TWI630774B - Power conversion device and method for preventing abnormal shutdown thereof - Google Patents

Power conversion device and method for preventing abnormal shutdown thereof Download PDF

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Publication number
TWI630774B
TWI630774B TW105110961A TW105110961A TWI630774B TW I630774 B TWI630774 B TW I630774B TW 105110961 A TW105110961 A TW 105110961A TW 105110961 A TW105110961 A TW 105110961A TW I630774 B TWI630774 B TW I630774B
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standby
power supply
supply module
power
operating voltage
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TW105110961A
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TW201737588A (en
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陳迪特
黃兆億
陳國誠
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群光電能科技股份有限公司
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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Abstract

一種防止電源轉換裝置異常關機之方法，包含如下步驟：提供電源轉換裝置，包含主供電模組及待機供電模組，待機供電模組電連接於主供電模組，並提供主供電模組之複數微控制器所需之運作電壓；於電源轉換裝置進入非待機模式且待機供電模組之待機電源轉換器停止工作時，執行運作電壓監測程序以監測運作電壓；以及於運作電壓小於最低補償電壓之前，強制啟動待機電源轉換器運作，以避免電源轉換裝置異常關機。 A method for preventing abnormal shutdown of a power conversion device includes the following steps: providing a power conversion device, including a main power supply module and a standby power supply module, wherein the standby power supply module is electrically connected to the main power supply module, and provides a plurality of main power supply modules The operating voltage required by the microcontroller; when the power conversion device enters the non-standby mode and the standby power converter of the standby power supply module stops working, the operating voltage monitoring program is executed to monitor the operating voltage; and before the operating voltage is less than the minimum compensation voltage , forced start standby power converter operation to avoid abnormal shutdown of the power conversion device.

Description

電源轉換裝置及防止電源轉換裝置異常關機之方法 Power conversion device and method for preventing abnormal shutdown of power conversion device

本發明是關於電源控制方法，且特別是關於防止電源轉換裝置脫離待機模式時，因操作電力過低而異常關機之方法。 The present invention relates to a power supply control method, and more particularly to a method for preventing an abnormal shutdown of a power conversion device when the power conversion device is out of the standby mode due to an excessively low operating power.

電源轉換裝置通常是用來輸送電力以滿足電子裝置需求的基本電力供應單元。為了在電子裝置的負載能力高時，提高電源轉換裝置的輸出功率以符合電子裝置的負載能力，以及在電子裝置的負載能力低時，降低電源轉換裝置的輸出功率以節省能源。電源轉換裝置可經設計使具有兩組電源轉換模組，其中一組電源轉換模組(以下稱主電源轉換模組)用以提供電子裝置在高負載能力操作下的電力，另一組電源轉換模組(以下稱待機電源轉換模組)則用以提供電子裝置在低負載能力操作下的電力。如此的設計雖然是一個最為簡便的方法，卻也造成電源轉換裝置在電子裝置由低負載能力進入高負載能力操作時，因用以提供電力的電源轉換模組不同但地端卻連在一起，待機電源轉換模組空負載或極輕負載時易受主電源轉換模組由低載進入高負載的影響，而產生異常當機。 Power conversion devices are typically basic power supply units that are used to deliver power to meet the needs of electronic devices. In order to increase the output power of the power conversion device to meet the load capacity of the electronic device when the load capacity of the electronic device is high, and to reduce the output power of the power conversion device to save energy when the load capacity of the electronic device is low. The power conversion device can be designed to have two sets of power conversion modules, one set of power conversion modules (hereinafter referred to as main power conversion modules) for providing power of the electronic device under high load capacity operation, and another set of power conversion The module (hereinafter referred to as the standby power conversion module) is used to provide power for the electronic device under low load capacity operation. Although such a design is the easiest method, it also causes the power conversion device to operate when the electronic device is operated from a low load capacity to a high load capacity, because the power conversion modules for supplying power are different but the ground ends are connected. When the standby power conversion module has an empty load or an extremely light load, it is susceptible to the influence of the main power conversion module from low load to high load, and an abnormal crash occurs.

依據本發明提供一種防止電源轉換裝置異常關機之方法，包含如下步驟。提供電源轉換裝置，包含主供電模組及待機供電模組，待機供電模組電連接於主供電模組，並提供主供電模組之複數微控制器所需之運作電壓；於電源轉換裝置進入非待機模式且待機供電模組之待機電源轉換器停止工作時，執行運作電壓監測程序以監測運作電壓；以及於運作電壓小於最低補償電壓之前，強制啟動待機電源轉換器運作，以避免電源轉換裝置異常關機。 According to the present invention, there is provided a method for preventing abnormal shutdown of a power conversion device, comprising the following steps. Providing a power conversion device, comprising a main power supply module and a standby power supply module, wherein the standby power supply module is electrically connected to the main power supply module, and provides a working voltage required by the plurality of microcontrollers of the main power supply module; In the non-standby mode and the standby power converter of the standby power supply module stops working, the operating voltage monitoring program is executed to monitor the operating voltage; and before the operating voltage is less than the minimum compensation voltage, the standby power converter is forcibly started to operate to avoid the power conversion device. Abnormal shutdown.

