TWI493208B - Alternate current detector - Google Patents
Alternate current detector Download PDFInfo
- Publication number
- TWI493208B TWI493208B TW102126043A TW102126043A TWI493208B TW I493208 B TWI493208 B TW I493208B TW 102126043 A TW102126043 A TW 102126043A TW 102126043 A TW102126043 A TW 102126043A TW I493208 B TWI493208 B TW I493208B
- Authority
- TW
- Taiwan
- Prior art keywords
- sensing device
- power sensing
- pin
- coupled
- power
- Prior art date
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
本發明係有關於交流電源，特別是有關於交流電源之感測裝置。 The present invention relates to an alternating current power source, and more particularly to a sensing device for an alternating current power source.
交流電(Alternating Current，AC)是指大小和方向都發生週期性變化的電流，在一個週期內的運行平均值為零。相較於方向不隨時間發生改變的直流電，交流電係傳輸電能較有效率的方式，因此目前各國的商用及民用電力供應均係採用交流電的方式。 Alternating Current (AC) is a current that varies periodically in both size and direction, with an average running value of zero in one cycle. Compared with DC power whose direction does not change with time, AC power transmission is more efficient. Therefore, the commercial and civil power supply in various countries is based on AC.
由於大部分的電器設備都係以交流電源供應電能，若交流電源無法正常供電，電器設備便無法正常運作，容易造成工業生產過程的重大損失。因此，偵測交流電源是否正常供電便成為待解決的重要課題。 Since most of the electrical equipment is powered by AC power, if the AC power supply cannot be properly supplied, the electrical equipment cannot operate normally, which is likely to cause significant loss in the industrial production process. Therefore, detecting whether the AC power supply is normally powered is an important issue to be solved.
第8圖為中華民國專利公告號第M450732號的專利案所提供一種電壓偵測裝置800的區塊圖。電壓偵測裝置800接收一外部交流電源之波形訊號，並將外部交流電源之波形訊號之振幅值與一備用交流電源之波形訊號之振幅值相比較。若外部交流電源與備用交流電源於相同時點之振幅值。若該外部交流電源波形之振幅值小於該備用交流電源波形之振幅值時，即表示該外部交流電源的電壓降低且低於備用交流電源的電壓額定值。此時一控制單元則立刻將一機器設備由連通於外部交流電源之狀態切換至連通於該備用交流電源之狀態，藉此以避免外部交流電源的電壓驟降引起機器設備的當機且停止運轉的情形，以維持機器設備的正常運轉。 Figure 8 is a block diagram of a voltage detecting device 800 provided by the Patent Office No. M450732 of the Republic of China. The voltage detecting device 800 receives a waveform signal of an external AC power source, and compares the amplitude value of the waveform signal of the external AC power source with the amplitude value of the waveform signal of a standby AC power source. If the external AC power supply and the standby AC power supply are at the same time amplitude value. If the amplitude value of the external AC power waveform is smaller than the amplitude of the standby AC power waveform, it means that the voltage of the external AC power source is lower than the voltage rating of the standby AC power source. At this time, a control unit immediately switches a state of the device from the state of being connected to the external AC power source to a state of being connected to the standby AC power source, thereby preventing the voltage of the external AC power source from causing the machine to be down and shut down. The situation to maintain the normal operation of the machine.
然而，目前大部分的交流電源偵測裝置，均須耦接至交 流電源本身。如第8圖的先前技術，電壓偵測裝置800必須耦接至外部交流電源，才能偵測並比較外部交流電的電壓是否降低。若交流電源偵測裝置耦接至交流電源，形同增加了交流電源的負載，會造成額外的耗電。 However, most of the current AC power detection devices must be coupled to Stream power itself. As in the prior art of FIG. 8, the voltage detecting device 800 must be coupled to an external AC power source to detect and compare whether the voltage of the external AC power is reduced. If the AC power detecting device is coupled to the AC power source, the load of the AC power source is increased, which causes additional power consumption.
