TWI550995B - Eletronic device utilizing super capacitor to act as auxiliary power supply and charge method thereof - Google Patents
Eletronic device utilizing super capacitor to act as auxiliary power supply and charge method thereof Download PDFInfo
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本發明是有關於一種電子裝置，特別是有關於一種以超級電容為輔助電源之電子裝置及其充電方法。 The present invention relates to an electronic device, and more particularly to an electronic device using a super capacitor as an auxiliary power source and a charging method thereof.
近年來，智慧型手機與平板電腦已廣泛的融入我們的生活，幾乎每個人都擁有一到兩支手機，甚至還有些人同時擁有平板電腦。隨著人們越來越倚重智慧型手機與平板電腦，我們隨處可見到走在路上、搭乘大眾交通工具或是用餐休憩的人們，目不轉睛的盯著智慧型手機或平板電腦的螢幕進行操作，然，對於如此頻繁的使用量，使用者不可避免的面臨到一個問題，就是電池的電量。 In recent years, smart phones and tablets have been widely integrated into our lives. Almost everyone has one or two mobile phones, and some even have tablets. As people rely more and more on smart phones and tablets, we can see people walking on the road, taking public transportation or eating, and staring at the screen of a smart phone or tablet. For such frequent usage, the user is inevitably faced with a problem, that is, the battery power.
電池係為包含智慧型手機與平板電腦等電子裝置之核心動力來源，其電量大小決定使用者使用的時間，一般人大多僅備有一到兩個電池，亦有些電子裝置無法更換電池，因此對於無時無刻都在使用之狀態下，或於長途乘坐交通工具及位於沒有電源可供應充電的情況下，電量的消耗，將使得使用者時常面臨捉襟見肘的窘境。 The battery is the core power source for electronic devices such as smart phones and tablets. The size of the battery determines the time of the user. Most people usually only have one or two batteries, and some electronic devices cannot replace the battery. In the state of use, or in the case of long-distance rides and in the absence of power to supply charging, the consumption of electricity will make users often face a dilemma.
現下，電子裝置所使用的電池種類包括鎳鎘、鎳氫、鋰電池等，而一般使用者通常藉由外部電源進行充電，如：一般插座或通用串列匯流排(USB)。然，實際上藉由外部電源充電是無法將電池充至飽和，且可能發生電池過充之情事，進而導致縮短電池的使用壽命。另，對於使用者而言，充電的時間應越短越好，尤其是當因緊急事由需外出或其他原因而無法繼續等待充電時。而相對於電子裝置的廣泛使用，如何保養電池，延長電池的使用壽命也漸漸受到大眾重視。 Nowadays, the types of batteries used in electronic devices include nickel-cadmium, nickel-metal hydride, lithium batteries, etc., and the average user usually charges by an external power source, such as a general socket or a universal serial bus (USB). However, in fact, charging by an external power source cannot charge the battery to saturation, and battery overcharging may occur, resulting in shortened battery life. In addition, for the user, the charging time should be as short as possible, especially when it is necessary to go out for emergency reasons or for other reasons. Compared with the extensive use of electronic devices, how to maintain the battery and extend the service life of the battery has gradually gained the attention of the public.
承上所述，針對廣大的消費使用族群，應用於電子裝置之電池如何在有限時間內快速充電，及有效延長電池使用壽命，已成實際應用上之刻不容緩的議題。故，本發明之發明人思索並設計一種電子裝置，以針對現有技術之缺失加以改善，進而增進產業上之實施利用。 According to the above, for the vast consumer groups, how to charge the battery of the electronic device in a limited time, and effectively extend the battery life has become an urgent issue. Therefore, the inventors of the present invention have conceived and designed an electronic device to improve the lack of the prior art, thereby enhancing the industrial use and utilization.