依據本發明另提供一種電源轉換裝置，包含主供電模組及待機供電模組。主供電模組包含複數微控制器。待機供電模組用以提供微控制器之運作電壓，待機供電模組包含運作電壓供應單元、待機電源控制器及電壓調整單元。運作電壓供應單元連接於待機電源控制器，電壓調整單元電連接於待機電源控制器及微控制器。待機電源控制器係於待機電源轉換器停止工作且運作電壓小於最低補償電壓之前，強制啟動待機電源轉換器，以避免電源轉換裝置異常關機。 According to the present invention, a power conversion device includes a main power supply module and a standby power supply module. The main power supply module includes a plurality of microcontrollers. The standby power supply module is used to provide the operating voltage of the microcontroller, and the standby power supply module includes an operating voltage supply unit, a standby power controller, and a voltage adjustment unit. The operating voltage supply unit is connected to the standby power controller, and the voltage adjusting unit is electrically connected to the standby power controller and the microcontroller. The standby power controller forcibly starts the standby power converter before the standby power converter stops operating and the operating voltage is less than the minimum compensation voltage to avoid abnormal shutdown of the power conversion device.

10‧‧‧電源轉換裝置 10‧‧‧Power conversion device

100‧‧‧主供電模組 100‧‧‧Main power supply module

102‧‧‧微控制器 102‧‧‧Microcontroller

104‧‧‧初級側整流器 104‧‧‧Primary side rectifier

106‧‧‧功率因素校正器 106‧‧‧Power factor corrector

110‧‧‧主電源轉換器 110‧‧‧Main power converter

112‧‧‧次級側整流器 112‧‧‧Secondary side rectifier

114‧‧‧次級側濾波器 114‧‧‧Secondary side filter

120‧‧‧待機供電模組 120‧‧‧Standby power supply module

122‧‧‧待機電源轉換器 122‧‧‧Standby power converter

124‧‧‧第一整流單元 124‧‧‧First rectification unit

126‧‧‧整流元件 126‧‧‧Rectifying components

128‧‧‧待機電源控制器 128‧‧‧Standby power controller

130‧‧‧電壓調整單元 130‧‧‧Voltage adjustment unit

132‧‧‧橋式整流器 132‧‧‧Bridge rectifier

134‧‧‧輸入級濾波器 134‧‧‧Input stage filter

136‧‧‧輸出級濾波器 136‧‧‧Output filter

138‧‧‧直流電容器 138‧‧‧DC capacitor

20‧‧‧電子裝置 20‧‧‧Electronic devices

A、B‧‧‧節點 A, B‧‧‧ nodes

V1‧‧‧待機電壓 V1‧‧‧Standby voltage

V2‧‧‧迴路電壓 V2‧‧‧ loop voltage

Vin‧‧‧輸入電源 Vin‧‧‧Input power supply

Wa‧‧‧輔助繞組 Wa‧‧‧Auxiliary winding

Wp‧‧‧初級繞組 Wp‧‧‧ primary winding

Ws‧‧‧次級繞組 Ws‧‧‧second winding

圖1繪示依照本發明之電源轉換裝置之一電路方塊圖；圖2繪示依照本發明之電源轉換裝置之另一電路方塊圖；以及圖3繪示依照本發明之操作電壓供應單元的輸出電壓-時間圖。 1 is a circuit block diagram of a power conversion device in accordance with the present invention; FIG. 2 is a block diagram of another circuit of the power conversion device in accordance with the present invention; and FIG. 3 is a diagram showing the output of the operating voltage supply unit in accordance with the present invention. Voltage-time diagram.

請參照圖1，其繪示依照本發明之電源轉換裝置之一電路方塊圖。電源轉換裝置10接收輸入電源Vin，並提供連接於其輸出端之電子裝置20在不同操作狀態下的電力。電子裝置20可例如為個人電腦或 伺服器。電源轉換裝置10可依電子裝置20的抽載電力的不同而操作於待機模式或非待機模式。一般來說，當電子裝置20進入空載操作時，電源轉換裝置10進入待機模式，以降低功耗而提高整體效率；當電子裝置20進入中載或重載操作時，電源轉換裝置10脫離待機模式並進入非待機模式，提高供電能力以因應電子裝置20的抽載。電子裝置20操作於中載或重載時的抽載電力會大於其在空載時的抽載電力。 Referring to FIG. 1, a circuit block diagram of a power conversion device in accordance with the present invention is shown. The power conversion device 10 receives the input power source Vin and provides power for the electronic device 20 connected to its output in different operating states. The electronic device 20 can be, for example, a personal computer or server. The power conversion device 10 can operate in a standby mode or a non-standby mode depending on the pumping power of the electronic device 20. Generally, when the electronic device 20 enters the no-load operation, the power conversion device 10 enters a standby mode to reduce power consumption and improve overall efficiency; when the electronic device 20 enters a medium-load or heavy-load operation, the power conversion device 10 is out of standby. The mode enters the non-standby mode, and the power supply capability is increased to cope with the pumping of the electronic device 20. The load power of the electronic device 20 operating at medium or heavy load may be greater than the pump power at no load.