針對上述存在的問題，本發明提供一種交流電源感測裝置。於一實施例中，該交流電源感測裝置包括一外殼、一螺線管、一整流濾波電路、以及一放大驅動電路。該外殼包括一位於其正中央的一穿孔，該穿孔可容納負載有一交流電源之一電線穿過其中。該螺線管位於該外殼內部且圍繞於該穿孔週圍，感測該電線上之該交流電源所產生之一磁場而產生一第一電壓。該整流濾波電路位於該外殼內部，對該第一電壓進行整流及濾波以於產生一第二電壓。該放大驅動電路位於該外殼內部，放大該第二電壓以於一第一輸出端及一第二輸出端之間產生一輸出電流。 In view of the above problems, the present invention provides an AC power sensing device. In one embodiment, the AC power sensing device includes a housing, a solenoid, a rectifying and filtering circuit, and an amplifying driving circuit. The housing includes a perforation in the center thereof that receives a wire through which an AC power source is loaded. The solenoid is located inside the casing and surrounds the perforation, and senses a magnetic field generated by the AC power source on the wire to generate a first voltage. The rectifying and filtering circuit is located inside the casing, and rectifies and filters the first voltage to generate a second voltage. The amplifying driving circuit is located inside the casing, and the second voltage is amplified to generate an output current between a first output end and a second output end.
本發明提供一種交流電源感測裝置。於一實施例中，該交流電源感測裝置包括一磁場感應電路、一整流濾波電路、以及一放大驅動電路。該磁場感應電路感應一特定區域之一磁場並依據該磁場之強度於一第一節點產生一第一電壓，其中載有一交流電源之一導線於該特定區域產生該磁場。該整流濾波電路耦接於該第一節點以及一第二節點之間，對該第一電壓進行整流及濾波以於該第二節點產生一第二電壓。該放大驅動電路耦接至該第二節點，放大該第二電壓以於一第一輸出端及一第二輸出端之間產生一輸出電流。 The invention provides an AC power sensing device. In one embodiment, the AC power sensing device includes a magnetic field sensing circuit, a rectifying and filtering circuit, and an amplifying driving circuit. The magnetic field sensing circuit senses a magnetic field of a specific region and generates a first voltage at a first node according to the intensity of the magnetic field, wherein a wire carrying an alternating current power source generates the magnetic field in the specific region. The rectifying and filtering circuit is coupled between the first node and a second node, and rectifies and filters the first voltage to generate a second voltage at the second node. The amplifying driving circuit is coupled to the second node, and the second voltage is amplified to generate an output current between a first output end and a second output end.
本發明之交流電源感測裝置直接感應交流電所產生之磁場，因此無侵入性，因此可以很方便地在既有的各種設備上加裝此一感測裝置，無需拆卸或破壞既有設備。此外，本發明之交流電源感測裝置利用磁場感應產生之電力點亮指示燈而無需外加電源。另外，本發明之交流電源感測裝置將感應之交流信號轉成數位化之ON/OFF電子信 號，不受干擾並可長距離偵測。最後，本發明之多個交流電源感測裝置可相互串接以節省可程式化邏輯電路之輸入接點。 The AC power sensing device of the present invention directly senses the magnetic field generated by the alternating current, and thus is non-invasive, so that the sensing device can be conveniently installed on various existing devices without disassembling or destroying the existing device. In addition, the AC power sensing device of the present invention utilizes the power generated by the magnetic field to illuminate the indicator light without the need for an external power source. In addition, the AC power sensing device of the present invention converts the sensed AC signal into a digitalized ON/OFF electronic message. No. Undisturbed and can be detected over long distances. Finally, the plurality of AC power sensing devices of the present invention can be connected in series to each other to save input contacts of the programmable logic circuit.
