Μ3Ό7146 新型說明： 【新型所屬之技術領域】 本創作係有關於一種電源供應器，特別 【先前技術】 特L-種電祕之控制電路。 按，現今電源供應器之應用係相當廣泛，其 敕一 進而提供調整之輸出電源。考量使 ;^於m笔源’ 設置-保護電路，以保護電源供應器本身舆素:電源供應器必須 要的是讓電源供應H具有關電輯出之雜，贈二、之=°其中取為重 態(例如過载、短路、回授開路等）的期 =、應益在發生錯誤狀 因此，本創作之目的係提出-種物輸出，以避免發生危險。 供應器在倾躺之輸出《，鄉紅叙^ 路，其驗降低電源 【新型内容】 、 15 電壓=作二控:電路’其具有雙準位之低 第-低電_準位時，將雜制二::入電*低於 壓更低於第二低電齡貞準位時，控制電路將再次啟動电源桃’讀入電 本創作提供之電源供應器之控制電路，其包 用於增進電源供應器之保護。本創作之控制電路t 壓麵，以 20 八 =整電源供應器之輸出電源。保護電路在電源供應器發訊號 號，以控制該控制電路之電路的啟動與關閉。偵測電路—開關訊 位與第二低電壓拾鎖準位。 电路-有弟―低電壓备鎖準 &制$路的—輸人端输至—供應電容 ;_電==:_:進___路。#控===壓: 、 A t日電路產生啟動訊號與開關訊號，以啟動切編孔號。^ ^ 之後 5 25 M307146 供應電容將由電源供應器之 5 時，保護電路將禁能切換訊號，二。假若電源供應器發生錯誤狀態 電容放電而低於第一低電塵:==4谷開始放電。當輸入電壓透過供應 制而崎低電料^’，叫，控制電路巾之電路會受伽彳電路的控 壓透過供應電容放的放電時間。此外，一且輪入電 電路而再次朗。&於#—低·4胁鎖準位時，控魏路將受控於_ 切換：====_—位之放_，控制電路之 所以可嗔刪晴減少， 10’ 解盘㈣本雜之輯舰及所達叙功效更雜—步之睁 L貫施方式】 15 =有側繞組Νρ、一二次側繞組队與—辅助繞組Ν”其中，一次側她 未調整電壓VW。—電晶體2G經由-電流感測電阻25從該-ς ^ P=端連接至一接地端。電流感測電阻25用於將獅ι〇之— 1: Π:對供應電容咖 20 Γ電用於供應電源至控制電路100。—旦輸入電践到達控 制電路100之一啟動電壓時，控制電路1〇〇將開始運作。 =電路議更包括有-接地端GND、—電流感測端VI、—回授端FB與― t 。控制電路⑽之接地端G__地端。控制電路⑽之電流残 ^ VI接收感測電壓Vl。其中感測電壓Vi代表變壓器1〇之切換電流卜控制 ^路^)之回授端FB經由-雜合器58與_誤差放大器53 _至電源供應器 之-輪㈣，以侧電源供應ϋ之輸出_ v並在回授端fb產生—回授 ^控制電路⑽依據回授訊號Vfb與感測電壓％在控制電路⑽之輸出端冗 產生一切換訊B，以驅使電晶體别切換變壓器1Q，進而調整電源供應器之輪 25 M307146 出包壓V·。在變壓器1〇切換後，控制電路所需之電源 之辅助繞組Να透過—-搞辦训坦糾/ / 乂由、交壓器10 10將^:77拖—極體3〇 M、。假若電源供應器發生錯誤狀態時，變犀哭 10將化止切換，而且供應電容35將會放電。 — 波電t N：r端與電源供應器之輪出端之間。一遽 接於電源供應器之：端繞組他之另一端。電阻51、沾相串聯並輕 的-連接點。誤差放大哭正於之負輸入端聽接於電阻5卜52間 於電源供應刚齡—電阻_妾 10 。侧電路用於依據控制電路⑽祕又^ 140與一侧電路 一開關訊號0N，用以開啟/關門批以帝々 私二‘產生一啟動訊號SW與 15 更產生一供應電齡其用於^電二押之電路。此外，伽_ 經由回編输電路Γ之電路。切換電路⑽ 訊號__整電源供應ϋ之輸出糖·。Iu⑽換峨％。其中切換 第一—缝器 130、—正反器 150、-應器之輸出端，以在電=====軸接至電源供 反相器挪。第4較器η5 栓鎖請與一第一 較器m之負輸入端。第二比較器115之^ft茶考電壓—接於第二比 回授訊號V,。-旦電源供應器發生 ^^係連接至回授端FB，以接收 將產生—開迴路«0PL，以驅使計、‘«，第二比較器Π5 25當計時器300計數至設定時間後，計時哭3Γο ^大、1間汁數。 鎖器160之設定輸入端s。該拴鎖器_ 將傳达一拾鎖訊號LTH至栓 抑制訊號ΙΝΗ，並輸出至切換電路心以驅全=號™於輸出端Q產生一 *、、、使刀換電路105禁能切換訊號Vg。 7 M307146 拴鎖器160之重置輸入端R耦接於侧電路2〇 號现禁能抑制訊號歷。上述之抑制職通係透3伯測電路之啟動訊 換電路105之第—及間⑽的-輸入端。第一 反相器165傳送至切 補測電路·，以接收開關訊號⑽。第— ⑼之另-輸人端係連接至 之輸入端D。 輪出端則連接至正反器150 正反器150受控於振盪器13〇產生之一時脈訊號 「 反器150之重置輸入端R連接於第一比較哭11〇之 ^ (㈣_。正 負輸入端連接至控制電路刷之電 :=第-比較器no之 ισ 較謂之正輪入端稱接控制電路⑽之回授端v, °第一比 該第一及第三輸入端則分別連接於該振盪器⑽與 15 請參閱第’其為本_酬電路之計_之_較佳 如圖所不，本創作之計時器300包含有 ‘ y 1圖。 36〇 ^ 370 ^ 380 > 390 310 3.01 ' 340'35° ' 时13〇產生之時脈訊f#uCK致能正反器31〇，而正反器31〇 :由:盈 反器320 ’用以致能正反器卿。同於上述，正反器％ ^ ^係耦接正Μ3Ό7146 New description: [New technical field] This creation is about a power supply, especially [Prior Art] Special L-type electric control circuit. Press, today's power supply applications are quite extensive, which in turn provides a regulated output power supply. Considering; ^ in the m pen source 'set-protection circuit to protect the power supply itself: the power supply must have the power supply H has the power to shut out the mix, give two, where = ° For the period of heavy state (such as overload, short circuit, open circuit, etc.), the benefit is in the event of an error. Therefore, the purpose of this creation is to propose the output of the species to avoid danger. The output of the supplier is lying down, "Xianghong Xu Road", its power supply is reduced [new content], 15 voltage = two control: when the