電源轉換裝置10包含主供電模組100及待機供電模組120，主供電模組100及待機供電模組120分別電連接於輸入電源Vin及電子裝置20，待機供電模組120更電連接於主供電模組100。當電子裝置20操作於待機模式時，由待機供電模組120提供電子裝置20操作電力；當電子裝置20操作於非待機模式時，主供電模組100及待機供電模組120可分別提供電子裝置20操作電力。此外，不論電子裝置20是操作在待機模式或非待機模式，待機供電模組120都供應直流運作電壓給主供電模組100，以維持主供電模組100內部微控制器102(如圖2所示)的運作(詳見後述)。 The power conversion device 10 includes a main power supply module 100 and a standby power supply module 120. The main power supply module 100 and the standby power supply module 120 are electrically connected to the input power source Vin and the electronic device 20, respectively, and the standby power supply module 120 is electrically connected to the main device. Power supply module 100. When the electronic device 20 is in the standby mode, the standby power supply module 120 provides the operating power of the electronic device 20; when the electronic device 20 operates in the non-standby mode, the main power supply module 100 and the standby power supply module 120 can respectively provide the electronic device. 20 operating power. In addition, whether the electronic device 20 is operating in the standby mode or the non-standby mode, the standby power supply module 120 supplies the DC operating voltage to the main power supply module 100 to maintain the internal microcontroller 102 of the main power supply module 100 (as shown in FIG. 2). The operation of the show (see below).

請參閱圖2，主供電模組100可包含初級側整流器104、功率因素校正器106、主電源轉換器110、次級側整流器112及次級側濾波器114。初級側整流器104電連接於輸入電源Vin，輸入電源Vin可例如為市電交流電。功率因素校正器106電連接於初級側整流器104及主電源轉換器110之間。次級側整流器112電連接於主電源轉換器110及次級側濾波器114之間，次級側濾波器114電連接於電子裝置20。 Referring to FIG. 2 , the main power supply module 100 may include a primary side rectifier 104 , a power factor corrector 106 , a main power converter 110 , a secondary side rectifier 112 , and a secondary side filter 114 . The primary side rectifier 104 is electrically connected to the input power source Vin, and the input power source Vin may be, for example, a commercial power source. The power factor corrector 106 is electrically coupled between the primary side rectifier 104 and the main power converter 110. The secondary side rectifier 112 is electrically connected between the main power converter 110 and the secondary side filter 114, and the secondary side filter 114 is electrically connected to the electronic device 20.

初級側整流器104可例如為橋式整流器。當電子裝置20操作於非待機模式時，輸入電源Vin提供的交流電力經初級側整流器104整流後，經功率因素校正器106進行功率校正，以及主電源轉換器110的轉換後，進入次級側整流器112。次級側整流器112可例如是同步整流器；主電源轉換器110輸出的電力經次級側整流器112整流後，再經由次級側濾波器114濾波後成為直流電力，供給電子裝置20。 The primary side rectifier 104 can be, for example, a bridge rectifier. When the electronic device 20 is operated in the non-standby mode, the AC power supplied from the input power source Vin is rectified by the primary side rectifier 104, subjected to power correction by the power factor corrector 106, and after the conversion of the main power converter 110, enters the secondary side. Rectifier 112. The secondary side rectifier 112 can be, for example, a synchronous rectifier; the power output from the main power converter 110 is rectified by the secondary side rectifier 112, filtered by the secondary side filter 114, and then supplied to the electronic device 20 as DC power.

如圖2所示，微控制器102可例如是設於功率因素校正器106、主電源轉換器110及次級側整流器112中，並依據電子裝置20的抽載來控制功率因素校正器106、電源轉換器110及次級側整流器112中的功率開關的操作狀態。 As shown in FIG. 2, the microcontroller 102 can be disposed, for example, in the power factor corrector 106, the main power converter 110, and the secondary side rectifier 112, and controls the power factor corrector 106 according to the pumping of the electronic device 20. The operational state of the power switches in the power converter 110 and the secondary side rectifier 112.