(第1圖) (Figure 1)
100‧‧‧交流電源感測裝置 100‧‧‧AC power sensing device
120‧‧‧指示燈 120‧‧‧ indicator light
110‧‧‧穿孔 110‧‧‧Perforation
130‧‧‧接腳組 130‧‧‧Feet set
130a、130b、130c、130d‧‧‧接腳 130a, 130b, 130c, 130d‧‧‧ pins
(第3圖) (Fig. 3)
300‧‧‧交流電源感測裝置 300‧‧‧AC power sensing device
350‧‧‧導線 350‧‧‧ wire
330a、330b‧‧‧接腳 330a, 330b‧‧‧ pins
(第5圖) (Figure 5)
500‧‧‧交流電源感測裝置 500‧‧‧AC power sensing device
560‧‧‧磁場感應電路 560‧‧‧Magnetic field sensing circuit
561‧‧‧螺線管 561‧‧‧ Solenoid
570‧‧‧指示燈 570‧‧‧ indicator light
571‧‧‧LED指示燈 571‧‧‧LED indicator
572‧‧‧電阻 572‧‧‧resistance
580‧‧‧整流濾波電路 580‧‧‧Rectifier filter circuit
581‧‧‧二極體 581‧‧‧ diode
582‧‧‧電容 582‧‧‧ Capacitance
590‧‧‧放大驅動電路 590‧‧‧Amplification drive circuit
591、592‧‧‧電晶體 591, 592‧‧‧Optoelectronics
593‧‧‧電阻 593‧‧‧resistance
(第6A圖、第6B圖、第7圖) (Fig. 6A, Fig. 6B, Fig. 7)
600、650、710、720、…、7n0‧‧‧交流電源感測裝置 600, 650, 710, 720, ..., 7n0‧‧‧ AC power sensing device
640、690、700‧‧‧可程式化邏輯電路 640, 690, 700‧‧‧ programmable logic circuits
630a、630b、630c、630d、680a、680b、680c、680d、710a、710b、710c、710d、720a、720b、720c、720d、7n0a、7n0b、7n0c、7n0d‧‧‧接腳 630a, 630b, 630c, 630d, 680a, 680b, 680c, 680d, 710a, 710b, 710c, 710d, 720a, 720b, 720c, 720d, 7n0a, 7n0b, 7n0c, 7n0d‧‧‧ pins
第1圖為依據本發明之交流電源感測裝置的正面示意圖；第2A圖為依據本發明之交流電源感測裝置的立體示意圖；第2B圖為通過之交流電源感測裝置中央之穿孔之交流電源所產生之磁場的示意圖；第3圖為交流電源感測裝置與帶有交流電的導線的示意圖；第4圖為交流電源感測裝置之輸出電壓與交流電之電流均方根值的對應關係之示意圖；第5圖為依據本發明之交流電源感測裝置之區塊圖；第6A圖為依據本發明之交流電源感測裝置與可程式化邏輯電路連接之一實施例之示意圖；第6B圖為依據本發明之交流電源感測裝置與可程式化邏輯電路連接之另一實施例之示意圖；第7圖為依據本發明之多個交流電源感測裝置與可程式化邏輯電路連接之一實施例之示意圖；第8圖為中華民國專利公告號第M450732號的專利案所提供一種電壓偵測裝置的區塊圖。 1 is a front view of an AC power sensing device according to the present invention; FIG. 2A is a schematic perspective view of an AC power sensing device according to the present invention; FIG. 2B is a cross-sectional AC through a center of an AC power sensing device. Schematic diagram of the magnetic field generated by the power source; Figure 3 is a schematic diagram of the AC power sensing device and the wire with alternating current; Figure 4 is the corresponding relationship between the output voltage of the AC power sensing device and the rms current of the alternating current FIG. 5 is a block diagram of an AC power sensing device according to the present invention; FIG. 6A is a schematic diagram of an embodiment of an AC power sensing device and a programmable logic circuit according to the present invention; FIG. FIG. 7 is a schematic diagram showing another embodiment of connecting an AC power sensing device and a programmable logic circuit according to the present invention; FIG. 7 is a diagram showing a connection between a plurality of AC power sensing devices and a programmable logic circuit according to the present invention; A schematic diagram of an example; FIG. 8 is a block diagram of a voltage detecting device provided by the Patent No. M450732 of the Republic of China.
下面結合圖示和具體操作之實施例對本發明作進一步說明。 The invention will now be further described with reference to the drawings and specific embodiments of the invention.
