rotate, and at the same time, the fans 31 respectively pass the airflow to the indoor end 41 or the outdoor via the action of a compressor 43. The end 42 is guided to achieve the effect of a predetermined temperature adjustment.
當然，本發明之控制系統亦可進一步應用於一空氣濾清系統或除濕系統中，其中，該空氣濾清系統或該除濕系統係具有吸入端及排出端，且該直流無刷馬達係連接有風扇，且該風扇係位於該吸入端及排出端之間，可經由內部部件之處理而到空氣清淨或除濕之效果。 Of course, the control system of the present invention can be further applied to an air filtration system or a dehumidification system, wherein the air filtration system or the dehumidification system has a suction end and a discharge end, and the DC brushless motor is connected A fan, and the fan is located between the suction end and the discharge end, and can be cleaned or dehumidified by the treatment of internal components.
綜上所述，本發明提供一較佳可行之控制系統，爰依法提呈發明專利之申請；本發明之技術內容及技術特點已揭示如上，然而熟悉本項技術之人士仍可能基於本發明之揭示而作各種不背離本案發明精神之替換及修飾。因此，本發明之保護範圍應不限於實施例所揭示者，而應包括各種不背離本發明之替換及修飾，並為以下之申請專利範圍所涵蓋。 In summary, the present invention provides a preferred and feasible control system, and an application for an invention patent is provided according to the law; the technical content and technical features of the present invention have been disclosed above, but those skilled in the art may still be based on the present invention. It is to be understood that various changes and modifications may be made without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being limited by the scope of the appended claims
10‧‧‧控制系統 10‧‧‧Control system
11‧‧‧交換式電源轉換電路 11‧‧‧Switching power conversion circuit
12‧‧‧電壓轉換電路 12‧‧‧Voltage conversion circuit
13‧‧‧中央處理電路 13‧‧‧Central Processing Circuit
14‧‧‧馬達驅動電路 14‧‧‧Motor drive circuit
15‧‧‧切換電路 15‧‧‧Switching circuit
20‧‧‧空調主控制模組 20‧‧‧Air conditioning main control module
30‧‧‧直流無刷馬達 30‧‧‧DC brushless motor
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| TW103117155A TWI555324B (en) | 2014-05-15 | 2014-05-15 | DC brushless motor control system for AC power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| TW103117155A TWI555324B (en) | 2014-05-15 | 2014-05-15 | DC brushless motor control system for AC power supply |
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| TW201543800A TW201543800A (en) | 2015-11-16 |
| TWI555324B true TWI555324B (en) | 2016-10-21 |
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| CN105743101A (en) * | 2016-03-07 | 2016-07-06 | 浙江涌原新能科技有限公司 | Power saving device for large power equipment |
Citations (5)
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|---|---|---|---|---|
| TW463454B (en) * | 1999-03-31 | 2001-11-11 | Hitachi Ltd | Electric motor driving apparatus, control conversion device and air conditioner |
| TWM244650U (en) * | 2003-06-23 | 2004-09-21 | Yen Sun Technology Corp | Power control circuit device of DC brushless fan motor |
| TWI237440B (en) * | 2001-10-17 | 2005-08-01 | Prolific Technology Inc | AC brushless motor controlling device driven by AC/DC |
| TW201220673A (en) * | 2010-11-02 | 2012-05-16 | Delta Electronics Inc | Driving device of brushless DC motor for fan |
| TW201249093A (en) * | 2011-05-23 | 2012-12-01 | Delta Electronics Inc | Ventilation apparatus with feedback compensation control and method for operating the same |
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2014
- 2014-05-15 TW TW103117155A patent/TWI555324B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW463454B (en) * | 1999-03-31 | 2001-11-11 | Hitachi Ltd | Electric motor driving apparatus, control conversion device and air conditioner |
| TWI237440B (en) * | 2001-10-17 | 2005-08-01 | Prolific Technology Inc | AC brushless motor controlling device driven by AC/DC |
| TWM244650U (en) * | 2003-06-23 | 2004-09-21 | Yen Sun Technology Corp | Power control circuit device of DC brushless fan motor |
| TW201220673A (en) * | 2010-11-02 | 2012-05-16 | Delta Electronics Inc | Driving device of brushless DC motor for fan |
| TW201249093A (en) * | 2011-05-23 | 2012-12-01 | Delta Electronics Inc | Ventilation apparatus with feedback compensation control and method for operating the same |
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| TW201543800A (en) | 2015-11-16 |
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