1275249 九、發明說明 【發明所屬之技術領域】 本發明是有關於-種電源轉換器 具右餾如、门， 且付别疋有關於一港 有鎖相迴路控制功能之電源轉換器。 【先前技術】 隨著科技的發展及生活水準古^ 常生活中不可缺少的基本成為人類曰 蓬勃發展、來由於㈣各種產業的 疋初知展、商業活動的頻蘩 用雷“ 負繁以及居豕生活品質的提高，照明 :也與曰俱增’使得合乎高效率 '舒適、安全、高㈣ 應之照明系統的開發也漸漸傷 ^" 統中’皆需使用安定器來工作在大多數的照明% 合在：Π知的安定器為定頻操作，且其操作頻率的設定都 二率f &(燈官)開路諧振頻率點附近’如第1圖所示。操作 壓頁率近電壓增益值極大，可提供燈管啟動所需的高電 官點亮後輸出電壓增益降低’供給燈管穩態操作電壓。 然而，此習知之定頻操作之安定器具有下列缺點。首先， 2於燈管貞載端與賴電路大小之參數變動會造成職頻率 <…菱動因此，女定器定頻操作的方式會導致燈管功率不 土疋1並會使燈管電流間差異變大。其次，穩態後，燈管操 作頻率fswitch無法追隨穩態諧振頻率，以致於操作頻率 s低於谐振頻率，會造成功率損耗。再者，穩態時無法 才木作在7振電路之輸出最大電壓增益點，當需要較高的燈管 輸出電壓日寸’只能藉由改變諧振電路之輸入電壓來提高，或 1275249 重新設什谐振電路 【發明内容】 因此，本發明的目的就θ 功能之電源轉換器，對於吩疋挺供一種具有鎖相迴路控帝1 高的錢度，可降㈣路元件參數大小之誤差有輕 本發明的另一目的就是在接 能之電源轉換器，藉由瓖，'、一種具有鎖相迴路控制功 電路呈現電阻性負載，可夂你本 、丰 了使括振 本發明的又一目的就I在:功的消耗，進而達到高效率。 能之電源轉換器，只要二=一種具有鎖相迴路控㈣ _，使用電流調整電路°:就:::可二到高輸出/輸入電 ^ 就…、舄擔心輸出電壓過高的問 =:再一目的就是在提供一種具有鎖相迴路控制功 -之電源轉換器’使用一升壓變壓器，可將輸入電壓升壓， 故可使用需高電壓之負載。 本毛明@又再-目的就是在提供一種具有鎖相迴路控制 功能之電源轉換器，升壓變壓器具有一輔助繞組，可用來偵 測變壓器漏感上的電壓相位。 、 根據本發明之上述目的，提出一種具有鎖相迴路控制功 能之電源轉換器’至少包括一負載、一半橋轉換器、—相位 偵測裝置、一電流迴授裝置、一電流調整電路以及—鎖相控 制電路。半橋轉換器至少包括一電源、複數個開關、—半ς 驅動電路、一升壓變壓器以及一諧振電路。電源用以提供一 1275249 入電壓’上述之開關電性連接此電源。半橋驅動 二:連接上述之開關，用以控制這些開關的切換頻率。 升壓變壓器用以將穩定直流輸入電壓升壓。諧振電路電性連 接升壓變壓器，用以接收升壓後之電壓。 相位偵測裝置分別電性連接半橋轉換器中的兩特定點， 電流迴授裝置則電性連接此負載，用則貞測負載之電流。電 =調整電路電性連接電流迴授裝置，用以接收負載之電流迴 授汛號’擷取負載之電流迴授訊號做調整。鎖相控制電路則 電性連接f流調整電路與相位偵測裝置。其中，鎖相控制電 路I經由相位偵測裝置與電流調整電路，接收並整合半橋轉 換器上兩特定點之電壓訊號與電流調整電路所輸出之一電赢 訊號，並輸出一頻率訊號至半橋驅動電路，控制開關之切2 頻率，以進行相位鎖定，進而提供負載穩定的電流。 、 依A?、本發明之較佳實施例，升壓變壓器至少包括一一次 側繞組、一第一電感、一二次側繞組、一第二電感以及一輔 助繞組，第一電感與一次側繞組電性連接，第二電感與二次 側繞組電性連接，輔助繞組係用以偵測升壓變壓器漏電感電 壓吼唬。半橋轉換器至少包括一比較器電性連接輔助繞組， 以量測升壓變壓器之電壓訊號。本發明較佳實施例更至少包 括一均流網路電性連接於諧振電路與負載之間，以使負載輸 出電流一致。負載可為單支或複數支燈管，且燈管例如可以 為冷陰極螢光燈（CCFL)、線型螢光燈（LFL)、陰極螢光燈 (CFL)、發光二極體（LED)、氙氣燈（HID)或有機發光二極體 (OLED)。此外，電流迴授裝置更可電性連接上述負載之其中 1275249 之一者，以偵測負載之其中之該者之電流。 依照本發明之較佳實施例，鎖相控制電路具有一相位比 較器後端依序接設一低通隸器以及一電壓控制震I器，且 相位比較器與相位偵測裝置電性相連，用以輸入相位偵測裝 置所偵測之半橋轉換器上兩特定點之電壓訊號作相位鎖定， 並經由電壓控制震盪器輸出頻率訊號至半橋驅動電路，以提 供負載穩定的電流。此外，電流調整電路電性連接鎖相控制 電路之電壓控制震盪器，藉由電流調整電路所擷取之負載之 電流訊號與-參考電流比較，並將結果輸出至電壓控制震盈 器，供電壓控制震盪器輸出頻率訊號至半橋驅動電路。 依照本發明之較佳實施例，兩特定點之其中之一可電祕 連接第-開關之閘極端、第二開關之汲極端或閘極端、或電 性連接於鎖相控制電路與半橋驅動電路之間，而另一特定點 則可量測升壓變壓器之一第一電感或一第二電感之電壓，第 一電感之另一端電性連接升壓變壓器之一一次側繞組，第二 電感之另一端電性連接升壓變壓器之一二次側繞組。兩特定 點之電壓相位差為90度。上述之電源轉換器為一電子式安定 器。 根據本發明之上述目的，提出一種具有鎖相迴路控制功 月b之電源轉換器，至少包括一負載、一半橋轉換器、一相位 偵測裝置、一電流迴授裝置、一電流調整電路以及一鎖相控 制電路。半橋轉換器至少包括一電源、複數個開關、一半橋 驅動電路以及一升壓變壓器。電源用以提供一穩定直流輸入 電壓’上述之開關電性連接此電源。半橋驅動電路電性連接 1275249 上述之開關，用以控制這些開關的切換頻率。升麼變壓器用 以將穩定直流輸入電壓升壓。 相位賴測裝置分別電性連接半橋轉換器中的兩特定點， 電流迴授裝置則電性連接此負载，用以偵測負載之電流’。電 流調整電路電性連接電流迴授裝置，用以接收負载之電流迴 授訊號，擷取負載之電流迴授訊號做調整。鎖相控制電路則 電性連接電流調整電路與相位偵測裝置。其中，鎖相控制電 y、工由相幻貞》則裝置與電流言周整電路，接收並整合半橋轉 換器上兩特定點之電壓訊號與電流調整電路所輸出之一=流 ’並輸出-頻率訊號至半橋駆動電路，控制開關之切換 頻率，以進行相位鎖^，進而提供負載穩定的電流。 ：: 佤Μ本發明之較佳實施例 第二二極體、一第一電感以及一第 括一第一二極體 谷，第一二極體與第二二極體分別電性連接升壓變壓器之 二次側繞組之兩側，以進行整流，第-電感電性連接第一 極，'第二二極體以及負載’以進行濾波，第_電容電性 接第-電感與負載，以進行穩壓。此外，在本發明之其他 施例中’電源轉換器可至少包括一第一二極體、一第二二 體以及帛一電容’第一二極體與第二二極體分別電性連 升壓變壓器之一二次側繞組之兩你卜以進行整流， 電f生連接第—二極體1二二極體以及負m，以進行穩壓( 依照本發明之較佳實施例，半橋轉換器至少包括一比 :電[生連接升壓變壓器之一輔助繞組，以量測升壓變壓器 電壓訊號。鎖相控制電路具有-相位比較it後端依序接: 1275249 慮波☆以及—電壓控制震i器，且相位比較器與相位债 =裝置電性相連，用以輸入相位偵測裝置所偵測之半橋轉換 π — >特疋點之電壓訊號作相位鎖定，並經由電壓控制震盪 器輸出頻率訊號至半橋驅動電路，以提供負載穩定的電流。 ^卜〜電〃IL凋整電路電性連接鎖相控制電路之電壓控制震盪 器藉由電流調整電路所擷取之負載之電流訊號與一參考電1275249 IX. Description of the Invention [Technical Fields of the Invention] The present invention relates to a power converter having a right-hand side, a door, and a power converter having a phase-locked loop control function in a port. [Prior Art] With the development of science and technology and the standard of living in the ancient life, the indispensable basics of human beings have become a flourishing development of human beings, and because of (4) the initial exhibitions of various industries, the frequent use of commercial activities,豕Enhanced quality of life, lighting: also increase with the 'enhanced high efficiency' comfort, safety, high (four) should be the development of the lighting system is gradually hurt ^ " Tongzhong 'all need to use the ballast to work in most The illumination % is combined: the known ballast is fixed frequency operation, and its operating frequency is set to the second rate f & (light official) open circuit resonance frequency point as shown in Figure 1. The operation page rate is near The voltage gain value is extremely large, which can provide the high voltage output of the lamp after the lamp is turned on. The output voltage gain is reduced. The steady-state operating voltage of the lamp is supplied. However, the conventional fixed-frequency ballast has the following disadvantages. First, 2 The change of the parameters of the size of the lamp and the size of the circuit will cause the service frequency <...the rhythm. Therefore, the way of the fixed frequency operation of the female device will result in the lamp power not being 1 and the difference between the lamp currents will be changed. Big. Second After steady state, the lamp operating frequency fswitch cannot follow the steady-state resonant frequency, so that the operating frequency s is lower than the resonant frequency, which will cause power loss. Moreover, the maximum voltage gain of the output of the 7-vibration circuit cannot be achieved at steady state. Point, when a higher lamp output voltage is required, 'can only be improved by changing the input voltage of the resonant circuit, or 1275249 resetting the resonant circuit. [Inventive] Therefore, the object of the present invention is to convert the power of the θ function. For the commander, there is a kind of money with a phase-locked loop control, which can reduce the error of the (four)-channel component