第1圖為依據本發明之一交流電源感測裝置100的正面示意圖。交流電源感測裝置100之正面的正中央具有一穿孔110，穿孔110可容納一電線穿過其中，該電線上負載有一交流電源。另外，交流電 源感測裝置100之正面亦具有一指示燈120。交流電源感測裝置100藉由指示燈120顯示是否電線上負載之交流電源之振幅達到一正常位準。若交流電源之振幅達到正常位準，指示燈120則發亮；反之，若電線上未負載交流電源或交流電源之振幅未達到正常位準，指示燈120則熄滅。因此，使用者可藉指示燈120之明滅狀態瞭解是否電線上負載之交流電源之振幅達到正常位準。 1 is a front elevational view of an AC power sensing device 100 in accordance with the present invention. The center of the front side of the AC power sensing device 100 has a through hole 110 through which a through hole 110 can accommodate a wire through which an AC power source is loaded. In addition, AC The front side of the source sensing device 100 also has an indicator light 120. The AC power sensing device 100 indicates by the indicator light 120 whether the amplitude of the AC power source loaded on the wire reaches a normal level. If the amplitude of the AC power source reaches the normal level, the indicator light 120 is illuminated; otherwise, if the amplitude of the unpowered AC power source or the AC power source on the wire does not reach the normal level, the indicator light 120 is extinguished. Therefore, the user can use the blinking state of the indicator light 120 to know whether the amplitude of the AC power source loaded on the wire reaches a normal level.
此外，交流電源感測裝置100之正面亦具有一接腳組130。於一實施例中，接腳組130包括四個接腳130a、130b、130c、130d。接腳130a及130b為交流電源感測裝置100之兩輸出端，亦即，交流電源感測裝置100係於該接腳130a及130b之間產生之一輸出電流。當電線負載之交流電源具有正常位準，交流電源感測裝置100於接腳130a及130b之間產生之輸出電流係等於一第一位準。當電線上未負載交流電源或電線負載之交流電源低於正常位準，交流電源感測裝置100於接腳130a及130b之間產生之輸出電流係等於一第二位準。因此，使用者可藉交流電源感測裝置100產生之輸出電流的大小瞭解是否電線上負載之交流電源之振幅達到正常位準。 In addition, the front side of the AC power sensing device 100 also has a pin set 130. In one embodiment, the pin set 130 includes four pins 130a, 130b, 130c, 130d. The pins 130a and 130b are the two output ends of the AC power sensing device 100, that is, the AC power sensing device 100 generates an output current between the pins 130a and 130b. When the AC power source of the wire load has a normal level, the output current generated by the AC power sensing device 100 between the pins 130a and 130b is equal to a first level. When the unpowered AC power or the wire load AC power on the wire is lower than the normal level, the output current generated by the AC power sensing device 100 between the pins 130a and 130b is equal to a second level. Therefore, the user can use the magnitude of the output current generated by the AC power sensing device 100 to know whether the amplitude of the AC power source loaded on the wire reaches a normal level.
於一實施例中，接腳組130更包括接腳130c及130d。接腳130c耦接至130d，供交流電源感測裝置100與其他多個交流電源感測裝置相串連時使用。交流電源感測裝置100與其他多個交流電源感測裝置相串連的方式將於第7圖進一步說明。 In an embodiment, the pin set 130 further includes pins 130c and 130d. The pin 130c is coupled to the 130d for use when the AC power sensing device 100 is connected in series with other AC power sensing devices. The manner in which the AC power sensing device 100 is connected in series with a plurality of other AC power sensing devices will be further described in FIG.
第2A圖為依據本發明之交流電源感測裝置的立體示意圖。一電線穿過交流電源感測裝置正中央的穿孔。該電線並未與交流電源感測裝置相耦接，因此交流電源感測裝置不會變成電線上交流電源的負載，也不會導致額外的電力損耗。電線上帶有交流電Ip。當電線上的交流電Ip隨著時間改變振幅大小，會於電線的週圍感應產生一磁場，磁場強度隨交流電Ip之振幅而改變，如第2B圖所示。因此，交流電源感測裝置便可藉著感應中央穿孔週圍之磁場而決定指示燈的明滅狀態及輸出電流的位準。 2A is a perspective view of an AC power sensing device in accordance with the present invention. A wire passes through the perforation in the center of the AC power sensing device. The wire is not coupled to the AC power sensing device, so the AC power sensing device does not become a load on the AC power source of the wire and does not cause additional power loss. The electric current Ip is on the wire. When the alternating current Ip on the wire changes amplitude with time, a magnetic field is induced around the wire, and the strength of the magnetic field changes with the amplitude of the alternating current Ip, as shown in Fig. 2B. Therefore, the AC power sensing device can determine the extinguishing state of the indicator light and the level of the output current by sensing the magnetic field around the central perforation.
