TW533661B - System and method of program control isolation start of switching power supply - Google Patents
System and method of program control isolation start of switching power supply Download PDFInfo
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533661533661
533661533661
___案號 90122819 五、發明說明(2) 很多’其工作電壓(即輔助電源 助電源作為啟動電源 而B之隔離方法當中,一船炎嗜,p丨丨古:八何鬼壓。 叙來4則直接以隔離型輔 上述A之以光耦合器隔離之方法在電路上較簡易,但 有下列之問題與限制點:1 ·產品製造時,電流傳輸比 (current transfer ratio或CTR)誤差率大•驅別動電流 (id)大小及溫度的變化5會對CT]R值影響復大,屬非線性 關係。3·穩定度不好,CTR值會隨時間而降低。4•頻寬不 寬5響應不好。5 ·須作兩次補償。 上述A之以脈波受壓杰加振幅調變器隔離之方法電路 較複雜,目前雖有專用IC(UC39 0 1 )可簡化電路,但仍有下 列之問題與限制:1·振幅調變器之頻率(約與切換 頻率不同,佈局不佳易互相干擾,補償不易。2商源不 足5板少人採用。3·成本較高。4·須作兩次補償。 而A之以磁氣放大隔離之方法電路複雜,目前亦有專 用IC(UC3838 )玎簡化電路,但仍有下列之缺點及限制’ :l 短路保護時須很大的重置電流,飽和鐵芯(相當於切換開 關)因鐵損急速增加而發燙,鐵芯材料特性會改變,除非 散熱措施適當(例如鐵芯加大),否則不宜短路太久。2 · 須增加飽和鐵芯’體積變大。3 ·成本高。*須作兩次補 償。 一、> 以B之方法作辅助電源則有以下兩種作法: 有下 2 ·效 I ·交流電輸入可用低頻變壓器作辅助電源隔離 列之問題與限制:1 ·低頻變壓器體積大,易佔空間 率板,、右43 土女。3 二女奶箱至J空1ST、_ 533661___Case No. 90122619 V. Description of the invention (2) Many of its working voltages (that is, the auxiliary power source is used as the starting power source and the isolation method of B is a boat with a fascination, p. 4 It is simpler to use the isolation type to supplement the above A and optocoupler isolation, but it has the following problems and limitations: 1 · When the product is manufactured, the current transfer ratio (CTR) error rate Large • The magnitude of the idling current (id) and the change in temperature 5 will have a large effect on the CT] R value, which is a non-linear relationship. 3. The stability is not good, and the CTR value will decrease with time. 4 • The bandwidth is not The response of wide 5 is not good. 5 · Compensation must be performed twice. The method of isolation of pulse wave compression plus amplitude modulator isolation in the above A circuit is more complicated. Although a dedicated IC (UC39 0 1) can simplify the circuit, but There are still the following problems and restrictions: 1. The frequency of the amplitude modulator (approximately different from the switching frequency, poor layout, easy to interfere with each other, and difficult to compensate. 2 Less than 5 commercial sources, few people use it. 3. Higher cost. 4 · Must be compensated twice. The method of A using magnetic amplification and isolation is complicated. At present, there is a dedicated IC (UC3838) that simplifies the circuit, but still has the following disadvantages and limitations': l A large reset current is required during short-circuit protection. The saturated iron core (equivalent to a switch) is caused by the rapid increase of iron loss. Ironing, the core material characteristics will change, unless the heat dissipation measures are appropriate (such as the core is enlarged), it should not be short-circuited for too long. 2 · The saturated core must be added to increase the volume. 3 · High cost. * Compensation must be made twice I. > There are two ways to use B as auxiliary power supply: There are two problems: I. I. AC input can use low-frequency transformer as auxiliary power supply isolation problems and limitations: 1. Low-frequency transformer is large and easy to occupy. Space rate board, right 43 soil girls. 3 second female milk box to J empty 1ST, _ 533661
9Q122R19 五、發明說明(3) π·直流電輸入可用前饋式PWM電路或鈐、、六 離 限 失 同 ringing choke converter 或RCC)電路蓉巳,9Q122R19 V. Description of the invention (3) π · DC power input can use feed-forward PWM circuit or 钤, 6-separation ringing choke converter or RCC) circuit.