parameter size. The other purpose of the invention is to connect the power converter, by means of ', a circuit with a phase-locked loop control circuit presents a resistive load, which can be used for your own, and the other is to make the vibration of the invention. The other purpose of the invention is: the consumption of power, and thus the high efficiency. As long as two = one with phase-locked loop control (four) _, use current adjustment circuit °: on ::: can be two to high output / input power ^ on ..., 舄 worry about the output voltage is too high =: Another purpose is to mention A power converter with a phase-locked loop control function uses a step-up transformer to boost the input voltage, so that a load requiring a high voltage can be used. The present invention is again provided with a phase lock. The power converter of the loop control function, the step-up transformer has an auxiliary winding, which can be used to detect the voltage phase on the leakage inductance of the transformer. According to the above object of the present invention, a power converter having a phase-locked loop control function is provided. The utility model comprises a load, a half bridge converter, a phase detecting device, a current feedback device, a current adjusting circuit and a phase lock control circuit. The half bridge converter comprises at least one power source, a plurality of switches, and a half turn driving circuit. , a step-up transformer and a resonant circuit. The power supply is used to provide a 1275249 input voltage. The above switch is electrically connected to the power supply. Half-bridge drive 2: Connect the above switches to control the switching frequency of these switches. A step-up transformer is used to boost the regulated DC input voltage. The resonant circuit is electrically connected to the step-up transformer for receiving the boosted voltage. The phase detecting device is electrically connected to two specific points in the half bridge converter, and the current feedback device is electrically connected to the load, and the current of the load is measured. The electric=adjustment circuit is electrically connected to the current feedback device to receive the current feedback 汛 of the load, and the current feedback signal of the load is adjusted. The phase lock control circuit is electrically connected to the f flow adjustment circuit and the phase detecting device. The phase-locked control circuit I receives and integrates one of the voltage signals of the specific points on the half-bridge converter and the current adjustment circuit to output an electric win signal via the phase detecting device and the current adjusting circuit, and outputs a frequency signal to the half. The bridge drive circuit controls the switching frequency of the switch to phase lock, thereby providing a load-stable current. According to a preferred embodiment of the present invention, the step-up transformer includes at least a primary side winding, a first inductor, a secondary side winding, a second inductor, and an auxiliary winding, the first inductor and the primary side. The winding is electrically connected, the second inductor is electrically connected to the secondary winding, and the auxiliary winding is used to detect the leakage inductance voltage of the step-up transformer. The half bridge converter includes at least one comparator electrically connected to the auxiliary winding to measure the voltage signal of the step-up transformer. The preferred embodiment of the present invention further includes at least a current sharing network electrically connected between the resonant circuit and the load to make the load output currents uniform. The load may be a single or multiple lamps, and the lamps may be, for example, a cold cathode fluorescent lamp (CCFL), a linear fluorescent lamp (LFL), a cathode fluorescent lamp (CFL), a light emitting diode (LED), Xenon lamp (HID) or organic light emitting diode (OLED). In addition, the current feedback device can be electrically connected to one of the 1275249 of the load to detect the current of the load. According to a preferred embodiment of the present invention, the phase lock control circuit has a phase comparator rear end sequentially connected to a low pass device and a voltage control oscillator, and the phase comparator is electrically connected to the phase detecting device. The voltage signal for inputting two specific points on the half-bridge converter detected by the phase detecting device is phase-locked, and the frequency signal is output to the half-bridge driving circuit via the voltage-controlled oscillator to provide a load-stable current. In addition, the current adjustment circuit is electrically connected to the voltage control oscillator of the phase lock control circuit, and the current signal of the load drawn by the current adjustment circuit is compared with the reference current, and the result is output to the voltage control oscillator, and the voltage is supplied. Control the oscillator output frequency signal to the half bridge drive circuit. According to a preferred embodiment of the present invention, one of the two specific points can be electrically connected to the gate terminal of the first switch, the 汲 terminal or the gate terminal of the second switch, or electrically connected to the phase lock control circuit and the half bridge drive. Between the circuits, another specific point can measure the voltage