circuit has a low level - low power _ level, Miscellaneous 2:: When the power is lower than the voltage lower than the second low battery age, the control circuit will start the power supply again. The control circuit of the power supply provided by the electric notebook is read. Protection of the power supply. The control circuit of this creation t is pressed to the output power of the power supply. The protection circuit sends a signal number to the power supply to control the activation and deactivation of the circuit of the control circuit. Detection circuit—switching signal and second low voltage pickup level. Circuit - have brother - low voltage backup lock & system $ road - input terminal to supply - supply capacitor; _ electricity ==: _: into ___ way. #控===压: , A t day circuit generates start signal and switch signal to start the cut hole number. ^ ^ After 5 25 M307146 supply capacitor will be powered by the power supply 5 when the protection circuit will disable the switching signal, II. If the power supply has an error condition, the capacitor discharges below the first low dust: ==4 Valley begins to discharge. When the input voltage is transmitted through the supply and the low-voltage material is called, the circuit of the control circuit is subjected to the discharge time of the control of the gamma circuit through the supply capacitor. In addition, once again, the circuit is turned on again. & in the #-low·4 threat lock level, the control Wei Road will be controlled by _ switch: ====__ bit release _, the control circuit can be reduced, 10' solution (four) This miscellaneous ship and the narration function is more complicated - step 睁 L 施 】 】 15 = There are side winding Νρ, a secondary winding group and - auxiliary winding Ν", the primary side she did not adjust the voltage VW. - The transistor 2G is connected from the -ς^P= terminal to a ground via a current sensing resistor 25. The current sensing resistor 25 is used to apply the lion to the 1: Π: for the supply capacitor 20 The power supply is supplied to the control circuit 100. Once the input circuit reaches a starting voltage of the control circuit 100, the control circuit 1〇〇 will start to operate. The circuit discussion includes a grounding terminal GND, a current sensing terminal VI, - feedback terminal FB and - t. ground terminal G__ terminal of control circuit (10). Current residual voltage of control circuit (10) receives sensing voltage V1, wherein sensing voltage Vi represents switching current of transformer 1 ^) The feedback terminal FB via the -hybrid 58 and the _ error amplifier 53 _ to the power supply - wheel (four), with the side power supply ϋ output _ v The feedback terminal fb generation-receiving control circuit (10) generates a switching signal B at the output end of the control circuit (10) according to the feedback signal Vfb and the sensing voltage %, so as to drive the transistor to switch the transformer 1Q, thereby adjusting the power supply. The wheel 25 M307146 is out of the package voltage V. After the transformer 1〇 is switched, the