有鑑於上述習知技藝之問題，本發明之目的就是在提供一種以超級電容為輔助電源之電子裝置，其包含：一電源供應模組，可連接於一外部電源，並供電於電子裝置，電源供應模組包含一電池及一超級電容，並執行包含一定電流充電及一定電壓充電的多階段充電；一檢測模組，可檢測電池之一電壓值及一電流值；以及一處理模組，可依據檢測模組檢測之電壓值及電流值來調整電源供應模組之充電模式；其中，當電源供應模組連接於外部電源時，處理模組則以外部電源對電池執行定電流充電，當處理模組藉由電流值及電壓值來判斷定電流充電已完成且外部電源與電源供應模組分離時，處理模組則以超級電容對電池執行定電壓充電，該電池則在該定電壓充電完成後進入恢復階段。 In view of the above problems in the prior art, the object of the present invention is to provide an electronic device using a super capacitor as an auxiliary power source, comprising: a power supply module, which can be connected to an external power source and supplied to the electronic device, the power source The supply module comprises a battery and a super capacitor, and performs multi-stage charging comprising a certain current charging and a certain voltage charging; a detecting module capable of detecting a voltage value and a current value of the battery; and a processing module Adjusting the charging mode of the power supply module according to the voltage value and the current value detected by the detecting module; wherein, when the power supply module is connected to the external power source, the processing module performs constant current charging on the battery by the external power source, when processing When the module determines that the constant current charging has been completed and the external power source is separated from the power supply module by the current value and the voltage value, the processing module performs a constant voltage charging on the battery with the super capacitor, and the battery is charged at the constant voltage. After entering the recovery phase.
較佳地，當電源供應模組連接於外部電源時，處理模組則可以外部電源對電池執行定電流充電，亦同時對超級電容進行充電，並以超級電容供電予電子裝置。 Preferably, when the power supply module is connected to the external power source, the processing module can perform a constant current charging on the battery by the external power source, and simultaneously charge the super capacitor and supply the power to the electronic device with the super capacitor.
較佳地，當電子裝置於使用中，電池之電壓值可為略低於電池之一最高電壓的一安全電壓，當電池之電壓值降至接近略低於安全電壓之一門檻電壓時，再由超級電容供電予電池充電，並將電壓值充至安全電壓。 Preferably, when the electronic device is in use, the voltage value of the battery may be a safe voltage slightly lower than the highest voltage of one of the batteries, and when the voltage value of the battery drops to a threshold voltage slightly lower than a safe voltage, The super capacitor is used to charge the battery and charge the voltage to a safe voltage.
較佳地，電池可為鋰電池，最高電壓實質上為4.2伏特(Volt)，門檻電壓實質上為4.05伏特，安全電壓實質上為小於4.2伏特且大於4.05伏特。 Preferably, the battery can be a lithium battery, the highest voltage is substantially 4.2 volts, the threshold voltage is substantially 4.05 volts, and the safe voltage is substantially less than 4.2 volts and greater than 4.05 volts.
較佳地，電子裝置更可包含一顯示單元，可電性連結於處理模組，當定電流充電已完成時，處理模組可以顯示單元發出一警示訊號，示意使用者將外部電源拔除分離。 Preferably, the electronic device further includes a display unit electrically connected to the processing module. When the constant current charging is completed, the processing module can send a warning signal to the display unit to indicate that the user removes the external power supply.
根據本發明之目的，更提出一種以超級電容為輔助電源之充電方法，包含下列步驟：藉由一電源供應模組連接於一外部電源，並供電於電子裝置，電源供應模組包含一電池及一超級電容，並執行包含一定電流充電及一定電壓充電的多階段充電；藉由一檢測模組檢測電池之一電壓值及一電流值；藉由一處理模組於電源供應模組連接於外部電源時，以外部電源對電池執行定電流充電；以及藉由處理模組以電流值及電壓值來判斷定電流充電已完成且外部電源與電源供應模組分離時，處理模組則以超級電容對電池執行定電壓充電，該電池則在該定電壓充電完成後進入恢復階段。 According to the purpose of the present invention, a charging method using a super capacitor as an auxiliary power source includes the following steps: connecting a power supply module to an external power source and supplying power to the electronic device, the power supply module includes a battery and a super capacitor, and performing multi-stage charging including a certain current charging and a certain voltage charging; detecting a voltage value and a current value of the battery by a detecting module; and connecting the external power supply module to the external power supply module When the power is supplied, the battery is subjected to constant current charging by the external power source; and when the processing module determines the current charging and the voltage is separated by the current value and the voltage value, and the external power source is separated from the power supply module, the processing module is a super capacitor. The battery is subjected to constant voltage charging, and the battery enters a recovery phase after the constant voltage charging is completed.