of one of the first inductor or the second inductor of the step-up transformer, and the other end of the first inductor is electrically connected to one of the primary windings of the step-up transformer, and second The other end of the inductor is electrically connected to one of the secondary windings of the step-up transformer. The voltage phase difference between the two specific points is 90 degrees. The power converter described above is an electronic ballast. According to the above object of the present invention, a power converter having a phase locked loop control power month b is provided, comprising at least a load, a half bridge converter, a phase detecting device, a current feedback device, a current adjusting circuit and a Phase lock control circuit. The half bridge converter includes at least one power source, a plurality of switches, a half bridge drive circuit, and a step-up transformer. The power supply is used to provide a stable DC input voltage. The above switch is electrically connected to the power supply. Half-bridge drive circuit is electrically connected 1275249 The above switches are used to control the switching frequency of these switches. The transformer is used to boost the regulated DC input voltage. The phase sensing device is electrically connected to two specific points in the half bridge converter, and the current feedback device is electrically connected to the load to detect the current of the load. The current adjustment circuit is electrically connected to the current feedback device for receiving the current feedback signal of the load, and extracting the current feedback signal of the load for adjustment. The phase lock control circuit is electrically connected to the current adjustment circuit and the phase detection device. Wherein, the phase-locked control power y, the work phase is illusory, and the device and the current circuit are integrated, and the voltage signal and the current adjustment circuit output of the two specific points on the half-bridge converter are received and integrated and output - The frequency signal to the half-bridge sway circuit controls the switching frequency of the switch to perform phase lock, thereby providing a load-stable current. According to a preferred embodiment of the present invention, the second diode, the first inductor, and the first diode of the first diode are electrically connected to the first diode and the second diode. The two sides of the secondary winding of the transformer are rectified, the first inductor is electrically connected to the first pole, the 'second diode and the load' are filtered, and the first capacitor is electrically connected to the first inductor and the load to Regulate. In addition, in other embodiments of the present invention, the power converter may include at least a first diode, a second diode, and a first capacitor. The first diode and the second diode are respectively electrically connected. One of the secondary windings of the piezoelectric transformer is rectified, and the second diode and the negative m are connected to perform voltage regulation (in accordance with a preferred embodiment of the present invention, the half bridge) The converter includes at least one ratio: an auxiliary winding of one of the [connected step-up transformers to measure the voltage of the step-up transformer. The phase-locked control circuit has a phase comparison. The back end is sequentially connected: 1275249 yaw ☆ and - voltage Controlling the oscillator, and the phase comparator is electrically connected to the phase debt=device for inputting the half-bridge conversion detected by the phase detecting device, and the voltage signal of the characteristic point is phase-locked, and is controlled by voltage The oscillator outputs a frequency signal to the half-bridge drive circuit to provide a load-stable current. The power of the voltage-controlled oscillator of the phase-locked control circuit is electrically connected to the voltage of the phase-locked control circuit. Current signal and one parameter Electricity
並將結果輸出至電壓控制震盪器，供電壓控制震盪 器輸出頻率訊號至半橋驅動電路，以控制開關的切換。 依照本發明之較佳實施例，兩特定點之其中之一可電性 連接第一開關之閘極端、第二開關之汲極端或閘極端、或電 性連接於鎖相控制電路與半橋驅動電路之間，而另一特定滋 則可ΐ測升壓變壓器之一第一電感之電壓，第一電感之另一 端電性連接升壓變壓器之一一次側繞組。兩特定點之電壓相 位差為90度。上述之電源轉換器為一轉換器（c〇nverter)架構。 根據本發明之上述目的，提出一種具有鎖相迴路控制功 能之電源轉換器，至少包括一負載、一半橋轉換器、一均流 網路、一相位偵測裝置、一電流迴授裝置、一電流調整電路 以及一鎖相控制電路。半橋轉換器至少包括一電源、複數個 開關、一半橋驅動電路、一升壓變壓器、一比較器以及一諧 振電路。電源用以提供一穩定直流輸入電壓，上述之開關電 性連接此電源。半橋驅動電路電性連接上述之開關，用以控 制這些開關的切換頻率。升壓變壓器用以將穩定直流輸入電 壓升壓。升壓變壓器至少包括--次側繞組、一第一電感 第一電感與一 次側繞組、一第二電感以及一輔助繞組 10 1275249 人側’二、’且電|±連接’第二電感與二次侧繞組電性連接，輔助 繞組係用以偵測升壓變壓器漏電感電壓訊號。比較哭電性連 接辅助繞組：以量測升壓變壓器之電壓訊號。而諧振電路電 f生連接升壓器’用以接收升壓後之電·。 路電性連接於諸振電路與負載之間，以使負載輸出電流—致 、相位㈣裝置分職性連接半橋轉換以的兩特定點， =流迴《置料性連接此貞載，心㈣ ::;電：電性連接電流迴授裝置，用以接收負載之電流： :n取負載之電流迴授訊號做調整。鎖 ^性連接電流調整電路與相到貞測裝置。其中，鎖相控制i 路可經由相位偵測驻罢漁+ 士 ^ 拖哭μ + μ〜、、、置/、電^調整電路，接收並整合半橋轉 訊號，並輸出一頻㈣整電路所輸出之-電流 頻革以心相位較，進而提供負載穩定的電流。 依知本發明之較佳實施例’負載可為 官例如可以為冷陰極營光燈 :且4 光二極體、氙氣燈或有機發光 ：*亟光垃、發 更可電性連接上述負載之^= 此外’電流迴授裝置 該者之電流。”中之一者，以積測負載之其中之 依照本發明之較佳實施例 較器後端依序接設一低通、、唐、、卜 乜制電路具有-相位比 相位比t 4 - ‘波态以及一電壓控制震盪器，且 邳位比較裔與相位偵測裝 且 置所伯測之半橋轉換器上兩二生連φ用以輸入相位崎 並經由電塵控制震盈器輪出點：電麼訊號作相位鎖定， 、率λ號至半橋驅動電路，以提 1275249 相控制 負載之 制震盪 > 可電性 、或電 特定點 壓，第 ，第二 兩特定 式安定 供負載穩定的電流。此外’電流調整電路電性 電路之電壓控制震盈器，藉由電流調整電路所擷= 電流訊號與-參考電流比較，並將結果輪出至電壓控 器，供電壓控制震盈器輸出頻率訊號至半橋驅動電^ 依照本發明之較佳實施例，兩特定點之其中之— 連接第一開關之閘極端、第二開關之汲極端或閘極端 性連接於鎖相控制電路與半橋驅動電路之間，而另_ 則可量測升壓變壓器之一第一電感或一第^電感之電 一電感之另一端電性連接升壓變壓器之一一次側繞組 電感之另一端電性連接升壓變壓器之一二次側繞組。 點之電壓相位差為90度。上述之電源轉換器為一電子 器。 