TWI538557B - Dimmable and suppressible blinking light emitting diode driving apparatus without electrolytic capacitors - Google Patents
Dimmable and suppressible blinking light emitting diode driving apparatus without electrolytic capacitors Download PDFInfo
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Description
本發明係有關於一種發光二極體驅動裝置，特別是一種可調光及無電解電容抑制閃爍之發光二極體驅動裝置。 The invention relates to a light-emitting diode driving device, in particular to a light-emitting diode driving device for dimming and electroless capacitor suppression flicker.
相較於白熾光來源，發光二極體具有許多的優點，包含了比較低的能源損耗、比較長的壽命、改善的物理耐用性、比較小的尺寸及比較快的切換速度；因此，發光二極體已經被廣泛地運用以取代日光燈管或鎢絲燈。發光二極體驅動器係用以驅動發光二極體。 Compared with incandescent light sources, light-emitting diodes have many advantages, including relatively low energy loss, long life, improved physical durability, relatively small size and relatively fast switching speed; therefore, two light-emitting Polar bodies have been widely used to replace fluorescent tubes or tungsten lamps. The light emitting diode driver is used to drive the light emitting diode.
然而，在應用於傳統的調光器時，發光二極體會閃爍，且發光二極體驅動器需要電解電容進行濾波；而電解電容的成本昂貴且壽命短。 However, when applied to a conventional dimmer, the LEDs are flickering, and the LED driver requires electrolytic capacitors for filtering; the electrolytic capacitors are expensive and have a short life.
為改善上述習知技術之缺點，本發明之目的在於提供一種可調光及無電解電容抑制閃爍之發光二極體驅動裝置。 In order to improve the above disadvantages of the prior art, it is an object of the present invention to provide a light-emitting diode driving device for dimming and electroless capacitor suppression flicker.
為達成本發明之上述目的，本發明之可調光及無電解電容抑制閃爍之發光二極體驅動裝置係應用於一交流電源提供裝置、一調光器及至少一發光二極體，該可調光及無電解電容抑制閃爍之發光二極體驅動裝置包含：一整流單元，該整流單元電性連接至該調光器及該發光二極體；一積分取樣單元，該積分取樣 單元電性連接至該整流單元及該發光二極體；及一電壓對電流控制轉換單元，該電壓對電流控制轉換單元電性連接至該積分取樣單元及該發光二極體。其中該交流電源提供裝置傳送一交流電源至該調光器；該調光器對該交流電源進行調光以得到一調光電源；該調光器傳送該調光電源至該整流單元；該整流單元對該調光電源進行整流以得到一整流電源；該整流單元傳送該整流電源至該積分取樣單元及該發光二極體；該積分取樣單元對該整流電源進行積分取樣轉換以得到一積分電壓信號；該積分取樣單元傳送該積分電壓信號至該電壓對電流控制轉換單元；該電壓對電流控制轉換單元轉換該積分電壓信號以得到一驅動電流信號以驅動該發光二極體。 In order to achieve the above object of the present invention, the dimming and electroless capacitor-suppressing light-emitting diode driving device of the present invention is applied to an AC power supply device, a dimmer, and at least one light-emitting diode. The dimming and electroless capacitor suppressing flickering LED driving device comprises: a rectifying unit electrically connected to the dimmer and the light emitting diode; an integrating sampling unit, the integral sampling The unit is electrically connected to the rectifying unit and the illuminating diode; and a voltage-to-current control converting unit is electrically connected to the integrating sampling unit and the illuminating diode. The AC power supply device transmits an AC power to the dimmer; the dimmer dims the AC power to obtain a dimming power supply; the dimmer transmits the dimming power to the rectifying unit; The unit rectifies the dimming power supply to obtain a rectified power supply; the rectifying unit transmits the rectified power supply to the integral sampling unit and the LED; the integral sampling unit performs integral sampling conversion on the rectified power supply to obtain an integrated voltage a signal; the integrated sampling unit transmits the integrated voltage signal to the voltage-to-current control conversion unit; the voltage-to-current control conversion unit converts the integrated voltage signal to obtain a drive current signal to drive the light-emitting diode.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，其中該電壓對電流控制轉換單元包含：一第一接點；一第一運算放大器，該第一運算放大器電性連接至該第一接點及該積分取樣單元；及一第一電阻，該第一電阻電性連接至該第一運算放大器及該積分取樣單元。 The dimming and electroless capacitor suppressing flickering LED driving device as described above, wherein the voltage-to-current control converting unit comprises: a first contact; a first operational amplifier, the first operational amplifier electrical Connecting to the first contact and the integrated sampling unit; and a first resistor, the first resistor is electrically connected to the first operational amplifier and the integral sampling unit.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，其中該電壓對電流控制轉換單元更包含：一稽納二極體，該稽納二極體電性連接至該第一接點；一第一電容，該第一電容電性連接至該第一接點；及一第二電容，該第二電容電性連接至該第一運算放大器。 