',屬?;切換式,有下列問題與S 易又/皿度影響。2·辅助電源高頻切換,^造 —-效率低。3·輔助電源切換頻率與主带= 变貝 /頁防互相干擾。4·電路複雜,成本高。 啟動方法的問題則有:A之方法由輸入φπ 士', Genus? ; Switching type, there are the following problems and the influence of S / easiness. 2. High-frequency switching of auxiliary power supply, low-efficiency. 3. Auxiliary power switching frequency and main band = variable shell / page anti-interference. 4. The circuit is complicated and the cost is high. The problem with the starting method is: the method of A consists of inputting φπ
動,初級/次級回授隔離需有另外裝置。Β之包方\且iW A負载變動時,辅助電源電壓會跟著變動,此K := 超出合理之工作電壓值。 值可月匕 除了上述的隔離啟動方法外, 身及使用者之安全,同時須作過卜流/刀因本 Ϊ係:電;=成電壓,將此電魔感應值輪入:流比較The primary / secondary feedback isolation requires an additional device. The contractor of Β \ and when the load of iW A changes, the auxiliary power supply voltage will change accordingly. This K: = exceeds a reasonable working voltage value. In addition to the above isolation start method, the safety of the user and the user must be at the same time. The system: electricity; = voltage, this electric magic induction value turns in: flow comparison
^ ^ ^ ^ ^ ί ί CP w M C r tb M 此::f始之脈衝產生(p—二:方 脈波寬:ΐ很:週期性頻率通常比工作頻率低很多,且其 為週:':脈保護過久,易造成零件之損壞1限流 低均方根(root ,雖然具有F〇ldback方式,將輸入限在 瞬門兩、ά meari square’以下簡稱!·!^)電流值,但 =二)’落在切換式電源供應器上之能源損失Μ: 一 ln rms)〜(v〇ut rms)x (lout rms),因v〇ut rms^ ^ ^ ^ ^ ί CP w MC r tb M This :: the pulse of the beginning of f (p-2: square pulse width: ΐ very: the periodic frequency is usually much lower than the operating frequency, and it is week: ' : Pulse protection is too long, and it is easy to cause damage to the parts. 1 Current-limiting low root mean square (root, although it has a Foldback method, the input is limited to the instantaneous gate two, ά meari square 'hereinafter !!! ^) current value, But = two) 'energy loss on the switching power supply M:-ln rms) ~ (v〇ut rms) x (lout rms), because v〇ut rms
第6頁 開心最大輸出電流還大(有時大很多),且切換 (广’不斷在工作,輪出短路時,能源總損失ms) 533661 五 發明說明(4)Page 6 The maximum output current of Kaixin is still large (sometimes much larger), and it is switched (Which is constantly working, the total energy loss ms when the wheel is short-circuited) 533661 V. Description of the invention (4)
-Μ號 9m?9RiQ 小 _修正-M No. 9m? 9RiQ small _correction
度會n 產生,隨著熱累積電源模組溫 極易造成損壞件之可女全工作範圍降低,#到達臨界點時 【發明之目的及概述】 的問ϊ:以源的隔離與啟動方法上 與啟動之方 > 少壯 _切換式包源供應器之程控隔離 用,省略了::衣置,其電路簡易體積小5由於软體的應 用’略了許多硬體的使用。 哭f ^月尚有個目的,在於提供一種切換式電源供應 的之程控隔離與啟動之方法與裝置,其迴授補償簡易,由 於輸出電壓直接迴授至1(:之誤差放大器,方波驅動訊號再 經由變壓器T2隔離至初級驅動開關(電晶體),在數學模式 中視為線性關係,且其頻寬大(即誤差放大器之頻寬^^ 補僅裔之设什’極為簡易。 、 ^本發明另有一個目的,在於提供一種切換式電源供應 器之程控隔離啟動之系統,其啟動電路具有隔離功能,並 具有自動過流/短路保護功能與暫態或常態過流/短路判別 保護功能。 本發明另有一個目的,在於提供一種切換式電源供應 器之程控隔離啟動之系統,因啟動電源之工作極短時間, 故功率損失小,沒有長時間之輔助電源功率轉換之損失問 題。 、 依據本發明所提供的切換式電源供應器之程式控制隔 離啟動的系統,將脈波寬度調變器(PWM)放在次級,但不 作隔離輔助電源5改為只作隔離啟動電源,P襲控制丨c所Degree n will be generated. As the temperature of the heat accumulation power module is extremely easy to cause damage, the full working range of the woman will be reduced. # When the critical point is reached, [the purpose and overview of the invention] question: Source isolation and start method And the way to start > Shao Zhuang _ Programmable isolation for switching package source supplier, omitted :: clothing, its circuit is simple and small 5 due to the application of software 'slightly used a lot of hardware. There is still a purpose in crying for months, which is to provide