【實施方式】 為了使本發明之敘述更加詳盡與完備，可參照下列描述 並配合第2圖至第10圖之圖示。 本發明之具有鎖相迴路控制功能之電源轉換器可適用於 電子安定器（屬於一反相器（inverter)架構）與轉換器（屬於一轉 換器（Converter)架構）。以下先說明本發明之具有鎖相迴路控 制功能之電源轉換器於電子安定器上之應用。 請參考第2圖’第2圖係繪示本發明具有鎖相迴路控制 功能之電源轉換器使用於電子安定器之電路示意圖。此種電 子式安定器至少包括一負載202、一半橋轉換器、一相位偵測 裝置204、一電流迴授裝置206、一電流調整電路208 ' —鎖 12 1275249 相控制電路210以及一均流網路212，其中，負載2〇2例如可 以為燈管’且例如可以為冷陰極螢光燈、線型榮光燈、陰極 螢光垃發光一極體、氙氣燈、有機發光二極體等燈管等效 電阻變動範圍小及大的燈管。而均流網流212係 之輸出電流一致。 、戰 半橋轉換器至少包括一電源214、一組開關216、一半橋 驅動電路218、-升壓變壓器22()、一諸振電路222以及一比 較器224。電源214用以提供一穩定直流輸入電塵。開關216 電性連接電源214,且開關216受半橋驅動電路218控制1 振電！，由一第一電容一及-第二電容cs所組成 升堡、交壓裔220至少句括,一 主^包括弟一電感Lp、一第二電感Ls、三 ^欠側，組以及-二次側繞組，[電感與—次側繞組電性 、妾，弟二電感與二次側繞組電性連接。另夕卜，除了 一次側 ::與二次側繞組外’升壓變壓ρ 22〇更於同一鐵心額外加 ::繞組，以量測升壓變壓器220之電壓訊號。比較器μ 第=„„器22。之一第—特定點a，以量 二特疋點a之電壓相位。例如在本發明之較佳實施例中， L ^ 224可以量測升壓變壓器22()之第—電感 電壓相 位 VLp 〇 =到貞測裝置2G4分別電性連接比較器224與半橋轉換 i電爆特定點b，-以量測第—特^“與S二特定w 13 1275249 電流迴授裝置206電性連接負載202，用以偵測負載202 之電流。在本發明之較佳實施例中，電流迴授裝置206係偵 測負載202内之一第一燈管之電流。電流調整電路208則電 性連接電流迴授裝置206，用以接收負載202之電流迴授訊 號’擷取電流的迴授訊號做調整。 鎖相控制電路2 1 0電性連接電流調整電路208與相位偵 測裝置204，鎖相控制電路2丨〇具有一相位比較器226後端依 序接設一低通濾波器228以及一電壓控制震盪器230。相位比 較器226與相位偵測裝置2〇4電性相連，用以輸入相位偵測 裝置204所偵測到的第一特定點&與第二特定點b之電壓相 位’以作、相位鎖定，並經由電壓控制震盪器230輸出一方i 頻率訊號至半橋驅動電路2丨8，調整開關2丨6的切換頻率，以 提供負載202穩定的電流。 以下將進一步說明本發明之鎖相控制電路所使用之雙^ 追蹤谐振頻率之功能。首先，觀察半橋轉換器中的電壓電流 相位，假设選定半橋轉換器内第一特定點a與第二特定點b 的相位並鎖定在0度，亦即負載2〇2從啟動至穩態時，&與匕 兩點的相位都維持z a/b = e的關係式。當電路穩態時，&與匕 兩相位被固定在θ度，經由鎖相控制電路2 1 0便會產生一對 應的切換頻率（fsw)給開關216作切換，即穩態不之^、頻率 為此時所對應之電壓增益的大小應為負載202穩態所需 :電壓增益。接著，再利用上述關係式設計半橋轉換器中之 諧振電路222内之元件參數。接著，觀察諧振頻率下的z 访ί 0 莫 w 田 、 /、 $，此差異量越小越好。而當Z a/b與Θ之差異量 14 1275249 :、：令即達到鎖相追縱諸振頻率之功能。本發明之鎖相控 制電路可達到操作頻率追蹤諧振頻率之效果，當鎖相追頻 =1即可達到電壓增益之最大值與電阻性之負載。而當操作 ^ 自振點上或疋電感性越接近諸振點時，不僅可以避免 過多的虛功消耗，對於諧振電路所產生的電壓增益也能作更 有效的利用。 然而，在實際電路設計過程中，為避免諧振參數之誤差 造成=出/輸入電壓增益之不足，通常會將輸出/輸入電壓增益 =小設計的比原本所需之電壓增益還高。而當有過高的電壓 ^益時，-便可利用電流迴授裝置206與電流調整電路2〇8之 二制架構來限制電壓之增益。在本發明之較佳實施例中，竜 流迴授裝置206與電流調整電路操取負載2〇2電流之迴 授：並在電流調整電路·中與所需之負載電流作比較。當 j授電流大於所需之電流量時，電流調整電路2〇8便會送出 =電位給電性相連之電壓控制震盈ϋ 230,驅使電壓控制震 盪益230达出之方波頻率提高。電壓控制震盪器送出之 方波頻率提高即提高開_ 216的切換頻率，可達到降低電壓 增盈之效果。藉由這樣的方式，使鎖相控制電路經由相 位摘測褒i 204與電流調整電肖，接收並整合半橋轉換器 ^兩特定點之電屡訊號與電流調整電㉟2Q8所輸出之電流訊 號’以輸出-頻率訊號至半橋驅動電路218，以進行相位鎖丨 定，可讓負載202有過電流保護，並且維持穩定電流之效果。 因此，本發明之一特徵就是，本發明之具有鎖相迴路控 制功能之電源轉換器可藉由相位偵測裳置綱來測量半橋轉 15 1275249 換器中之第—特定點a與第二特定點b之電壓相位，再經由 鎖相控制電路210來鎖定’並輸出一方波頻率訊號至半橋轉 換器’提供負m 202穩定的弦波電流，同時，藉由電流調整 電路208接收電流迴授裝置2〇6所擷取之負載2〇2迴授訊號， 供鎖相控制電路210作定輸出電流控制，來 °〜 幅度，維持負載202電流的大小。 1曰皿的 接著’請參考第3圖’第3圖係料本發明具有鎖相迴 路控制功能之電源轉換器使用於電子安定器之另一電路示意 圖。與第2圖不同的地方在於’第2圖中之第二特定點匕： 位於開關S2之汲極端，所量測到的電壓為Vds2,而第3圖中 之第二特定點b係位於開關S2之閘極端，所量測到的電壓$The result is output to a voltage controlled oscillator for the voltage controlled oscillator output frequency signal to the half bridge drive circuit to control the switching of the switch. According to a preferred embodiment of the present invention, one of the two specific points can be electrically connected to the gate terminal of the first switch, the 汲 terminal or the gate terminal of the second switch, or electrically connected to the phase lock control circuit and the half bridge drive. Between the circuits, another specific stimuli can measure the voltage of the first inductor of one of the step-up transformers, and the other end of the first inductor is electrically connected to one of the primary windings of the step-up transformer. The voltage phase difference between the two specific points is 90 degrees. The power converter described above is a converter (c〇nverter) architecture. According to the above object of the present invention, a power converter having a phase locked loop control function includes at least a load, a half bridge converter, a current sharing network, a phase detecting device, a current feedback device, and a current The adjustment circuit and a phase lock control circuit. The half bridge converter includes at least one power source, a plurality of switches, a half bridge drive circuit, a step-up transformer, a comparator, and a resonance circuit. The power supply is used to provide a stable DC input voltage, and the above switch is electrically connected to the power supply. The half bridge driving circuit is electrically connected to the above switches to control the switching frequency of the switches. The step-up transformer is used to boost the regulated DC input voltage. The step-up transformer includes at least a secondary winding, a first inductance first inductance and a primary winding, a second inductance, and an auxiliary winding 10 1275249 human side 'two,' and electric |± connection 'second inductance and two The secondary winding is electrically connected, and the auxiliary winding is used to detect the leakage inductance voltage signal of the step-up transformer. Compare the crying electrical connection auxiliary winding: to measure the voltage signal of the step-up transformer. The resonant circuit is electrically connected to the booster ’ for receiving the boosted power. The circuit is electrically connected between the vibration circuit and the load, so that the load output current-phase, phase (four) device is connected to the two specific points of the half-bridge conversion, and the flow returns to the "feeding connection". (4) :: Electricity: Electrically connected current feedback device to receive the load current: :n Take the load current feedback signal to make adjustment. The lock is connected to the current adjustment circuit and the phase to the detecting device. Among them, the phase-locked control i-channel can be used to receive and integrate the half-bridge trans-signal, and output the one-frequency (four) whole circuit through