The dimming and electroless capacitor suppressing the flashing LED driving device as described above, wherein the voltage-to-current control converting unit further comprises: a register diode, the arrester diode being electrically connected to the a first capacitor, the first capacitor is electrically connected to the first contact; and a second capacitor is electrically connected to the first operational amplifier.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，其中該電壓對電流控制轉換單元更包含：一第二電阻，該第二電阻電性連接至該第一運算放大器及該第二電容；一第三電容，該第三電容電性連接至該第二電阻；及一第三電阻，該第三電阻電性連接至該第一運算放大器及該第二電容。 The dimming and electroless capacitor-suppressing flashing LED driving device as described above, wherein the voltage-to-current control converting unit further comprises: a second resistor electrically connected to the first operational amplifier And a second capacitor; the third capacitor is electrically connected to the second resistor; and a third resistor is electrically connected to the first operational amplifier and the second capacitor.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，其中該電壓對電流控制轉換單元更包含：一第一電晶體，該第一電晶體電性連接至該第二電阻、該第三電容、該第三電阻及該發光二極體；及一第四電阻，該第四電阻電性連接至該 第三電阻及該第一電晶體。 The dimming and electroless capacitor suppressing the flashing LED driving device as described above, wherein the voltage-to-current control converting unit further comprises: a first transistor, the first transistor being electrically connected to the second a resistor, the third capacitor, the third resistor, and the light emitting diode; and a fourth resistor electrically connected to the fourth resistor a third resistor and the first transistor.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，其中該積分取樣單元包含：一第二接點，該第二接點電性連接至該整流單元及該發光二極體；一第五電阻，該第五電阻電性連接至該第二接點；及一第六電阻，該第六電阻電性連接至該第五電阻及該電壓對電流控制轉換單元。 The dimming and electroless capacitor suppressing flickering LED driving device as described above, wherein the integrating sampling unit comprises: a second contact, the second contact is electrically connected to the rectifying unit and the emitting diode a fifth resistor, the fifth resistor is electrically connected to the second contact; and a sixth resistor electrically connected to the fifth resistor and the voltage to current control conversion unit.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，其中該積分取樣單元更包含：一第七電阻，該第七電阻電性連接至該第六電阻及該電壓對電流控制轉換單元；一第四電容，該第四電容電性連接至該第五電阻及該第六電阻；及一第五電容，該第五電容電性連接至該第六電阻、該電壓對電流控制轉換單元及該第七電阻。 The dimming and electroless capacitor suppressing flickering LED driving device as described above, wherein the integrating sampling unit further comprises: a seventh resistor electrically connected to the sixth resistor and the voltage pair a current control conversion unit; a fourth capacitor electrically connected to the fifth resistor and the sixth resistor; and a fifth capacitor electrically connected to the sixth resistor, the voltage pair a current control conversion unit and the seventh resistor.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，更包含：一第八電阻，該第八電阻電性連接至該第一接點；一第九電阻，該第九電阻電性連接至該第八電阻；及一第二運算放大器，該第二運算放大器電性連接至該第八電阻、該第九電阻、該第三電阻、該第四電阻及該第一電晶體。 The dimming and electroless capacitor suppressing flashing LED driving device as described above further includes: an eighth resistor electrically connected to the first contact; a ninth resistor, the first The nine resistors are electrically connected to the eighth resistor; and a second operational amplifier, the second operational amplifier is electrically connected to the eighth resistor, the ninth resistor, the third resistor, the fourth resistor, and the first Transistor.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，更包含：一第六電容，該第六電容電性連接至該第三電阻、該第四電阻、該第一電晶體及該第二運算放大器；一第十電阻，該第十電阻電性連接至該第二運算放大器；及一第十一電阻，該第十一電阻電性連接至該第十電阻。 The dimming and electroless capacitor suppressing flickering LED driving device as described above further includes: a sixth capacitor electrically connected to the third resistor, the fourth resistor, the first a transistor and the second operational amplifier; a tenth resistor electrically connected to the second operational amplifier; and an eleventh resistor electrically connected to the tenth resistor.
