TWI251731B - Inverter circuit capable of adjusting power factor - Google Patents

Inverter circuit capable of adjusting power factor Download PDF

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Publication number
TWI251731B
TWI251731B TW93133708A TW93133708A TWI251731B TW I251731 B TWI251731 B TW I251731B TW 93133708 A TW93133708 A TW 93133708A TW 93133708 A TW93133708 A TW 93133708A TW I251731 B TWI251731 B TW I251731B
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Taiwan
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voltage
power
input voltage
pulse
signal
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TW93133708A
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Chinese (zh)
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TW200615736A (en
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Jin-Wen Jou
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Zippy Tech Corp
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Publication of TW200615736A publication Critical patent/TW200615736A/en

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Abstract

An inverter circuit capable of adjusting power factor transforms an AC signal of an electric power source to a pulse DC signal through a rectification unit and divides the duty cycle of minimum input voltage-maximum input voltage-minimum input voltage of the pulse DC signal to a plurality of continuous voltage pulses through an actuation unit so that a transformer outputs an altering duty cycle according to the resonant operation of each voltage pulse and enables a cold cathode lamp to blink in a dark-light-dark fashion to adjust the power factor without adding a power factor adjustment device.

Description

1251731 九、發明說明: 【發明所屬之技術領域】 ^發明係有關-種具備功_整效果之反流器電路 整器進行穩壓調整,卻器,而不須額外加裝功率因數調 【先前技術】 達功率隨調整效果之反流器電路。 及電感成分’因I’電子線負載外,其餘大多數的負載皆含有電阻 無效電流,胁配電線供給之總電射分財效電流與 僅為有效辨(Ια〇Ί=ι同,因此’好端之電度表所計算者 調整即成為電力用戶端系統相關麵極;的=:如何達成功率因數 電力電容器及節省贈’—般做法則多使用 有加裝功軸數i、/ 魏錢賴魅產業,多 式卻在部分《顧上細擾作=:級$’但是’該使用模 、t電式又壓&之反流②、舉例來說,由於|電式變壓哭之反_ ^二《大小而蚊躺輸出功率,以現有魏供應器;,心電壓 :功rt:4:特或、4!伏特穩壓’相對降低壓電式變壓器之反流器之輸 斤〜f 式變㈣之反流器是彻壓電片震盪峨應力作用下產生 電源開啟後’壓電片必須維持在48伏特工作,造成壓電片 命。早取大祕震盛下作動,而易於降低壓電式變壓器之反流器使用壽 【發明内容】 1251731 係提出-種不需要額外力決上述之缺失’避免缺失的存在,本發明 路,透過整流單元將+力了 數調整器而可降低線路成本之反流器電 低於入1, Ιί 轉滅之最低輸人賴-最高輸人輕-最 =壓週期(_ CYCLE)分割為多個連續電波,使^ 動脈波共振作動輸出變動鍾週期,並讓冷陰極燈管依該變 ‘調ί效燦光效果,而達無須功率因數調整器仍具備 本發明之另一 電壓脈波下作動, 反流器使用壽命。 【實施方式】 目的,在於本發明之反流器係在電壓緩升及緩降之連續 如此將可改善傳統反流器於單一高壓震盪而可有效維持 有關士發明之詳細說明及技術内容,現就配合圖式說明如下: 為使審查委員能確實了解本案技術,以τ實施例將以壓電式變壓器之 反流器為·(繞線式懸H之反流器作動方式相同本實關,則不另說 明之)。 凊茶閱『第2 Η所示』,係本發明之電路方塊示意圖,如圖所示:本發 明係令反流器充分使用電力源1〇有效電力而達功因調整之效,其包含有: 一電力源10,係提供交流電訊號,電力源1〇係由市電或其他外部交流 電力源10’並在電力源1〇輸入同時取得該交流電訊號之最高輸入電壓及最 低輸入電壓。 一整流單元11,係接收該交流電訊號並轉換為脈衝直流電訊號,整流 單元11係依貫際使用需求而為二極體群組成之全波整流電路或半波整流電 路0 一驅動單元12,係接收該脈衝直流電訊號並輸出一工作頻率將最低輸 入電壓-最高輸入電壓-最低輸入電壓之電壓週期(j)UTY CYCLE)分割為多 個連續電壓脈波,驅動單元12係由一控制積體電路121 (ic)及一功率電 晶體122 (MOSFET)組成’控制積體電路121之低電壓電力源係可連接外部 1251731 直流電源,由控制積體祕121對應Μ|§ 13之共振辦輸出其工作頻率 ·=動功率電晶體122職衝直流電訊號之賴_進行分割,經分割後之 =[Jf波為方波氣%,且連_電壓脈波係呈現由最低輸人電壓—最高輸入電 壓-最低輸入電壓之電壓緩升及緩降狀態。 哭 13 ’係對應每一電壓脈波接收該脈衝直流電訊號形成該變壓 堊卻且依母一電壓脈波之輸入電壓作動輸出電壓,該輸出電 聖係形成取低輸出電壓—最高輸出電壓—最低輸出電壓之變動電壓週期,本 發明=電感=與壓電片132組成之壓電式變壓器以為實施例說明。 、一冷f極燈管14,係接收該輸出電壓發出光亮,依該變動電壓週期, 14缸作鮮切訂所触之魏電壓由低—高—低,因此該冷 陰極$ 14在不同電壓脈波將呈現暗-亮—暗之_光效果。 可明顯看出,由於所有工作電壓20均有輸入作動產生電能 柃:Γ/右丑& 4而為準正弦波波形,相對輸出電流30也會全數供冷陰極 、=14制而軸有效電流,因此本發明可有效達成神贿調整效果,· ^,壓^變壓器13之反流器係自最低電壓值輸人就開始作動,因此可 n,自取低電壓值—最高電壓值-最低電壓值分割為多個連續電壓 G :、、緩升緩降之電壓震麵式飾,如此將可有效 之反流器使用壽命。 、艾 冷^燈管14的閃爍頻率設定須對應本發明實際應用產品進行,舉例 ^兒右本發月應用於液晶顯不屏,由於屬於人體眼睛須經常觀看之電子 β〇Γ因作頻率必須考量人眼可接受之閃爍光,而至少必須大於 吁二㈣對人眼可能影響之閃爍光越低,—般來說,壓電式 3 ^ 之工作頻率為72KHZ,也就是說,本發明可將自最低電 取冋祕值-表低電壓值之賴週期分割為·次連續電舰波,每 週期因壓電式變壓器13均作動輸出功率驅動冷陰極燈 陰極燈管14將呈财L漸亮職之·紐式,但_爍光超過: 目職感應,輯场不會造成任何傷害;若本發日聽祕人 貝可將工作鮮a又疋低於6〇Hz,如此霓虹燈管之閃爍光效果即會呈現,而 7 1251731 最佳方式更可將整流單元11採用半波整流器,如此更可產生間歇點燈方式。 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 範圍。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 本發明之技術範_。 1251731 【圖式簡單說明】 第1圖,係習用壓電式變壓器之反流器輸入電壓波形示意圖 第2圖,係本發明之電路方塊示意圖 第3圖,係本發明反流器之工作電壓及輸出電流波形示意圖 【主要元件符號說明】 10 .............電力源 11 .............整流單元 12 .............驅動單元 121 .............控制積體電路 122 .............功率電晶體 13 .............變壓器 131 .............電感 132 .............壓電片 14 .............冷陰極燈管 20.............