the phase detection station fishing + shi ^ drag crying μ + μ ~, , , / / electric adjustment circuit The output-current is frequency-phased to provide a load-stable current. According to a preferred embodiment of the present invention, the load can be, for example, a cold cathode camping lamp: and a 4-light diode, a xenon lamp or an organic light-emitting device: * a light-emitting, a light-chargeable connection to the above load ^ = In addition, the current of the current feedback device is the current. According to one embodiment of the present invention, in accordance with a preferred embodiment of the present invention, a low-pass, Tang, and dip circuit is sequentially connected to the rear end of the device, and the phase-to-phase ratio t 4 - 'wave state and a voltage-controlled oscillator, and the two-phase φ of the half-bridge converter of the phase-detecting device and the phase-detecting device are used to input the phase and control the shock wheel through the electric dust. Out point: electric signal for phase locking, rate λ to half bridge drive circuit, to improve the voltage of 1275249 phase control load> electrical, or electrical specific point pressure, the second, two specific stability The load is stable. In addition, the voltage control of the current circuit of the current adjustment circuit is controlled by the current adjustment circuit. The current signal is compared with the reference current, and the result is turned to the voltage controller for voltage control. In accordance with a preferred embodiment of the present invention, one of two specific points - connecting the gate terminal of the first switch, the terminal of the second switch, or the terminal is connected to the phase lock control Circuit and half bridge drive Between the roads, and another _ can measure one of the first inductor of the step-up transformer or the other end of the electric inductor of one of the inductors is electrically connected to one end of the one-side winding inductor of the step-up transformer One of the secondary windings of the step-up transformer. The voltage phase difference of the point is 90 degrees. The above-mentioned power converter is an electronic device. [Embodiment] In order to make the description of the present invention more detailed and complete, the following description can be referred to and cooperated. 2 to 10. The power converter with the phase locked loop control function of the present invention can be applied to an electronic ballast (belonging to an inverter architecture) and a converter (belonging to a converter ( Converter). The following is a description of the application of the power converter with the phase-locked loop control function of the present invention to the electronic ballast. Please refer to FIG. 2'. FIG. 2 shows the phase-locked loop control function of the present invention. The power converter is used in a circuit diagram of an electronic ballast. The electronic ballast includes at least a load 202, a half bridge converter, a phase detecting device 204, and a current feedback device 206. A current adjustment circuit 208 ′ — lock 12 1275249 phase control circuit 210 and a current sharing network 212 , wherein the load 2 〇 2 can be, for example, a lamp tube ′ and can be, for example, a cold cathode fluorescent lamp, a line glory lamp, a cathode fluorescing lamp The light-emitting light-emitting one-pole body, the xenon lamp, the organic light-emitting diode, and the like have a small range of equivalent resistance variation and a large lamp tube, and the output current of the current-sharing network stream 212 system is uniform. The war half-bridge converter includes at least A power supply 214, a set of switches 216, a half bridge drive circuit 218, a step-up transformer 22 (), a vibration circuit 222 and a comparator 224. The power supply 214 is used to provide a stable DC input dust. The power supply 214 is connected, and the switch 216 is controlled by the half bridge drive circuit 218 1 to vibrate! , consisting of a first capacitor and a second capacitor cs, the bust 220 is at least a sentence, a master ^ including a brother Lp, a second inductor Ls, three ^ underside, group and - two The secondary winding, [inductance and - secondary winding electrical, 妾, the second inductance and the secondary winding electrical connection. In addition, in addition to the primary side :: and the secondary side winding, the step-up voltage ρ 22 〇 is added to the same core to add a :: winding to measure the voltage signal of the step-up transformer 220. Comparator μ = -22. One of the first-specific points a, the voltage phase of the second special point a. For example, in the preferred embodiment of the present invention, L^224 can measure the first-inductor voltage phase VLp 〇 of the step-up transformer 22() to the detecting device 2G4, which is electrically connected to the comparator 224 and the half-bridge to convert the electrical Exploding a specific point b, in order to measure the current-loading device 202, is electrically connected to the S-specific W 13 1275249 current feedback device 206 for detecting the current of the load 202. In a preferred embodiment of the invention The current feedback device 206 detects the current of one of the first lamps in the load 202. The current adjustment circuit 208 is electrically connected to the current feedback device 206 for receiving the current feedback signal of the load 202. The feedback signal is