TWI381610B - Characteristics simulation circuit for charging devices - Google Patents

充電裝置之特徵模擬電路Characteristic analog circuit of charging device

本發明是有關於一種特徵模擬電路，且特別是有關於一種用以模擬一特徵電路之充電裝置之特徵模擬電路。The present invention relates to a feature analog circuit, and more particularly to a feature analog circuit for a charging device for simulating a feature circuit.

在手機進行充電時，由於各廠商所使用的充電裝置都具有自己所訂定的規格，並未有一個統一的規範，因此充電裝置，特別是藉由通用串列匯流排介面進行充電的充電裝置，將以接腳的阻抗來判斷是屬於何種規格的充電裝置。When charging a mobile phone, since the charging devices used by various manufacturers have their own specifications, there is no uniform specification, so the charging device, especially the charging device that is charged by the universal serial bus interface, The charging device of the specification is determined by the impedance of the pin.

然而這樣的設計方式，對常常須要測試充電裝置效能的人員來說，面對各種繁多的規格，必須要經常更換不同的充電裝置以得到測試的結果。就時間成本上來說，無疑地是相當耗時費力的。However, in such a design, for those who often need to test the performance of the charging device, in the face of various specifications, different charging devices must be frequently replaced to obtain the test results. In terms of time cost, it is undoubtedly quite time consuming and laborious.

因此，如何設計一個新的充電裝置之特徵模擬電路，藉由單一電路即可模擬各種不同規格的充電裝置，乃為此一業界亟待解決的問題。Therefore, how to design a new characteristic analog circuit of a charging device, a single circuit can simulate various charging devices of different specifications, which is an urgent problem to be solved in the industry.

因此本發明的目的就是在提供一種充電裝置之特徵模擬電路，用以模擬一充電裝置，包含：通用串列匯流排、第一開關、第二開關以及可變電阻。通用串列匯流排包含：電性連接至供應電源之供應電源接腳、電性連接至接地電位之接地電位接腳以及辨識接腳；可變電阻包含第一端 點、第二端點以及分壓端點，其中分壓端點電性連接至辨識接腳；第一開關電性連接至供應電源及第一端點；以及第二開關電性連接至接地電位及第二端點；其中當第一開關及第二開關其中之一係開路，另一係為導通，俾模擬該充電裝置。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a characteristic analog circuit for a charging device for simulating a charging device comprising: a universal serial bus, a first switch, a second switch, and a variable resistor. The universal serial bus includes: a power supply pin electrically connected to the power supply, a ground potential pin electrically connected to the ground potential, and an identification pin; the variable resistor includes the first end a second end point and a voltage dividing end point, wherein the voltage dividing end is electrically connected to the identification pin; the first switch is electrically connected to the power supply and the first end point; and the second switch is electrically connected to the ground potential And a second end point; wherein when one of the first switch and the second switch is open and the other is conductive, the charging device is simulated.

本發明之優點在於能夠利用辨識接腳及可變電阻，再藉由第一開關或第二開關其中之一的導通，即可模擬充電裝置的電路特性，而輕易地達到上述之目的。The invention has the advantages that the identification pin and the variable resistor can be utilized, and then the circuit characteristic of the charging device can be simulated by the conduction of one of the first switch or the second switch, and the above object can be easily achieved.

在參閱圖式及隨後描述之實施方式後，該技術領域具有通常知識者便可瞭解本發明之目的，以及本發明之技術手段及實施態樣。The object of the present invention, as well as the technical means and embodiments of the present invention, will be apparent to those skilled in the art in view of the appended claims.

請參照第1圖，係為本發明之第一實施例之充電裝置之特徵模擬電路1之示意圖。充電裝置之特徵模擬電路1用以模擬一充電裝置(未繪示)。充電裝置對於不同廠牌的手機來說，具有不同的規格。然而，想要對各種不同的充電裝置進行測試的人來說，不同的充電裝置規格無疑地增加了測試時不停更換充電裝置的時間，既耗時又費力。充電裝置之特徵模擬電路1即藉由單一電路即可模擬各種不同規格的充電裝置。Referring to Fig. 1, there is shown a schematic diagram of a characteristic analog circuit 1 of a charging device according to a first embodiment of the present invention. The characteristic analog circuit 1 of the charging device is used to simulate a charging device (not shown). The charging device has different specifications for different brands of mobile phones. However, for those who want to test a variety of different charging devices, different charging device specifications undoubtedly increase the time required to continuously replace the charging device during testing, which is time consuming and labor intensive. The characteristic analog circuit 1 of the charging device can simulate various charging devices of different specifications by a single circuit.