承上所述，依本發明之以超級電容為輔助電源之電子裝置及其充電方法，其可具有一或多個下述優點： According to the present invention, an electronic device using a super capacitor as an auxiliary power source and a charging method thereof can have one or more of the following advantages:
(1)此電子裝置可藉由在電子裝置與外部電源分離時，利用超級電容以使電池執行定電流充電，大幅減少利用外部電源充電之時間。 (1) The electronic device can greatly reduce the time for charging by the external power source by using the super capacitor to cause the battery to perform constant current charging when the electronic device is separated from the external power source.
(2)當電池於充電狀態時，可藉由超級電容作為輔助電源供電予電子裝置，故，電池可避免一邊充電一邊放電，延長電池使用壽命。 (2) When the battery is in the charging state, the super capacitor can be used as an auxiliary power source to supply power to the electronic device. Therefore, the battery can be discharged while charging and prolong the battery life.
(3)此電子裝置於與外部電源分離時，可維持電池於安全電壓，當電池低於安全電壓時，可藉由超級電容供電與電池進行充電，並充至該安全電壓範圍，藉此減少電池全過程充電次數(Full Cycle Charge)，延長電池使用壽命。 (3) When the electronic device is separated from the external power source, the battery can maintain the safe voltage. When the battery is lower than the safe voltage, the battery can be charged by the super capacitor and charged to the safe voltage range, thereby reducing Full Cycle Charge to extend battery life.
1‧‧‧電子裝置 1‧‧‧Electronic device
10‧‧‧外部電源 10‧‧‧External power supply
11‧‧‧電源供應裝置 11‧‧‧Power supply unit
111‧‧‧電池 111‧‧‧Battery
1111‧‧‧電壓值 1111‧‧‧Voltage value
1112‧‧‧電流值 1112‧‧‧ Current value
112‧‧‧超級電容 112‧‧‧Supercapacitors
12‧‧‧檢測模組 12‧‧‧Test module
13‧‧‧處理模組 13‧‧‧Processing module
14‧‧‧顯示單元 14‧‧‧Display unit
141‧‧‧警示訊號 141‧‧‧ warning signal
S1至S9‧‧‧開關 S1 to S9‧‧‧ switch
S41至S44‧‧‧步驟 S41 to S44‧‧‧ steps
第1圖 係為本發明之以超級電容為輔助電源之電子裝置之第一實施例之方塊圖。 Fig. 1 is a block diagram showing a first embodiment of an electronic device using a super capacitor as an auxiliary power source of the present invention.
第2圖 係為本發明之以超級電容為輔助電源之電子裝置之充電週期示意圖。 Fig. 2 is a schematic diagram showing the charging cycle of the electronic device with the super capacitor as the auxiliary power source of the present invention.
第3圖 係為本發明之以超級電容為輔助電源之電子裝置之第二實施例之方塊圖。 Figure 3 is a block diagram showing a second embodiment of the electronic device with the super capacitor as the auxiliary power source of the present invention.
第4圖 係為本發明之以超級電容為輔助電源之電子裝置之充電方法之流程圖。 Fig. 4 is a flow chart showing the charging method of the electronic device with the super capacitor as the auxiliary power source of the present invention.
第5圖 係為本發明之以超級電容為輔助電源之電子裝置之電子裝置之電路示意圖。 Fig. 5 is a circuit diagram showing the electronic device of the electronic device with the super capacitor as the auxiliary power source of the present invention.
以下將參照相關圖式，說明依本發明之以超級電容為輔助電源之電子裝置及其充電方法之實施例，為使便於理解，下述實施例中之相同元件係以相同之符號標示來說明。 Hereinafter, an embodiment of an electronic device using a super capacitor as an auxiliary power source and a charging method thereof according to the present invention will be described with reference to the related drawings. For ease of understanding, the same components in the following embodiments are denoted by the same reference numerals. .