如上所述之可調光及無電解電容抑制閃爍之發光二極體驅動裝置，更包含：一第二電晶體，該第二電晶體電性連接至該第十電阻及該第十一電阻；一第十二電阻，該第十二電阻電性連接至該第二電晶體及該第二接點；一二極體，該二極體電性連接至該第二接點；及一第十三電阻，該第十三電阻電性連接至該二極體及該第一接點。 The dimming and electroless capacitor-suppressing light-emitting diode driving device as described above further includes: a second transistor electrically connected to the tenth resistor and the eleventh resistor; a twelfth resistor, the twelfth resistor is electrically connected to the second transistor and the second contact; a diode, the diode is electrically connected to the second contact; and a tenth The third resistor is electrically connected to the diode and the first contact.
本發明之功效在於在應用於傳統的調光器時，發光二極體不會閃爍，且發光二極體驅動器不需要電解電容進行濾波。 The effect of the present invention is that when applied to a conventional dimmer, the light emitting diode does not flicker, and the light emitting diode driver does not require electrolytic capacitors for filtering.
10‧‧‧可調光及無電解電容抑制閃爍之發光二極體驅動裝置 10‧‧‧Light-emitting diode drive with dimmable and electroless capacitors to suppress flicker
20‧‧‧交流電源提供裝置 20‧‧‧AC power supply unit
22‧‧‧交流電源 22‧‧‧AC power supply
30‧‧‧調光器 30‧‧‧Dimmer
32‧‧‧調光電源 32‧‧‧ dimming power supply
40‧‧‧發光二極體 40‧‧‧Lighting diode
102‧‧‧整流單元 102‧‧‧Rectifier unit
104‧‧‧積分取樣單元 104‧‧‧Integral sampling unit
106‧‧‧電壓對電流控制轉換單元 106‧‧‧Voltage-to-current control conversion unit
108‧‧‧整流電源 108‧‧‧Rectified power supply
110‧‧‧積分電壓信號 110‧‧‧Integral voltage signal
112‧‧‧驅動電流信號 112‧‧‧Drive current signal
114‧‧‧第八電阻 114‧‧‧8th resistor
116‧‧‧第九電阻 116‧‧‧ ninth resistor
118‧‧‧第二運算放大器 118‧‧‧Second operational amplifier
120‧‧‧第六電容 120‧‧‧ sixth capacitor
122‧‧‧第十電阻 122‧‧‧10th resistor
124‧‧‧第十一電阻 124‧‧‧Eleventh resistor
126‧‧‧第二電晶體 126‧‧‧second transistor
128‧‧‧第十二電阻 128‧‧‧12th resistor
130‧‧‧二極體 130‧‧‧ diode
132‧‧‧第十三電阻 132‧‧‧13th resistor
10402‧‧‧第二接點 10402‧‧‧second junction
10404‧‧‧第五電阻 10404‧‧‧ fifth resistor
10406‧‧‧第六電阻 10406‧‧‧6th resistor
10408‧‧‧第七電阻 10408‧‧‧ seventh resistor
10410‧‧‧第四電容 10410‧‧‧fourth capacitor
10412‧‧‧第五電容 10412‧‧‧ fifth capacitor
10602‧‧‧第一接點 10602‧‧‧First contact
10604‧‧‧第一運算放大器 10604‧‧‧First operational amplifier
10606‧‧‧第一電阻 10606‧‧‧First resistance
10608‧‧‧稽納二極體 10608‧‧‧Jenner diode
10610‧‧‧第一電容 10610‧‧‧first capacitor
10612‧‧‧第二電容 10612‧‧‧second capacitor
10614‧‧‧第二電阻 10614‧‧‧second resistance
10616‧‧‧第三電容 10616‧‧‧ third capacitor
10618‧‧‧第三電阻 10618‧‧‧ Third resistor
10620‧‧‧第一電晶體 10620‧‧‧First transistor
10622‧‧‧第四電阻 10622‧‧‧fourth resistor
第一圖為本發明之可調光及無電解電容抑制閃爍之發光二極體驅動裝置之第一實施例方塊圖。 The first figure is a block diagram of a first embodiment of a light-emitting diode driving device for dimming and electroless capacitor suppression flicker of the present invention.