a method and device for program-controlled isolation and start-up of switching power supply. The feedback compensation is simple, because the output voltage is directly fed back to 1 (: error amplifier, square wave drive). The signal is then isolated to the primary drive switch (transistor) by the transformer T2, which is regarded as a linear relationship in the mathematical mode, and its frequency bandwidth is large (that is, the bandwidth of the error amplifier ^^ It is very simple to supplement the device's design). ^ This invention Another object is to provide a program-controlled isolated start-up system for a switching power supply. The start-up circuit has an isolation function, and has an automatic overcurrent / short circuit protection function and a transient or normal overcurrent / short circuit discrimination protection function. Another object of the invention is to provide a program-controlled, isolated start-up system for a switching power supply. Because the start-up power supply works for a very short time, the power loss is small, and there is no long-term auxiliary power conversion loss problem. The invention provides a program-controlled isolated start-up system for a switching power supply, which converts a pulse width modulator PWM) on the secondary, but not for isolation purposes only and the auxiliary power supply 5 to turn on the power isolation, P c of the passage control Shu
533661 案號 90122819 五、發明說明(5) ΐ i電源由次級輸出提供。啟動電源的作法係利用含有程 =·控制之裝置作啟動控制,例如:程式控制器單晶片 (Mlcrocontroller Unit或簡稱程式控制器)’ 一但啟動完 =,PM控制線路正常工作後,程式控制即不再進行動 二f有需要重新啟動日寺’本發明可透過硬體或程式的方 :u動重新啟動。本發明同時可透過硬體與軟體的方 ;供::2壓大小差距極大的狀況下同樣能進行啟動並 詳細ΐ = ί 5明的特徵與實作,自配合圖示作最佳實施例 【發明之詳細說明】 月ί考第1圖,本發明之切換 之隔離與啟動方法之電路方塊圖換。式迅社應^式控制 路,士 iί式電源供應器程式控制之隔離啟動電 含了編10、程式控制隔離啟動電路 開關Γ變壓器3°、整流遽波器4〇、切換 器8。。 又“6〇、迴授補償電路7〇與脈波寬度調變 晉於、、將就本务明之系統連接與運作做一詳细^兒明 波並輸出為—直流電接’將輸入之--電源、濾 始動作並建立啟動♦; 狂八徑制隔離啟動電路2 設置於次級J皮二 =二寬度調請。提供電』: 電路2〇所提供白勺電力ς U &得到程式控制隔離 便么、應驅動變壓器6 0次級於 始動作並建立;級程式控制隔離啟動電心^ 533661533661 Case number 90122819 V. Description of the invention (5) 电源 i Power is provided by the secondary output. The method of starting the power source is to use a device containing program = · control for start-up control, for example: a program controller single chip (Mlcrocontroller Unit or program controller for short). Once the start-up =, the PM control circuit works normally, and the program control is There is no need to perform the second operation. If the temple needs to be restarted, the present invention can be restarted through hardware or program. The present invention can be implemented through hardware and software at the same time; for :: It can also be started and detailed in the case of a large gap between the two pressures ΐ = ί 5 features and implementation, self-coordinated illustration for the best embodiment [ Detailed description of the invention] As shown in Fig. 1, the circuit block diagram of the switching isolation and starting method of the present invention is changed. The type control circuit of Shi Xun Society is based on the program. The isolated start-up power of the power supply program control includes 10, program-controlled isolated start-up circuit, switch 3 ° transformer, rectifier 4 and switch 8. . In addition, "60, feedback compensation circuit 70, and pulse width modulation, and will make a detailed description