請參閱第1圖，其係為本發明之以超級電容為輔助電源之電子裝置之第一實施例之方塊圖。如第1圖所示，電子裝置1可包含：一電源供應模組11，可連接於一外部電源10，該外部電源10可包含插座電源及USB，電源供應模組11可供電於電子裝置1，其包含一電池111及一超級電容112，並執行包含一定電流充電及一定電壓充電的多階段充電；一檢測模組12，可檢測電池111之一電壓值1111及一電流值1112；以及一處理模組13，可依據檢測模組12檢測之電壓值1111及電流值1112來調整電源供應模組11之充電模式。電子裝置1可為手機、筆記型電腦、平板電腦、可攜式多媒體播放器或各種醫療用設備等。 Please refer to FIG. 1 , which is a block diagram of a first embodiment of an electronic device with a super capacitor as an auxiliary power source according to the present invention. As shown in FIG. 1 , the electronic device 1 can include: a power supply module 11 , which can be connected to an external power source 10 , the external power source 10 can include a socket power supply and a USB, and the power supply module 11 can be powered by the electronic device 1 The battery module 111 includes a battery 111 and a super capacitor 112, and performs multi-stage charging including a certain current charging and a certain voltage charging; a detecting module 12 detects a voltage value 1111 of the battery 111 and a current value 1112; The processing module 13 can adjust the charging mode of the power supply module 11 according to the voltage value 1111 and the current value 1112 detected by the detecting module 12. The electronic device 1 can be a mobile phone, a notebook computer, a tablet computer, a portable multimedia player, or various medical devices.
請配合參閱第2圖，其係為本發明之以超級電容為輔助電源之電子裝置之充電週期示意圖。如第2圖所示，其中，電池係以鋰電池為例，當電源供應模組連接於外部電源時，處理模組則以外部電源對電池執行定電流充電(即為充電週期之第一階段)，並以超級電容供電予電子裝置，以避免因電池一邊充電一邊供電，導致電池的壽命因此降低。而當處理模組藉由電流值及電壓值來判斷定電流充電已完成且外部電源與電源供應模組分離時，處理模組則以超級電容對電池執行定電壓充電(即為充電週期之第二階段)，在定電壓充電完成後，電池則進入充電完成的恢復階段(即第三階段及第四階段)。 Please refer to FIG. 2, which is a schematic diagram of the charging cycle of the electronic device with the super capacitor as the auxiliary power source of the present invention. As shown in Fig. 2, the battery is a lithium battery. When the power supply module is connected to an external power supply, the processing module performs constant current charging on the battery with an external power supply (ie, the first stage of the charging cycle). ), and power the electronic device with a super capacitor to avoid power supply due to charging of the battery, resulting in a decrease in battery life. When the processing module determines that the constant current charging has been completed by the current value and the voltage value and the external power source is separated from the power supply module, the processing module performs a constant voltage charging on the battery with the super capacitor (ie, the charging cycle) In the second stage, after the constant voltage charging is completed, the battery enters the recovery phase of the completion of charging (ie, the third stage and the fourth stage).
其中，本發明使用超級電容作為輔助電源，而超級電容(Super Capacitor)係具備快速充放電，容許間歇充放電，非恆定電流充電及無污染的特 質。然而，電子產品所常用的鎳鎘、鎳氫、鋰電池之容量雖較超級電容大，但必須如第2圖所示之階段充電。以鋰電池為例，其充電過程較複雜且可容許之充電的次數(平均約500次)遠小於超級電容(平均約有50萬次)。 Among them, the present invention uses a super capacitor as an auxiliary power source, and the super capacitor (Super Capacitor) has a fast charge and discharge, allows intermittent charging and discharging, non-constant current charging and no pollution. quality. However, the capacity of nickel-cadmium, nickel-metal hydride, and lithium batteries commonly used in electronic products is larger than that of super-capacitors, but must be charged as shown in Figure 2. Taking a lithium battery as an example, the charging process is complicated and the number of times that can be tolerated (about 500 times on average) is much smaller than that of a super capacitor (an average of about 500,000 times).