adjusted. The phase lock control circuit 2 10 is electrically connected to the current adjustment circuit 208 and the phase detection device 204, and the phase lock control circuit 2 has a phase comparator 226, and a low-pass filter is sequentially connected to the back end of the phase comparator 226. The device 228 and a voltage control oscillator 230. The phase comparator 226 is electrically connected to the phase detecting device 2〇4 for inputting the first specific point & and the second specific point detected by the phase detecting device 204. The voltage phase of b is 'phased, phase locked, and The voltage control oscillator 230 outputs a frequency signal to the half bridge drive circuit 2丨8, and adjusts the switching frequency of the switch 2丨6 to provide a stable current of the load 202. The following uses the phase lock control circuit of the present invention to further illustrate Double ^ Tracking the function of the resonant frequency. First, observe the phase of the voltage and current in the half-bridge converter, assuming that the phase of the first specific point a and the second specific point b in the selected half-bridge converter is locked at 0 degrees, that is, the load 2〇2 From start-up to steady state, the phase of both & and 匕 maintains the relationship of za/b = e. When the circuit is steady, the two phases of & and 匕 are fixed at θ degrees, via phase lock The control circuit 2 1 0 will generate a corresponding switching frequency (fsw) to switch the switch 216, that is, the steady state is not ^, the frequency is the corresponding voltage gain at this time should be the steady state of the load 202: voltage Gain. Then, the above parameters are used to design the component parameters in the resonant circuit 222 in the half-bridge converter. Then, observe z at the resonant frequency, and then the difference is as small as possible. And when Z a / b and Θ difference 14 1 275249 :, : The function of locking the frequency of the resonant frequency is achieved. The phase-locked control circuit of the invention can achieve the effect of tracking the resonant frequency at the operating frequency, and the maximum value of the voltage gain can be achieved when the phase-locked frequency is set to 1 Resistive load, and when the operation is at the natural point or the inductance is closer to the vibration points, not only can excessive virtual power consumption be avoided, but also the voltage gain generated by the resonant circuit can be more effectively utilized. In the actual circuit design process, in order to avoid the error of the resonance parameter, the output/input voltage gain is insufficient, and the output/input voltage gain=small design is higher than the originally required voltage gain. When there is excessive voltage, the current feedback device 206 and the current regulating circuit 2〇8 can be used to limit the gain of the voltage. In a preferred embodiment of the invention, the turbulent feedback device 206 and the current regulating circuit operate to retrieve the current of the load 2 〇 2 and compare it with the desired load current in the current regulating circuit. When the current is greater than the required current, the current adjustment circuit 2〇8 will send a = potential to the voltage-connected voltage control ϋ 230, which drives the voltage control oscillation 230 to increase the square wave frequency. The square wave frequency sent by the voltage controlled oscillator increases the switching frequency of the open 216, which can reduce the effect of voltage gain. In this way, the phase-locked control circuit receives and integrates the current signal of the two-point converter and the current signal of the current-regulating circuit 352Q8 via the phase-sampling 褒i 204 and the current-regulating circuit. The output-frequency signal is applied to the half-bridge drive circuit 218 for phase lock stabilization, which allows the load 202 to have overcurrent protection and maintain a stable current effect. Therefore, a feature of the present invention is that the power converter with the phase-locked loop control function of the present invention can measure the first-specific point a and the second of the half-bridge 15 1575249 converter by the phase detection skirting program. The voltage phase of the specific point b is further locked by the phase lock control circuit 210 and outputs a square wave frequency signal to the half bridge converter to provide a negative m 202 stable sine wave current, and at the same time, the current adjustment circuit 208 receives the current back. The load 2〇2 feedback signal captured by the device 2〇6 is used for the phase-locked control circuit 210 to determine the output current control, to maintain the magnitude of the current of the load 202. Next, please refer to Fig. 3, Fig. 3, which is a schematic diagram of another circuit of the power converter of the present invention having a phase-locked loop control function for use in an electronic ballast. The difference from Fig. 2 lies in the second specific point in Fig. 2: at the 汲 extreme of switch S2, the measured voltage is Vds2, and the second specific point b in Fig. 3 is at the switch S2 gate extreme, measured voltage $