更具體來說，當電子裝置20操作於中載或重載時，設於功率因素校正器106中的微控制器102會驅動功率因素校正器106進行功率因素校正功能，設於主電源轉換器110中的微控制器102會驅動主電源轉換器110進行電力轉換，次級側整流器112中的微控制器102會驅動次級側整流器112進行整流，以提供具有高功率因素的電力予電子裝置20。反之，當電子裝置20操作於空載時，因電子裝置20的操作電力由待機供電模組120提供，主供電模組100進入休眠操作，微控制器102的運作電壓隨之降低，故待機供電模組120只需要提供極低的電力給微控制器102，以使微控制器102能夠在電子裝置20脫離待機模式(即進入非待機模式)時快速地被喚醒，藉以降低電源轉換裝置10在空載操作時的功率損耗並達成節能功效。在此要特別說明的是，在前述狀態下，待機電源控制器128可以藉由改變傳遞至待機 電源轉換器122之控制信號的占空比來調整傳遞至微控制器102之運作電壓的位準。 More specifically, when the electronic device 20 is operated at a medium load or a heavy load, the microcontroller 102 provided in the power factor corrector 106 drives the power factor corrector 106 to perform a power factor correction function, which is provided in the main power converter. The microcontroller 102 in 110 drives the main power converter 110 for power conversion, and the microcontroller 102 in the secondary side rectifier 112 drives the secondary side rectifier 112 to rectify to provide power to the electronic device with high power factor. 20. On the contrary, when the electronic device 20 is operated at no load, the operating power of the electronic device 20 is provided by the standby power supply module 120, and the main power supply module 100 enters the sleep operation, and the operating voltage of the microcontroller 102 is reduced, so the standby power supply is provided. The module 120 only needs to provide extremely low power to the microcontroller 102 to enable the microcontroller 102 to be quickly woken up when the electronic device 20 is out of the standby mode (ie, enters the non-standby mode), thereby reducing the power conversion device 10 Power loss during no-load operation and energy saving. It should be particularly noted here that in the foregoing state, the standby power controller 128 can be transferred to standby by changing. The duty cycle of the control signal of power converter 122 adjusts the level of operating voltage delivered to microcontroller 102.

請再參閱圖2，待機供電模組120至少包含待機電源轉換單元(未另標號)、第一整流單元124、整流元件126、待機電源控制器128及電壓調整單元130。待機電源轉換單元包含待機電源轉換器122、初級繞組Wp、次級繞組Ws及輔助繞組Wa，次級繞組Ws及輔助繞組Wa分別與初級繞組Wp電磁耦合；藉由調整次級繞組Ws、輔助繞組Wa分別與初級繞組Wp的匝數比，可以改變待機供電模組120供給電子裝置20的空載直流電力的位準，以及待機供電模組120提供給微控制器102的運作電力的位準。 Referring to FIG. 2 again, the standby power supply module 120 includes at least a standby power conversion unit (not labeled), a first rectifying unit 124, a rectifying element 126, a standby power controller 128, and a voltage adjusting unit 130. The standby power conversion unit includes a standby power converter 122, a primary winding Wp, a secondary winding Ws, and an auxiliary winding Wa, and the secondary winding Ws and the auxiliary winding Wa are respectively electromagnetically coupled with the primary winding Wp; by adjusting the secondary winding Ws, the auxiliary winding The turns ratio of the Wa to the primary winding Wp respectively can change the level of the no-load DC power supplied by the standby power supply module 120 to the electronic device 20 and the level of the operating power supplied by the standby power supply module 120 to the microcontroller 102.

待機供電模組120還可以包含設在輸入電源Vin及待機電源轉換器122之間的橋式整流器132及輸入級濾波器134，以及設在第一整流單元124及電子裝置20之間的輸出級濾波器136。 The standby power supply module 120 may further include a bridge rectifier 132 and an input stage filter 134 disposed between the input power source Vin and the standby power converter 122, and an output stage disposed between the first rectifying unit 124 and the electronic device 20. Filter 136.

待機電源轉換器122連接於輸入電源Vin，用以將輸入電源Vin先經過橋式整流器132、輸入級濾波器134及待機電源轉換器120適當的轉換後通過初級繞組Wp耦合至次級繞組Ws及輔助繞組Wa。耦合至次級繞組Ws的電力經第一整流單元124整流及輸出級濾波器136濾波後傳遞至電子裝置20。再者，耦合至輔助繞組Wa的電力經整流元件126整流後傳遞至待機電源控制器128。 The standby power converter 122 is connected to the input power source Vin for appropriately converting the input power source Vin through the bridge rectifier 132, the input stage filter 134 and the standby power converter 120, and then coupling to the secondary winding Ws through the primary winding Wp and Auxiliary winding Wa. The power coupled to the secondary winding Ws is rectified by the first rectifying unit 124 and filtered by the output stage filter 136 and transmitted to the electronic device 20. Furthermore, the power coupled to the auxiliary winding Wa is rectified by the rectifying element 126 and transmitted to the standby power controller 128.

