1311959 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種LED照後鏡之控制電路，尤指一種適用於機車照後 鏡且控制LED的明滅狀態達到警示功能的LED照後鏡之控制雷踗。 【先前技術】 車輛在行駛的過程中，若駕駛人欲減速、變換車道或轉彎時，會藉由 警不燈提醒其他駕駛人其車輛之動向，以免發生碰撞等影響行車安全之情 形。因此，警示燈的作用並非用於照明，而是利用燈光的視覺效果提醒其 他駕駛人該行駛車輛的動向，然而，一般指示行車動向的警示燈大部分安 • 裝於車頭燈及車尾燈處，以供前、後方及側邊來車辨認該車輛之行駛動向 ，為了加強提醒的範圍與作用，更有車輛進一步在其照後鏡處或車體兩側 裝設警示燈。 如中華民國專利公告第243784號的「車輛警示燈裝置」，係包括一用 以提供線路之電源且具穩壓效果電源供應穩壓器；一用以調整燈泡於車輛 行駛中警示燈燈泡左右跳動發亮之速度的振盪器、一上、下計數器及用以 控制該計數器之上計數或下計數的兩控制器、一用以接受上、下計數器輸 出訊號的解碼器、一具有數個受解碼器之輸出所控制之燈泡的警示燈；其^ 中’解碼H解示删具有—控糊，而馳綱之—端連接有—踩刹^ • 時即可導通之控制器；藉車輛踩剎車時該控制器便導通，傳予該控制閘一 低電位’使鋪_婦示賴紐泡全亮；而車輛未踩财、電源於開 動或灯駛中時控制器未導通，使控綱控制警示燈呈左、右跳動閃燦狀， 使車輛於冬不同行駛狀況，具有二種不同安全警示識別者。但本習知技術 若於車輛轉幫其方向燈及煞車燈同時作動時，則無法以警示燈明滅之方式 區分車輛行駛之動向，易使其他駕駛人產生誤會而發生危險。 又如中華民國專利公告第M285489號的「車辅警示健職統」，其包 含一計數器積體電路1C ’該計數器積體電路IC並設有由複數電容、複數指 示燈、稽納二極體及電阻組成之穩定電路，複數指示燈分布於電路板之週 邊，行車小仪燈之訊號係以二極體及電阻連接到前述計數器積體電路IC 組成之控魏路；縣狀域伽二減、稽納二鋪及電岐接到前 1311959 述計數浦體電路IC組成之控制電路；—方向燈，具有獨立 電路’以二極體配合方向燈組成之獨立運作效果知技術雖改盖= 習知技術之問題，但仍存在-些缺失，那就是本f知技術其二 燈之輸入訊舰獨立傳齡對應光二極體，因此 電 增加生產成本及絲_。 ~ 【發明内容】 本發明的主要目的，在独單—迴路之控織路_發 生具警示作用之效果。 良1311959 IX. Description of the invention: [Technical field of invention] The present invention relates to a control circuit for an LED backlight mirror, and more particularly to an LED backlight mirror suitable for use in a locomotive rear mirror and controlling the LED's extinguishing state to achieve a warning function. Control the Thunder. [Prior Art] If the driver wants to slow down, change lanes or make a turn while driving, the driver will remind other drivers of the movement of the vehicle by warning lights to avoid collisions and other situations that affect driving safety. Therefore, the role of the warning light is not for lighting, but the visual effect of the light is used to remind other drivers of the movement of the vehicle. However, most of the warning lights indicating the driving direction are installed at the headlights and the taillights. In order to enhance the driving range of the vehicle, the vehicle is further equipped with warning lights at the rear mirror or on both sides of the vehicle. For example, the "vehicle warning light device" of the Republic of China Patent No. 243784 includes a power supply voltage regulator for supplying power to the line and having a voltage-regulating effect; one for adjusting the light bulb to be left and right of the warning light bulb while the vehicle is running a speed-increasing oscillator, an up-and-down counter, and two controllers for controlling counting or counting down on the counter, a decoder for receiving up and down counter output signals, and a plurality of decoded The warning light of the light bulb controlled by the output of the device; the ^ decoding in the ^ decoding shows that there is a control paste, and the controller is connected to the terminal - the brake can be turned on when the controller is turned on; When the controller is turned on, the control device transmits a low potential to make the shop _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The warning light flashes left and right, which makes the vehicle different driving conditions in winter, and has two different safety warning identifiers. However, if the vehicle is turned to the direction