of the connection and operation of the system of Mingming ^ Mingming wave and output as-DC connection 'will be input- Power, filter start action and establish start; mad eight-path isolation start circuit 2 is set at the secondary J leather two = two width adjustment. Provide electricity ": the electric power provided by the circuit 2 U & get program control isolation Then, the transformer 60 should be driven to start at the secondary level and set up; level program control isolates the start-up core ^ 533661
案號 9012281QCase No. 9012281Q
五、發明說明(6) 力’麵合電力至驅動變壓哭β 〇 、 能艾& σσ60的初級端再提供原為關閉狀 = _而將功率變壓器3。的初級端導通,: : = :;,、輸出電壓迅速建立,完成啟動動作 動作,if 士於山^ ^後,耘式控制隔離啟動電路2 0即停止 端”“=二〒壓已建立完成,而與功率變壓器30次級 =ί ΐ波器4〇繼續供應出直流輸岀電壓,再透過 定的輸出亩〜茂ί 艾益80的調_,即可供應穩 .^ ι。畜啟動後的脈波寬度調變器8 0的電力 來源,可直接由輸出電源所提供。 带Μ 提供了過流/短路時的保護措施,只要輪出 ^ : 助電源無法正常提供脈波寬度調變器8 0工作 、Ρ…、驅動能量作高頻切換,冑出電力即終止,且 控制隔離啟動電路2G不再有啟動能力,其他元件都將停 擺如/匕,即可執打嚴格之過流或短路保護,避#,整個车 統(包括使用者)因過流或短路太久而造成損壞。——糸 不過,有些過流或短路只是短暫的,貝彳pWM控制電路 需:被:新啟動之功能,可在程式中加以判斷過流或短路 狀〜、々啟動重新開始。第1圖當中的電流感知電壓電路 160、驅動信號檢知電路17()與輔助電源電壓檢知電路18〇 三個虛線方塊,其主要功能在於能檢知輸出電壓下降之訊 息’任一部份都可讓本發明在發生過流/短路時,做自 重新啟動的動作。 首先’可增加一個輸入電流感知電壓電路丨6 〇,在輸 入路徑串聯電^或電流變壓器(CT),電流越大感應電壓越V. Description of the invention (6) The force ′ is applied to the primary side of the driving transformer β 〇, the primary side of the energy A & σσ60 and then the power transformer 3 is turned off. The primary side is turned on:: =:;, and the output voltage is quickly established to complete the start-up action. If 士 于 山 ^ ^, the control-type control isolation start-up circuit 2 0 is the stop side. "" = The second voltage has been established. And the power transformer 30 secondary = 次级 wave generator 40 continues to supply the DC input voltage, and then through a fixed output mu ~ Mao ί Ai Yi 80 tune _, you can supply a stable. ^ Ι. The power source of the pulse width modulator 80 after the animal is started can be directly provided by the output power. The belt M provides protection measures in the event of overcurrent / short circuit, as long as it is turned out ^: the auxiliary power supply cannot provide the pulse width modulator 80 normally, P…, and the driving energy for high-frequency switching, and the power generation is terminated, and Control and isolation start circuit 2G no longer has the ability to start, other components will stop like / dagger, you can perform strict overcurrent or short circuit protection, avoid #, the entire vehicle system (including the user) due to overcurrent or short circuit for too long And cause damage. —— 糸 However, some over-current or short-circuits are only short-lived. 彳 pWM control circuit needs to be: Newly started function, you can judge the over-current or short-circuit status in the program ~, 々 start again. The three dashed blocks of the current sense voltage circuit 160, the drive signal detection circuit 17 (), and the auxiliary power supply voltage detection circuit 18 in FIG. 1 are mainly used to detect any part of the message that the output voltage drops. The invention can allow the present invention to perform a self-restarting action when an overcurrent / short circuit occurs. Firstly, an input current sensing voltage circuit can be added. 6 〇 In the input path, a series electric current or current transformer (CT) is connected. The larger the current, the higher the induced voltage.