工作電壓 30.............輸出電流1251731 IX. Description of the invention: [Technical field to which the invention belongs] ^Inventory related to a kind of inverter circuit with a power-effect effect for voltage regulation adjustment, without additional power factor adjustment Technology] The inverter circuit with the power adjustment effect. And the inductance component 'Because of the I' electron line load, most of the other loads contain the resistance ineffective current, and the total electric radiation of the load distribution line is only valid (Ια〇Ί=ι同, therefore ' The calculation of the meter of the good end of the electricity meter becomes the relevant surface of the power user system; =: How to achieve the power factor power capacitor and the saving of the gift - the general practice is to use the number of installed power axes i, / Wei Qian Lai's charm industry, but the multi-style is in the part of "taking care of the disturbing == level $' but 'the use of the mold, t electric and pressure & reflux 2, for example, due to | electric pressure crying The opposite _ ^ two "size and mosquito lying output power, to the existing Wei supplier;, heart voltage: power rt: 4: special or, 4! volts regulator' relative reduction of the piezoelectric transformer of the converter The ~f-type transformer (4) is a device that generates a power supply after the piezoelectric sheet is oscillated and stressed. The piezoelectric sheet must be maintained at 48 volts, causing the piezoelectric film to be killed. It is easy to reduce the use of the inverter of the piezoelectric transformer. [Description of the invention] 1251731 The extra force is to eliminate the above-mentioned lack of 'avoiding the existence of the missing, the road of the invention, through the rectifying unit, the + force adjuster can reduce the line cost, the inverter power is lower than the input, and the lowest input is -ί The highest input light-most = pressure cycle (_ CYCLE) is divided into a plurality of continuous waves, so that the arterial wave resonance actuation output changes the clock cycle, and allows the cold cathode lamp to change the effect of the light The power factor adjuster does not have the voltage pulse wave operation of the present invention, and the life of the inverter is long. [Embodiment] The purpose of the present invention is that the inverter of the present invention is continuous in the voltage ramping and slowing down. Improve the traditional counterflow in a single high-voltage oscillation to effectively maintain the detailed description and technical content of the relevant invention. The following is a description of the following: In order to enable the review committee to understand the technology of the case, the τ embodiment will be piezoelectric. The inverter of the transformer is (the winding mode of the H-flow reactor is the same as the actual operation, otherwise it will not be explained). The reading of the "Chapter 2" is a schematic diagram of the circuit block of the present invention. as the picture shows The present invention enables the inverter to fully utilize the power source 1 〇 effective power to achieve the effect of adjustment, which includes: a power source 10, which provides an alternating current signal, and the power source 1 is a commercial power source or other external AC power source. 10' and input the highest input voltage and the lowest input voltage of the alternating current signal at the input of the power source. A rectifying unit 11 receives the alternating current signal and converts it into a pulsed direct current signal, and the rectifying unit 11 is in accordance with the demand for use. A full-wave rectifying circuit or a half-wave rectifying circuit 0 for the diode group is a driving unit 12 that receives the pulsed DC signal and outputs a voltage cycle of the lowest input voltage - the highest input voltage - the lowest input voltage (the operating frequency) j) UTY CYCLE) is divided into a plurality of continuous voltage pulse waves, and the driving unit 12 is composed of a control integrated circuit 121 (ic) and a power transistor 122 (MOSFET) to control