auxiliary winding Να of the power supply required by the control circuit is transmitted through--------------------------------------------------------------------- —Pole body 3〇M. If the power supply has an error condition, the change of the rhinoceros 10 will stop the switch, and the supply capacitor 35 will discharge. — Wave power t N: r end and the power supply wheel Between the one end of the power supply: the other end of the end winding. The resistor 51, the dip phase is connected in series and the light-connection point. The error amplification is at the negative input and the input is connected to the resistor 5 The power supply is just age-resistance_妾10. The side circuit is used according to the control circuit (10) secret ^ 140 and one side circuit a switching signal 0N, used to open / close the door to create a start signal SW and 15 It also produces a circuit that supplies electricity to its power supply. In addition, gamma The circuit of the switching circuit (10) is switched to the output of the power supply I. Iu(10) 峨%, wherein the output of the first-stitcher 130, the flip-flop 150, and the --switch is switched. In the electric ===== shaft connected to the power supply for the inverter to move. The fourth comparator η5 latches with the negative input of a first comparator m. The second comparator 115 of the ^ft tea test voltage - connected to the second ratio feedback signal V, - the power supply is connected to the feedback terminal FB, the reception will generate - open circuit «0PL to drive the meter, '«, the second comparator Π 5 25 When the timer 300 counts up to the set time, the time is crying 3 Γ ο ^ large, 1 juice number. The input terminal s of the lock 160 is set. The latch _ will transmit a pickup signal LTH to the pin suppression signal ΙΝΗ, and output to the switching circuit core to drive the full number TM to generate a * at the output terminal Q, so that the knife switching circuit 105 disables the switching signal Vg. 7 M307146 The reset input terminal R of the shackle 160 is coupled to the side circuit 2 现 to disable the signal history. The above-mentioned suppression mechanism passes through the first and the (10)-input terminals of the start-up switching circuit 105 of the three-circuit measuring circuit. The first inverter 165 is sent to the trimming circuit to receive the switching signal (10). The other - (9) is connected to the input D. The wheel terminal is connected to the flip-flop 150. The flip-flop 150 is controlled by the oscillator 13 to generate a clock signal. "The reset input terminal R of the inverter 150 is connected to the first comparison crying." ((4) _. Positive and negative The input terminal is connected to the control circuit brush: = the first comparator is equal to the feedback terminal of the positive wheel input control circuit (10), and the first is different from the first and third input terminals respectively. Connected to the oscillator (10) and 15 please refer to the 'its _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ; 390 310 3.01 ' 340 '35 ° ' When 13 〇 generates the pulse signal f #uCK enables the flip-flop 31 〇, and the flip-flop 31 〇: by: the surplus counter 320 ' used to enable the pros and cons Same as above, the positive and negative device % ^ ^ is coupled positively