第3圖為交流電源感測裝置300與帶有交流電的導線350的示意圖。交流電源感測裝置300之中央具有一穿孔310。導線350帶有交流電Ip並由穿孔310中通過。同時，交流電源感測裝置300具有輸出端330a及330b。交流電源感測裝置300感測穿孔310週圍由交流電Ip產生的磁場而於輸出端產生330a及330b之間產生一輸出電流。於一實施例中，輸出端的負載電阻為2KΩ，流經輸出端330a及330b的電流為Ic，而輸出電流Ic之位準為[24V-0.8V]/2KΩ。 3 is a schematic diagram of an AC power sensing device 300 and a lead 350 with alternating current. The center of the AC power sensing device 300 has a through hole 310. The wire 350 carries an alternating current Ip and passes through the perforations 310. At the same time, the AC power sensing device 300 has outputs 330a and 330b. The AC power sensing device 300 senses a magnetic field generated by the alternating current Ip around the perforation 310 to generate an output current between the output terminals 330a and 330b. In one embodiment, the load resistance at the output is 2KΩ, the current flowing through the output terminals 330a and 330b is Ic, and the level of the output current Ic is [24V-0.8V]/2KΩ.
第4圖為交流電源感測裝置之輸出電壓Vce與交流電之電流均方根值Ip的對應關係之示意圖。交流電源感測裝置之輸出電壓Vce具有兩個位準，第一位準為0.8V，而第二位準為24V。當交流電之電流均方根值Ip由0A上升至1A，則交流電源感測裝置之輸出電壓Vce於時段TPHL中自第二位準24V下降至第一位準0.8V。當交流電之電流均方根值Ip由1A下降至0A，則交流電源感測裝置之輸出電壓Vce於時段TPLH中自第一位準0.8V上升至第二位準24V之75%水準。因此，使用者可藉由輸出電壓Vce之位準來判斷交流電源Ip是否位於正常位準。 Fig. 4 is a view showing the correspondence relationship between the output voltage Vce of the AC power supply sensing device and the rms current Ip of the alternating current. The output voltage Vce of the AC power sensing device has two levels, the first level is 0.8V, and the second level is 24V. When the rms current Ip of the alternating current rises from 0A to 1A, the output voltage Vce of the alternating current power sensing device drops from the second level 24V to the first level 0.8V in the period TPHL. When the rms current Ip of the alternating current drops from 1A to 0A, the output voltage Vce of the alternating current power sensing device rises from the first level 0.8V in the period TPLH to the 75% level of the second level 24V. Therefore, the user can judge whether the AC power source Ip is at a normal level by the level of the output voltage Vce.
第5圖為依據本發明之交流電源感測裝置500之區塊圖。於一實施例中，交流電源感測裝置500包括一磁場感應電路560、一指示燈570、一整流濾波電路580、以及一放大驅動電路590。磁場感應電路560感應交流電源感測裝置500之外殼的中央穿孔之週圍區域之一磁場並依據該磁場之強度於第一節點551產生一第一電壓。於一實施例中，磁場感應電路560包括一螺線管(solenoid)561，用以感測載有一交流電源之一導線於該中央穿孔之週圍區域所產生的磁場。指示燈570耦接於第一節點551與地電位之間，依據第一電壓的強度發光。於一實施例中，指示燈570包含電阻572及一LED指示燈571。 Figure 5 is a block diagram of an AC power sensing device 500 in accordance with the present invention. In one embodiment, the AC power sensing device 500 includes a magnetic field sensing circuit 560, an indicator light 570, a rectifying and filtering circuit 580, and an amplifying driving circuit 590. The magnetic field sensing circuit 560 senses a magnetic field in a surrounding area of the central perforation of the outer casing of the alternating current power sensing device 500 and generates a first voltage at the first node 551 according to the intensity of the magnetic field. In one embodiment, the magnetic field sensing circuit 560 includes a solenoid 561 for sensing a magnetic field generated by a wire carrying one of the alternating current sources in a region surrounding the central perforation. The indicator light 570 is coupled between the first node 551 and the ground potential, and emits light according to the intensity of the first voltage. In one embodiment, the indicator light 570 includes a resistor 572 and an LED indicator 571.