電壓調整單元130電連接於微控制器102及待機電源控制器128，並具有監測待機電源轉換器122的工作狀態(即待機電源轉換器122是否停止工作)，以及強制啟動待機電源轉換器122的功能。在此定義 初級繞組Wp、輔助繞組Wa、整流元件126及直流電容器138配合組成運作電壓供應單元(未另標號)。 The voltage adjustment unit 130 is electrically connected to the microcontroller 102 and the standby power controller 128, and has an operation state of monitoring the standby power converter 122 (ie, whether the standby power converter 122 stops operating), and forcibly starting the standby power converter 122. Features. Defined here The primary winding Wp, the auxiliary winding Wa, the rectifying element 126, and the DC capacitor 138 cooperate to form an operating voltage supply unit (not otherwise labeled).

一般來說，電源轉換裝置10的主供電模組100及待機供電模組120的輸出級(或稱二次側)共地，即主供電模組100及待機供電模組120分別連接至圖1所示的地端GND。因此，當電源轉換裝置10在待機模式操作時，電子裝置20由空載進入中/重載操作時而使電源轉換裝置10脫離待機模式並進入非待機模式時，待機供電模組120會因為電子裝置20的抽載電流上升而停止工作。 Generally, the output stage (or the secondary side) of the main power supply module 100 and the standby power supply module 120 of the power conversion device 10 are commonly connected, that is, the main power supply module 100 and the standby power supply module 120 are respectively connected to FIG. 1 . Ground GND as shown. Therefore, when the power conversion device 10 is operating in the standby mode, when the electronic device 20 enters the standby mode and enters the non-standby mode when the power conversion device 10 is idling into the medium/heavy operation, the standby power supply module 120 may be electronically The pumping current of the device 20 rises and stops working.

更具體言之，當電子裝置20由輕載進入中/重載操作時，電源轉換裝置10脫離待機模式，主供電模組100由休眠操作中被喚醒以供輸出電子裝置20抽載電力，微控制器102的運作電壓隨之提高。然而，因主供電模組100及待機供電模組120在輸出級共地，故在電子裝置20脫離待機模式時，待機供電模組120的輸出電壓除了原本就要輸出給電子裝置20的待機電壓V1(如圖1所示)外，更包含了主供電模組100輸出電流在待機供電模組120之輸出迴路產生的迴路電壓V2(如圖1所示)，即：VSB=V1+V2其中，VSB待機供電模組120的總輸出電壓；V1為待機供電模組120輸出給電子裝置20之待機電壓；以及V2為電源轉換裝置10脫離待機模式時，主供電模組100的輸出電流在待機供電模組120的輸出迴路產生之迴路電壓。 More specifically, when the electronic device 20 is operated from the light load to the medium/heavy load, the power conversion device 10 is released from the standby mode, and the main power supply module 100 is awakened by the sleep operation for the output electronic device 20 to draw power. The operating voltage of the controller 102 is thus increased. However, since the main power supply module 100 and the standby power supply module 120 are common in the output stage, when the electronic device 20 is out of the standby mode, the output voltage of the standby power supply module 120 is outputted to the standby voltage of the electronic device 20. V1 (shown in FIG. 1) further includes a loop voltage V2 generated by the output current of the main power supply module 100 in the output loop of the standby power supply module 120 (as shown in FIG. 1), that is, V SB = V1 + V2. The total output voltage of the V SB standby power supply module 120; V1 is the standby voltage output from the standby power supply module 120 to the electronic device 20; and V2 is the output current of the main power supply module 100 when the power conversion device 10 is out of the standby mode. The loop voltage generated in the output loop of the standby power supply module 120.

在此情況下，若待機供電模組120的總輸出電壓VSB超過其預設最大輸出電壓時，待機電源控制器128便會讓待機電源轉換器122停止電力轉換。如此一來，主供電模組100中的微控制器102在非待機模式操作下的運作電力就必須由直流電容器138提供。若直流電容器138所能提供的直流電壓低於電源轉換模組10的預設最低補償電壓時，便會造成電源轉換裝置10異常關機。 In this case, if the total output voltage V SB of the standby power supply module 120 exceeds its preset maximum output voltage, the standby power controller 128 causes the standby power converter 122 to stop power conversion. As a result, the operating power of the microcontroller 102 in the main power supply module 100 in the non-standby mode operation must be provided by the DC capacitor 138. If the DC voltage that the DC capacitor 138 can provide is lower than the preset minimum compensation voltage of the power conversion module 10, the power conversion device 10 will be abnormally shut down.