值得注意的是，為延長該電池之使用壽命，電池之全循環充電(Full Cycle Charge)次數應儘量減少，且應避免使電池長期維持在最高電壓，以鋰電池為例，鋰電池之最高電壓為4.2伏特(Volt)，使用者就應避免鋰電池之電壓長期維持在4.2伏特，才可避免電池之使用壽命減少。然而，習知技藝之電子裝置卻缺乏一個有效的機制來解決上述的問題。 It is worth noting that in order to prolong the service life of the battery, the number of full cycle charges of the battery should be minimized, and the battery should be kept at the highest voltage for a long time. Taking a lithium battery as an example, the highest voltage of the lithium battery is 4.2 Volt, the user should avoid the lithium battery voltage maintained at 4.2 volts for a long time to avoid the battery life reduction. However, electronic devices of the prior art lack an effective mechanism to solve the above problems.
承上所述，本發明提出之電子裝置更可以進一步在當電子裝置與USB或插座電源分離時(即為該電子裝置未處於定電流充電狀態，或為該電子裝置為使用中之狀態時)電池之電壓值可為略低於電池之一最高電壓的一安全電壓，當電池因使用或待機狀態之電量損耗，導致電壓值降至接近略低於安全電壓之一門檻電壓時，便可由超級電容作為電池充電之電源，即可進行定電壓充電，將電壓值充至安全電壓。以鋰電池為例，鋰電池之最高電壓為4.2伏特，門檻電壓為4.05，而安全電壓為略低於4.2伏特且大於4.05伏特。 As described above, the electronic device of the present invention can further be used when the electronic device is separated from the USB or socket power supply (that is, when the electronic device is not in a constant current charging state, or when the electronic device is in use) The voltage value of the battery can be a safe voltage slightly lower than the highest voltage of one of the batteries. When the battery is depleted due to the use or standby state, the voltage value drops to a threshold voltage slightly lower than the safe voltage. As a power source for battery charging, the capacitor can be charged at a constant voltage to charge the voltage to a safe voltage. Taking a lithium battery as an example, the maximum voltage of the lithium battery is 4.2 volts, the threshold voltage is 4.05, and the safe voltage is slightly lower than 4.2 volts and greater than 4.05 volts.
因此，本發明所提出之電子裝置可以有效地避免電池長期維持在最高電壓，且減少了電池的全循環充電次數，除此之外，在電子裝置與USB或插座電源分離時，電池是由超級電容來進行充電，而電子裝置是由超級電容來供電，因此，電池在供電時不會進行充電的動作，其壽命可以有效地延長。 Therefore, the electronic device proposed by the present invention can effectively prevent the battery from being maintained at the highest voltage for a long time and reduce the number of full-cycle charging of the battery. In addition, when the electronic device is separated from the USB or the socket power supply, the battery is super The capacitor is used for charging, and the electronic device is powered by the super capacitor. Therefore, the battery does not perform charging when the power is supplied, and the life can be effectively extended.
請參閱第3圖，其係為本發明之以超級電容為輔助電源之電子裝置之第二實施例之方塊圖。如第3圖所示，本發明之電子裝置1除包含電源供應模組11、檢測模組12及處理模組13外，更可包含一顯示單元14，該顯示單元14 可電性連結於處理模組13，當定電流充電已完成時，處理模組13將以顯示單元14發出一警示訊號141，當使用者看到該警示訊號141示意時，便可知道可將該外部電源10拔除，與該電子裝置1分離。藉此，可避免電池111有過充情況，而導致減少電池111使用壽命狀況發生。 Please refer to FIG. 3, which is a block diagram of a second embodiment of an electronic device with a super capacitor as an auxiliary power source according to the present invention. As shown in FIG. 3 , the electronic device 1 of the present invention includes a power supply module 11 , a detection module 12 , and a processing module 13 , and further includes a display unit 14 . The processing module 13 can be electrically connected to the processing module 13. When the constant current charging is completed, the processing module 13 sends a warning signal 141 to the display unit 14. When the user sees the warning signal 141, the user can know that The external power source 10 is removed and separated from the electronic device 1. Thereby, the battery 111 can be prevented from being overcharged, resulting in a reduction in the life of the battery 111.