第二圖為本發明之電壓對電流控制轉換單元方塊圖。 The second figure is a block diagram of the voltage-to-current control conversion unit of the present invention.
第三圖為本發明之積分取樣單元方塊圖。 The third figure is a block diagram of the integral sampling unit of the present invention.
第四圖為本發明之可調光及無電解電容抑制閃爍之發光二極體驅動裝置之第二實施例方塊圖。 The fourth figure is a block diagram of a second embodiment of the light-emitting diode driving device for dimming and electroless capacitor suppression flicker of the present invention.
請參考第一圖，其係為本發明之可調光及無電解電容抑制閃爍之發光二極體驅動裝置之第一實施例方塊圖。一可調光及無電解電容抑制閃爍之發光二極體驅動裝置10係應用於一交流電源提供裝置20、一調光器30及至少一發光二極體40；該可調光及無電解電容抑制閃爍之發光二極體驅動裝置10包含一整流單元102、一積分取樣單元104及一電壓對電流控制轉換單元106。 Please refer to the first figure, which is a block diagram of a first embodiment of the light-emitting diode driving device for dimming and electroless capacitor suppression flicker of the present invention. A dimmable and electroless capacitor-suppressing light-emitting diode driving device 10 is applied to an AC power supply device 20, a dimmer 30 and at least one LED diode 40; the dimmable and electroless capacitor The light-emitting diode driving device 10 for suppressing flicker includes a rectifying unit 102, an integrating sampling unit 104, and a voltage-to-current control converting unit 106.
該整流單元102電性連接至該調光器30及該發光二極體40；該積分取樣單元104電性連接至該整流單元102及該發光二極體40；該電壓對電流控制轉換單元106電性連接至該積分取樣單元104及該發光二極體40。 The rectifying unit 102 is electrically connected to the dimmer 30 and the illuminating diode 40; the integrating sampling unit 104 is electrically connected to the rectifying unit 102 and the illuminating diode 40; the voltage-to-current control converting unit 106 The integrated sampling unit 104 and the LEDs 40 are electrically connected.
該交流電源提供裝置20傳送一交流電源22至該調光器30；該調光器30對該交流電源22進行調光以得到一調光電源32；該調光器30傳送該調光電源32至該整流單元102；該整流單元102對該調光電源32進行整流以得到一整流電源108；該整流單元102傳送該整流電源108至該積分取樣單元104及該發光二極體40。 The AC power supply device 20 transmits an AC power source 22 to the dimmer 30; the dimmer 30 dims the AC power source 22 to obtain a dimming power source 32; the dimmer 30 transmits the dimming power source 32. The rectifying unit 102 rectifies the dimming power source 32 to obtain a rectifying power source 108. The rectifying unit 102 transmits the rectifying power source 108 to the integrating sampling unit 104 and the LED body 40.
該積分取樣單元104對該整流電源108進行積分取樣轉換以得到一積分電壓信號110；該積分取樣單元104傳送該積分電壓信號110至該電壓對電流控制轉換單元106；該電壓對電流控制轉換單元106轉換該積分電壓信號110以得到一驅動電流信號112 以驅動該發光二極體40。該驅動電流信號112為恆定，故能抑制該發光二極體40的閃爍。 The integral sampling unit 104 performs integral sampling conversion on the rectified power supply 108 to obtain an integrated voltage signal 110; the integrated sampling unit 104 transmits the integrated voltage signal 110 to the voltage-to-current controlled conversion unit 106; the voltage-to-current controlled conversion unit 106 converting the integrated voltage signal 110 to obtain a driving current signal 112 The light emitting diode 40 is driven. Since the drive current signal 112 is constant, the flicker of the light-emitting diode 40 can be suppressed.
請參考第二圖，其係為本發明之電壓對電流控制轉換單元方塊圖。該電壓對電流控制轉換單元106包含一第一接點10602、一第一運算放大器10604、一第一電阻10606、一稽納二極體10608、一第一電容10610、一第二電容10612、一第二電阻10614、一第三電容10616、一第三電阻10618、一第一電晶體10620及一第四電阻10622。 Please refer to the second figure, which is a block diagram of the voltage-to-current control conversion unit of the present invention. The voltage-to-current control conversion unit 106 includes a first contact 10602, a first operational amplifier 10604, a first resistor 10606, a first-order diode 10608, a first capacitor 10610, and a second capacitor 10612. The second resistor 10614, a third capacitor 10616, a third resistor 10618, a first transistor 10620 and a fourth resistor 10622.