整流濾波電路580耦接於第一節點551以及第二節點552之間，對第一電壓進行整流及濾波以於第二節點552產生一第二電壓。於一實施例中，整流濾波電路580包括一二極體581以及一電容582。 二極體581耦接於第一節點551與第二節點552之間，對流經第一節點551與第二節點552之間的電流整流。電容582耦接於第二節點552與地電位之間。放大驅動電路590耦接至第二節點552，放大第二電壓以於第一輸出端530a及第二輸出端530b之間產生一輸出電流。於一實施例中，放大驅動電路590包括兩電晶體591及592及電阻593。電阻593耦接於電晶體591的基極與第二節點552之間。電晶體591具有一集極耦接至第一輸出端530a。電晶體592具有一基極耦接至電晶體591之射極，一集極耦接至第一輸出端530a，以及一射極耦接至第二輸出端530b。 The rectifying and filtering circuit 580 is coupled between the first node 551 and the second node 552 to rectify and filter the first voltage to generate a second voltage at the second node 552. In one embodiment, the rectifying and filtering circuit 580 includes a diode 581 and a capacitor 582. The diode 581 is coupled between the first node 551 and the second node 552 to rectify current flowing between the first node 551 and the second node 552. The capacitor 582 is coupled between the second node 552 and the ground potential. The amplification driving circuit 590 is coupled to the second node 552 to amplify the second voltage to generate an output current between the first output terminal 530a and the second output terminal 530b. In one embodiment, the amplification driver circuit 590 includes two transistors 591 and 592 and a resistor 593. The resistor 593 is coupled between the base of the transistor 591 and the second node 552. The transistor 591 has a collector coupled to the first output 530a. The transistor 592 has a base coupled to the emitter of the transistor 591, a collector coupled to the first output 530a, and an emitter coupled to the second output 530b.
第6A圖為依據本發明之交流電源感測裝置600與可程式化邏輯電路640連接之一實施例之示意圖。交流電源感測裝置600之第一輸出端630a耦接至可程式化邏輯電路640的NPN I/P端點，而交流電源感測裝置600之第二輸出端630b耦接至可程式化邏輯電路640的0V端點。第6B圖為依據本發明之交流電源感測裝置650與可程式化邏輯電路690連接之另一實施例之示意圖。交流電源感測裝置650之第一輸出端680a耦接至可程式化邏輯電路690的24V端點，而交流電源感測裝置650之第二輸出端680b耦接至可程式化邏輯電路690的PNP I/P端點。 FIG. 6A is a schematic diagram of an embodiment of the AC power sensing device 600 and the programmable logic circuit 640 in accordance with the present invention. The first output terminal 630a of the AC power sensing device 600 is coupled to the NPN I/P terminal of the programmable logic circuit 640, and the second output terminal 630b of the AC power sensing device 600 is coupled to the programmable logic circuit. 0V endpoint of 640. FIG. 6B is a schematic diagram of another embodiment of the AC power sensing device 650 and the programmable logic circuit 690 in accordance with the present invention. The first output 680a of the AC power sensing device 650 is coupled to the 24V end of the programmable logic circuit 690, and the second output 680b of the AC power sensing device 650 is coupled to the PNP of the programmable logic circuit 690. I/P endpoint.
第7圖為依據本發明之多個交流電源感測裝置710、720、…、7n0與可程式化邏輯電路700連接之一實施例之示意圖。多個交流電源感測裝置串連時，除了開頭與末端的交流電源感測裝置之外，位於中段的交流電源感測裝置的耦接方式均相同。以交流電源感測裝置720為例。交流電源感測裝置720的第二接腳720b耦接至前方的交流電源感測裝置710的第一接腳710a，交流電源感測裝置720的第四接腳720d耦接至前方的交流電源感測裝置710的第三接腳710c。交流電源感測裝置720的第一接腳720a耦接至後方的交流電源感測裝置730的第二接腳730b，交流電源感測裝置720的第三接腳720c耦接至後方的交流電源感測裝置730的第四接腳730d。 Figure 7 is a schematic illustration of one embodiment of a plurality of AC power sensing devices 710, 720, ..., 7n0 coupled to programmable logic circuit 700 in accordance with the present invention. When a plurality of AC power sensing devices are connected in series, the AC power sensing devices located in the middle section are coupled in the same manner except for the AC power sensing devices at the beginning and the end. Take the AC power sensing device 720 as an example. The second pin 720b of the AC power sensing device 720 is coupled to the first pin 710a of the AC power sensing device 710 in front, and the fourth pin 720d of the AC power sensing device 720 is coupled to the AC power sense in the front. The third pin 710c of the measuring device 710. The first pin 720a of the AC power sensing device 720 is coupled to the second pin 730b of the rear AC power sensing device 730, and the third pin 720c of the AC power sensing device 720 is coupled to the rear AC power sense. The fourth pin 730d of the measuring device 730.