of the directional light and the illuminating light at the same time, the direction of the vehicle cannot be distinguished by the warning light, which may cause misunderstanding of other drivers and cause danger. Another example is the "Motor-assisted warning system" of the Republic of China Patent Bulletin No. M285489, which includes a counter integrated circuit 1C 'the counter integrated circuit IC and is provided with a plurality of capacitors, a plurality of indicator lights, a sigma diode And a stable circuit composed of resistors, the plurality of indicator lights are distributed around the circuit board, and the signal of the driving small lamp is connected to the counter integrated circuit IC by the diode and the resistor; the county-like gamma subtraction , the second shop and the eDonkey received the control circuit composed of the IC circuit of the first 1311959; the directional lamp, with the independent circuit's independent operation effect composed of the diode with the directional lamp, although the cover is changed = Knowing the problem of technology, but there are still some missing, that is, the technology of the second light of the input light of the independent light source corresponds to the light diode, so the electricity increases the production cost and the wire. [Explanation] The main object of the present invention is to have a warning effect in the single-loop-controlled weaving path. good
路上Γ二鱗上述目的，本發明提出一卿照、後鏡之控制電 '、3入、〃一輸出裝置相連接，該輸入裝置以一麵單元、一第 與—第二紐單元並聯於—電力單元後端，該電力單元係分別 域號至該繼單元及該第―、二震鮮元_成—穩壓訊號、 第一震盪，號及-第二震盪訊號；而該輸出装置包含一第一發光單元及 第發光單元謂、一發光單元分別具有至少一發光二極體，該些 發光二極體係具有不同之導通電壓，射，該穩壓織與該第―、二震盈 訊说相互混合錄人該輸出裝置，並傳輸至該第―、二發光單元而使發光 -極體產生統。而本發明LED照後鏡之控㈣路至少具有下列優點： 本發月僅單一迴路之電路控制各輸入訊號（如大燈、方向燈及 煞車燈）’可節省生產成本且安裝過程簡易省時。 二、本發明以具有不畴通電壓之發光二極體接收具有不同高低準 位及頻率之輸入訊號，使不同電壓訊號驅動不同燈色之發光二極 體，具有較佳之辨識度。 【實施方式】 2關本7明之詳細綱及技_容，現就配合圖式翻如下： .月參閱第1圖』所示，係為本發明LED照後鏡之控制電路的方塊圖 ’如圖所7F ’本發明以—輸人裝置丨與—輸出裝置2相連接形成主要架構 ’及輸入裝置1係以—穩壓單元u、—第_震鮮元丨2與―第二震盈單元 於—電力單70 1G後端’該電力單元1G分別提供—輸入訊號Vi至該 !>、、單70 11及§亥第一、二震盪單元12、13 m產生不同準位或頻率之穩壓 1311959 - 訊號Vs、第一紐訊號Vsl及第二震盪訊號Vs2，該穩壓訊號Vs及該第 一、二震盪訊號Vsl、Vs2混合後輸入該輸出裝置2，並分別傳輸至第一發 光單元21及第二發光單元η，如是構成—種LED照後鏡之控制電路，在 本發明中該第一、二震盪單元12、13可為555震盪器。 另請參閱『第2圖』所示’係為本發日月LED照後鏡之控制電路的實施 例示意圖；第2圖的電路中包括-輸入裝置i及一輸出裝置2,該輸入裝置 1與該輸ili裝置2係相互連結，該輸人裝置丨的電力單元1G (本實施例中 以車用電池為最佳）係分別傳送一輸入訊號％至該穩壓單元u、第一震盪 單το I2及第二震盈單元13 ;該穩壓單元u主要係為一共基型態 • Base)之讎電路’以齊納二極體ZenderDi〇de提供電晶體Q1其基極（b咖 )與射極（emitter)之導通電壓，再經二極體D1串聯輸出而形成一穩定的 電壓訊號’其中’電容ci係用以消除雜訊；而該第一、二震盪單元12、 13可將該輸入訊號Vi轉換為具高、低準位的方波週期訊號，即第一震靈訊 號Vsl與第二震堡訊號Vs2，其中，該第一、二紐訊號Μ、敗係林 同鮮之訊號’在本發明實施例中，該第一震盈訊號Vsl其頻率係較該第 二震盛訊號Vs2低，且該第-、二紐訊號糾、Vs2係具有較該穩壓=號 Vs高之電位；該穩壓訊號Vs及第一、二震盈訊號Μ、似混合後產生 合成訊號Vm ’該合成訊號Vm係分別傳輸至該輸出裝置2之第一發光單元 φ 21及第二發光單元22 ’該第一、第二發光單元2卜22係分別包含一怪产 電路及至少-發光二鋪LED卜LED2，以第一發光單元21為例，其伍: 電路主要由二電晶體Q2、Q4及複數偏屢電組器幻、R4、R6所構成，其 中電晶體Q4之基姆連接至電晶體Q2之雜，當合成峨％進入時， 電晶體Q4關閉（turnoff)而電晶體②導通（tum〇n)，故電阻器則上之 電流係全部供應電晶體Q2作為基極電流，並結合集極電流形成射極電流而 於電阻器R6上產生壓降，當電阻器R6兩叙賴到達預設值而提供電晶 體Q4其基極與射極足以之導通電壓使其導通時，電晶體Q4之集極曰(曰 collector)便產生一集極電流，使原本經電阻器R4流至電晶體之其極電 流降低，進而導致電晶體Q2的集極電流減少，如此，若將電阻器^上的 偏慶固定在預設值即可使流經發光二極體LED1之電流穩定；在本實施例 1311959 : 中，該發光二極體LED2具有較發光二極體LHD1高之導通電壓，僅可被具 有較高電位的第一、二震盪訊號Vsl、Vs2所驅動發光。 