M280501 容與-辅助繞組，並透過—啟動電阻連接至—輸人電麼。本創作之啟動裝 置使用-啟動㈣單元之輸人端連接於轉持電容，㈣刺連接到一切、 換開關之閘㈣，切換_之雜端連接於該轉電容，奴極端連接於 一控制電路。藉此’輸人賴源透過啟動電阻對維持電容進行充電，當維 持電容上之電壓達到—啟動電壓後，啟動控制單會控制該切換開關導 通以讓維持電谷上之電源可以提供給控制電路使用。 同時，該啟動控制單元中和前面敘述相同，第—箝位器與第二籍位考 依據該維輸棚㈣祕飾t，細⑽—肖蝴與第二 箝刪她細雌輸物之磁滞臨界電 要注意的是’以上的概述與接下來轉細說―範性f，是為了 =錄明本創作的中請專利細。而有關本創作的其他目的與優^將 在後績的說明與圖示加以闡述。 【實施方式】 明參考第―®，係為摘作制之電源供應 作啟動裝置係物-w議圖。本創 供應器時，啟崎置„始_，使得輸人賴、_加於電源 /屬心維持電容Cst進行充電。當該維持電容^上之電觀 、原=動電壓時，啟織置開始動作以提供切換式控制器ι^作所須之電 以源VIN透過切換式控制器％對—維持電容&充 7 M280501 電之充電路徑上，更進-步可以於其中串接_啟動電阻Rst，用來減緩啟動 所需時間。 繞組na會透過 當切換式控制器U2開始工作後，該變壓器1之一輔助 一二極體DA對該維持電容CST充電，以提供電源給切換式控制器^使用。 同時，本創作之啟絲置於啟職，會切斷輸人電壓源VIN對該維持電容 cST充電的充電路徑’以節省電源供絲之辨損耗。並且啟難置更利用M280501 Capacitor and-auxiliary winding, and is connected to-power input through-starting resistance. The starting device of this creation uses the input terminal of the start-up unit to be connected to the transfer capacitor, the stab to be connected to everything, the switch of the switch, the miscellaneous terminal of the switch is connected to the transfer capacitor, and the slave terminal is connected to a control circuit. . In this way, the input capacitor is charged by the start-up resistor. When the voltage on the hold-up capacitor reaches the start-up voltage, the start-up control unit will control the switch to be turned on, so that the power on the sustain valley can be provided to the control circuit. use. At the same time, the start-up control unit is the same as the previous description. The first clamp and the second position test are based on the secret t of the dimension loss shed, and the small clamp—Xiao Butterfly and the second clamp delete the magnet of her thin female input. Attention to hysteresis electricity is that the above overview and the following turn to elaborate-the general f is to record the patent details of this creation. The other purposes and advantages of this creation will be explained in the description and illustration of subsequent achievements. [Embodiment] Reference is made to the "-", which is a diagram of the starting device system for the power supply of the system. When creating the power supply, Qi Qi sets „start_”, so that the input power is added to the power supply / maintaining capacitor Cst for charging. When the electric value on the capacitor ^ is equal to the dynamic voltage, Kai Zhi sets Start the operation to provide the switching controller. The source VIN passes the switching controller through the switching controller.% Pair-maintaining capacitor & charge 7 M280501 electricity. On the charging path, you can go further and step in it. The resistor Rst is used to slow down the time required for startup. The winding na will pass through when the switching controller U2 starts to work. One of the transformers 1 assists a diode DA to charge the maintenance capacitor CST to provide power to the switching control. At the same time, the creation of Qisi in the creation will cut off the charging path of the input voltage source VIN to charge the maintenance capacitor cST to save the power supply's discerning loss. And Qiji makes more use