在此要特別說明的是，每個微控制器102都具有一個低封鎖電壓UVLO；其中，當傳遞至微控制器102的電壓小於低封鎖電壓UVLO時，微控制器102便停止工作。再者，每個微控制器102的低封鎖電壓UVLO皆不同；在此定義所有微控制器102的低封鎖電壓UVLO中的最大值為UVLO(max)。當運作電壓產生單元產生且傳遞至待機電源控制器128的電力為VA(即圖2所示節點A電壓)，微控制器102在非待機模式下的需求運作電壓為VB(即圖2所示節點B的電壓)，電源轉換裝置10在非待機模式操作時預設的預設最低補償電壓VC，滿足下列條件：VC=VA-(VB-UVLO(max))。 It is specifically noted herein that each microcontroller 102 has a low blocking voltage UVLO; wherein when the voltage delivered to the microcontroller 102 is less than the low blocking voltage UVLO, the microcontroller 102 ceases to operate. Moreover, the low blocking voltage UVLO of each microcontroller 102 is different; here the maximum value of the low blocking voltage UVLO of all microcontrollers 102 is defined as UVLO(max). When the power generated by the operating voltage generating unit and transmitted to the standby power controller 128 is VA (ie, the node A voltage shown in FIG. 2), the demand operating voltage of the microcontroller 102 in the non-standby mode is VB (ie, as shown in FIG. 2). The voltage of the node B), the preset minimum compensation voltage VC preset by the power conversion device 10 when operating in the non-standby mode, satisfies the following condition: VC = VA - (VB - UVLO (max)).

為了避免電源轉換裝置10發生異常關機，在電源轉換裝置10脫離待機模式並進入非待機模式，且待機電源轉換器122停止工作時，待機電源控制器128會開始執行電壓監測程序以監測運作電壓供應單元的輸出電壓。進一步地，待機電源控制器128會在直流電容器138所能提供的直流電壓(即VA)不大於預設的最低補償電壓(即VC)之前(如圖3時間點t0所示)，強制啟動待機電源轉換器122運作，進行 轉換後的電力經初級繞組Wp耦合至輔助繞組Wa，並經整流元件126整流後通過電壓調整單元130傳遞至微控制器102。直流電容器138進入充電程序。藉此，電壓供應單元的輸出電壓提高(如圖3時間點t0~t1所示)。當操作電壓供應單元所能提供的直流電壓高於最低補償電壓(即VC)一定值時，待機電源控制器128便停止運作電壓監測程序以停止強迫待機電源轉換器122運作。 In order to avoid abnormal shutdown of the power conversion device 10, when the power conversion device 10 is out of the standby mode and enters the non-standby mode, and the standby power converter 122 stops operating, the standby power controller 128 starts to execute a voltage monitoring program to monitor the operating voltage supply. The output voltage of the unit. Further, the standby power controller 128 will force the standby to start before the DC voltage (ie, VA) that the DC capacitor 138 can provide is not greater than the preset minimum compensation voltage (ie, VC) (as shown in time point t0 of FIG. 3). The power converter 122 operates and performs The converted power is coupled to the auxiliary winding Wa via the primary winding Wp, rectified by the rectifying element 126, and passed to the microcontroller 102 via the voltage regulating unit 130. The DC capacitor 138 enters the charging process. Thereby, the output voltage of the voltage supply unit is increased (as shown by time point t0 to t1 in FIG. 3). When the DC voltage that the operating voltage supply unit can provide is higher than the minimum compensation voltage (ie, VC), the standby power controller 128 stops operating the voltage monitoring program to stop the forced standby power converter 122 from operating.

綜上所述，本發明的防止電源轉換裝置異常關機之方法可由如下步驟實現之：首先，提供電源轉換裝置10，此電源轉換裝置10包含主供電模組100及待機供電模組120，待機供電模組120電連接於主供電模組100。主供電模組100用以於電源轉換裝置10進入非待機模式時進行供電，待機供電模組120除了於電源轉換裝置10進入待機模式時進行供電外，更用以提供主供電模組100中的複數微控制器102運作電壓。 In summary, the method for preventing abnormal shutdown of the power conversion device of the present invention can be implemented by the following steps: First, a power conversion device 10 is provided. The power conversion device 10 includes a main power supply module 100 and a standby power supply module 120. The module 120 is electrically connected to the main power supply module 100. The main power supply module 100 is configured to supply power when the power conversion device 10 enters the non-standby mode. The standby power supply module 120 provides power supply in addition to the power conversion device 10 when it enters the standby mode. The plurality of microcontrollers 102 operate at a voltage.

其次，於電源轉換裝置10進入非待機模式且待機供電模組120之待機電源轉換器122停止工作時，監測運作電壓。 Next, when the power conversion device 10 enters the non-standby mode and the standby power converter 122 of the standby power supply module 120 stops operating, the operating voltage is monitored.