請參閱『第3圖』所示，係為本發明LED照後鏡之控制電路的輪入訊 號及其合成之示意圖；藉以說明該穩壓訊號Vs與該第一、二震靈訊號Vsl 、Vs2及其相互加成後驅動發光二極體LED1、LED2明滅之情況，如圖所 示’該穩壓單元11係將該電力單元10之輸入訊號Vi轉換成—穩定的穩壓 訊號Vs，可使發光二極體LHD1導通而持續產生光源，而令具較高導通電 壓之發光二極體LED2呈恆滅狀態；該第一、二震盪單元12、13係將電力 單元10之輸入訊號Vi分別轉換為一具有高、低準位的第一、二震盪訊號 鲁 Vsl Vs2，可使發光一極體LED1、LED2於單位週期内產生明滅的閃燦態 樣，其中該第二震盪訊號Vs2係具有較高之頻率，意即發光二極體LED1 、LED2藉該第二震蘆訊號VS2產生閃爍速度較快之光源；當穩壓訊號％ 分別與第-、二震盪訊號Vs卜Vs2合成時，因該發光二極體LEm受讎 訊號Vs驅動故保持發光狀態，而該發光二極體LED2受第一、二震盪訊號The above object is to illuminate the two scales on the road, and the present invention proposes that the control unit of the illuminating and rear mirrors is connected, and the input device is connected by a unit, a first unit and a second unit. a power unit back end, the power unit is respectively a domain number to the relay unit and the first, second, and second oscillating signals, a first oscillating number, and a second oscillating signal; and the output device includes a The first light-emitting unit and the first light-emitting unit respectively have a light-emitting unit having at least one light-emitting diode, and the light-emitting diode systems have different on-voltages, and the voltage is woven and the first and second earthquakes are said to be The output device is mixed with each other and transmitted to the first and second light-emitting units to cause the light-emitting body to be integrated. The control (4) of the LED backlight mirror of the present invention has at least the following advantages: The circuit of the single loop only controls the input signals (such as headlights, directional lights and brake lights) in the month of the month, which can save production cost and save the installation process. . 2. The present invention provides a light-emitting diode having different levels of high and low levels and frequencies by means of a light-emitting diode having a non-domain voltage, so that different voltage signals drive the light-emitting diodes of different light colors, and the recognition degree is better. [Embodiment] 2 The detailed outline and skill of the book are shown below. The following is a block diagram of the control circuit of the LED backlight mirror. Figure 7F 'The present invention connects the input device to the output device 2 to form a main structure' and the input device 1 is a voltage stabilizing unit u, a _ _ _ _ _ _ _ 2 and a second tremor unit At the back end of the power meter 70 1G, the power unit 1G provides the input signal Vi to the !>, the single 70 11 and the first and second oscillating units 12, 13 m to generate different levels or frequencies. The voltage signal Vs, the first signal Vsl and the second oscillation signal Vs2 are mixed, and the voltage signal Vs and the first and second oscillation signals Vsl and Vs2 are mixed and input to the output device 2, and respectively transmitted to the first light unit. 21 and the second light-emitting unit η, if it is a control circuit for the LED backlight, in the present invention, the first and second oscillating units 12, 13 can be 555 oscillators. Please also refer to the second embodiment of the present invention, which is a schematic diagram of an embodiment of a control circuit for a LED backlight mirror; the circuit of FIG. 2 includes an input device i and an output device 2, the input device 1 Connected to the infusion device 