533661533661
案號 90122819 五、發明說明(7) 大,無電流則電壓等於零,若整個電路正常工作,將會感 應較高直流電壓;若發生限流或短路保護,會感應較低1 流電壓。可利用此感應電壓輸入至程式控制隔離啟動電路 20中作判斷。判斷到此低直流電壓,程式即執行重新啟動 的功能。 其火’可增加一個驅動彳§ 5虎檢知電路1 7 〇,其原理来員 似電流感知電壓電路1 6 0的方式,在驅動變壓器⑽上多綠 一組線圈5即可整流濾波成一直流電壓,若整個電路/正^ 工作,將會有較高直流電壓;若發生限流或短路保i: 有較低直流電壓。判斷到此低直流電壓,程式 ^二 啟動的功能。 彳丁置新 最後,可增加一個輔助電源電壓檢知電路18〇, 出電源電壓來檢知並傳至初級’但必須作隔離, : 合器作隔離,透過電流傳輸比(CTR)將次級電壓隔先輕 至初級程式控制隔離啟動電路20當中,專輸 傳輸電壓值將在-定值,判斷其正常工作二: 戈 動電賴之電壓就會下降,程式即;制隔離啟 此外,當輪出電壓不適於當辅助動的功能。 提供-種輔助電源,在功率變壓器3 ',f發明亦 第二整户垆也口口 7 , π _ ^ ^ 上夕% 一組線圈,經 理之Vc ”内^担正^遽波成%電壓,此電壓值在合 作。% ’以如供脈波寬度調變器8〇之電路正常工 圖。第1圖所述的程式控制隔離啟動電物,請參考第2Case No. 90122819 V. Description of the invention (7) The voltage is zero when there is no current. If the entire circuit works normally, it will sense a higher DC voltage; if current limiting or short-circuit protection occurs, a lower 1-current voltage will be induced. The induced voltage can be input to the program-controlled isolation start circuit 20 for judgment. When this low DC voltage is judged, the program will execute the restart function. Its fire 'can add a drive 彳 § 5 Tiger detection circuit 170. Its principle is similar to the current sense voltage circuit 160. In the drive transformer 多, a group of green coils 5 can be rectified and filtered into a direct current. Voltage, if the entire circuit / positive circuit works, there will be a higher DC voltage; if a current limit or short circuit occurs i: there is a lower DC voltage. After judging this low DC voltage, the program ^ 2 activates the function. At last, you can add an auxiliary power supply voltage detection circuit 18 to detect the power supply voltage and pass it to the primary level. However, it must be isolated: the coupler is isolated, and the secondary level is transmitted through the current transfer ratio (CTR). The voltage isolation is as low as the primary program control and isolation start circuit 20, and the transmission voltage value of the dedicated transmission will be at a fixed value to judge its normal operation. Second: The voltage of the electric motor will decrease, and the program will be started. The wheel-out voltage is not suitable for the function of auxiliary movement. Provides a kind of auxiliary power source. In the power transformer 3 ′, f invention is also the second whole household. Also the mouth 7, π _ ^ ^ On the evening of a set of coils, within the manager ’s Vc ”bears the positive voltage. This voltage value is cooperating.% 'For the normal working diagram of the circuit for the pulse width modulator 80. For the program control isolation starting electrical equipment described in Figure 1, please refer to Section 2
第10頁 53366l 修正 五 曰 案號90122819 丰 b 發明說明^--- 圍電電源提供一 VCC電屋給程式控制器單元9〇及其周 控制哭、5用⑽此Vcc電壓藉由以及電壓箝制器100箝制程式 轉換正ί工作電壓範圍1以高頻切換之電力 力透:程式控制器單元90所提供,啟動電 器130110隔離耦合至次級的另一個整流濾波 常工分,^動弟1 ®巾的脈波寬度調變器80之控制IC至正 _制)。丨』对切換開關1 20關閉(由程式控制器單元90 控制)’不再作電力轉換。 的大:外輪檢知電路150來做判斷輪入電壓 此分壓麵電路15〇可用兩電阻串聯分壓,將 9"的程^:::換ΐ數位訊號,可利用程式控制器單元 作比較,』壓大小;或將此分壓與-參考電位 元90 ,亦可作^ ^二igh或[0评訊號輸至程式控制器單 幫助系厂…斷。㈣壓大小的判斷可 電壓。 …—犯圍後大時,可有效控制正常之啟動 與功率變壓哭3 n * ^ i即透過程式控制隔離啟動電路2 0 氣隔離。 ’、區 &壓器6 0三者作為初級與次級的電 當輪出電壓約在合 功能為阻绝啟 二Vc:屋内,則作-箝制電路, 動不起來,箝制電㈣’以免一開始PWM電路啟 合理之Vc電壓,為 /考弗3人圖。另外,當輸出電壓〉 參考第3B_。