磁滯作用，以提供-磁滯臨界職範_為切換式控_U2啟動或停止供 電時之臨界電壓參考。 請參考第三圖’係為本創作第一實施例之啟動裝置電路示意圖。本創 作啟動裝置設置於第二騎示之場式控彻U2巾，並肋提供電源Vcc 給切換式控制器U2内部之-控制電路9〇使用。本創作之啟動裝置應用於 電源供應器之啟動，係直接連接到輸入電壓％或透過一啟動電阻RsT連接 到輸入電壓vIN ’並同時連接一維持電容Cst。啟動裝置係由一電晶體4〇、 每-啟動控制單元80及一切換開關63組成，該電晶體4。為一接面型場效電 晶體(JFET)，其具有__界糕，#其_端與源極端關電壓低於該負 臨界電壓時，即會進入截止狀態。 復參考第三圖，該電晶體4〇具有一源極端、一間極端及一沒極端，沒 極端連_輸人電_ & ’源極端與間極端連接到該啟動控制單元⑽。 3亥啟動控制早兀8〇係包括有：—第—p型電晶體Μ，其源極端連接到該維 持電谷cST’閘極端連接到—放大電路82，並透過—第—電阻&連接到該 維持電容QT ;—第—N型電晶體65，其汲極端連接到該第-P型電晶體 8 M280501 61之閘極端，源極端則連接一接地端GND ; 一第一箝位器&，連接於該第 一 p型電晶體61之源極端與汲極端間；及一第二箝位器厶，其一端連接於 。玄第P型電晶體61之〉及極端，另一端連接到第一 N型電晶體之閘極 • 端，並透過一第二電阻r2連接到該接地端GND。 復參考第三圖，該放大電路82包括有：一第二p型電晶體62，其閉極 端連接到該第- p型電晶體61之閘極端，其源極端連接於該維持電容 ST , -反向1 71，其一輸入端連接於該第二P型電晶體62之汲極端，一輸出端 係連接於該切換開關63與電晶體4〇之閘極端；及一第三 汉，豆—山 連接於該第三P型電晶體62之汲極端，另—端連接於該接地端伽〇。 上述說明中，該第-箝位器心與該第二箝位器z2皆為稽納二極體，其 各具有-崩潰電壓。該第-箝位器21與該第二箝位器^依據該維持電容 CST之電壓的上升而相繼崩潰，進而產生_第—箝位電壓Vi與—第二箱位 電壓V2作為一磁滯臨界電壓範圍。該第一箝位電壓％的電壓值係為第一 響 I备位器的崩潰電壓、第二箝位器的崩潰電壓及第二電阻端電壓之相加 值。該第二箝位電壓V2的電壓值係為該第二箝位器的崩潰電壓與該第二電 阻端電壓VR之相加值。 • 復參考第三圖，該切換開關63之閘極端連接於該放大電路82，源極端 、貝11連接到該維持電容CST，汲極端則連接到該控制電路90。按此，輸入電 壓Vm施加於電源供應器時，啟動裝置中之電晶體4〇即刻導通開始動作， 使得輸入電壓vw會直接或經由該啟動電阻Rst對該維持電容k進行充 電。當該維持電容CST上之電壓達到一啟動電壓時(該啟動電壓即為第一籍 9 M280501 位電壓ν,)，_-触器該第二箝位器&會產生崩潰，並於該第二 電阻r2兩端建立起端電壓vR，端電壓Vr使得第一 N型電晶體&導通。 第-Ν型電晶體65導通後會讓第—ρ型電晶體61之_端、該放大魏 82之輸出端、該切換開關63之閑極端及該電晶體4〇之閘極端連接到接地 端GND ’進而讓第- Ρ型電晶體61與該切換開關63也相繼導通。 由於電晶體40進入截止，進而切斷該輸入電壓源Vin對該維持電容q 充電的充電雜’用以㈣電祕應器之功率祕。該第―ρ型電晶體^ 導通後係將第-箱位器Zl短路讓其失去電壓箝位作用。由於切換開關Μ 進入導通，使__敝NAit_二極體Da_轉電容k提供之 電源可以透過該城開關63提供給控制電路9()使用。The hysteresis function is to provide the -Hysteresis critical duty _ as the switching voltage control_ U2 threshold voltage reference when starting or stopping power supply. Please refer to the third figure 'is a schematic diagram of the startup device circuit of the first embodiment of the creation. The original starting device is set in the field control U2 of the second riding show, and provides power Vcc to the control circuit 90 inside the switching controller U2. The starting device of this invention is used for starting the power supply. It is directly connected to the input voltage% or connected to the input voltage vIN ′ through a starting resistor RsT and at the same time connected to a sustaining capacitor Cst. The starting device is composed of a transistor 40, a per-start control unit 80, and a switch 63, the transistor 4. It is a junction field-effect transistor (JFET), which has __ 界 饼, #When its off-source voltage is lower than the negative threshold voltage, it will enter the cut-off state. Referring again to the third figure, the transistor 40 has a source terminal, a terminal terminal, and a terminal terminal. The terminal terminal is connected to the start and control terminal ⑽. The 30-year start-up control system includes:-the p-type transistor M, the source terminal of which is connected to the sustaining electric valley cST 'gate terminal is connected to the-amplifier circuit 82, and through-the first resistor & connection To the sustaining capacitor QT; the -N-type transistor 65, whose drain terminal is connected to the gate terminal of the -P-type transistor 8 M280501 61, and the source terminal is connected to a ground terminal GND; a first clamp & Connected between the source terminal and the drain terminal of the first p-type transistor 61; and a second clamp 厶, one end of which is connected to. The other end of the P-type transistor 61 is