2, the power unit 1G of the input device (the battery in the embodiment is optimal) transmits an input signal % to the voltage regulator unit u and the first oscillation table. Το I2 and the second seismic unit 13; the voltage stabilizing unit u is mainly a common base type • Base) 雠 circuit 'Zener diode ZenderDi〇de provides the base of the transistor Q1 (b coffee) and The on-voltage of the emitter is then outputted in series by the diode D1 to form a stable voltage signal 'where the capacitance ci is used to eliminate noise; and the first and second oscillation units 12, 13 can The input signal Vi is converted into a square wave periodic signal with high and low levels, that is, the first seismic signal Vsl and the second seismic signal Vs2, wherein the first and second signals are smashed and the signal is weak. In the embodiment of the present invention, the first seismic signal Vsl has a frequency that is higher than the second seismic signal Vs2. Low, and the first and second signals are corrected, and the Vs2 system has a higher potential than the voltage regulator = Vs; the voltage regulator signal Vs and the first and second earthquake signals are mixed, and the composite signal Vm is generated. The composite signal Vm is respectively transmitted to the first light emitting unit φ 21 and the second light emitting unit 22 of the output device 2. The first and second light emitting units 2 and 22 respectively comprise a strange circuit and at least a light emitting diode LED. Bub LED2, taking the first light-emitting unit 21 as an example, the circuit: the circuit is mainly composed of two transistors Q2, Q4 and a plurality of flip-flops, R4, R6, wherein the base of the transistor Q4 is connected to the transistor Q2 is mixed, when the synthetic 峨% enters, the transistor Q4 turns off (turnoff) and the transistor 2 turns on (tum〇n), so the current on the resistor is all supplied to the transistor Q2 as the base current, and the combination The pole current forms an emitter current and generates a voltage drop across the resistor R6. When the resistor R6 reaches a predetermined value and provides the transistor Q4 with its base and emitter having a sufficient turn-on voltage to turn it on, the transistor Q4 The collector collector produces a set of pole currents that would otherwise pass through the resistor R4. The current flowing to the transistor is reduced, which leads to a decrease in the collector current of the transistor Q2. Thus, if the bias on the resistor is fixed at a preset value, the current flowing through the LED of the LED can be stabilized. In the embodiment 1311959: the LED 2 has a higher on-voltage than the LED LHD1, and can be driven only by the first and second oscillation signals Vs1 and Vs2 having a higher potential. Please refer to FIG. 3, which is a schematic diagram of the wheeled signal and its synthesis of the control circuit of the LED backlight mirror of the present invention; thereby illustrating the voltage stabilization signal Vs and the first and second seismic signals Vsl and Vs2 After the mutual addition, the LEDs LED1 and LED2 are driven to be extinguished. As shown in the figure, the voltage stabilizing unit 11 converts