請參閱第4圖，其係為本發明之以超級電容為輔助電源之電子裝置之充電方法之流程圖。如第4圖所示，本發明之以超級電容為輔助電源之充電方法，包含下列步驟： Please refer to FIG. 4 , which is a flow chart of a charging method of an electronic device with a super capacitor as an auxiliary power source according to the present invention. As shown in FIG. 4, the charging method of the present invention using a super capacitor as an auxiliary power source includes the following steps:
在步驟S41中，藉由一電源供應模組連接於一外部電源，並供電於電子裝置，電源供應模組包含一電池及一超級電容，並執行包含一定電流充電及一定電壓充電的多階段充電。 In step S41, a power supply module is connected to an external power source and powered by the electronic device. The power supply module includes a battery and a super capacitor, and performs multi-stage charging including a certain current charging and a certain voltage charging. .
在步驟S42中，藉由一檢測模組檢測電池之一電壓值及一電流值。 In step S42, a voltage value and a current value of the battery are detected by a detecting module.
在步驟S43中，藉由一處理模組於電源供應模組連接於外部電源時，以外部電源對電池執行定電流充電。 In step S43, when the power supply module is connected to the external power source by a processing module, the battery is subjected to constant current charging by the external power source.
在步驟S44中，藉由處理模組以電流值及電壓值來判斷定電流充電已完成且外部電源與電源供應模組分離時，處理模組則以超級電容對電池執行定電壓充電，該電池則在該定電壓充電完成後進入恢復階段。 In step S44, when the processing module determines that the constant current charging has been completed and the external power source is separated from the power supply module by the current value and the voltage value, the processing module performs a constant voltage charging on the battery with the super capacitor, the battery. Then enter the recovery phase after the constant voltage charging is completed.
承上所述，藉由上述步驟，該電子裝置可藉由外部電源執行一定電流充電，再藉由超級電容取代外部電源，執行一定電壓充電，因定電壓充電之時間通常較定電流時間久，故，藉由本發明，可以將定電流充電之電流合理提高，進而縮短定電流充電時間，而後，利用超級電容執行定電壓充電。然，由於該超級電容係內建於該電子裝置之電源供應模組中，故可於使用者攜帶或 使用過程中，持續執行充電，進而大大縮短整體充電所需等待之時間，並給予使用者十分大的便利性。 According to the above steps, the electronic device can perform a certain current charging by an external power source, and then replace the external power source with a super capacitor to perform a certain voltage charging. The charging time of the constant voltage is usually longer than the constant current time. Therefore, according to the present invention, the current of the constant current charging can be reasonably increased, thereby shortening the constant current charging time, and then the constant voltage charging is performed using the super capacitor. However, since the super capacitor is built in the power supply module of the electronic device, it can be carried by the user or During the use, the charging is continuously performed, thereby greatly shortening the waiting time for the overall charging, and giving the user great convenience.
請參閱第2圖及第5圖，第5圖係為本發明之以超級電容為輔助電源之電子裝置之電路示意圖。本發明之可分為三種應用，其電路控制如下： Please refer to FIG. 2 and FIG. 5 . FIG. 5 is a schematic circuit diagram of an electronic device with a super capacitor as an auxiliary power source according to the present invention. The invention can be divided into three applications, the circuit of which is controlled as follows:
(1)由USB或插座電源等外部電源進行第一階段定電流充電，再由超級電容完成其它階段，其步驟如下： (1) The first stage constant current charging is performed by an external power source such as a USB or a socket power supply, and then the super capacitor is used to complete other stages, and the steps are as follows:
(a)藉由檢測模組檢測電池之參數Vm、Vh、Ih、IL及Ioff，以決定電池在何階段中。 (a) The battery module parameters Vm, Vh, Ih, IL and Ioff are detected by the detection module to determine the stage of the battery.