Vc^2 ’其中，VDS2與VGS2之相位相反。此外，在本發明之其 :貝把例中’第：特定點b亦可位於鎖相控制電路與半橋驅 電路之間(如第4圖所示)’或可位於開關S1之閘極端(如第 5圖所示）。 、接下來叫參考第6圖，第6圖係緣示本發明具有鎖相 :路控制功能之電源轉換器使用於電子安定器之又一電路示 意圖。與第2圖不同的地方在於，第2圖中之電流迴授裝置 係電性連接負載中之第一燈管，以谓測第一燈管之電流，而 第6圖中之電流迴授裝置係電性連接負載中之第二燈管，以 谓測第二燈管之電流。此外，在本發明之其他實施例中，電 流迴授裝置亦可電性連接負載中之二燈管，以偵測二燈管之 電流（如第7圖所示）。 …、:後μ參考第8圖’第8圖係綠示本發明具有鎖相迴 16 1275249 路控制功能之電源轉換器使用於電子 a。 圖。與第2圖不同的地方在於，第2囝中 電路示思 量測第一電感Lp之電壓相位yLp，而第之第特定點a係 a係量測第二電感Ls之電壓相位vu。 弟一特定點Vc^2' where VDS2 is opposite to VGS2. In addition, in the present invention, the first: the specific point b may also be located between the phase-locked control circuit and the half-bridge circuit (as shown in FIG. 4) or may be located at the gate terminal of the switch S1 ( As shown in Figure 5). Referring now to Fig. 6, FIG. 6 is a schematic diagram showing another circuit of the present invention having a phase lock: a power converter for a road control function for use in an electronic ballast. The difference from FIG. 2 is that the current feedback device in FIG. 2 is electrically connected to the first lamp in the load to measure the current of the first lamp, and the current feedback device in FIG. The second lamp in the load is electrically connected to measure the current of the second lamp. In addition, in other embodiments of the present invention, the current feedback device can also be electrically connected to two of the lamps to detect the current of the two lamps (as shown in FIG. 7). ...,: After μ, refer to Fig. 8'. Fig. 8 is a green display. The present invention has a phase-locked back 16 1675249 circuit control function for a power converter for use in electronics a. Figure. The difference from Fig. 2 is that the circuit in Fig. 2 measures the voltage phase yLp of the first inductor Lp, and the first specific point a is the voltage phase vu of the second inductor Ls. a specific point
另一方面，本發明之具有鎖 器亦可應用於轉換器上，如第9 定器不同的地方在於，轉換器刪 谐振電路’並於二次側增加一第一On the other hand, the locker of the present invention can also be applied to a converter. For example, the ninth adjuster differs in that the converter deletes the resonant circuit ’ and adds a first one to the secondary side.
一第一電感以及一第一電容，以 體與第二二極體分別電性連接升 兩側’以進行整流。第一電感電 極體以及負載，以進行濾波。而 與負載，以進行穩壓。與前述電 前述電子安定器之電路皆為直流 器（Inverter)架構，而此轉換器係 轉換器（Converter)架構。 _所示。與第 除電子安定器 極體、— 形成轉換器架 壓變壓器之一 性連接第一二 第一電容電性 子安定器之電 輸入，交流輸 直流輪入，直 能之電源轉換 2圖之電子安 之岣流網路與 第二二極體、 構。第一二極 一次側繞組之 極體、第二玉 連接第一電感 路不同的是， 出，為一反相 流輸出，為一 更甚者，可再將第9圖之電路作一 一電感删除，其電路則如第1 〇圖所示。 的是，第10圖之電路由於省略第一電感 能0 延伸’將二次側之第 與第9圖之電路不同 ’故不具有濾波之功 相似地，兩特定點之其中 極端、第二開關之汲極端或閘 電路與半橋驅動電路之間，而 器之一第一電感之電壓，第一 之可電性連接第一開關之閘 極端、或電性連接於鎖相控制 另特定點則可量測升壓變壓 電感之另一端電性連接升壓變 17 1275249 壓器之——次側繞組。 綜上所述，本發明不僅可變化第一特定點a與 ”、、占b之位置，並可改變電流迴授裝置所偵測的負載電流，' 外，在本發明之其他實施例中，亦可省略均流網路，^此 載為單燈管的應用。另一方面，本發明亦可作轉換器之鹿負… 由上述本發明較佳實施例可知，本發明之一優點f 本發明之具有鎖相迴路控制功能之電源轉換器對於 = 凡i參數大小之誤差有較高的容忍度，可降^路 之成本。 ~1件 由上述本發明較佳實施例可知，本發明之另—俱 是負載變動會影響諧振頻率變動 明::！ ::迴路控制功能之電源轉換器之操作頻率可追縱‘頻：鎖 斤以對於負載變化誤差有較高的容忍度。 ， 由上述本务明較佳實施例可知，本發明之一 ^ 是，本發明之呈右雜4 彳炎點就 从 鎖相迴路控制功能之電源轉換Μ由 作頻率追㈣振頻率，可使魏電路 ^由= 低虛功的消耗，進而達到高效率。 電阻性負載，可降 由上述本發明較佳實施例可'知 是，在本發明夕且士 w 个^ Λ之又一優點就 表月之〃、有鎖相迴路控 要設計諧振電路即可这5|丨古於山 乏冤源轉換益、中，只 建至J鬲輸出/輸入電屬辦兴 整電路，就無需擔心輸出 曰里使用電k調 询出電壓過咼的問題。 由上述本發明較隹每 是，本發明之具有鎖、t ^ ΰ 〇 ’本發明之又再一優點就 且吕開路時有極高的輸出電壓增益，足夠 18 1275249 讓燈管快速啟動。 曰由上述本發明較佳實施例可知，本發明之又再-優點就 本發明之具有鎖相迴路控制功能之電源轉換器使用 壓變壓器，可將輸人電壓升壓，故本發明可使用需高電 負載。 g由上述本發明較佳實施例可知，本發明之又再一優點就 疋’在本發明之具有鎖相迴路控制功能之電源轉換器中A first inductor and a first capacitor are electrically connected to the second diode respectively to perform rectification. The first inductive electrode body and the load are filtered. And with the load to regulate. The circuits of the aforementioned electronic ballasts are all in a converter architecture, and the converter is a converter architecture. _ shown. The electrical input of the first two first capacitive electric ballasts is connected to the first and second electronic capacitor stabilizers, the AC power transmission and the DC power input, and the direct power conversion is performed. Turbulent network and second diode, structure. The pole body of the first two-pole primary winding and the second jade are connected to the first inductor. The difference is that the output is an inverted current output. For a worse case, the circuit of FIG. 9 can be used as an inductor. Delete, the circuit is as shown in Figure 1. In the circuit of FIG. 10, since the first inductor can be omitted, 0 is extended, and the circuit of the second side is different from the circuit of FIG. 9, so that there is no filtering work, and the extreme of the two specific points, the second switch And between the extreme or gate circuit and the half-bridge driving circuit, and the voltage of the first inductor of the device is electrically connected to the gate terminal of the first switch or electrically connected to the specific phase of the phase-lock control The other end of the measurable step-up transformer can be electrically connected to the step-up transformer 17 1275249 - the secondary winding. In summary, the present invention can not only change the first specific point a and ", occupy the position of b, and can change the load current detected by the current feedback device," in other embodiments of the present invention, It is also possible to omit the current sharing network, which is the application of a single lamp. On the other hand, the present invention can also be used as a deer of the converter. According to the preferred embodiment of the present invention, one of the advantages of the present invention is f. The power converter with the phase-locked loop control function of the invention has a high tolerance for the error of the i-parameter size, and can reduce the cost of the circuit. ~1 The above-mentioned preferred embodiment of the present invention, the present invention