the input signal Vi of the power unit 10 into a stable voltage stabilization signal Vs. The LED LHD1 is turned on to continuously generate a light source, and the LED 2 with a higher on-voltage is in a permanent state; the first and second oscillation units 12 and 13 respectively convert the input signal Vi of the power unit 10 For the first and second oscillating signals Lu Vsl Vs2 with high and low levels, the illuminating one-pole LED1 and LED2 can be extinguished in a unit period, wherein the second oscillating signal Vs2 has a comparison. The high frequency means that the LEDs LED1 and LED2 generate a light source with a faster blinking speed by using the second oscillating signal VS2; when the voltage stabilization signal % is combined with the first and second oscillating signals Vs and Vs2 respectively, Light-emitting diode LEm is driven by the signal Vs Light emission state, and the first light-emitting diode LED2, two oscillation signal receptor
Vs卜Vs2驅動則呈閃爍狀態；另外，當第一、二震盪訊號vsi、vs2相互 合成時，發光二極體LED1、LED2係於單位週期内持續發光一段時間後， 另以閃爍之縣呈現。本發明之發光二極體LEm、LEm係可為不同顏色 如藍光及η光，藉其燈色之差異及明滅狀態之不同，令本發明具有較佳 鲁職度，使其他駕驶人㈣確分職設有本㈣之車輛其行狀動向，以 確保行車安全。 〃綜上所述僅為本發明的較佳實施例而已，並非用來限定本發明之實施 fc圍即凡依本發明申請專利範圍之内容所為的等效變化與修飾，皆應為 本發明之技術蘇.鳴。 1311959 【圖式簡單說明】 第1圖，係為本發明LED照後鏡之控制電路的方塊圖。 第2圖，係為本發明LED照後鏡之控制電路的實施例示意圖。 第3圖，係為本發明LED照後鏡之控制電路的輸入訊號及其合成示意圖。 【主要元件符號說明】 1 ..............輸入裝置 10 ..............電力單元 11 ..............穩壓單元 12 ..............第一震盪單元 13 ..............第二震盪單元 2 ..............輸出裝置 21 ..............第一發光單元 22 ..............第二發光單元The VsBu Vs2 driver is in a blinking state. In addition, when the first and second oscillating signals vsi and vs2 are combined with each other, the LEDs LED1 and LED2 are continuously illuminated for a period of time in a unit period, and are displayed in a flashing county. The light-emitting diodes LEm and LEm of the present invention can be of different colors such as blue light and η light, and the difference in the color of the light and the state of the light-off state make the present invention have better goodness, so that other drivers (four) can be surely divided. The position of the vehicle of this (4) is set to ensure the safety of driving. The above is only the preferred embodiment of the present invention, and is not intended to limit the implementation of the present invention. The equivalent variations and modifications of the present invention in the context of the present invention are intended to be Technical Su. 1311959 [Simple description of the drawings] Fig. 1 is a block diagram of the control circuit of the LED backlight mirror of the present invention. Fig. 2 is a schematic view showing an embodiment of a control circuit for an LED backlight mirror of the present invention. Fig. 3 is a schematic diagram showing the input signal of the control circuit of the LED backlight mirror of the present invention and its synthesis. [Description of main component symbols] 1 ..............Input device 10 ..............Power unit 11 ......... ..... voltage stabilizing unit 12 .............. first oscillating unit 13 ........... second oscillating unit 2 ... ...........output device 21 ..............first light-emitting unit 22 ..............second light unit