接著，使電源轉換裝置10脫離待機模式並進入非待機模式時，並於待機供電模組120中之待機電源轉換器122停止工作時執行監測程序以監測運作電壓，並於運作電壓低於預設最低補償電壓之前，強迫待機電源轉換器122運作以避免電源轉換裝置10異常關機。 Then, when the power conversion device 10 is taken out of the standby mode and enters the non-standby mode, and the standby power converter 122 in the standby power supply module 120 stops working, the monitoring program is executed to monitor the operating voltage, and the operating voltage is lower than the preset voltage. Prior to the minimum compensation voltage, the standby power converter 122 is forced to operate to avoid abnormal shutdown of the power conversion device 10.

最後，若運作電壓高於最低補償電壓一定值後，停止運作電壓監測程序。 Finally, if the operating voltage is higher than the minimum compensation voltage, the voltage monitoring procedure is stopped.

此外，為了避免待機電源控制器128因操作於過高電壓而使電源轉換裝置10異常關機，電源轉換裝置10還可以包含過電壓保護電路(圖未示)。過電壓保護電路用以於操作電壓輸出電源的輸出電壓不小於待機電源控制器128的預設最大保護電壓OVP時(如圖3時間點t2所示)，驅使待機電源控制器128停止工作，以降低輸出電壓(如圖3時間點t1~t2所示)，避免電源轉換裝置10異常關機。 In addition, in order to prevent the standby power controller 128 from abnormally shutting down the power conversion device 10 due to operation of an excessive voltage, the power conversion device 10 may further include an overvoltage protection circuit (not shown). The overvoltage protection circuit is configured to drive the standby power controller 128 to stop when the output voltage of the operating voltage output power is not less than the preset maximum protection voltage OVP of the standby power controller 128 (as shown in time point t2 of FIG. 3). The output voltage is lowered (as shown in time point t1~t2 of FIG. 3) to avoid abnormal shutdown of the power conversion device 10.

雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明的精神和範圍內，當可作各種的更動與潤飾，因此本發明的保護範圍當視後附的申請專利範圍所界定者為準。 While the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and the invention may be modified and modified in various ways without departing from the spirit and scope of the invention. The scope is subject to the definition of the scope of the patent application.

Claims (7)