另外，最末端的交流電源感測裝置7n0的第一接腳7n0a耦接至前方的交流電源感測裝置7(n-1)0的第三接腳7(n-1)0c，交流電源感測裝置7n0的第二接腳7n0b耦接至前方的交流電源感測裝置7(n-1)0的第一接腳7(n-1)0a。最前端的交流電源感測裝置710的第一接腳710a耦接至前方的可程式化邏輯電路700的com端點，交流電源感測裝置710的第四接腳710d耦接至可程式化邏輯電路700的NPN I/P端點。如此，多個交流電源感測裝置710、720、…、7n0的輸出電壓被加總跨接於開頭的交流電源感測裝置710的第二接腳710b與第四接腳710d兩端，因此可程式化邏輯電路700僅須耦接至開頭的交流電源感測裝置710的接腳710b與710d兩端便可偵測穿過多個交流電源感測裝置710、720、…、7n0的多個交流電源其中任一者是否有供電不正常或斷電的情形。 In addition, the first pin 7n0a of the most end AC power sensing device 7n0 is coupled to the third pin 7(n-1)0c of the front AC power sensing device 7(n-1)0, and the sense of AC power The second pin 7n0b of the measuring device 7n0 is coupled to the first pin 7(n-1)0a of the front AC power sensing device 7(n-1)0. The first pin 710a of the front-end AC power sensing device 710 is coupled to the com end of the front programmable logic circuit 700, and the fourth pin 710d of the AC power sensing device 710 is coupled to the programmable logic. The NPN I/P endpoint of circuit 700. In this way, the output voltages of the plurality of AC power sensing devices 710, 720, . . . , 7n0 are summed across the second pin 710b and the fourth pin 710d of the first AC power sensing device 710, so The programmable logic circuit 700 only needs to be coupled to the two ends of the first AC power sensing device 710, and can detect multiple AC power sources passing through the plurality of AC power sensing devices 710, 720, . . . , 7n0. Whether any of them has an abnormal power supply or a power failure.
本發明之交流電源感測裝置直接感應交流電所產生之磁 場，因此無侵入性，因此可以很方便地在既有的各種設備上加裝此一感測裝置，無需拆卸或破壞既有設備。此外，本發明之交流電源感測裝置利用磁場感應產生之電力點亮指示燈而無需外加電源。另外，本發明之交流電源感測裝置將感應之交流信號轉成數位化之ON/OFF電子信號，不受干擾並可長距離偵測。最後，本發明之多個交流電源感測裝置可相互串接以節省可程式化邏輯電路之輸入接點。 The AC power sensing device of the present invention directly senses the magnetic force generated by the alternating current The field is therefore non-invasive, so it is convenient to install this sensing device on any existing equipment without disassembling or destroying existing equipment. In addition, the AC power sensing device of the present invention utilizes the power generated by the magnetic field to illuminate the indicator light without the need for an external power source. In addition, the AC power sensing device of the present invention converts the sensed AC signal into a digitalized ON/OFF electronic signal that is undisturbed and can be detected over long distances. Finally, the plurality of AC power sensing devices of the present invention can be connected in series to each other to save input contacts of the programmable logic circuit.