the low voltage power source system of the integrated circuit 121. Can be connected to the external 1251731 DC power supply, controlled by the integrated body secret 121 Μ | § 13 resonance to output its operating frequency · = dynamic power transistor 122 duty DC signal Lai _ divided by the division of = [Jf% air wave is a square wave, and the voltage pulse train even _ presented by the lowest input voltage - the highest input voltage - minimum input voltage of the voltage ramp and ramp down state. The crying 13' system corresponds to each voltage pulse receiving the pulsed DC signal to form the transformer, and the output voltage is actuated according to the input voltage of the mother voltage wave, and the output electrical system forms a low output voltage - the highest output voltage - The variation voltage period of the lowest output voltage, the present invention = inductance = piezoelectric transformer composed of the piezoelectric piece 132 is described as an embodiment. a cold-flamp tube 14 receives the output voltage and emits light. According to the varying voltage period, the 14-cylinder fresh-cutting touches the Wei voltage from low-high-low, so the cold cathode is 14 14 at different voltages. The pulse wave will exhibit a dark-light-dark _ light effect. It can be clearly seen that since all working voltages 20 have input actuation to generate electric energy 柃: Γ / right ugly & 4 and are quasi-sinusoidal waveforms, the relative output current 30 will also be supplied to the cold cathode, =14 system and the shaft effective current Therefore, the present invention can effectively achieve the effect of the adjustment of the bribe. ^, the inverter of the transformer 13 is activated from the lowest voltage value, so it can be taken from the low voltage value - the highest voltage value - the lowest voltage The value is divided into a plurality of continuous voltages G:, and a voltage rise-off type with a slow rise and fall, which will effectively reduce the service life of the inverter. The setting of the flicker frequency of the Ai Leng lamp tube 14 must be carried out according to the actual application product of the present invention. For example, the application of the right eye to the liquid crystal display screen is not necessary. Considering the flickering light acceptable to the human eye, and at least must be greater than the lowering of the scintillation light that may be affected by the human eye. In general, the piezoelectric 3^ operating frequency is 72KHZ, that is, the present invention can The sub-cycle of the lowest value of the low-voltage value is divided into the sub-continuous electric ship wave. Each cycle is driven by the piezoelectric transformer 13 to drive the cold cathode lamp cathode lamp 14 to be a financial Brighten the new style, but _ Shuoguang exceeds: The target sense, the scene will not cause any harm; if the secret person to listen to the secret, Beike will work less than 6 Hz, so neon tube The flashing light effect will appear, and the 7 1251731 best mode can use the half-wave rectifier for the rectifying unit 11, so that the intermittent lighting mode can be generated. The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. That is, the equivalent variations and modifications of the content of the patent application scope of the present invention should be the technical scope of the present invention. 1251731 [Simplified description of the drawing] Fig. 1 is a schematic diagram showing the waveform of the input voltage of the inverter of the piezoelectric transformer. Fig. 2 is a schematic diagram of the circuit block diagram of the present invention, which is the operating voltage of the inverter of the present invention. Schematic diagram of output current waveform [Description of main component symbols] 10 .............Power source 11 .............Rectifier unit 12 ....... ... drive unit 121 .......... control integrated circuit 122 ..... power transistor 13 ... .......Transformer 131 .............Inductance 132 ........ Piezo Pieces 14 ......... ....Cold cathode lamp tube 20.............Working voltage 30.............Output current

