TW201419932A - Dimming driving method and device for single-chip light emitting diode - Google Patents
Dimming driving method and device for single-chip light emitting diode Download PDFInfo
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本發明係有關於一種單晶片發光二極體調光驅動方法與裝置，尤其是指一種於施行使用上不需使用微處理器，不僅能有效降低其製作成本，且於使用上不會有誤動作當機之情況發生，而在其整體施行使用上更增實用功效特性之單晶片發光二極體調光驅動方法與裝置創新設計者。The invention relates to a single-chip light-emitting diode dimming driving method and device, in particular to a utility model which does not need to use a microprocessor, can not only effectively reduce the manufacturing cost thereof, but also has no malfunction in use. An innovative designer of a single-chip light-emitting diode dimming driving method and device that occurs when the machine is in use and has more practical and practical features in its overall implementation.
按，發光二極體〔ＬＥＤ〕是一種節約能源且符合環保的綠色照明光源，且發光二極體具有高亮度、壽命長、體積小、重量輕、反應速度快及環保等優勢，使得於使用上污染較少、控制電路簡單、發光效率逐漸提高的發光二極體取代傳統照明已是可預期的趨勢，不論是顯示產業、照明設備、汽車產業皆對發光二極體有許多應用，也由於發光二極體的應用領域越來越寬廣，帶動發光二極體驅動ＩＣ的成長，以發光二極體驅動ＩＣ市場來看，規模將逐年攀升，由２００８年９億美元成長至２０１３年２９億美元，年複合成長率為２６﹒４％，具龐大商機。According to the light-emitting diode (LED), it is an energy-saving and environmentally-friendly green lighting source, and the light-emitting diode has the advantages of high brightness, long life, small size, light weight, fast reaction speed and environmental protection. Light-emitting diodes with less pollution, simple control circuit and gradually improved luminous efficiency have been expected to replace traditional lighting. Both display industry, lighting equipment and automobile industry have many applications for light-emitting diodes. The application field of LEDs is becoming wider and wider, driving the growth of LEDs. In terms of LED market, the scale will increase year by year, from US$900 million in 2008 to 2.9 billion in 2013. The US dollar has a compound annual growth rate of 26.4%, which has huge business opportunities.
目前發光二極體燈有調光型及非調光型，調光型售值高，技術門檻亦高，但可依使用者須求，調整適當亮度及色温，可節省更多能源，發揮發光二極體燈特有功能；其中，就一般常見之發光二極體調光驅動電路而言，請參閱第五圖現有之電路方塊圖所示，該調光驅動電路（５）主要係設有微處理器（５１），該微處理器（５１）連接有調光開關（５２），以令微處理器（５１）受調光開關（５２）控制作動，而該微處理器（５１）亦連接有脈波寬度調變〔Ｐｕｌｓｅ Ｗｉｄｔｈ Ｍｏｄｕｌａｔｉｏｎ〕產生器（５３），該脈波寬度調變產生器（５３）則連接有高功率晶體（５４），再於高功率晶體（５４）連接有至少一發光二極體（５５），使得使用者於使用上係藉由調光開關（５２）輸入控制訊號至微處理器（５１），以令微處理器（５１）控制脈波寬度調變產生器（５３）之導通週期產生ＰＷＭ訊號，ＰＷＭ訊號再經由高功率晶體（５４）驅動發光二極體（５５）進行調光。At present, the light-emitting diode lamp has dimming type and non-dimming type. The dimming type has high sales value and high technical threshold. However, according to the user's request, the appropriate brightness and color temperature can be adjusted to save more energy and play the light. The diode lamp has a special function; among them, as for the common LED dimming driver circuit, please refer to the circuit diagram of the existing circuit in the fifth figure, the dimming driver circuit (5) is mainly provided with micro A processor (51) is connected to the microprocessor (51) with a dimmer switch (52) for controlling the microprocessor (51) to be actuated by the dimmer switch (52), and the microprocessor (51) is also connected There is a pulse width modulation generator (53), the pulse width modulation generator (53) is connected with a high power crystal (54), and at least one is connected to the high power crystal (54). The light emitting diode (55) allows the user to input a control signal to the microprocessor (51) through the dimmer switch (52) to make the microprocessor ( 1) controls the pulse width modulation generator (53) generates the ON period of PWM signals, PWM signal in turn drives the light-emitting diode (55) via a high power transistor (54) for dimming.
然而，上述調光驅動電路雖可達到對發光二極體進行調光之預期功效，但也在實際施行使用上發現，其在電路設計上係以微處理器進行控制，而一般微處理器價格普遍較高，不僅造成整體電路製作成本無法有效降低，且微處理器使用上亦會有誤動作、當機的問題產生，致令其在整體電路設計上仍存在有改進之空間。However, although the above dimming driving circuit can achieve the expected effect of dimming the LED, it is also found in practical use, which is controlled by a microprocessor in circuit design, and the general microprocessor price Generally speaking, not only does the overall circuit manufacturing cost not be effectively reduced, but also the use of the microprocessor may cause malfunctions and crashes, resulting in room for improvement in the overall circuit design.
緣是，發明人秉持多年該相關行業之豐富設計開發及實際製作經驗，針對現有之結構再予以研究改良，提供一種單晶片發光二極體調光驅動方法與裝置，以期達到更佳實用價值性之目的者。The reason is that the inventor has been rich in design and development and practical production experience of the relevant industry for many years, and has researched and improved the existing structure to provide a single-chip light-emitting diode dimming driving method and device, in order to achieve better practical value. The purpose of the person.
本發明之主要目的在於提供一種單晶片發光二極體調光驅動方法與裝置，其主要係於施行使用上不需使用微處理器，不僅能有效降低其製作成本，且於使用上不會有誤動作當機之情況發生，而在其整體施行使用上更增實用功效特性者。The main object of the present invention is to provide a single-chip light-emitting diode dimming driving method and device, which is mainly used in the implementation without using a microprocessor, which can not only effectively reduce the manufacturing cost, but also has no use in use. The occurrence of a malfunction occurs, and the utility model is more effective in its overall implementation.
本發明單晶片發光二極體調光驅動方法之主要目的與功效，係由以下具體技術手段所達成：The main purpose and effect of the single-wafer LED dimming driving method of the present invention are achieved by the following specific technical means:
其主要係利用上／下數計數器之輸出值改變驅動電流大小，以對發光二極體進行亮度調整。The main purpose is to change the driving current by using the output value of the up/down counter to adjust the brightness of the LED.
本發明之單晶片發光二極體調光驅動方法的較佳實施例，其中，該上／下數計數器之輸出值係控制脈波寬度調變〔ＰＷＭ〕之週期，以利用脈波寬度改變驅動電流大小，當上／下數計數器值愈大，脈波寬度愈寬，驅動電流愈大；當上／下數計數器值愈小，脈波寬度愈窄，驅動電流愈小，而對發光二極體進行亮度調整。A preferred embodiment of the single-chip light-emitting diode dimming driving method of the present invention, wherein the output value of the up/down counter is controlled by a pulse width modulation (PWM) period to drive with a pulse width change The magnitude of the current, when the up/down counter value is larger, the wider the pulse width, the larger the drive current; the smaller the upper/lower counter value, the narrower the pulse width, the smaller the drive current, and the light-emitting diode The body is adjusted for brightness.
本發明之單晶片發光二極體調光驅動方法的較佳實施例，其中，該上／下數計數器之輸出值係控制電流源陣列開關，以利用電流源陣列開關導通數量改變驅動電流大小，當上／下數計數器輸出值愈大，電流源陣列開關愈多導通，驅動電流愈大，而對發光二極體進行亮度調整。A preferred embodiment of the single-chip light-emitting diode dimming driving method of the present invention, wherein the output value of the up/down counter is controlled by the current source array switch to change the driving current by the number of current source array switches. When the output value of the up/down counter is larger, the more the current source array switch is turned on, the larger the driving current is, and the brightness of the light emitting diode is adjusted.
本發明單晶片發光二極體調光驅動裝置之主要目的與功效，係由以下具體技術手段所達成：The main purpose and effect of the single-chip light-emitting diode dimming driving device of the present invention are achieved by the following specific technical means:
設有調光驅動電路，該調光驅動電路於分別連接有增亮開關及減暗開關，且於控制器連接有上／下數計數器，該上／下數計數器則連接有比較器，另設有一振盪器，該振盪器連接有除頻器，該除頻器則與上／下數計數器連接，並於振盪器亦連接有計數器，該計數器同樣與比較器連接，再於比較器連接有高功率晶體，該高功率晶體則連接有至少一發光二極體。a dimming driving circuit is provided, and the dimming driving circuit is respectively connected with a brightness increasing switch and a dimming switch, and an up/down counter is connected to the controller, and the up/down counter is connected with a comparator, and the other is provided. There is an oscillator connected to the frequency divider, the frequency divider is connected to the up/down counter, and a counter is also connected to the oscillator. The counter is also connected to the comparator, and the comparator is connected high. A power crystal, the high power crystal is connected to at least one light emitting diode.
本發明單晶片發光二極體調光驅動裝置之主要目的與功效，係由以下具體技術手段所達成：The main purpose and effect of the single-chip light-emitting diode dimming driving device of the present invention are achieved by the following specific technical means:
設有調光驅動電路，該調光驅動電路於開關連接有振盪器，該振盪器連接有計數器，該計數器與比較器連接，同時於該振盪器亦連接有除頻器，該除頻器則與上／下數計數器連接，該上／下數計數器同樣與比較器連接，再於比較器連接有高功率晶體，該高功率晶體則連接有至少一發光二極體。The dimming driving circuit is provided with an oscillator connected to the switch, the oscillator is connected with a counter, the counter is connected with the comparator, and a frequency divider is also connected to the oscillator, and the frequency divider is connected Connected to the up/down counter, the up/down counter is also connected to the comparator, and a high power crystal is connected to the comparator, and the high power crystal is connected with at least one light emitting diode.
本發明之單晶片發光二極體調光驅動裝置的較佳實施例，其中，振盪器產生Ｍ級信號頻率，經除頻器產生低頻控制信號，每週期時間從０﹒２至３秒，低頻信號輸入至上／下數計數器脈波輸入端，先以較低頻率計數，一段時間後，加速計數。A preferred embodiment of the single-chip light-emitting diode dimming driving device of the present invention, wherein the oscillator generates an M-level signal frequency, and the frequency-dividing device generates a low-frequency control signal, each cycle time is from 0.2 to 3 seconds, and the low frequency The signal is input to the pulse input of the up/down counter, first counting at a lower frequency, and after a period of time, accelerating the counting.
本發明單晶片發光二極體調光驅動裝置之主要目的與功效，係由以下具體技術手段所達成：The main purpose and effect of the single-chip light-emitting diode dimming driving device of the present invention are achieved by the following specific technical means:
設有調光驅動電路，該調光驅動電路於控制器分別連接有增亮開關及減暗開關，且於控制器連接有上／下數計數器，該上／下數計數器則連接有電流源陣列開關，另設有一振盪器，該振盪器連接有除頻器，該除頻器則與上／下數計數器連接，再於電流源陣列開關連接有高功率晶體，該高功率晶體則連接有至少一發光二極體。The dimming driving circuit is provided with a brightness-increasing switch and a dimming switch respectively connected to the controller, and an up/down counter is connected to the controller, and the up/down counter is connected with the current source array The switch further has an oscillator connected to the frequency divider, the frequency divider is connected to the up/down counter, and the high current crystal is connected to the current source array switch, and the high power crystal is connected with at least A light-emitting diode.
本發明單晶片發光二極體調光驅動裝置之主要目的與功效，係由以下具體技術手段所達成：The main purpose and effect of the single-chip light-emitting diode dimming driving device of the present invention are achieved by the following specific technical means:
設有調光驅動電路，該調光驅動電路主要係設有開關，該開關連接有振盪信號整形單元，該振盪信號整形單元連接有除頻器，該除頻器則與上／下數計數器連接，該上／下數計數器則與電流源陣列開關連接，再於電流源陣列開關連接有高功率晶體，該高功率晶體則連接有至少一發光二極體。A dimming driving circuit is provided, the dimming driving circuit is mainly provided with a switch, the switch is connected with an oscillating signal shaping unit, and the oscillating signal shaping unit is connected with a frequency divider, and the frequency divider is connected with the up/down counter The up/down counter is connected to the current source array switch, and the current source array switch is connected with a high power crystal, and the high power crystal is connected with at least one light emitting diode.
為令本發明所運用之技術內容、發明目的及其達成之功效有更完整且清楚的揭露，茲於下詳細說明之，並請一併參閱所揭之圖式及圖號：For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, it is explained in detail below, and please refer to the drawings and drawings:
首先，請參閱第一圖本發明之調光驅動電路方塊圖所示，該調光驅動電路（１）主要係設有控制器（１１），該控制器（１１）分別連接有增亮開關（１１１）及減暗開關（１１２），且於控制器（１１）連接有上／下數計數器（１２），該上／下數計數器（１２）則連接有比較器（１３），另設有一振盪器（１４），該振盪器（１４）連接有除頻器（１５），該除頻器（１５）則與上／下數計數器（１２）連接，並於振盪器（１４）亦連接有計數器（１６），該計數器（１６）同樣與比較器（１３）連接，再於比較器（１３）連接有高功率晶體（１７），該高功率晶體（１７）則連接有至少一發光二極體（１８）。First, referring to the first block diagram of the dimming driving circuit of the present invention, the dimming driving circuit (1) is mainly provided with a controller (11), and the controller (11) is respectively connected with a brightening switch ( 111) and a dimming switch (112), and an up/down counter (12) is connected to the controller (11), and the up/down counter (12) is connected with a comparator (13), and an oscillation is further provided. (14), the oscillator (14) is connected with a frequency divider (15), the frequency divider (15) is connected to the up/down counter (12), and a counter is also connected to the oscillator (14). (16), the counter (16) is also connected to the comparator (13), and a high power crystal (17) is connected to the comparator (13), and the high power crystal (17) is connected with at least one light emitting diode. (18).
如此一來，使得本發明於操作使用上，其係令使用者利用增亮開關（１１１）或減暗開關（１１２）控制輸入至控制器（１１），產生一上下數控制輸出信號及一停止輸出信號控制上／下數計數器（１２），當增亮開關（１１１）與減暗開關（１１２）輸入皆低或皆高位準時，此時控制器（１１）輸出停止信號產生高位準，令上／下數計數器（１２）停止計數，當減暗開關（１１２）輸出為高位準時，上下數控制信號輸出低位準，作下數計數；當增亮開關（１１１）輸出為高位準，上下數控制信號輸出高位準，作上數計數。In this way, the invention is used in operation, which causes the user to control the input to the controller (11) by using the brightening switch (111) or the dimming switch (112) to generate a top and bottom control output signal and a stop. The output signal controls the up/down counter (12). When the input of the brightening switch (111) and the dimming switch (112) are both low or high, the controller (11) outputs a stop signal to generate a high level. / Down counter (12) stops counting. When the dimming switch (112) output is high, the upper and lower control signals output low level, and count down; when the brightening switch (111) output is high, the upper and lower numbers are controlled. The signal output is high and counted up.
振盪器（１４）產生Ｍ級信號頻率，經除頻器（１５）產生低頻控制信號，每週期時間從０﹒２至３秒，低頻信號輸入至上／下數計數器（１２）脈波輸入端，增亮開關（１１１）或減暗開關（１１２）按下時，先以較低頻率計數，一段時間後，加速計數，最快每一階發光二極體（１８）亮度以０﹒２秒跳動一次，最慢每一階發光二極體（１８）亮度以３秒跳動。The oscillator (14) generates an M-level signal frequency, and a low-frequency control signal is generated by the frequency divider (15), the cycle time is from 0.2 to 3 seconds, and the low-frequency signal is input to the up/down counter (12) pulse input terminal. When the brightening switch (111) or the dimming switch (112) is pressed, it is first counted at a lower frequency, and after a period of time, the counting is accelerated, and the brightness of each of the light-emitting diodes (18) is beaten at 0.2 seconds. Once, the slowest brightness of each step of the light-emitting diode (18) beats for 3 seconds.
而比較器（１３）不僅與上／下數計數器（１２）連接且亦與計數器（１６）連接，使得改變高功率晶體（１７）驅動電流係利用上／下數計數器（１２）之輸出值控制脈波寬度調變〔ＰＷＭ〕之週期，當上／下數計數器（１２）值愈大，脈波寬度愈寬，驅動電流愈大，當上／下數計數器（１２）值愈小，脈波寬度愈窄，驅動電流愈小，而該計數器（１６）則由零開始計數每一脈波計數值加ｌ，直到最大值，下一週期再從零開始計數，當計數器（１６）值小於上／下數計數器（１２）值，比較器（１３）輸出為高準位，上／下數計數器（１２）值愈大，比較器（１３）輸出脈波寬度愈寬；藉此，即能達到控制發光二極體（１８）亮度之功效。The comparator (13) is not only connected to the up/down counter (12) but also to the counter (16), so that changing the high power crystal (17) drive current is controlled by the output value of the up/down counter (12). Pulse width modulation [PWM] period, when the upper/lower counter (12) value is larger, the pulse width is wider, the drive current is larger, and the upper/lower counter (12) value is smaller, the pulse wave The narrower the width, the smaller the drive current, and the counter (16) counts each pulse count value from zero to the maximum value, and the next cycle starts counting from zero, when the counter (16) value is less than / Lower counter (12) value, comparator (13) output is high level, the upper/lower counter (12) value is larger, the comparator (13) output pulse width is wider; The effect of controlling the brightness of the light-emitting diode (18).
請參閱第二圖本發明之第一實施例調光驅動電路方塊圖所示，該調光驅動電路（２）主要係設有控制器（２１），該控制器（２１）分別連接有增亮開關（２１１）及減暗開關（２１２），且於控制器（２１）連接有上／下數計數器（２２），該上／下數計數器（２２）則連接有電流源陣列開關（２３），另設有一振盪器（２４），該振盪器（２４）連接有除頻器（２５），該除頻器（２５）則與上／下數計數器（２２）連接，再於電流源陣列開關（２３）連接有高功率晶體（２６），該高功率晶體（２６）則連接有至少一發光二極體（２７）；使得其欲改變高功率晶體（２６）驅動發光二極體（２７）電流值時，係利用上／下數計數器（２２）之輸出值控制電流源陣列開關（２３），上／下數計數器（２２）輸出值愈大，電流源陣列開關（２３）愈多導通，驅動電流愈大，高功率晶體（２６）驅動電流由電流源陣列開關（２３）產生映射電流，驅動電流為定電流不受發光二極體（２７）負載改變，上／下數計數器（２２）時脈〔ｃｌｏｃｋ〕由振盪器（２４）產生，除頻器（２５）則決定調控發光二極體（２７）時間，除頻小時，上／下數計數器（２２）頻率變快，操控發光二極體（２７）時間變短；藉此，亦能達到控制發光二極體（２７）亮度之功效。Referring to the second embodiment of the present invention, the dimming driver circuit (2) is mainly provided with a controller (21), and the controller (21) is respectively connected with brightness enhancement. a switch (211) and a dimming switch (212), and an up/down counter (22) is connected to the controller (21), and the up/down counter (22) is connected to the current source array switch (23). There is also an oscillator (24) connected to the frequency divider (25), the frequency divider (25) is connected to the up/down counter (22), and then to the current source array switch ( 23) connected with a high power crystal (26), the high power crystal (26) is connected with at least one light emitting diode (27); such that it wants to change the high power crystal (26) to drive the light emitting diode (27) current When the value is used, the current source array switch (23) is controlled by the output value of the up/down counter (22), and the output value of the up/down counter (22) is larger, and the current source array switch ( 3) The more conduction, the higher the drive current, the high-power crystal (26) drive current is generated by the current source array switch (23), the drive current is constant current is not affected by the light-emitting diode (27) load, on / The down counter (22) clock is generated by the oscillator (24), and the frequency divider (25) determines the time for adjusting the LED (27). The frequency is divided, the up/down counter (22) frequency As the speed becomes faster, the time for controlling the light-emitting diode (27) becomes shorter; thereby, the effect of controlling the brightness of the light-emitting diode (27) can also be achieved.
請參閱第三圖本發明之第二實施例調光驅動電路方塊圖所示，該調光驅動電路（３）主要係設有開關（３１），該開關（３１）連接有振盪器（３２），該振盪器（３２）連接有計數器（３３），該計數器（３３）與比較器（３４）連接，同時於該振盪器（３２）亦連接有除頻器（３５），該除頻器（３５）則與上／下數計數器（３６）連接，該上／下數計數器（３６）同樣與比較器（３４）連接，再於比較器（３４）連接有高功率晶體（３７），該高功率晶體（３７）則連接有至少一發光二極體（３８）；使得於操作使用時，振盪器（３２）輸出經除頻器（３５）產生低頻控制信號，低頻信號輸入至上／下數計數器（３６）脈波輸入端，當開關（３１）按下時，振盪器（３２）啟動，上／下數計數器（３６）開始上數，工作週期變寬，發光二極體（３８）變亮，此時開關（３１）關閉，發光二極體（３８）停留在目前亮度，開關（３１）再按下時，發光二極體（３８）再逐漸變亮，直到上／下數計數器（３６）最大值即停止，此時發光二極體（３８）最亮，開關（３１）關閉再設按下時，上／下數計數器（３６）開始下數，工作週期變窄，發光二極體（３８）變暗，此時開關（３１）關閉，發光二極體（３８）則停留在目前亮度，開關（３１）再按下時，發光二極體（３８）再逐漸變暗，直到上／下數計數器（３６）為零值即停止，此時發光二極體（３８）最暗；開關（３１）關閉再按下時，上／下數計數器（３６）又開始上數，速度先以較低頻率計數，一段時間後，加速計數，最快每一階發光二極體（３８）亮度以０﹒２秒跳動一次，最慢每一階發光二極體（３８）亮度以３秒跳動；藉此，亦能達到控制發光二極體（３８）亮度之功效。Referring to the third block diagram of the second embodiment of the present invention, the dimming driving circuit (3) is mainly provided with a switch (31), and the switch (31) is connected with an oscillator (32). The oscillator (32) is connected to a counter (33), the counter (33) is connected to the comparator (34), and a frequency divider (35) is also connected to the oscillator (32), the frequency divider ( 35) is connected to the up/down counter (36), the up/down counter (36) is also connected to the comparator (34), and the comparator (34) is connected with a high power crystal (37), which is high. The power crystal (37) is connected to at least one light emitting diode (38); when operating, the oscillator (32) output generates a low frequency control signal via the frequency divider (35), and the low frequency signal is input to the up/down counter. (36) Pulse input terminal, when the switch (31) is pressed, the oscillator (32) is started, the up/down counter (36) starts to count, the working period is widened, and the light is illuminated. The polar body (38) is brightened, at which time the switch (31) is turned off, the light-emitting diode (38) stays at the current brightness, and when the switch (31) is pressed again, the light-emitting diode (38) gradually becomes brighter until The maximum value of the up/down counter (36) is stopped. At this time, the LED (38) is the brightest, and the switch (31) is turned off and then pressed. The up/down counter (36) starts to count down and the duty cycle. When narrowed, the light-emitting diode (38) becomes dark, at which time the switch (31) is turned off, the light-emitting diode (38) stays at the current brightness, and when the switch (31) is pressed again, the light-emitting diode (38) Gradually dim, until the up/down counter (36) stops at zero, then the LED (38) is the darkest; when the switch (31) is turned off and then pressed, the up/down counter (36) Start counting again, the speed is first counted at a lower frequency. After a period of time, the speed is counted. The fastest brightness of each order LED (38) beats once every 0.2 seconds, and the slowest each order LED (38) brightness in 3 seconds Moving; whereby, can also achieve the effect of controlling brightness light-emitting diode (38).
請參閱第四圖本發明之第三實施例調光驅動電路方塊圖所示，該調光驅動電路（４）主要係設有開關（４１），該開關連接有振盪信號整形單元（４２），該振盪信號整形單元（４２）連接有除頻器（４３），該除頻器（４３）則與上／下數計數器（４４）連接，該上／下數計數器（４４）則與電流源陣列開關（４５）連接，再於電流源陣列開關（４５）連接有高功率晶體（４６），該高功率晶體（４６）則連接有至少一發光二極體（４７）；使得於操作使用時，係由開關（４１）產生６０Ｈｚ电源頻率感測信號，且經振盪信號整形單元（４２）整形產生方波信號，方波信號經除頻器（４３）除頻作為上／下數計數器（４４）時脈輸入，上／下數計數器（４４）輸出值送至電流源陣列開關（４５），利用上／下數計數器（４４）輸出值決定電流源陣列開關（４５）驅動電流，當開關（４１）按下時，上／下數計數器（４４）先開始上數，驅動電流增加，發光二極體（４７）變亮，此時開關（４１）關閉，發光二極體（４７）停留在目前亮度，開關（４１）再按下時，發光二極體（４７）再逐漸變亮，直到上／下數計數器（４４）最大值即停止，此時發光二極體（４７）最亮，開關（４１）關閉再設按下時，上／下數計數器（４４）開始下數，驅動電流減少，發光二極體（４７）變暗，此時開關（４１）關閉，發光二極體（４７）則停留在目前亮度，開關（４１）再按下時，發光二極體（４７）再逐漸變暗，直到上／下數計數器（４４）為零值即停止，此時發光二極體（４７）最暗，開關（４１）關閉再開啟時，上／下數計數器（４４）又開始上數；藉此，亦能達到控制發光二極體（４１）亮度之功效。Referring to the fourth block diagram of the dimming drive circuit of the third embodiment of the present invention, the dimming drive circuit (4) is mainly provided with a switch (41), and the switch is connected with an oscillating signal shaping unit (42). The oscillating signal shaping unit (42) is connected to a frequency divider (43), and the frequency divider (43) is connected to an up/down counter (44), and the up/down counter (44) is connected to the current source array. The switch (45) is connected, and the current source array switch (45) is connected with a high power crystal (46), and the high power crystal (46) is connected with at least one light emitting diode (47); The 60Hz power frequency sensing signal is generated by the switch (41), and is shaped by the oscillating signal shaping unit (42) to generate a square wave signal, and the square wave signal is divided by the frequency divider (43) as an up/down counter (44). Clock input, the up/down counter (44) output value is sent to the current source array switch (45), and the output value is determined by the up/down counter (44) output value. The source array switch (45) drives the current. When the switch (41) is pressed, the up/down counter (44) starts to count first, the drive current increases, and the light emitting diode (47) becomes bright. At this time, the switch (41) ) off, the light-emitting diode (47) stays at the current brightness, and when the switch (41) is pressed again, the light-emitting diode (47) gradually becomes brighter until the maximum value of the up/down counter (44) stops. At this time, the light-emitting diode (47) is the brightest, and when the switch (41) is turned off and then pressed, the up/down counter (44) starts to count down, the drive current is reduced, and the light-emitting diode (47) is darkened. When the switch (41) is turned off, the light-emitting diode (47) stays at the current brightness, and when the switch (41) is pressed again, the light-emitting diode (47) is gradually darkened until the up/down counter (44) When the value is zero, it stops. At this time, the light-emitting diode (47) is the darkest, and when the switch (41) is turned off and on, the up/down counter (44) starts counting again; thereby, the control light-emitting diode can also be achieved. body( 1) the effectiveness of brightness.
藉由以上所述，本發明結構之組成與使用實施說明可知，本發明與現有結構相較之下，本發明主要係於施行使用上不需使用微處理器，不僅能有效降低其製作成本，且於使用上不會有誤動作當機之情況發生，而在其整體施行使用上更增實用功效特性者。Based on the above description, the composition and use of the structure of the present invention show that the present invention is mainly used in the implementation without using a microprocessor, which can effectively reduce the manufacturing cost. Moreover, there will be no accidental operation when the machine is used, and the utility model is more effective in its overall implementation.
然而前述之實施例或圖式並非限定本發明之產品結構或使用方式，任何所屬技術領域中具有通常知識者之適當變化或修飾，皆應視為不脫離本發明之專利範疇。However, the above-described embodiments or drawings are not intended to limit the structure or the use of the present invention, and any suitable variations or modifications of the invention will be apparent to those skilled in the art.
綜上所述，本發明實施例確能達到所預期之使用功效，又其所揭露之具體構造，不僅未曾見諸於同類產品中，亦未曾公開於申請前，誠已完全符合專利法之規定與要求，爰依法提出發明專利之申請，懇請惠予審查，並賜准專利，則實感德便。In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the provisions of the Patent Law. And the request, the application for the invention of a patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.
(1)．．．調光驅動電路(1). . . Dimming drive circuit
(11)．．．控制器(11). . . Controller
(111)．．．增亮開關(111). . . Brightening switch
(112)．．．減暗開關(112). . . Dimming switch
(12)．．．上/下數計數器(12). . . Up/down counter
(13)．．．比較器(13). . . Comparators
(14)．．．振盪器(14). . . Oscillator
(15)．．．除頻器(15). . . Frequency divider
(16)．．．計數器(16). . . counter
(17)．．．高功率晶體(17). . . High power crystal
(18)．．．發光二極體(18). . . Light-emitting diode
(2)．．．調光驅動電路(2). . . Dimming drive circuit
(21)．．．控制器(twenty one). . . Controller
(211)．．．增亮開關(211). . . Brightening switch
(212)．．．減暗開關(212). . . Dimming switch
(22)．．．上/下數計數器(twenty two). . . Up/down counter
(23)．．．電流源陣列開關(twenty three). . . Current source array switch
(24)．．．振盪器(twenty four). . . Oscillator
(25)．．．除頻器(25). . . Frequency divider
(26)．．．高功率晶體(26). . . High power crystal
(27)．．．發光二極體(27). . . Light-emitting diode
(3)．．．調光驅動電路(3). . . Dimming drive circuit
(31)．．．開關(31). . . switch
(32)．．．振盪器(32). . . Oscillator
(33)．．．計數器(33). . . counter
(34)．．．比較器(34). . . Comparators
(35)．．．除頻器(35). . . Frequency divider
(36)．．．上/下數計數器(36). . . Up/down counter
(37)．．．高功率晶體(37). . . High power crystal
(38)．．．發光二極體(38). . . Light-emitting diode
(4)．．．調光驅動電路(4). . . Dimming drive circuit
(41)．．．開關(41). . . switch
(42)．．．振盪信號整形單元(42). . . Oscillating signal shaping unit
(43)．．．除頻器(43). . . Frequency divider
(44)．．．上/下數計數器(44). . . Up/down counter
(45)．．．電流源陣列開關(45). . . Current source array switch
(46)．．．高功率晶體(46). . . High power crystal
(47)．．．發光二極體(47). . . Light-emitting diode
(5)．．．調光驅動電路(5). . . Dimming drive circuit
(51)．．．微處理器(51). . . microprocessor
(52)．．．調光開關(52). . . Dimming switch
(53)．．．脈波寬度調變產生器(53). . . Pulse width modulation generator
(54)．．．高功率晶體(54). . . High power crystal
(55)．．．發光二極體(55). . . Light-emitting diode
第一圖：本發明之調光驅動電路方塊圖First: block diagram of the dimming driver circuit of the present invention
第二圖：本發明之第一實施例調光驅動電路方塊圖Second figure: block diagram of the dimming driving circuit of the first embodiment of the present invention
第三圖：本發明之第二實施例調光驅動電路方塊圖Third drawing: block diagram of the dimming driving circuit of the second embodiment of the present invention
第四圖：本發明之第三實施例調光驅動電路方塊圖Fourth figure: block diagram of a dimming driving circuit of a third embodiment of the present invention
第五圖：現有之電路方塊圖Figure 5: Existing circuit block diagram
(1)．．．調光驅動電路(1). . . Dimming drive circuit
(11)．．．控制器(11). . . Controller
(111)．．．增亮開關(111). . . Brightening switch
(112)．．．減暗開關(112). . . Dimming switch
(12)．．．上/下數計數器(12). . . Up/down counter
(13)．．．比較器(13). . . Comparators
(14)．．．振盪器(14). . . Oscillator
(15)．．．除頻器(15). . . Frequency divider
(16)．．．計數器(16). . . counter
(17)．．．高功率晶體(17). . . High power crystal
(18)．．．發光二極體(18). . . Light-emitting diode
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| JP2009135138A (en) * | 2007-11-28 | 2009-06-18 | Texas Instr Japan Ltd | Led driving circuit |
| TWI396465B (en) * | 2008-08-14 | 2013-05-11 | Nat Chi Nan Cuniversity | Light color mixing control system for light emitting diodes |
| TW201220946A (en) * | 2010-11-10 | 2012-05-16 | Inergy Technology Inc | Methods of adjusting brightness and rotational speed |
| JP5616768B2 (en) * | 2010-12-08 | 2014-10-29 | ローム株式会社 | LIGHT EMITTING ELEMENT DRIVE CIRCUIT, LIGHT EMITTING DEVICE USING THE SAME, AND ELECTRONIC DEVICE |
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2012
- 2012-11-01 TW TW101140506A patent/TWI478619B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| TWI478619B (en) | 2015-03-21 |
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