In addition, the load fluctuation will affect the resonance frequency variation::! :: The operating frequency of the power converter of the loop control function can be traced to the 'frequency: lock kg has a higher tolerance for load variation error. According to the preferred embodiment of the present invention, one of the present inventions is that the right-handed 4-inflammation point of the present invention is converted from a power supply of a phase-locked loop control function, and is used as a frequency chasing (four) vibration frequency to enable a Wei circuit^ By = low virtual power consumption, and then high The resistive load can be reduced by the above-described preferred embodiment of the present invention. It is known that, in the present invention, another advantage of the w ^ ^ 就 就 表 表 〃 〃 〃 〃 〃 〃 〃 〃 〃 〃 〃 〃 〃 〃 This 5|丨古于山冤冤源 conversion benefits, medium, only built to J鬲 output / input electricity to run the circuit, there is no need to worry about the use of electricity k in the output 调 to ask the voltage over the problem. According to the present invention, the present invention has the advantages of the lock, t ^ ΰ 〇 ', and the output of the invention has a very high output voltage gain, which is enough for the 12 1275249 to quickly start the lamp. According to the preferred embodiment of the present invention, the power converter having the phase-locked loop control function of the present invention uses a voltage transformer to boost the input voltage, so that the present invention can be used. Electrical load g. According to the preferred embodiment of the present invention described above, another advantage of the present invention is that it is in the power converter having the phase locked loop control function of the present invention.
壓變壓器具有一輔助繞組’可用來偵測變壓器漏感上的電壓 相位。 1 本發明之又再一優點就 之電源轉換器可適用於 由上述本發明較佳實施例可知， 疋，本發明之具有鎖相迴路控制功能 電子安定器與轉換器。 以 和 圍 雖然本發明已以-較佳實施例揭露如上，然其並非用 ，定本發明，任何熟習此技藝者，在不脫離本發明之精神 耗圍内，當可作各種之更動與潤飾，因此本發明之保護範 當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 ▲為讓本發明之上述和其他目的、特徵、和優點能更明顯 易懂，下文特舉一較佳實施例，並配合所. 明如下： m乍砰細說 第1圖係繪示習知之定頻控制諧振電路輸出電壓 應示意圖。 午普 第2圖係繪示本發明具有鎖相迴路控制功能之電源轉換 19 !275249 器使用於電子安定器之電路示意圖。 :3圖係綠示本發明具有鎖相趣路控制功 '使用於電子安定器之另-電路示意圖。 第4圖係緣示本發明具有鎖相迴路控制功 益使用於電子安定器之又—電路示意圖。 第5圖係緣示本發明具有鎖相迴路控制功 則吏用於電子安定器之再—電路示意圖。 D。第6圖係緣示本發明具有鎖相迴路控制功 錢用於電子安定器之又再—電路示意圖。 第7圖係緣示本發明具有鎖招迴路控制功 為使用於電子安定器之又再_電路示意圖。 第8圖料示本發明具有鎖相迴路控制功 器使用於電子安定器之又再-電路示意圖。 第9圖係緣示本發明具有鎖相迴路控制功 益使用於轉換器之電路示意圖。 第10圖係繪示本發明具有鎖相迴路控制功 益使用於轉換器之另一電路示意圖。 能之電源轉換 月包之電源轉換 能之電源轉換 能之電源轉換 能之電源轉換 能之電源轉換 能之電源轉換 能之電源轉換 【主要元件符號說明】 202 :負載 2 0 6 :電流迴授裝置 2 1 0 :鎖相控制電路 214 :電源 2 1 8 ·半橋驅動電路 204 :相位偵測裝置 208 ·電流調整電路 2 12 ·均流網路2 1 6 ··開關 220 ·升遷變屬器 20 1275249 222 :諧振電路 224 : 226 :相位比較器 228 ： 230 :電壓控制震盪器 比較器 低通濾、波器The voltage transformer has an auxiliary winding 'which can be used to detect the voltage phase on the leakage inductance of the transformer. Still another advantage of the present invention is that the power converter can be applied to the above-described preferred embodiment of the present invention, and the present invention has a phase locked loop control function electronic ballast and converter. Although the present invention has been disclosed in the above-described preferred embodiments, it is not intended to be used in the present invention. Any skilled person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent and understood. The figure shows a schematic diagram of the output voltage of a conventional fixed frequency control resonant circuit. Fig. 2 shows the circuit diagram of the power converter with the phase-locked loop control function of the present invention. 19!275249 The circuit diagram used for the electronic ballast. : 3 is a green diagram of the invention. The invention has a phase-locked circuit control function 'another circuit diagram for use in an electronic ballast. Figure 4 is a schematic diagram of the circuit of the present invention having a phase-locked loop control function for use in an electronic ballast. Figure 5 is a schematic diagram showing the re-circuit of the electronic ballast with the phase-locked loop control function of the present invention. D. Fig. 6 is a schematic diagram showing the re-circuit of the present invention having the phase-locked loop control function for the electronic ballast. Fig. 7 is a schematic diagram showing the circuit of the present invention having a lock loop control function for use in an electronic ballast. Figure 8 is a schematic diagram showing the re-circuit of the present invention having a phase-locked loop control function for use in an electronic ballast. Figure 9 is a schematic diagram showing the circuit of the present invention having a phase-locked loop control function for use in a converter. Figure 10 is a schematic diagram showing another circuit of the present invention having a phase-locked loop control function for use in a converter. The power supply conversion monthly package power conversion energy conversion energy conversion power conversion energy conversion power conversion power conversion [main component symbol description] 202: load 2 0 6 : current feedback device 2 1 0 : phase lock control circuit 214 : power supply 2 1 8 · half bridge drive circuit 204 : phase detection device 208 · current adjustment circuit 2 12 · current sharing network 2 1 6 · · switch 220 · upshift converter 20 1275249 222: Resonant circuit 224: 226: Phase comparator 228: 230: Voltage controlled oscillator comparator low pass filter, wave
21twenty one