connected to the gate terminal of the first N-type transistor, and is connected to the ground terminal GND through a second resistor r2. Referring again to the third figure, the amplifying circuit 82 includes a second p-type transistor 62 whose closed terminal is connected to the gate terminal of the -p-type transistor 61 and whose source terminal is connected to the sustaining capacitor ST,- Inverse 1 71, one input terminal is connected to the drain terminal of the second P-type transistor 62, and one output terminal is connected to the switch terminal 63 and the gate terminal of the transistor 40; and a third han, bean- The mountain is connected to the drain terminal of the third P-type transistor 62, and the other terminal is connected to the ground terminal G0. In the above description, the first clamper core and the second clamper z2 are both audit diodes, each of which has a breakdown voltage. The first clamper 21 and the second clamper ^ successively collapse according to the rise of the voltage of the holding capacitor CST, and then generate the first clamp voltage Vi and the second tank voltage V2 as a hysteresis threshold. voltage range. The voltage value of the first clamping voltage% is the sum of the collapse voltage of the first response device, the collapse voltage of the second clamp device, and the second resistor terminal voltage. The voltage value of the second clamp voltage V2 is the sum of the breakdown voltage of the second clamp and the voltage of the second resistor terminal VR. • Referring again to the third figure, the gate terminal of the switch 63 is connected to the amplifying circuit 82, the source terminal and the terminal 11 are connected to the sustaining capacitor CST, and the drain terminal is connected to the control circuit 90. According to this, when the input voltage Vm is applied to the power supply, the transistor 40 in the starting device is immediately turned on and starts to operate, so that the input voltage vw will charge the holding capacitor k directly or via the starting resistor Rst. When the voltage on the holding capacitor CST reaches a starting voltage (the starting voltage is the first 9 M280501 bit voltage ν,), the _-contactor, the second clamper & will crash, and the first A terminal voltage vR is established across the two resistors r2, and the terminal voltage Vr makes the first N-type transistor & conductive. When the -N type transistor 65 is turned on, the _ terminal of the -ρ type transistor 61, the output terminal of the amplified Wei 82, the idle terminal of the switch 63, and the gate terminal of the transistor 40 are connected to the ground terminal. GND ′ further causes the P-type transistor 61 and the switch 63 to be turned on one after another. Since the transistor 40 enters the cut-off state, the charging capacitor 'charged by the input voltage source Vin to the sustaining capacitor q is cut off to save the power of the electric capacitor. After the “ρ” -type transistor ^ is turned on, the -box Zl is short-circuited to lose its voltage clamping effect. Since the switch M is turned on, the power provided by the __ 敝 NAit_diode Da_capacitor k can be provided to the control circuit 9 () through the city switch 63.