輕接至正反器330〜39〇，以分別致能正反器33〇〜39〇。正反器^之 ==別 係產生拾鎖訊號LTH。正反器310〜390之反相輸出端$，传八*鈿Q ’ 310^390 D 〇 310-390 R 之輸出端所產生之開迴路訊號〇PL 〇 —115 睛茶閱第四圖，其為本創作控制電路之债測電路之 圖，所示-W置21G與—“置211依據罐二== 參她。第，21_:裝請可綱：赌 盘第VD°t裝置211則與第一裝置2料聯連接。-電阻加 、衣置210以及第二裝置211串聯連接，用以偵側電壓。一第三 具有-第-臨界電壓Vthi。第三比較器22_於電阻215，以依據輪入乂電壓i 8 25 M3 07146 產生該啟動訊號SW。第三比較器220之正輸入端接收第一臨界電壓化^。第三比 較器220之負輸入端耦接於電阻215。第三比較器220之輸出端則連接於一第二 反相器239之輸入端。啟動訊號SW產生於第二反相器239之輸出端。 復參閱第四圖，一弟一開關235叙接控制電路1〇〇之輸入端糊y，用以接收 5輸入電壓第一開關235更耦接第一裝置210，以依據第三比較器22〇之輸 出而使第一裝置210短路，以及降低參考電壓。第三比較器22〇之輸出端更耦 接一第二開關236，以控制第二開關236。第二開關236耦接控制電路1〇〇之輸 入端VDD，以接收輸入電壓Vdd。一第四比較器221耦接於控制電路1〇〇之輸入 鲁端VDD。一旦啟動訊號SW致能時，第四比較器221則經由第二開關2祁與一分 1〇壓電路25(M貞測輸入電壓V⑽。其中分壓電路250包括有電阻251、252。電阻25卜 252與第二開關236和接地端串聯連接。第四比較器221包含有一第二臨界電壓Lightly connect to the flip-flops 330~39〇 to enable the flip-flops 33〇~39〇, respectively. The positive and negative device ^==Do not generate the pickup signal LTH. The inverting output terminal of the flip-flops 310 to 390 is transmitted, and the open circuit signal generated by the output of the terminal 钿 ' ' ' 310 310 310 310 310 310 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 115 For the picture of the debt measurement circuit of the creative control circuit, the -W is set to 21G and - "Set 211 according to the tank 2 == to participate in her. The first, 21_: installed please outline: the gambling disk VD °t device 211 and The first device 2 is connected in series. The resistors, the clothes 210 and the second device 211 are connected in series to detect the voltage. A third has a -th-threshold voltage Vthi. The third comparator 22_ is a resistor 215. The start signal SW is generated according to the turn-on voltage i 8 25 M3 07146. The positive input terminal of the third comparator 220 receives the first threshold voltage. The negative input terminal of the third comparator 220 is coupled to the resistor 215. The output of the third comparator 220 is connected to the input end of a second inverter 239. The start signal SW is generated at the output of the second inverter 239. Referring to the fourth figure, the first control switch 235 is connected to the control. The input end paste y of the circuit 1 is used to receive the 5 input voltage. The first switch 235 is further coupled to the first device 210 to be in accordance with the third comparator 22 . The output is shorted by the first device 210 and the reference voltage is lowered. The output of the third comparator 22 is further coupled to a second switch 236 to control the second switch 236. The second switch 236 is coupled to the control circuit 1 The input terminal VDD is configured to receive the input voltage Vdd. A fourth comparator 221 is coupled to the input luer terminal VDD of the control circuit 1. When the enable signal SW is enabled, the fourth comparator 221 is via the second switch 2祁 and one-point 1 voltage circuit 25 (M 输入 input voltage V (10). The voltage dividing circuit 250 includes resistors 251, 252. The resistor 25 252 is connected in series with the second switch 236 and the ground. The fourth comparator 221 includes a second threshold voltage