該第一運算放大器10604電性連接至該第一接點10602及該積分取樣單元104；該第一電阻10606電性連接至該第一運算放大器10604及該積分取樣單元104；該稽納二極體10608電性連接至該第一接點10602；該第一電容10610電性連接至該第一接點10602；該第二電容10612電性連接至該第一運算放大器10604。 The first operational amplifier 10604 is electrically connected to the first contact 10602 and the integrated sampling unit 104; the first resistor 10606 is electrically connected to the first operational amplifier 10604 and the integral sampling unit 104; The body 10608 is electrically connected to the first contact 10602; the first capacitor 10610 is electrically connected to the first contact 10602; the second capacitor 10612 is electrically connected to the first operational amplifier 10604.
該第二電阻10614電性連接至該第一運算放大器10604及該第二電容10612；該第三電容10616電性連接至該第二電阻10614；該第三電阻10618電性連接至該第一運算放大器10604及該第二電容10612；該第一電晶體10620電性連接至該第二電阻10614、該第三電容10616、該第三電阻10618及該發光二極體40；該第四電阻10622電性連接至該第三電阻10618及該第一電晶體10620。 The second resistor 10614 is electrically connected to the first operational amplifier 10604 and the second capacitor 10612; the third capacitor 10616 is electrically connected to the second resistor 10614; the third resistor 1018 is electrically connected to the first operation An amplifier 10604 and the second capacitor 10612; the first transistor 10620 is electrically connected to the second resistor 10614, the third capacitor 10616, the third resistor 10618 and the LED body 40; the fourth resistor 10622 is electrically Optionally connected to the third resistor 10618 and the first transistor 10620.
請參考第三圖，其係為本發明之積分取樣單元方塊圖。該積分取樣單元104包含一第二接點10402、一第五電阻10404、一第六電阻10406、一第七電阻10408、一第四電容10410及一第五電容10412。 Please refer to the third figure, which is a block diagram of the integral sampling unit of the present invention. The integral sampling unit 104 includes a second contact 10402, a fifth resistor 10404, a sixth resistor 10406, a seventh resistor 10408, a fourth capacitor 10410, and a fifth capacitor 10412.
該第二接點10402電性連接至該整流單元102及該發光二極體40；該第五電阻10404電性連接至該第二接點10402；該第六電阻10406電性連接至該第五電阻10404及該電壓對電流控制轉換單元106；該第七電阻10408電性連接至該第六電阻10406及該電壓對電流控制轉換單元106；該第四電容10410電性連接至該第五電阻10404及該第六電阻10406；該第五電容10412電性 連接至該第六電阻10406、該電壓對電流控制轉換單元106及該第七電阻10408。 The second contact 10402 is electrically connected to the rectifying unit 102 and the light emitting diode 40; the fifth resistor 10404 is electrically connected to the second contact 10402; the sixth resistor 10406 is electrically connected to the fifth The resistor 10404 and the voltage-to-current control conversion unit 106; the seventh resistor 10408 is electrically connected to the sixth resistor 10406 and the voltage-to-current control conversion unit 106; the fourth capacitor 10410 is electrically connected to the fifth resistor 10404 And the sixth resistor 10406; the fifth capacitor 10412 is electrically Connected to the sixth resistor 10406, the voltage-to-current control conversion unit 106 and the seventh resistor 10408.
請參考第四圖，其係為本發明之可調光及無電解電容抑制閃爍之發光二極體驅動裝置之第二實施例方塊圖。第四圖所示之元件敘述與第一、二、三圖相似者，為簡潔因素，於此不再贅述。該可調光及無電解電容抑制閃爍之發光二極體驅動裝置10更包含一第八電阻114、一第九電阻116、一第二運算放大器118、一第六電容120、一第十電阻122、一第十一電阻124、一第二電晶體126、一第十二電阻128、一二極體130及一第十三電阻132。 Please refer to the fourth figure, which is a block diagram of a second embodiment of the light-emitting diode driving device for dimming and electroless capacitor suppression flicker of the present invention. The component descriptions shown in the fourth figure are similar to those of the first, second and third figures, and are not conclusive for the sake of brevity. The light-emitting diode driving device 10 further includes an eighth resistor 114, a ninth resistor 116, a second operational amplifier 118, a sixth capacitor 120, and a tenth resistor 122. An eleventh resistor 124, a second transistor 126, a twelfth resistor 128, a diode 130 and a thirteenth resistor 132.