為避免^電壓過大,則作一降壓電路,請 本發"9"p yu 最低與最高值相差很大的狀況Page 10 53366l Amended case number 90122619 Feng b Invention description ^ --- The electrical power supply provides a VCC electric house to the program controller unit 90 and its weekly control, 5 uses this Vcc voltage by and voltage clamping The controller 100 clamps the program conversion positive. The working voltage range 1 is switched by high-frequency electric power: provided by the program controller unit 90, the starter 130110 is isolated and coupled to another secondary rectifier and filter normal working point. Control IC of the pulse width modulator 80 to a positive system).丨 "Turn off the switch 1 20 (controlled by the program controller unit 90)" and no longer perform power conversion. Big: The outer wheel detection circuit 150 is used to determine the turn-in voltage. This voltage dividing surface circuit 150 can use two resistors in series to divide the voltage. The 9 " process ^ ::: is changed to a digital signal, which can be compared using a program controller unit. ”Or“ 0 ”; or this partial voltage and-the reference potential element 90, can also be used as ^ ^ two igh or [0 evaluation signal to the program controller single to help the system ... break. The magnitude of the pressure can be determined by voltage. … —When the siege is large, it can effectively control the normal start-up and power transformation. 3 n * ^ i is the program-isolated start-up circuit 2 0 gas isolation. ', Area & voltage transformer 60 as the primary and secondary electricity when the output voltage is about the combined function to prevent Kai II Vc: inside the house, then make-clamp the circuit, can not move, clamp the electric ㈣' to avoid one Start the PWM circuit to start a reasonable Vc voltage. In addition, when the output voltage is> 3B_. In order to avoid excessive voltage, a step-down circuit is used. Please refer to the situation where the minimum and maximum values of this device are very different.
第11頁 533661 曰 修」 案號 90122819 五、發明說明(9) 下同樣啟動,請參考第4圖。 首先,由V i η輸入(步驟4 1 〇 )電源,接著,由程式控制 态單元90 Ι/P端檢知Vin端之輸入電壓值(步驟42〇),判斷 其輪入電壓南低(步驟4 3 0 ),若屬低電壓輸入,則將責任 週期比(duty ratio)調高(步驟44〇);若屬高電壓輸入, 則將責任週期比調低(步驟450 );由0/P輪出脈波(步驟 46 0 ),以驅動切換開關12〇,將電壓調整至正常工作之啟 動屯壓範圍。此%程式控制隔離啟動電路2 〇即可停止運 作,亦即,經過m秒後,即可停止〇/p輸出(步驟47〇),並 進入延遲狀(步驟480 ),直到需要重置啟動時。 敌i另外,可直接以程式控制器單元90的程式來進行重新 制,請參考第5圖,本發明之程式控制重新啟動 方法流程圖。—開始,為程式控制隔離啟動電 的啟動程序igp,Vin為輸 =控制隔離啟動電路後,_為輸出 二 二,秒後,完成啟動,停止〇/p輸出(⑽,豆田 秒為一預設時間,接 ^ 〇υ;,、甲此ro 知電壓是否發生改變(步驟54 ^^空制為、單元90 I仆端檢 發生(步驟5 5 0 ),則程式押告鲍。雨出有過流或短路 方波,亦即,一直重福制隔離啟動電路20將再輪出0/Ρ 常;如果未發生過流戋2啟動,直至輸出電壓恢復正 本發明= U讀知Ι/Ρ之電壓。 時Τ的機制為一計時秒數叶:步驟%。),此計 k秒内重複重新啟動(步驟田毛生曰恶過流-或短路時,在 動秒數,若了時間大於& = ! β ,而此k秒表示為一重複啟 ^^疋過流或短路狀態,則停止重 533661Page 11 533661 "Repair" Case No. 90122819 V. Description of the invention (9) Starts the same, please refer to Figure 4. First, the power is input from V i η (step 4 1 〇), and then the input voltage value of the Vin terminal is detected by the program control state unit 90 I / P (step 42), and the turn-in voltage is judged to be low (step 4). 4 3 0), if it is a low voltage input, the duty cycle ratio is increased (step 44); if it is a high voltage input, the duty cycle ratio is decreased (step 450); from 0 / P The pulse wave is output (step 46 0), and the switch 12 is driven to adjust the voltage to the normal operating starting voltage range. The% program control isolation start circuit 2 can stop operation, that is, after m seconds, it can stop 0 / p output (step 47), and enter a delay state (step 480), until it needs to reset the start . In addition, it can be directly reprogrammed by the program of the program controller unit 90. Please refer to FIG. 5 for a flowchart of the program control restart method of the present invention. —Start, start the program igp for the program-controlled