(b)若檢測結果之參數係於第一階段，處理模組則將開關S1、S4、S2導通，並將開關S3、S5、S6、S7、S8、S9斷開。此時係為藉由USB或插座電源分別對電池及超級電容充電。 (b) If the parameter of the detection result is in the first stage, the processing module turns on the switches S1, S4, and S2, and turns off the switches S3, S5, S6, S7, S8, and S9. At this time, the battery and the super capacitor are respectively charged by the USB or the socket power supply.
(c)當電池電壓接近Vh且充電電流接近Ih時，即可將USB或插座電源拔除與電子裝置分離，處理模組則將開關S9導通，並將開關S1、S2、S3、S4、S5、S6、S7、S8斷開。此時係結束第一階段。 (c) When the battery voltage is close to Vh and the charging current is close to Ih, the USB or socket power supply can be removed and separated from the electronic device, and the processing module turns on the switch S9, and the switches S1, S2, S3, S4, S5, S6, S7, and S8 are disconnected. At this point, the first phase ends.
(d)當超級電容接近電池電壓時，則超級電容經由充電泵對電池充電，處理模組則將開關S3、S6、S4導通，並將開關S1、S2、S5、S7、S8、S9斷開。此時係為藉由超級電容對電池充電，即為第二階段。 (d) When the supercapacitor approaches the battery voltage, the supercapacitor charges the battery via the charge pump, and the processing module turns on the switches S3, S6, and S4, and disconnects the switches S1, S2, S5, S7, S8, and S9. . In this case, the battery is charged by the super capacitor, which is the second stage.
(e)當充電電流低於Ioff時即完成充電，處理模組則將開關S1、S2、S3、S4、S5、S6、S7、S8、S9均斷開。此時電池進入充電完成後的恢復階段，即第三階段及第四階段。 (e) When the charging current is lower than Ioff, the charging is completed, and the processing module disconnects the switches S1, S2, S3, S4, S5, S6, S7, S8, and S9. At this point, the battery enters the recovery phase after the completion of charging, that is, the third phase and the fourth phase.
(2)當電池於充電狀態時，以超級電容作為輔助電源供電予電子裝置之負載，避免電池同時充放電，延長其使用壽命，其步驟如下： (2) When the battery is in the charging state, the super capacitor is used as the auxiliary power source to supply the load to the electronic device, so as to avoid the battery charging and discharging at the same time and prolong its service life, the steps are as follows:
(a)藉由檢測模組檢測電池之參數Vm、Vh、Ih、IL及Ioff，以決定電池在何階段中。 (a) The battery module parameters Vm, Vh, Ih, IL and Ioff are detected by the detection module to determine the stage of the battery.
(b)若電池在充電中並與電子裝置之負載連接，則改由超級電容供電予負載，處理模組則將開關S1、S2、S4、S7導通，並將開關S3、S5、S6、S8、S9斷開。此時USB或插座電源同時對電池及超級電容充電。 (b) If the battery is charging and connected to the load of the electronic device, the super capacitor is used to supply power to the load, and the processing module turns on the switches S1, S2, S4, and S7, and switches S3, S5, S6, and S8. , S9 is disconnected. At this time, the USB or outlet power supply charges the battery and the super capacitor at the same time.
(c)當超級電容電壓降到接近電壓調整器所須電壓時，則超級電容經由充電泵對負載供電，處理模組則將開關S1、S2、S3、S4、S8導通，並將開關S5、S6、S7、S9斷開。 (c) When the supercapacitor voltage drops to the voltage required by the voltage regulator, the supercapacitor supplies power to the load via the charge pump, and the processing module turns on the switches S1, S2, S3, S4, S8, and switches S5, S6, S7, and S9 are disconnected.