該第八電阻114電性連接至該第一接點10602；該第九電阻116電性連接至該第八電阻114；該第二運算放大器118電性連接至該第八電阻114、該第九電阻116、該第三電阻10618、該第四電阻10622及該第一電晶體10620；該第六電容120電性連接至該第三電阻10618、該第四電阻10622、該第一電晶體10620及該第二運算放大器118；該第十電阻122電性連接至該第二運算放大器118；該第十一電阻124電性連接至該第十電阻122；該第二電晶體126電性連接至該第十電阻122及該第十一電阻124；該第十二電阻128電性連接至該第二電晶體126及該第二接點10402；該二極體130電性連接至該第二接點10402；該第十三電阻132電性連接至該二極體130及該第一接點10602。 The eighth resistor 114 is electrically connected to the first contact 10602; the ninth resistor 116 is electrically connected to the eighth resistor 114; the second operational amplifier 118 is electrically connected to the eighth resistor 114, the ninth The resistor 116, the third resistor 10618, the fourth resistor 10622 and the first transistor 10620; the sixth capacitor 120 is electrically connected to the third resistor 10618, the fourth resistor 10622, the first transistor 10620, and The second operational amplifier 118 is electrically connected to the second operational amplifier 118; the eleventh resistor 124 is electrically connected to the tenth resistor 122; the second transistor 126 is electrically connected to the a tenth resistor 122 and the eleventh resistor 124; the twelfth resistor 128 is electrically connected to the second transistor 126 and the second contact 10402; the diode 130 is electrically connected to the second contact The thirteenth resistor 132 is electrically connected to the diode 130 and the first contact 10602.
本發明之功效在於在應用於傳統的調光器時，發光二極體不會閃爍，且發光二極體驅動器不需要電解電容進行濾波。 The effect of the present invention is that when applied to a conventional dimmer, the light emitting diode does not flicker, and the light emitting diode driver does not require electrolytic capacitors for filtering.
然以上所述者，僅為本發明之較佳實施例，當不能限定本發明實施之範圍，即凡依本發明申請專利範圍所作之均等變化與修飾等，皆應仍屬本發明之專利涵蓋範圍意圖保護之範疇。綜上所述，當知本發明已具有產業利用性、新穎性與進步性，又本發明之構造亦未曾見於同類產品及公開使用，完全符合發明專利申請要件，爰依專利法提出申請。 However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the present invention should still be covered by the patent of the present invention. The scope of the scope is intended to protect. In summary, it is known that the present invention has industrial applicability, novelty and advancement, and the structure of the present invention has not been seen in similar products and public use, and fully complies with the requirements of the invention patent application, and is filed according to the patent law.
10‧‧‧可調光及無電解電容抑制閃爍之發光二極體驅動裝置 10‧‧‧Light-emitting diode drive with dimmable and electroless capacitors to suppress flicker
20‧‧‧交流電源提供裝置 20‧‧‧AC power supply unit
22‧‧‧交流電源 22‧‧‧AC power supply
30‧‧‧調光器 30‧‧‧Dimmer
32‧‧‧調光電源 32‧‧‧ dimming power supply
40‧‧‧發光二極體 40‧‧‧Lighting diode
102‧‧‧整流單元 102‧‧‧Rectifier unit
104‧‧‧積分取樣單元 104‧‧‧Integral sampling unit
106‧‧‧電壓對電流控制轉換單元 106‧‧‧Voltage-to-current control conversion unit
108‧‧‧整流電源 108‧‧‧Rectified power supply
110‧‧‧積分電壓信號 110‧‧‧Integral voltage signal
112‧‧‧驅動電流信號 112‧‧‧Drive current signal
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
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| TW103101227A TWI538557B (en) | 2014-01-21 | 2014-01-21 | Dimmable and suppressible blinking light emitting diode driving apparatus without electrolytic capacitors |
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| Application Number | Priority Date | Filing Date | Title |
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| TW103101227A TWI538557B (en) | 2014-01-21 | 2014-01-21 | Dimmable and suppressible blinking light emitting diode driving apparatus without electrolytic capacitors |
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| Publication Number | Publication Date |
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| TW201531147A TW201531147A (en) | 2015-08-01 |
| TWI538557B true TWI538557B (en) | 2016-06-11 |
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| Country | Link |
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| TW (1) | TWI538557B (en) |
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