Claims (1)

啤飄,'史.1 十、申請專利範圍: !•-種具備功因簡效果之反^魏,齡 電力而達功因調整之效,其包含有: 。兄刀使用屯力原有效 一電力源,係提供交流電訊號,並 壓及最低輸入電壓; ^又/爪甩讯唬之最高輸入電 一元,係接㈣交流電職並轉換為脈衝直流電訊號; ^動早7L,係接收該脈衝直流電訊號並輸出—丄作 η壓-最而輸入電壓—最低輸入電壓之電 E為: 個連續電壓脈波; 刀副為多 _1=Γΐ=脈波接收該脈衝直流電訊號形成嶋 係形成最低輸_-最 侧娜之反峨路,其— 3· 利範圍第1項所述具備侧調整效果之反流器電路,其中該整 /瓜早兀係為半波整流電路。 & 4· 蝴第1項所述具備功因調整效果之反流器電路,其中該驅 R 、—控制積體電路UC)及-功率電晶體(MOSFET)組成。 • 利執圍第1項所述具備功因調整效果之反流器電路,其中該變 壓裔係由一電感及一壓電片組成。 10Beer floating, 'History. 1 X. The scope of application for patents: !•- The kind of anti-wei, the age of power and the effect of adjustment, including: The brother knife uses the power source of 屯力原, which provides the alternating current signal and the minimum input voltage; ^ and the highest input power of the 甩 甩 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , 7L early, receiving the pulsed DC signal and outputting - η η voltage - most input voltage - the lowest input voltage of the electric E is: a continuous voltage pulse; the knife pair is more than _1 = Γΐ = pulse receiving the pulse The DC signal forms a 输 system that forms the lowest transmission _-the most versatile, and the 反 · 范围 范围 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备 具备Rectifier circuit. & 4· The butterfly circuit with the power factor adjustment effect described in Item 1 is composed of the drive R, the control integrated circuit UC, and the power transistor (MOSFET). • The inverter circuit with the effect adjustment effect described in Item 1 of the Diet, wherein the transformer is composed of an inductor and a piezoelectric piece. 10
TW93133708A 2004-11-05 2004-11-05 Inverter circuit capable of adjusting power factor TWI251731B (en)

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TW200615736A TW200615736A (en) 2006-05-16

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