充電裝置之特徵模擬電路1包含：通用串列匯流排10、第一開關12、第二開關14以及可變電阻16。通用串列匯流排10包含：供應電源接腳100、接地電位接腳101、 辨識接腳102以及兩個差動資料接腳103。其中供應電源接腳100電性連接至供應電源Vss，接地電位接腳101電性連接至接地電位GND，而差動資料接腳103係在通用串列匯流排10連接至一主機(未繪示)，欲進行資料的傳輸時所使用。於本實施例中，實質上並未利用差動資料接腳103，因此差動資料接腳103並非必要之元件。於後續的圖示中，為求說明簡便，係不再繪示差動資料接腳103。可變電阻16包含第一端點160、第二端點161以及分壓端點162，其中分壓端點162電性連接至辨識接腳102。第一開關12電性連接至供應電源Vss及第一端點160，第二開關14電性連接至接地電位GND及第二端點161。The characteristic analog circuit 1 of the charging device includes a universal serial bus bar 10, a first switch 12, a second switch 14, and a variable resistor 16. The universal serial bus bar 10 includes: a power supply pin 100, a ground potential pin 101, The pin 102 and the two differential data pins 103 are identified. The power supply pin 100 is electrically connected to the power supply Vss, the ground potential pin 101 is electrically connected to the ground potential GND, and the differential data pin 103 is connected to the host in the universal serial bus bar 10 (not shown) ), used when transferring data. In the present embodiment, the differential data pin 103 is not substantially utilized, and thus the differential data pin 103 is not an essential component. In the following figures, for ease of explanation, the differential data pin 103 is not shown. The variable resistor 16 includes a first terminal end 160 , a second end point 161 , and a voltage dividing end point 162 , wherein the voltage dividing end point 162 is electrically connected to the identification pin 102 . The first switch 12 is electrically connected to the power supply Vss and the first terminal 160, and the second switch 14 is electrically connected to the ground potential GND and the second terminal 161.

不同規格之充電裝置，係主要以各充電裝置中的通用串列匯流排中的辨識接腳所電性連接之電阻及電位端，做為規格辨識之用。舉例來說，第2A圖所示為一實施例中，一第一廠牌之充電裝置電路2之電路圖。充電裝置電路2包含一通用串列匯流排20以及一電阻22。通用串列匯流排20包含供應電源接腳200、接地電位接腳201以及辨識接腳202。其中供應電源接腳200電性連接至供應電源Vss，接地電位接腳201電性連接至接地電位GND。電阻22電性連接於辨識接腳202及接地電位GND間。因此，本發明之充電裝置之特徵模擬電路1，將如第2B圖所示，將第一開關12形成開路之狀態，而第二開關14係關閉以導通，並將可變電阻16在第二端點161以及分壓端點162之電阻值設定為與電阻22相同之電阻值，即可模擬充電裝置電路2 之電路特性。Different types of charging devices are mainly used for identification of the resistance and potential terminals electrically connected to the identification pins in the universal serial bus bar in each charging device. For example, FIG. 2A is a circuit diagram of a charging device circuit 2 of a first brand in an embodiment. The charging device circuit 2 includes a universal serial bus bar 20 and a resistor 22. The universal serial bus bar 20 includes a supply power pin 200, a ground potential pin 201, and an identification pin 202. The power supply pin 200 is electrically connected to the power supply Vss, and the ground potential pin 201 is electrically connected to the ground potential GND. The resistor 22 is electrically connected between the identification pin 202 and the ground potential GND. Therefore, the characteristic analog circuit 1 of the charging device of the present invention will form the first switch 12 in an open state as shown in FIG. 2B, while the second switch 14 is turned off to be turned on, and the variable resistor 16 is in the second state. The resistance value of the terminal 161 and the voltage dividing terminal 162 is set to the same resistance value as the resistor 22, that is, the charging device circuit 2 can be simulated. Circuit characteristics.

於另一實施例中，如第3A圖所示，一第二廠牌之充電裝置電路3之電路圖，充電裝置電路3包含一通用串列匯流排30以及一電阻32。通用串列匯流排30包含供應電源接腳300、接地電位接腳301以及辨識接腳302。其中供應電源接腳300電性連接至供應電源Vss，接地電位接腳301電性連接至接地電位GND。電阻32電性連接於辨識接腳302及供應電源Vss間。因此，本發明之充電裝置之特徵模擬電路1，將如第3B圖所示，將第二開關14形成開路之狀態，而第一開關12係關閉以導通，並將可變電阻16在第一端點160以及分壓端點162之電阻值設定為與電阻32相同之電阻值，即可模擬充電裝置電路3之電路特性。In another embodiment, as shown in FIG. 3A, a circuit diagram of a charging device circuit 3 of a second brand, the charging device circuit 3 includes a universal serial bus bar 30 and a resistor 32. The universal serial bus bar 30 includes a supply power pin 300, a ground potential pin 301, and an identification pin 302. The power supply pin 300 is electrically connected to the power supply Vss, and the ground potential pin 301 is electrically connected to the ground potential GND. The resistor 32 is electrically connected between the identification pin 302 and the power supply Vss. Therefore, the characteristic analog circuit 1 of the charging device of the present invention will form the second switch 14 in an open state as shown in FIG. 3B, and the first switch 12 is turned off to be turned on, and the variable resistor 16 is first. The resistance value of the terminal 160 and the voltage dividing terminal 162 is set to the same resistance value as the resistor 32, that is, the circuit characteristics of the charging device circuit 3 can be simulated.