一種防止電源轉換裝置異常關機之方法，包含：提供一電源轉換裝置，包含一主供電模組及一待機供電模組，該待機供電模組電連接於該主供電模組，並提供該主供電模組之複數微控制器所需之一運作電壓；於該電源轉換裝置由一待機模式進入一非待機模式且該待機供電模組之一待機電源轉換器停止工作時，該待機供電模組之一待機電源控制器執行一運作電壓監測程序以監測該運作電壓；以及該待機電源控制器於該運作電壓小於一最低補償電壓之前，強制啟動該待機電源轉換器運作，以避免該電源轉換裝置異常關機，其中，該待機供電模組提供之該運作電壓為VA，該等微控制器於非待機模式下的需求運作電壓為VB，該最低補償電壓為VC，該等微控制器的所有低封鎖電壓中的最大值為UVLO(max)，滿足下列條件：VC=VA-(VB-UVLO(max))。 A method for preventing abnormal shutdown of a power conversion device includes: providing a power conversion device, comprising a main power supply module and a standby power supply module, wherein the standby power supply module is electrically connected to the main power supply module, and provides the main power supply One of the operating voltages required by the plurality of microcontrollers of the module; when the power conversion device enters a non-standby mode from a standby mode and the standby power converter of the standby power supply module stops working, the standby power supply module a standby power controller performs an operating voltage monitoring program to monitor the operating voltage; and the standby power controller forcibly starts the standby power converter to operate before the operating voltage is less than a minimum compensation voltage to prevent the power conversion device from being abnormal Shutdown, wherein the operating voltage provided by the standby power supply module is VA, and the required operating voltage of the microcontrollers in the non-standby mode is VB, the minimum compensation voltage is VC, and all low blocking of the microcontrollers The maximum value in the voltage is UVLO(max), which satisfies the following condition: VC = VA - (VB - UVLO (max)). 如請求項第1項所述之方法，更包含：於該運作電壓高於該最低補償電壓一定值後，停止該運作電壓監測程序。 The method of claim 1, further comprising: stopping the operating voltage monitoring program after the operating voltage is higher than the minimum compensation voltage. 如請求項第1項所述之方法，其中該等微控制器於該待機模式操作時之該運作電力小於在該非待機模式操作下之該運作電力。 The method of claim 1, wherein the operating power of the microcontrollers in the standby mode operation is less than the operating power in the non-standby mode operation. 一種電源轉換裝置，包含：一主供電模組，包含複數微控制器；一待機供電模組，用以提供該等微控制器一運作電壓，該待機供電模組包含： 一待機電源轉換器；一運作電壓供應單元，包含：一待機電源轉換單元，包含一初級繞組及一輔助繞組，該初級繞組電連接於該待機電源轉換器，該輔助繞組電磁耦合於該初級繞組；一整流元件，電連接於該輔助繞組；以及一直流電容器，電連接於該輔助繞組及該整流元件；一待機電源控制器，電連接於該整流元件及該直流電容器；以及一電壓調整單元，電連接於該待機電源控制器、該整流元件、該直流電容器及該等微控制器；其中，當該待機電源控制器啟動該待機電源轉換器時，該運作電壓經該初級繞組耦合至該輔助繞組，並經該整流元件整流後通過該電壓調整單元傳遞至該等微控制器，並使該直流電容器充電，當該待機電源控制器讓該待機電源轉換器停止工作時，該運作電壓由該直流電容器經該電壓調整單元傳遞至該等微控制器；以及該待機電源控制器係於該待機電源轉換器停止工作且該運作電壓小於一最低補償電壓之前，強制啟動該待機電源轉換器，以避免該電源轉換裝置異常關機。 A power conversion device includes: a main power supply module, comprising a plurality of microcontrollers; and a standby power supply module for providing an operating voltage of the microcontrollers, the standby power supply module comprising: a standby power converter; an operating voltage supply unit comprising: a standby power conversion unit comprising a primary winding and an auxiliary winding electrically connected to the standby power converter, the auxiliary winding being electromagnetically coupled to the primary winding a rectifying element electrically connected to the auxiliary winding; and a DC capacitor electrically connected to the auxiliary winding and the rectifying element; a standby power controller electrically connected to the rectifying element and the DC capacitor; and a voltage adjusting unit Electrically coupled to the standby power controller, the rectifying component, the DC capacitor, and the microcontrollers; wherein when the standby power controller activates the standby power converter, the operating voltage is coupled to the primary winding via the primary winding An auxiliary winding is rectified by the rectifying element and transmitted to the micro controller through the voltage adjusting unit, and charges the DC capacitor. When the standby power controller stops the standby power converter, the operating voltage is The DC capacitor is transmitted to the microcontrollers via the voltage adjustment unit; and the standby Before the source controller to the system stops working and the standby power converter is less than a minimum operating voltage compensation voltage starts to force the standby power converter, the power conversion apparatus to avoid abnormal shutdown. 如請求項第4項所述之電源轉換裝置，其中運作電壓供應單元的輸出之該運作電壓為VA，該等微控制器在非待機模式操作下之需求運作電壓為VB，該最低補償電壓為VC，該等微控制器的所有低封鎖電壓中的最大值為UVLO(max)，滿足下列條件：VC=VA-(VB-UVLO(max))。 The power conversion device of claim 4, wherein the operating voltage of the output of the operating voltage supply unit is VA, and the required operating voltage of the microcontroller in the non-standby mode operation is VB, and the minimum compensation voltage is VC, the maximum of all low blocking voltages of these microcontrollers is UVLO(max), which satisfies the following condition: VC = VA - (VB - UVLO (max)). 如請求項第4項所述之電源轉換裝置，其中該等微控制器設於該主供電裝置之一主電源轉換器及一功率因素校正器中，該功率因素校正器電連接於該主電源轉換器。 The power conversion device of claim 4, wherein the microcontroller is disposed in a main power converter of the main power supply device and a power factor corrector, the power factor corrector being electrically connected to the main power source converter. 如請求項第4項所述之電源轉換裝置，其中當該運作電壓高於該最低補償電壓一定值後，停止該運作電壓監測程序。 The power conversion device of claim 4, wherein the operating voltage monitoring program is stopped after the operating voltage is higher than the minimum compensation voltage.
TW105110961A 2016-04-07 2016-04-07 Power conversion device and method for preventing abnormal shutdown thereof TWI630774B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201414156A (en) * 2012-09-17 2014-04-01 Fsp Technology Inc Power supply apparatus with power backup mechanism
TWI505603B (en) * 2013-12-23 2015-10-21 Fsp Technology Inc Apparatus and method for power supply
TWI513159B (en) * 2013-01-15 2015-12-11 System General Corp Method and apparatus for controlling programmable power converter with low standby power loss
TW201605151A (en) * 2014-07-29 2016-02-01 Zippy Tech Corp Quick start backup Redundant Power Supply system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201414156A (en) * 2012-09-17 2014-04-01 Fsp Technology Inc Power supply apparatus with power backup mechanism
TWI513159B (en) * 2013-01-15 2015-12-11 System General Corp Method and apparatus for controlling programmable power converter with low standby power loss
TWI505603B (en) * 2013-12-23 2015-10-21 Fsp Technology Inc Apparatus and method for power supply
TW201605151A (en) * 2014-07-29 2016-02-01 Zippy Tech Corp Quick start backup Redundant Power Supply system

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