Vth2。第四比較器221之負輸入端接收第二臨界電壓Vth2。第四比較器221之正輸 入端祕至電阻况、252間的-連接點。第四比較器221之輸出端連接一检鎖 電路240。 ' 15 20 絲電路240包含有-第-反及閘242、一第二反及閘243、一第三反相器 41與-弟四反相器245。第四比較器221之輸出端連接第—反及閘⑽之第一 第三比較器220之輸出端係經由第三反相謂連接於第一反及閉⑽ 端。第三_ 22Q之輸_連接於第二反及_之。 接至第—反及閘242之第三輸入端。第一反及_ 相二245而二tt—反及閘243之另—輸人端。當啟動訊號SW致能時，第四反 相為245之輸出端將產生開關訊號〇N。 間242之輸出端。第一反及閘2 =相謂5之輸入端雛弟一反及 三開請接收輪入電壓Vdd，進而導通於—第三開_，以控制第 路。 或截止黾源傳輸至控制電路100中之電 第一臨界值VT1、十= 之訊號波形圖。圖示中顯示有一 第-_值v / 與—第三臨界值I其中第-臨界值Vn高於 弟界值VT2，弟二臨界值ντ2則高於第三臨界值^。如圖所示，在_， 25 M307146 輸=壓vDD高於第一臨界值Vti時，偵測電路2〇〇之啟動訊號sw與開關訊號⑽ 將^致能，以啟動控制電路·之電路。其中，第—臨界值L係決定於第一臨 "VTH1與褒置210、211之間的參考電壓。-旦控制電路100巾之電路被啟 動將會產生切換訊號VG，以切換變壓器10。之後，控制電路1〇〇之電源合進一 步由變壓器10之辅助繞組Na提供。 、曰 10 /假若，電源供應器發生錯誤狀態時，開迴路訊號0PL會在1\期間致能。之 L六响几號1瓶便月匕禁能切換訊號Vg。此時變壓器1〇將會停止切換，且供應 進行放電’以供應輸人電壓VDD至控制電路⑽。當輸人電壓^低於 弟界值VT2時，開關訊號⑽將被禁能，以關閉控制 i财之電路。料 :200之第二臨界電塵Vth2與電阻25卜252的比值決定第二臨界值VT2。 10^ 5 ^f,J^100 ^ 电，之包路關閉時，控制電路⑽會消耗一第二操作電流。 了輸入私麼VDD更低於第三臨界值Vt3時，啟動訊號SW將被荦能，此 %控制電路100僅消耗一啟叙中 、，0』丨， 丁低不此此 15 * 訊號SW被苹能時=== 100將再二侧。上述啟動 第三臨界值VT3係由第一=^；^=60受啟動訊號SW的控制而禁能。 於第二摔作㈣繁二界电屋VTH1與參考顏決定。上述的第一操作電流高 (斤、机，弟一刼作電流高於啟動電流。輸入電壓Vdd從第二碎尺信V 弟-低電壓拴鎖準位）放電至第三臨界 τ2 20 娜，控制電路⑽將停止切換，放電時間T2li; L之放電 以及改善魏供應m護。 胃日、b可iv低切換週期， 故本創作實為-具有新賴性、進步 利法專利㈣縣無疑 t«上者，應符合我國專 至感為禱。 友。冰出創作專利申請，析柄早曰賜准專利， 惟以上所述者，僅為本創作— 之範圍，故舉凡依本創作中請專利範‘用來限定本創作實施 均等變化與修飾，均應包括於本創作之申請專= 圍ΓΓ、特徵及精神所為之 10 25 M307146 【圖式簡單說明】 第一圖為電源供應器的電路示意圖； 弟一圖為本創作電源供應器之控制電路之一較佳貫施例的電路圖； ，三圖為本創作控制電路之計時器之一較佳實施例的電路圖； 5 =四圖為本創作控制電路之侧電路之—較佳實施例的電路圖；及 弟五圖為本創作較佳實施例之訊號波形圖。 【主要元件符號說明】 10 變壓器 • 20 電晶體 !〇 25 電流感測電随 30 二極體 31 啟動電阻 ,35 供應電容 40 整流器 !5 ~ 45 濾波電流 51 電阻 52 電阻 •3 誤差放大器 56 電阻 扣58 光耦合器 100 控制電路 105 切換電路 110 第一比較器 115 第二比較器 -5 120 第一及閘 125 第二及閘 130 振盪器 M307146 140 保護電路 150 正反器 160 栓鎖器 165 第一反相器 5 200 偵測電路 210 第一裝置 211 第二裝置 215 電阻 220 1 第三比較器 10 221 第四比較器 235 第一開關 236 第二開關 237 第三開關 239 第二反相器 15 ' 240 拴鎖電路 241 第三反相器 242 第一反及閘 « 私243 第二反及閘 245 第四反相器 20 250 分壓電路 251 電阻 252 電阻 300 計時器 310 正反器 25 320 正反器 330 正反器 340 正反器 12 M307146 350 正反器 360 正反器 370 正反器 380 正反器 5 390 正反器 CK 時脈訊號 D 輸入端 FB 回授端 GND 接地端 Ip 切換電流 INH 抑制訊號 LTH 拴鎖訊號 Np 一次側繞組 、Ns 二次側繞組 15* Na 輔助繞組 ON 開關訊號 OPL 開迴路訊號 輸出端 ·_ 反相輸出端 20 R 重置輸入端 S 設定輸入端 sw 啟動訊號 To 時間 Tl 時間 25 T2 放電周期 Vcc 供應電壓 Vdd 輸入電壓 13 M307146Vth2. The negative input terminal of the fourth comparator 221 receives the second threshold voltage Vth2. The positive input terminal of the fourth comparator 221 is secret to the resistance state and the connection point between the two terminals. The output of the fourth comparator 221 is coupled to a lockout circuit 240. The '15 20 wire circuit 240 includes a -th-reverse gate 242, a second inverse gate 243, a third inverter 41 and a fourth inverter 245. The output of the fourth comparator 221 is connected to the first and the third gate of the first and second gates 220. The output of the third comparator 220 is connected to the first and the closed (10) terminals via a