藉由上述充電裝置之特徵模擬電路1之設計，藉由可變電阻16、第一開關12以及第二開關14之搭配，即可對不同的充電裝置進行模擬，而可對供應電源Vss做調整，以進行模擬充電裝置耐壓之測試，或是調整其他電路部份做其他的模擬測試，為各種不同充電裝置進行模擬的過程達到高效率、省時省力之功效。By the design of the characteristic analog circuit 1 of the charging device, the combination of the variable resistor 16, the first switch 12 and the second switch 14 can simulate different charging devices, and can adjust the power supply Vss. In order to simulate the withstand voltage of the charging device, or to adjust other circuit parts for other simulation tests, the process of simulating various charging devices achieves high efficiency, time and effort.

雖然本發明已以一較佳實施例揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been described above in terms of a preferred embodiment, it is not intended to limit the invention, and it is obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

1‧‧‧充電裝置之特徵模擬電路1‧‧‧Charging device characteristic analog circuit

10‧‧‧通用串列匯流排10‧‧‧Common serial bus

100‧‧‧供應電源接腳100‧‧‧Supply power pin

101‧‧‧接地電位接腳101‧‧‧Ground potential pin

102‧‧‧辨識接腳102‧‧‧ID pin

103‧‧‧差動資料接腳103‧‧‧Differential data pin

12‧‧‧第一開關12‧‧‧First switch

14‧‧‧第二開關14‧‧‧Second switch

16‧‧‧可變電阻16‧‧‧Variable resistor

160‧‧‧第一端點160‧‧‧First endpoint

161‧‧‧第二端點161‧‧‧second endpoint

162‧‧‧分壓端點162‧‧ ‧pressure termination

2‧‧‧充電裝置電路2‧‧‧Charging device circuit

20‧‧‧通用串列匯流排20‧‧‧Common serial bus

200‧‧‧供應電源接腳200‧‧‧Supply power pin

201‧‧‧接地電位接腳201‧‧‧Ground potential pin

202‧‧‧辨識接腳202‧‧‧ID pin

22‧‧‧電阻22‧‧‧resistance

3‧‧‧充電裝置電路3‧‧‧Charging device circuit

30‧‧‧通用串列匯流排30‧‧‧Common serial bus

300‧‧‧供應電源接腳300‧‧‧Supply power pin

301‧‧‧接地電位接腳301‧‧‧Ground potential pin

302‧‧‧辨識接腳302‧‧‧ID pin

32‧‧‧電阻32‧‧‧resistance

為讓本發明之上述和其他目的、特徵、優點與實施例能更明顯易懂，所附圖式之詳細說明如下：第1圖係為本發明之第一實施例之充電裝置之特徵模擬電路之示意圖；第2A圖所示為一實施例中，一第一廠牌之充電裝置電路之電路圖；第2B圖係為本發明之第一實施例之充電裝置之特徵模擬電路對第一廠牌之充電裝置進行模擬之示意圖；第3A圖所示為一實施例中，一第二廠牌之充電裝置電路之電路圖；以及第3B圖係為本發明之第一實施例之充電裝置之特徵模擬電路對第二廠牌之充電裝置進行模擬之示意圖。The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood. 2A is a circuit diagram of a charging device circuit of a first brand in an embodiment; and FIG. 2B is a characteristic analog circuit of the charging device of the first embodiment of the present invention. FIG. 3A is a circuit diagram of a charging device circuit of a second brand in an embodiment; and FIG. 3B is a characteristic simulation of the charging device according to the first embodiment of the present invention; The circuit simulates the charging device of the second brand.

1‧‧‧充電裝置之特徵模擬電路1‧‧‧Charging device characteristic analog circuit

10‧‧‧通用串列匯流排10‧‧‧Common serial bus

100‧‧‧供應電源接腳100‧‧‧Supply power pin

101‧‧‧接地電位接腳101‧‧‧Ground potential pin

102‧‧‧辨識接腳102‧‧‧ID pin

103‧‧‧差動資料接腳103‧‧‧Differential data pin

12‧‧‧第一開關12‧‧‧First switch

14‧‧‧第二開關14‧‧‧Second switch

16‧‧‧可變電阻16‧‧‧Variable resistor

160‧‧‧第一端點160‧‧‧First endpoint

161‧‧‧第二端點161‧‧‧second endpoint

162‧‧‧分壓端點162‧‧ ‧pressure termination