再者，由於第一箝位器Zl係被第一 p型電晶體61短路，因此該輔助 繞組凡透職：鋪Da_維持電容Qt提供之電源若是高於第二籍位 電壓V2，控制電路9〇齡繼紅作。反之，若是低於第二箝位電壓％， 該第二箝位器Z2係會無法進人崩潰織，進而使得第型電晶㈣、切 換開關63及第-N型電晶龍相纖止，而電晶體4()會進人導通。此時， 該控制電路90係會停止卫作，並錄等待該維持電容&再次被充電到該 啟動電壓，始可進行工作。 • =_中，該第—箝位電壓％與該第二箝位電壓V2作為一磁滯臨 界電堡關。也就是說，該轉電容CsT上之敎要高於第—箝位電壓％， 控制電路9G何啟動，電位要餅第二箝位健％，控制電㈣工作才 會停止。 M280501 該放大電路82係依據該第一 N型電晶體65之切換動作，以進行訊號 之放大’進而控制切換開關63導通同時控制電晶體40截止。切換開關63 進入導通，使得該維持電容Cst上之電源可以透過該切換開關63提供給控 ~ 制電路90使用。並且，電晶體4〇截止係可切斷該輸入電壓源Vin對該維持 電容CST充電的充電路徑，用以節省電源供應器之功率損耗。 復參考第三圖，在電源供應器啟動後，假使負載端發生短路致使輔助 $ 繞組na無法透過二極體Da對該維持電容Cst充電，此時第一 ^^型電晶體 65係為截止。透過放大電路82中之第一反向器71的輸入端被拉到接地端， 使得第一反向器71的輸出端係為高準位電壓。該高準位電壓將致使電晶體 40導通，使得電源供應器又開始進行重新啟動。 配合第二圖，請參考第四圖，係為本創作第二實施例之啟動裝置電路 不思圖。本創作第二實施例與第一實施例電路不同處，在於放大電路82中 之電子το件及其連接關係，並且本創作第二實施例所使用之電晶體45係為 •—金氧半場效電晶體⑽⑽印。本創作第二實施例所使用之放大電路，除 了第-實施例中原有之第二p型電晶體62、第_反向器71及第三電阻& 外更連接有一第二反向器72與一第二N型電晶體73。上述說明中，第 .電晶體62與第三電阻R3連接隱相同於第-實施例，第-反向器 _ 71輸出端連接於该切換開關63之閘極端與-第二反向器72之輸入端。第 N里電曰曰體73，其源極端連接於接地端GND，汲極端連接於電晶體45 之閘極端，閘極端連接於該第二反向器72之輸出端。 月多考第五圖，係為金氧半場效電晶體寄生電容等效示意圖。電晶體 11 M280501 45具有汲㈣、閘極G與源極S三個端點，-般的金氧半場效電晶體於製In addition, since the first clamp Zl is short-circuited by the first p-type transistor 61, the auxiliary winding is transparent: if the power provided by the Da_ sustaining capacitor Qt is higher than the second position voltage V2, the control circuit 90-year-old following the red crop. Conversely, if it is lower than the second clamping voltage%, the second clamp Z2 series will not be able to enter and collapse, which will cause the first type crystal transistor, the switch 63 and the -N type crystal dragon to stop. The transistor 4 () is turned on. At this time, the control circuit 90 will stop the satellite operation, and record and wait for the holding capacitor & to be charged to the starting voltage again before it can work. • = _, the first clamp voltage% and the second clamp voltage V2 are regarded as a magnetic hysteresis threshold. In other words, the voltage on the capacitor CsT must be higher than the first clamping voltage%, how can the control circuit 9G be started, and the potential to be the second clamping voltage, the control voltage will not stop. M280501 The amplifier circuit 82 is based on the switching action of the first N-type transistor 65 to amplify the signal ', and then controls the switch 63 to be turned on and the transistor 40 to be turned off. The switch 63 is turned on, so that the power on the holding capacitor Cst can be provided to the control circuit 90 through the switch 63. In addition, the transistor 40 cutoff can cut off the charging path of the input voltage source Vin for charging the maintenance capacitor CST, so as to save the power loss of the power supply. Referring again to the third figure, after the power supply is started, if the load terminal is short-circuited, the auxiliary $ winding na cannot charge the maintenance capacitor Cst through the diode Da. At this time, the first transistor 65 is turned off. The input terminal of the first inverter 71 in the amplifier circuit 82 is pulled to the ground terminal, so that the output terminal of the first inverter 71 is a high-level