third phase. The third _ 22Q loses _ connected to the second counter and _. Connected to the third input of the first-reverse gate 242. The first is the opposite of _ phase two 245 and two tt - the opposite of the gate 243 - the input end. When the enable signal SW is enabled, the output of the fourth inverted phase 245 will generate the switching signal 〇N. The output of the 242. The first anti-gate 2 = the input end of the phase 5, the younger brother, the opposite, the third open, please receive the wheel-in voltage Vdd, and then turn on the - third open_ to control the road. Or the signal waveform of the first critical value VT1 and ten= transmitted to the control circuit 100. The figure shows a first-value v / and a third critical value I, wherein the first critical value Vn is higher than the second value VT2, and the second critical value ντ2 is higher than the third critical value ^. As shown in the figure, when the _, 25 M307146 output = voltage vDD is higher than the first threshold value Vti, the detection signal sw and the switching signal (10) of the detecting circuit 2 are enabled to activate the circuit of the control circuit. The first critical value L is determined by the reference voltage between the first "VTH1 and the set 210, 211. Once the circuit of the control circuit 100 is activated, a switching signal VG is generated to switch the transformer 10. Thereafter, the power supply of the control circuit 1 is further supplied by the auxiliary winding Na of the transformer 10.曰 10 / If the power supply is in an error state, the open circuit signal 0PL will be enabled during 1\. The L-six ring number 1 bottle can be used to switch the signal Vg. At this time, the transformer 1〇 will stop switching, and the supply is discharged to supply the input voltage VDD to the control circuit (10). When the input voltage ^ is lower than the DF2, the switching signal (10) will be disabled to turn off the circuit that controls the financial system. The ratio of the second critical electric dust Vth2 to the resistance 25 252 of 200 determines the second critical value VT2. 10^ 5 ^f, J^100 ^ When the packet is closed, the control circuit (10) consumes a second operating current. When the input private VDD is lower than the third threshold Vt3, the startup signal SW will be enabled, and the % control circuit 100 consumes only one start, 0 丨, D low, no 15 * signal SW is When Ping can === 100 will be on the other side. The above-mentioned starting third threshold VT3 is disabled by the first =^;^=60 controlled by the start signal SW. In the second fall (four) complex two electric house VTH1 and reference Yan decided. The first operating current is high (jin, machine, and the current is higher than the starting current. The input voltage Vdd is discharged from the second broken-line V-low voltage shackle level) to the third critical value τ2 20 娜, The control circuit (10) will stop switching, discharge time T2li; L discharge and improve the Wei supply. Stomach day, b can be iv low switching cycle, so the creation is really - with