isolation start, Vin is the output = after the control-isolated start circuit, _ is the output 22, and after the second, complete the startup, stop 〇 / p output (⑽, Douda second is a preset Time, then ^ 〇υ ;, if the voltage is changed (step 54 ^ ^ empty system, unit 90 I server detection occurs (step 5 50)), the program sue Bao. Has the rain occurred Current or short-circuit square wave, that is, the Isolation start circuit 20 will always be 0 / P again; if no overcurrent occurs, the 2 will start until the output voltage is restored. The present invention = U read I / P voltage The mechanism of the time T is a timed second leaf: step%.), This restarts repeatedly within k seconds (step Tian Maosheng said evil overcurrent-or short circuit, if the time is greater than & =! β, and this k seconds is expressed as a repeated start ^^ 疋 overcurrent or short-circuit state, then stop weighing 533661
案號 90122819__^ M Q 五、發明說明一 — 新啟動,進入延遲狀態(步驟58〇),輸 元件都停擺。 ^包力終止’其他 第6圖〜第9圖說明了以輸入+ 28Vdc ’輪〇 马例,所得之數據圖。 电〆原 第δ圖為Vc電壓建立波形圖,啟叙 常工作。第7圖則說明了輸承接,以維持正 路發生,啟動電路重新』:;;:7^^1電源波形,短 電源波形,暫態短路解弟暫態短路時Vc辅助 由啟動電路及輸出同時提供,带】ς人设正常,輔助電源Case No. 90122819 __ ^ M Q V. Invention Description 1 — New start, enters the delay state (step 58), and the output components are stopped. ^ Bao Li Termination 'Others Figures 6 to 9 illustrate the data obtained by using the input + 28Vdc' round ○ horse example. Figure δ of the electric power source establishes the waveform diagram of the Vc voltage. Figure 7 illustrates the transmission and receiving to maintain the positive path, and the starting circuit is restarted. ";;: 7 ^^ 1 power waveform, short power waveform, transient short circuit solution, and Vc assisted by the start circuit and output at the same time Provided, with] normal setting, auxiliary power
後,辅助電源僅由輪出提_,^ 約17¥,再經3〇mS 明了輪出常態短路時之〜辅助恭J至約U.5V。第9圖說 仍為短路,則啟動電路不再工二〜鮭形,輪出短路經k秒 同時脈波寬度調變器 ^助電源電壓逐漸降至 【發明之功效】 卜丹工作。 ^孓月之切換式電源供應界之 一 f :於電路精簡、、雜。,控制隔離與啟動方 易,適用於軍規市場· 脰積小、成本低且補償容 短路保護功能。輪出 效盈即有自動或智慧型過流/ 耗,:增加額外之電路二幾易乎不會有能量之損 雖然本發明以前/後間易。 用以限定本發明,任 較佳實施例揭露如上,铁豆 乾圍所界定 第13頁 533661 案號90122819 年月日 修正After that, the auxiliary power supply is only raised by the wheel out, ^ about 17 ¥, and it is clear from the 30mS that when the wheel is in the normal short circuit, ~ auxiliary J to about U.5V. Figure 9 says that the circuit is still short-circuited, and the start-up circuit is no longer working in a salmonoid shape, and the short-circuit cycle is repeated for k seconds. At the same time, the pulse width modulator is gradually reduced. [Effect of the invention] Bu Dan works. ^ One of the switching power supply industries in the month f: The circuit is streamlined and complicated. It is easy to control, isolate and start, and is suitable for the military-regulated market. · Small accumulation, low cost and short circuit protection function of compensation capacity. Automatic or intelligent over-current / power consumption can be achieved when the wheels are turned on and off: adding additional circuits is almost impossible without energy loss. Although the invention is easy before / after. It is used to limit the present invention, and any preferred embodiment is disclosed above, as defined by Tiedou Ganwei Page 13 533661 Case No. 90122619 Amendment