voltage. This high level voltage will cause the transistor 40 to be turned on, so that the power supply will start to restart again. With reference to the second figure, please refer to the fourth figure, which is a schematic diagram of a startup device circuit according to the second embodiment of the present invention. The circuit of the second embodiment of this creation is different from the circuit of the first embodiment in the electronic components and their connection relationship in the amplification circuit 82. The transistor 45 used in the second embodiment of this creation is a metal oxide half field effect. Transistor imprint. The amplifying circuit used in the second embodiment of this creation, in addition to the original second p-type transistor 62, the first inverter 71 and the third resistor & in the first embodiment, is connected to a second inverter 72 With a second N-type transistor 73. In the above description, the connection between the first transistor 62 and the third resistor R3 is the same as that in the first embodiment, and the output of the first inverter_71 is connected to the gate terminal of the switch 63 and the second inverter 72 Input. The N-th electric circuit is called the body 73, and its source terminal is connected to the ground terminal GND, the drain terminal is connected to the gate terminal of the transistor 45, and the gate terminal is connected to the output terminal of the second inverter 72. The fifth picture of the monthly test is the equivalent schematic diagram of the parasitic capacitance of the metal oxide half field effect transistor. Transistor 11 M280501 45 has three terminals: drain, gate G and source S, which are similar to metal-oxide half field effect transistors.
k後在各端點間會有寄生電容的效應，如第五圖所示，在汲極D與閘極G 間有寄线容9卜閘極G與源極S間有寄生電容92,雜D與源極8間 有寄電谷93所以虽金氧半場效電晶體Μ之沒極D通入電壓後，係 會於各祕間產生電壓降。此時，閘極G與源極§間之電壓為^，可由 下面公式（1)得知：After k, there will be the effect of parasitic capacitance between the terminals. As shown in the fifth figure, there is a line capacitance between the drain D and the gate G. 9 There is a parasitic capacitance between the gate G and the source S. 92 There is a sending valley 93 between D and the source 8. Therefore, although a voltage is applied to the non-pole D of the metal-oxide half-field-effect transistor M, a voltage drop occurs between the secret cells. At this time, the voltage between the gate G and the source § is ^, which can be obtained from the following formula (1):
、C91 + C92 夕 ....... ······♦ (1) 因此，當通入電壓％達到一定程度時，電晶體45之閘極G與源極s 間即會產生足夠之電壓VGS，用來驅動電aaa體45進行導通。 配合第五圖，復參考第四圖，因電晶體45具有寄生電容之特性，使得 本創作第二實施例於電源供應器啟動時係糊輸人電壓源VIN鷄電晶體 45進行導通，同時對維持電容Cst統。當該維持電容Cst上之電壓達到 -啟動電壓時，該第-箝位器Zl與該第二箝位器Z2會產生崩潰，並於該第 二電阻器R2兩端建立起端電壓Vr，端電壓Vr使得第一N型電晶體65導 通。第一 N型電晶體65導通後會讓第一 p型電晶體61、第二p型電晶體 62、邊切換開關63及苐一 N型電晶體73也相繼導通。導通之第二n型電 晶體73傳送一零電位到電晶體45之閘極端，以截止電晶體45，進而切斷 該輸入電壓源V1N對該維持電容CST充電的充電路徑，用以節省電源供應器 之功率損耗。 復參考第四圖，在電源供應器啟動後，假使負載端發生短路致使輔助 12 M280501 【圖式簡單說明】 第一圖為習知電源供應器電路結構示意圖； 第二圖為本創作使用之電源供應器電路結構示意圖； • 第三圖為本創作第一實施例之啟動裝置電路示意圖； 第四圖為本創作第二實施例之啟動裝置電路示意圖； 第五圖為金氧半場效電晶體寄生電容等效示意圖； φ 第六圖為本創作第三實施例之啟動裝置電路示意圖；及 第七圖為本創作第四實施例之啟動裝置電路示意圖。 【主要元件符號說明】 Rst電阻 CST電容 υι切換式控制器 Qi功率開關 乃變壓器 da二極體 T1變壓器 DA二極體 Qi功率開關 U2切換式控制器 Rst啟動電阻 CST維持電容 40電晶體 45電晶體 第一箝位器 z2第二箝位器 R2第二電阻 Ri第一電阻 R3第三電阻 (^升壓電容 Ra分壓電阻 Rb分壓電阻 61第一 P型電晶體 62第二P型電晶體 63切換開關 65N型電晶體 71第一反向器 72苐二反向器 80啟動控制單元 82放大電路 M280501, C91 + C92 ............ (1) Therefore, when the input voltage% reaches a certain level, sufficient power will be generated between the gate G and the source s of the transistor 45. The voltage VGS is used to drive the electric aaa body 45 to conduct. With reference to the fifth figure and the fourth figure, the transistor 45 has the characteristics of parasitic capacitance, which makes the second embodiment of the present invention to input the voltage source VIN chicken transistor 45 to turn on when the power supply is turned on. Maintain capacitor Cst system. When the voltage on the sustaining capacitor Cst reaches the -starting voltage, the first clamp Z1 and the second clamp Z2 will collapse, and a terminal voltage Vr is established across the second resistor R2. The voltage Vr causes the first N-type transistor 65 to be turned on. After the first N-type transistor 65 is turned on, the first p-type transistor 61, the second p-type transistor 62, the side switch 63, and the first N-type transistor 73 are also turned on one after another. The second n-type transistor 73 that is turned on transmits a zero potential to the gate terminal of the transistor 45 to cut off the transistor 45, and then cuts off the charging path of the input voltage source V1N to charge the maintenance capacitor CST to save power supply. Device power loss. Referring again to the fourth figure, after the power supply is started, if the load terminal is short-circuited, it will cause auxiliary 12 M280501. [Schematic description] The first picture is a schematic diagram of the circuit structure of a conventional power supply. The second picture is the power supply used in the creation. Schematic diagram of the circuit structure of the supplier; • The third diagram is the circuit diagram of the startup device of the first embodiment of the creation; the fourth diagram is the circuit diagram of the startup device of the second embodiment of the creation; Capacitance equivalent schematic diagram; φ The sixth diagram is a circuit diagram of the startup device of the third embodiment of the creation; and the seventh diagram is a circuit diagram of the startup device of the fourth embodiment of the creation. [Key component symbol description] Rst resistor CST capacitor υ switchable controller Qi power switch is a transformer da diode T1 transformer DA diode Qi power switch U2 switchable controller Rst start resistance CST maintenance capacitor 40 transistor 45 transistor First clamp z2 Second clamp R2 Second resistor Ri First resistor R3 Third resistor (^ Boost capacitor Ra voltage-dividing resistor Rb voltage-dividing resistor 61 First P-type transistor 62 Second P-type transistor 63 switch 65N type transistor 71 first inverter 72 second inverter 80 start control unit 82 amplifier circuit M280501
Na輔助繞組 GND接地端Na auxiliary winding GND ground terminal
1818