(3)當電子裝置之負載在待機狀態時，將電池之電壓維持於安全電壓，並減少電池全過程充電(Full Cycle Charge，如第2圖所示)次數，以延長電池壽命。以鋰電池為例，鋰電池若長期維持在最高電壓4.2V或全過程充電次數太多時，會影響其使用壽命。本發明係將電池電壓維持於略低於之一安全電壓(Vx)，當電池電壓降到接近低於安全電壓(Vx)之門檻值4.05V時，再由超級電容對電池執行定電壓充電，並充電至略低於4.2V之安全電壓(Vx)，其步驟如下： (3) When the load of the electronic device is in the standby state, the voltage of the battery is maintained at a safe voltage, and the number of full cycle charging (as shown in FIG. 2) is reduced to prolong the battery life. Taking a lithium battery as an example, if the lithium battery is maintained at a maximum voltage of 4.2V for a long period of time or if the number of times of charging is too large in the whole process, the service life of the lithium battery may be affected. The present invention maintains the battery voltage slightly below a safe voltage (Vx). When the battery voltage drops to a threshold value close to 4.05V below the safe voltage (Vx), the super capacitor charges the battery. And charge to a safe voltage (Vx) slightly lower than 4.2V, the steps are as follows:
a)藉由檢測模組檢測電池之參數Vm、Vh、Ih、IL及Ioff，以決定電池在何階段中，並確認電子裝置之負載在待機狀態。 a) The detection module detects the parameters Vm, Vh, Ih, IL and Ioff of the battery to determine the stage of the battery and confirm that the load of the electronic device is in the standby state.
b)當電池電壓介於Vx與4.05V之間時，處理模組則將開關S5導通，並將開關S1、S2、S4、S8、S3、S6、S7、S9斷開。此時由電池供電於負載。 b) When the battery voltage is between Vx and 4.05V, the processing module turns on the switch S5 and disconnects the switches S1, S2, S4, S8, S3, S6, S7, S9. At this point the battery is powered by the load.
c)當電池電壓接近4.05V時，處理模組則將開關S5、S9導通，並將開關S1、S2、S4、S8、S3、S6、S7斷開。此時由超級電容對電池執行定電壓充電。 c) When the battery voltage is close to 4.05V, the processing module turns on the switches S5, S9 and disconnects the switches S1, S2, S4, S8, S3, S6, S7. At this time, the battery is subjected to constant voltage charging by the super capacitor.
d)當電池電壓達到Vx時，而開關S5導通，開關S1、S2、S4、S8、S3、S6、S7、S9斷開。 d) When the battery voltage reaches Vx, and the switch S5 is turned on, the switches S1, S2, S4, S8, S3, S6, S7, S9 are turned off.
以上所述僅為舉例性，而非為限制性者。任何未脫離本發明之精神與範疇，而對其進行之等效修改或變更，均應包含於後附之申請專利範圍中。 The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.
1‧‧‧電子裝置 1‧‧‧Electronic device
10‧‧‧外部電源 10‧‧‧External power supply
11‧‧‧電源供應裝置 11‧‧‧Power supply unit
111‧‧‧電池 111‧‧‧Battery
1111‧‧‧電壓值 1111‧‧‧Voltage value
1112‧‧‧電流值 1112‧‧‧ Current value
112‧‧‧超級電容 112‧‧‧Supercapacitors
12‧‧‧檢測模組 12‧‧‧Test module
13‧‧‧處理模組 13‧‧‧Processing module
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| TW101114818A TWI550995B (en) | 2012-04-26 | 2012-04-26 | Eletronic device utilizing super capacitor to act as auxiliary power supply and charge method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080238356A1 (en) * | 2007-03-26 | 2008-10-02 | Batson David C | Portable energy storage and charging device |
| TWM391226U (en) * | 2010-06-09 | 2010-10-21 | Pilot Battery Co Ltd | Electric power storage system |
| TW201214919A (en) * | 2010-09-24 | 2012-04-01 | Lite On Clean Energy Technology Corp | Hybrid battery module and battery management method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080238356A1 (en) * | 2007-03-26 | 2008-10-02 | Batson David C | Portable energy storage and charging device |
| TWM391226U (en) * | 2010-06-09 | 2010-10-21 | Pilot Battery Co Ltd | Electric power storage system |
| TW201214919A (en) * | 2010-09-24 | 2012-04-01 | Lite On Clean Energy Technology Corp | Hybrid battery module and battery management method |
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