500‧‧‧交流電源感測裝置 500‧‧‧AC power sensing device
560‧‧‧磁場感應電路 560‧‧‧Magnetic field sensing circuit
561‧‧‧螺線管 561‧‧‧ Solenoid
570‧‧‧指示燈 570‧‧‧ indicator light
571‧‧‧LED指示燈 571‧‧‧LED indicator
572‧‧‧電阻 572‧‧‧resistance
580‧‧‧整流濾波電路 580‧‧‧Rectifier filter circuit
581‧‧‧二極體 581‧‧‧ diode
582‧‧‧電容 582‧‧‧ Capacitance
590‧‧‧放大驅動電路 590‧‧‧Amplification drive circuit
591、592‧‧‧電晶體 591, 592‧‧‧Optoelectronics
593‧‧‧電阻 593‧‧‧resistance
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102126043A TWI493208B (en) | 2013-07-22 | 2013-07-22 | Alternate current detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102126043A TWI493208B (en) | 2013-07-22 | 2013-07-22 | Alternate current detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201504655A TW201504655A (en) | 2015-02-01 |
| TWI493208B true TWI493208B (en) | 2015-07-21 |
Family
ID=53018871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102126043A TWI493208B (en) | 2013-07-22 | 2013-07-22 | Alternate current detector |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI493208B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW498166B (en) * | 1999-09-10 | 2002-08-11 | Tdk Corp | Magnetic sensor apparatus and current sensor |
| TW536627B (en) * | 2000-07-24 | 2003-06-11 | Sentec Ltd | Current sensor |
| US20080246538A1 (en) * | 2007-04-06 | 2008-10-09 | Analog Devices, Inc. | Negative gm circuit, a filter and low noise amplifier including such a filter |
| TW201111805A (en) * | 2009-09-10 | 2011-04-01 | Semiconductor Components Ind | Method for detecting a current and compensating for an offset voltage and circuit |
| TW201113533A (en) * | 2009-01-14 | 2011-04-16 | Qualcomm Inc | Current sensing mechanism |
-
2013
- 2013-07-22 TW TW102126043A patent/TWI493208B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW498166B (en) * | 1999-09-10 | 2002-08-11 | Tdk Corp | Magnetic sensor apparatus and current sensor |
| TW536627B (en) * | 2000-07-24 | 2003-06-11 | Sentec Ltd | Current sensor |
| US20080246538A1 (en) * | 2007-04-06 | 2008-10-09 | Analog Devices, Inc. | Negative gm circuit, a filter and low noise amplifier including such a filter |
| TW201113533A (en) * | 2009-01-14 | 2011-04-16 | Qualcomm Inc | Current sensing mechanism |
| TW201111805A (en) * | 2009-09-10 | 2011-04-01 | Semiconductor Components Ind | Method for detecting a current and compensating for an offset voltage and circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201504655A (en) | 2015-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6305639B2 (en) | Current detector | |
| CN104266672B (en) | Direct current twin wire proximity transducer failure detector circuit | |
| CN107275157A (en) | A kind of relay movement part detection circuit and the relay with the circuit | |
| TWI583258B (en) | Fault detection apparatus and fault detection method | |
| CN102818992B (en) | Relay detection device | |
| JP2014219289A (en) | Electroscope | |
| TWI493208B (en) | Alternate current detector | |
| CN205752826U (en) | A kind of attaching plug detecting supply socket state | |
| KR101266262B1 (en) | Connector terminal block | |
| TWM474141U (en) | Alternate current detector | |
| CN101400202A (en) | Apparatus for dynamically and statically monitoring fault of multi-path car lamp | |
| CN103439670A (en) | Alternating current power supply sensing device | |
| TW201534947A (en) | Failure detection circuit and method for detecting a circuit using the same | |
| JP3192729U (en) | AC power detector | |
| JP4399313B2 (en) | Voltage detector | |
| TWI647670B (en) | Signal detecting device and illuminating device using same | |
| KR200381447Y1 (en) | Power supply display apparatus | |
| US20160003875A1 (en) | Alternating current detector | |
| TWI518347B (en) | Alternate current detector with automatically judging amount of element under test and monitoring | |
| KR102525554B1 (en) | power state display driver for switching mode power supply | |
| JP4412274B2 (en) | Overcurrent detection / notification device and tap | |
| CN103810078A (en) | Indicating lamp control circuit | |
| KR200252578Y1 (en) | Elctronics Earth Selecting Equipment | |
| CN104219857A (en) | A light source detection alarm circuit and a lamp | |
| JP2011192684A (en) | Led device and lighting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |