Claims (18)
一種發光二極體(LED)驅動裝置，包括：一電壓調整模組，用以接收一輸入信號而產生一保持電壓信號，該電壓調整模組包括一第一二極體，該第一二極體之一陰極端透過一電容耦接至接地，該第一二極體之一陽極端接收一參考信號，該保持電壓信號於該電容及該第一二極體之該陰極端之間被讀取，該輸入信號經過一開關電路輸入於該第一二極體之該陽極端；一電源信號同步電路，用以藉由接收一全波整流信號而產生一同步計數信號；一可程式化邏輯陣列，用以接收該同步計數信號，並輸出一邏輯狀態；一數位類比信號轉換電路，用以接收該邏輯狀態與該參考信號，而重建一類比電壓信號；一模式檢測電路，用以根據該輸入信號以及該保持電壓信號產生一模式資訊；一可程式化陣列調光器，用以接收並儲存該模式資訊並據以產生一計數信號；以及一輸出模組電路，用以接收該類比電壓信號、該計數信號以及該保持電壓信號，而輸出一控制信號，該控制信號決定一LED之一發光亮度。A light-emitting diode (LED) driving device includes: a voltage adjusting module for receiving an input signal to generate a holding voltage signal, the voltage adjusting module comprising a first diode, the first diode One of the cathode ends is coupled to the ground through a capacitor, and one of the anode ends of the first diode receives a reference signal, and the hold voltage signal is read between the capacitor and the cathode end of the first diode. The input signal is input to the anode terminal of the first diode through a switching circuit; a power signal synchronization circuit is configured to generate a synchronous counting signal by receiving a full-wave rectified signal; a programmable logic array Receiving the synchronous count signal and outputting a logic state; a digital analog signal conversion circuit for receiving the logic state and the reference signal to reconstruct an analog voltage signal; and a mode detecting circuit for receiving the signal according to the input The signal and the hold voltage signal generate a mode information; a programmable array dimmer for receiving and storing the mode information and generating a count signal; and A circuit module, for receiving the signal voltage class than the count signal and the held voltage signal, and outputs a control signal, the control signal determines a light emission brightness of one LED.
如申請專利範圍第1項之LED驅動裝置，其中該電壓調整模組還包含一帶隙參考電路(Band-Gap Reference Circuit)，該帶隙參考電路產生該參
考信號。The LED driving device of claim 1, wherein the voltage adjusting module further comprises a band-gap reference circuit, wherein the band gap reference circuit generates the parameter
Test signal.
如申請專利範圍第1項之LED驅動裝置，其中該可程式化邏輯陣列儲存一同步功因值，該同步功因值決定該數位類比信號轉換電路輸出之類比電壓信號之一波形，該波形決定該LED驅動裝置之一功率因數之大小。The LED driving device of claim 1, wherein the programmable logic array stores a synchronous power factor value, wherein the synchronous power factor determines a waveform of an analog voltage signal output by the digital analog signal converting circuit, and the waveform determines The power factor of one of the LED driving devices.
如申請專利範圍第1項之LED驅動裝置，其中該計數信號具有一週期，該計數信號於該週期中由至少一該基礎脈波組成，該至少一基礎脈波之基礎脈寬之和與該週期之比值決定該發光亮度。The LED driving device of claim 1, wherein the counting signal has a period, wherein the counting signal is composed of at least one of the basic pulse waves in the period, and a sum of a base pulse width of the at least one basic pulse wave and the The ratio of the periods determines the brightness of the illumination.
如申請專利範圍第1項之LED驅動裝置，其中該開關電路包含一金氧半場效電晶體，該金氧半場效電晶體之閘極耦接至一比較器，該比較器之第一輸入端耦接至該參考源並接收該參考信號，該比較器之第二輸入端耦接至一第一分壓電路，該分壓電路耦接至該第一二極體之該陽極端。The LED driving device of claim 1, wherein the switching circuit comprises a MOS field effect transistor, the gate of the MOS field transistor is coupled to a comparator, and the first input of the comparator The second input terminal of the comparator is coupled to a first voltage dividing circuit, and the voltage dividing circuit is coupled to the anode terminal of the first diode.
如申請專利範圍第1項之LED驅動裝置，更包含一信號轉換模組，該信號轉換模組包含一第二分壓電路，該第二分壓電路包括一串連電阻串，該串連電阻串具有一第一端與一第二端，該第一端接收該輸入信號，且該第二端耦接至接地，該串連電組串具有複數個節點，每一該節點分別耦接至一比較器，每一該比較器至少其中之一接收該參考信號並據以產生一比較結果。The LED driving device of claim 1 further includes a signal conversion module, the signal conversion module comprising a second voltage dividing circuit, the second voltage dividing circuit comprising a series of resistor strings, the string The resistor string has a first end and a second end, the first end receives the input signal, and the second end is coupled to the ground, the series string has a plurality of nodes, and each of the nodes is coupled Connected to a comparator, at least one of each of the comparators receives the reference signal and accordingly generates a comparison result.
如申請專利範圍第1項之LED驅動裝置，其中該模式檢測電路包含一正反器、一第一去雜訊電路以及一模式選擇器，該正反器接收該比較結果並產生一狀態信號，該狀態信號經由該第一去雜訊電路除去雜訊後輸出至該模式選擇器，該模式選擇器依據該二位元信號產生該模式資訊。The LED driving device of claim 1, wherein the mode detecting circuit comprises a flip-flop, a first de-noising circuit and a mode selector, the flip-flop receiving the comparison result and generating a status signal, The status signal is sent to the mode selector after the noise is removed by the first de-noising circuit, and the mode selector generates the mode information according to the two-bit signal.
如申請專利範圍第1項之LED驅動裝置，其中該全波整流信號為一弦波
信號輸入至一全波整流器之相應輸出結果。The LED driving device of claim 1, wherein the full-wave rectified signal is a sine wave
The signal is input to the corresponding output of a full-wave rectifier.
如申請專利範圍第1項之LED驅動裝置，更包括一功率補償電路，該功率補償電路接收該全波整流信號，當該全波整流信號之電壓峯值過大時，該功率補償電路保持該全波整流信號之線電壓最大值並輸出至該輸出模組電路。The LED driving device of claim 1, further comprising a power compensation circuit, wherein the power compensation circuit receives the full-wave rectified signal, and the power compensation circuit maintains the full-wave when the voltage peak of the full-wave rectified signal is excessively large The maximum line voltage of the rectified signal is output to the output module circuit.
如申請專利範圍第9項之LED驅動裝置，其中該電源信號同步電路包括：一施密特觸發器，接收一全波整流信號，並產生一相應輸出；一第二去雜訊電路，接收該相應輸出，並去除該相應輸出之雜訊而產生一初步同步信號；一零點/峰值計算電路，接收該初步同步信號，並藉由該初步同步信號產生一零點同步信號以及一峰值信號；以及一計數器，接收該零點同步信號以及該峰值信號，並藉由該零點同步信號以及該峰值信號產生該同步計數信號。The LED driving device of claim 9, wherein the power signal synchronization circuit comprises: a Schmitt trigger, receiving a full-wave rectified signal, and generating a corresponding output; and a second de-noising circuit receiving the Correspondingly outputting, and removing the corresponding output noise to generate a preliminary synchronization signal; a zero/peak calculation circuit receiving the preliminary synchronization signal, and generating a zero synchronization signal and a peak signal by using the preliminary synchronization signal; And a counter that receives the zero sync signal and the peak signal, and generates the synchronous count signal by the zero sync signal and the peak signal.
如申請專利範圍第1項之LED驅動裝置，其中當該輸入信號持續為零且持續超過一預設時間值時，該可程式化陣列調光器輸出一特定計數信號至輸出模組電路。The LED driving device of claim 1, wherein the programmable array dimmer outputs a specific counting signal to the output module circuit when the input signal continues to be zero and continues for more than a predetermined time value.
如申請專利範圍第1項之LED驅動裝置，其中該計數信號控制該控制信號之一週期，該控制信號控制該發光亮度，且該計數信號是透過該模式資訊控制。The LED driving device of claim 1, wherein the counting signal controls one cycle of the control signal, the control signal controls the brightness of the light, and the counting signal is controlled by the mode information.