new reliance, progress, patents (4) County undoubtedly t« the above, should be in line with the special feelings of our country. Friends. Ice has created a patent application, and the patent has been granted as soon as possible. However, the above-mentioned ones are only the scope of this creation—so the patents in this creation are used to limit the equal changes and modifications of this creation. Should be included in the application of this creation = cofferdam, characteristics and spirit for the 10 25 M307146 [Simple diagram of the diagram] The first diagram is the circuit diagram of the power supply; brother 1 is the control circuit of the author of the power supply A circuit diagram of a preferred embodiment; FIG. 3 is a circuit diagram of a preferred embodiment of a timer for authoring a control circuit; 5 = four diagrams are circuit diagrams of a preferred embodiment of a side circuit of the authoring control circuit; The fifth diagram of the present invention is a signal waveform diagram of the preferred embodiment of the present invention. [Main component symbol description] 10 Transformer • 20 transistor! 〇25 Current sense with 30 diode 31 start resistor, 35 supply capacitor 40 rectifier! 5 ~ 45 filter current 51 resistor 52 resistor • 3 error amplifier 56 resistor buckle 58 Optocoupler 100 Control Circuit 105 Switching Circuit 110 First Comparator 115 Second Comparator-5 120 First Gate 125 Second Gate 130 Oscillator M307146 140 Protection Circuit 150 Forwarder 160 Latch 165 First Inverter 5 200 detection circuit 210 first device 211 second device 215 resistance 220 1 third comparator 10 221 fourth comparator 235 first switch 236 second switch 237 third switch 239 second inverter 15 ' 240 拴 lock circuit 241 third inverter 242 first reverse gate « private 243 second reverse gate 245 fourth inverter 20 250 voltage divider circuit 251 resistor 252 resistor 300 timer 310 flip-flop 25 320 positive Counter 330 Positive and negative 340 Forward and reverse device 12 M307146 350 Forward and reverse device 360 Forward and reverse device 370 Forward and reverse device 380 Forward and reverse device 5 390 Positive and negative device CK Signal D Input FB Feedback terminal GND Ground terminal Ip Switching current INH Suppression signal LTH 拴 lock signal Np Primary winding, Ns Secondary winding 15* Na Auxiliary winding ON Switching signal OPL Open circuit signal output · _ Inverting output Terminal 20 R Reset input S Set input sw Start signal To Time Tl Time 25 T2 Discharge cycle Vcc Supply voltage Vdd Input voltage 13 M307146
Vfb 回授訊號 Vg 切換訊號 Vi 感測電壓 Vin 未調整電壓 5 V〇UT 輸出電壓 Vri 參考電壓 VR2 參考電壓 Vti 第一臨界值 _ ^ Vt2 第二臨界值 10 Vt3 第三臨界值 Vthi 第一臨界電壓 VtH2 第二臨界電壓 VDD 輸入端 VG 輸出端 15 VI 電流感測端 20 14Vfb feedback signal Vg switching signal Vi sensing voltage Vin unregulated voltage 5 V〇UT output voltage Vri reference voltage VR2 reference voltage Vti first threshold _ ^ Vt2 second threshold 10 Vt3 third threshold Vthi first threshold voltage VtH2 second threshold voltage VDD input terminal VG output terminal 15 VI current sensing terminal 20 14