第14頁 533661 _ 案號90122819_年月日__ 圖式簡單說明 第1圖為本發明之切換式電源供應器程式控制之隔離與啟 動方法之電路方塊圖; 第2圖為本發明之程式控制隔離啟動之電路圖; 第3 A圖為本發明之鉗制電路圖; 第3B圖為本發明之降壓電路圖; 第4圖為本發明之程式控制啟動方法之流程圖; 第5圖為本發明之程式控制重新啟動之具體實施方法 流程圖; 第6圖為V c電壓建立波形圖;Page 14 533661 _ Case No. 90122619 _ year month day __ Brief description of the drawing Figure 1 is a circuit block diagram of the isolation and starting method of the switching power supply program control of the present invention; Figure 2 is the program of the present invention Circuit diagram for controlling isolated startup; Figure 3A is a clamp circuit diagram of the present invention; Figure 3B is a step-down circuit diagram of the present invention; Figure 4 is a flowchart of a program control startup method of the present invention; and Figure 5 is a flowchart of the present invention. Flow chart of the specific implementation method of program control restart; Figure 6 is a waveform chart of V c voltage establishment;
第7圖為輸出短路時Vc輔助電源波形圖; 第8圖為輸出暫態短路時Vc輔助電源波形圖;以及 第9圖為輸出常態短路時之Vc輔助電源波形圖。 【圖示符號說明】Figure 7 is a waveform diagram of the Vc auxiliary power supply when the output is short-circuited; Figure 8 is a waveform diagram of the Vc auxiliary power supply when the output is short-circuited; and Figure 9 is a waveform diagram of the Vc auxiliary power supply when the output is short-circuited. [Illustration of Symbols]
10 濾 波 器 20 程 式 控 制 隔 離 啟動電路 25 電 力 轉 換 器 30 功 率 變 壓 器 40 整 流 濾 波 器 50 切 換 開 關 60 驅 動 變 壓 器 70 迴 授 補 償 電 路 80 脈 波 見 度 調 變 器 90 程 式 控 制 器 早 元 100 電 壓 箝 制 器 110 隔 離 變 壓 器10 Filter 20 Programmable control isolation start circuit 25 Power converter 30 Power transformer 40 Rectifier filter 50 Diverter switch 60 Drive transformer 70 Feedback compensation circuit 80 Pulse visibility modulator 90 Program controller pre-element 100 Voltage clamp 110 Isolation transformer
第15頁 533661 _案號 圖式簡單說明 120 130 140 150 160 170 180 步驟41 0 步驟420 步驟4 3 0 步驟4 4 0 步驟4 5 0 步驟4 6 0 步驟4 7 0 步驟4 8 0 步驟5 1 0 步驟5 2 0 步驟5 3 0 步驟5 4 0 步驟5 5 0 步驟5 6 0 步驟5 7 0 步驟5 8 0 90122819_年月日 修正 切換開關 整流濾波器 弟一整流滤·波恭 輸入電壓檢知電路 電流感知電壓電路 驅動信號檢知電路 輔助電源電壓檢知電路 V i η輸入 由Ι/P檢知輸入電壓 判斷輸入電壓 責任週期比高 責任週期比低 0 / Ρ輸出脈波 經過m秒後,停止Ο/P輸出 延遲Page 15 533661 _ Case number diagram simple description 120 130 140 150 160 170 180 Step 41 0 Step 420 Step 4 3 0 Step 4 4 0 Step 4 5 0 Step 4 6 0 Step 4 7 0 Step 4 8 0 Step 5 1 0 Step 5 2 0 Step 5 3 0 Step 5 4 0 Step 5 5 0 Step 5 6 0 Step 5 7 0 Step 5 8 0 90122819_year month day correction switch switch rectifier filter Known circuit Current sensing voltage Circuit drive signal detection circuit Auxiliary power supply voltage detection circuit V i η Input is detected by I / P Input voltage is judged Input voltage duty cycle is lower than high duty cycle ratio 0 / Ρ Output pulse wave elapses after m seconds , Stop Ο / P output delay
Vin輸入 Ο/P輸出方波 經過m秒後,停止Ο/P輸出 由I / P檢知電壓 輸出有過流或短路發生 計時:T τ<κ 延遲Vin input 〇 / P output square wave After m seconds, stop 〇 / P output. I / P detects voltage. Output has overcurrent or short circuit. Timing: T τ < κ delay
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TWI394383B (en) * | 2008-01-10 | 2013-04-21 | Ind Tech Res Inst | Wireless multi-master controller group structure & addressing method thereof |
TWI399912B (en) * | 2003-11-21 | 2013-06-21 | Fairchild Semiconductor | Power converter and method for providing control in power converter |
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TWI399912B (en) * | 2003-11-21 | 2013-06-21 | Fairchild Semiconductor | Power converter and method for providing control in power converter |
TWI394383B (en) * | 2008-01-10 | 2013-04-21 | Ind Tech Res Inst | Wireless multi-master controller group structure & addressing method thereof |
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