如申請專利範圍第1項之LED驅動裝置，其中該LED具有一最大發光亮度，當該模式資訊為一夜燈模式時，該類比電壓信號被配置為該參考信號，該發光亮度為該最大發光亮度的百分之一或以下。The LED driving device of claim 1, wherein the LED has a maximum luminance, and when the mode information is a nightlight mode, the analog voltage signal is configured as the reference signal, and the luminance is the maximum luminance. One percent or less.
一種發光二極體(LED)驅動裝置，包括：一電壓調整模組，接收一電源信號，且調整該電源信號的一電壓，而產生一電壓信號，該電源信號具有一開啟狀態與一關斷狀態，在該關斷狀態時該電壓調整模組維持該電壓信號；一電源關斷偵測電路，比較該電源信號與一參考信號，藉以偵測該關斷狀態與該開啟狀態；一模式檢測電路，根據該關斷狀態與該開啟狀態產生一模式資訊；以及一可程式化陣列調光電路，接收該模式資訊以產生一矩形波信號，並依據該矩形波信號控制該電壓信號所能供應至一LED的能量。A light-emitting diode (LED) driving device includes: a voltage adjusting module, receiving a power signal, and adjusting a voltage of the power signal to generate a voltage signal, the power signal having an open state and a turn-off a state in which the voltage adjustment module maintains the voltage signal; a power-off detection circuit that compares the power signal with a reference signal to detect the off state and the on state; a circuit, generating a mode information according to the off state and the on state; and a programmable array dimming circuit receiving the mode information to generate a rectangular wave signal, and controlling the voltage signal to be supplied according to the rectangular wave signal Energy to an LED.
如申請專利範圍第14項之LED驅動裝置，其中該可程式化陣列調光電路隨著接收不同該模式資訊而分別產生不同該矩形波信號，每一該矩形波信號之振幅皆相等。The LED driving device of claim 14, wherein the programmable array dimming circuit respectively generates different rectangular wave signals according to different mode information, and each of the rectangular wave signals has equal amplitudes.
一種發光二極體(LED)驅動裝置，包括：一電壓調整模組，接收一電源信號，而產生一電壓信號；以及一調光電路，因應一不同特定模式資訊以可程式化產生一不同特定矩形波信號，其中所有該矩形波信號之基礎脈寬係為一定值，並依據該矩形波信號控制該電壓信號所能供應至一LED的能量。A light-emitting diode (LED) driving device includes: a voltage adjusting module that receives a power signal to generate a voltage signal; and a dimming circuit that can be programmed to generate a different specificity according to a different specific mode information The rectangular wave signal, wherein the base pulse width of all the rectangular wave signals is a certain value, and the energy that the voltage signal can supply to an LED is controlled according to the rectangular wave signal.
一種發光二極體(LED)驅動裝置，包括：一電壓調整模組，接收一電源信號，而產生一電壓信號；以及一調光電路，可程式化產生複數組可供選擇信號波，其中該複數組可供選擇信號波在一特定週期內之脈波數量並非完全相同，各該信號波
係因應一特定模式信號，並具一特定基礎脈高，且該基礎脈高大於一雜訊脈高，俾依據各該信號波控制該電壓信號所能供應至一LED的能量。A light emitting diode (LED) driving device includes: a voltage adjusting module that receives a power signal to generate a voltage signal; and a dimming circuit that can programmatically generate a complex array of selectable signal waves, wherein the The number of pulses in a complex array for a particular period of time is not exactly the same, each of the signal waves
Corresponding to a specific mode signal, and having a specific base pulse height, and the base pulse height is greater than a noise pulse height, the energy of the LED signal can be supplied to an LED according to each of the signal waves.
一種發光二極體(LED)驅動裝置，因應一電源信號而操作一LED燈組，其中該電源信號具一開啟狀態與一關斷狀態，包括：一電源關斷偵測電路，比較該電源信號與一參考信號，藉以偵測該關斷狀態與該開啟狀態，並根據該關斷狀態與該開啟狀態之次數以決定該LED燈組之一發光模式。A light-emitting diode (LED) driving device operates an LED light group according to a power signal, wherein the power signal has an open state and an off state, including: a power-off detection circuit, and comparing the power signal And a reference signal for detecting the off state and the on state, and determining an illumination mode of the LED group according to the off state and the number of the on state.