CN101727173A - 节能器 - Google Patents

节能器 Download PDF

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Publication number
CN101727173A
CN101727173A CN200810305268A CN200810305268A CN101727173A CN 101727173 A CN101727173 A CN 101727173A CN 200810305268 A CN200810305268 A CN 200810305268A CN 200810305268 A CN200810305268 A CN 200810305268A CN 101727173 A CN101727173 A CN 101727173A
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power supply
relay
field effect
effect transistor
trigger
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CN101727173B (zh
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戴方达
林承庠
邹腾锋
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Priority to CN2008103052680A priority Critical patent/CN101727173B/zh
Priority to US12/331,415 priority patent/US7990744B2/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32Energising current supplied by semiconductor device
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of a power-saving mode
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234Power saving characterised by the action undertaken
    • G06F1/3287Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/223Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil adapted to be supplied by AC
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/0003Details of control, feedback or regulation circuits
    • H02M1/0032Control circuits allowing low power mode operation, e.g. in standby mode
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/50Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Power Sources (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

一种节能器,包括一个与一外部电源相接的电源输入接口、一交/直流转换器、一继电器、一继电器驱动电路、一触发器、一时序控制电路及一与一电源供应器相连的电源输出接口,所述继电器的内部开关连接在所述电源输入接口与所述电源输出接口之间,当所述时序控制电路接收一电脑主机板的电源开机信号时,通过所述触发器控制所述继电器驱动电路驱动所述继电器的内部开关闭合,当所述时序控制电路接收到所述电脑主机板的电源关机信号时,通过所述触发器控制所述继电器驱动电路驱动所述继电器的内部开关断开。所述节能器可在电脑主机板软件关机后完全中断外部电源与电源供应器的连接,节省了电能。

Description

节能器
技术领域
本发明涉及一种节能器。
背景技术
开关电源(switch power supply,SPS)被应用于电脑、服务器、工作站等产品中,一般电脑在软件关机后,其内部的开关电源电路仍然会输出一5V备用待机电压提供给电脑主机板,供电脑主机板的电源监控单元、网络通信接口、系统时钟芯片等使用,为电脑的电源启动作准备。
但是,如果电脑在软件关机后长时间不使用的话,所述5V备用待机电压将会有一定的电源损耗,这不利于节约能源。
发明内容
鉴于以上内容,有必要提供一种节能器,以最大限度地降低开关电源的能量损耗。
一种节能器,包括一用于连接外部电源的电源输入接口、一用于连接一电源供应器的电源输出接口、一交/直流转换器、一继电器、一继电器驱动电路、一触发器及一时序控制电路,所述交/直流转换器用于将来自所述电源输入接口的交流电压转换为直流电压并提供给所述继电器、继电器驱动电路及触发器,所述继电器的内部开关连接在所述电源输入接口与所述电源输出接口之间,当所述时序控制电路接收到电脑主机板的关机信号或开机信号时,所述时序控制电路输出一控制信号触发所述触发器改变其原有的电平状态并将改变后的电平状态传送至所述继电器驱动电路,所述继电器驱动电路根据接收到的电平状态输出另一控制信号给所述继电器以控制所述继电器的内部开关的启闭。
相较现有技术,在电脑主机板软件关机时,所述节能器通过所述时序控制电路接收电脑主机板的关机信号,并通过所述触发器控制所述继电器驱动电路驱动所述继电器运作以断开所述继电器的内部开关,进而中断所述外部电源与所述电源供应器的连接,因此一定程度上节约了电能,降低了成本。
附图说明
下面结合附图及较佳实施方式对本发明作进一步详细描述:
图1是本发明节能器的较佳实施方式连接一电源供应器及一电脑主机板的原理框图。
图2是图1的电路图。
具体实施方式
请参考图1,本发明节能器100的较佳实施方式包括一电源输入接口10、一交/直流转换器20、一继电器30、一继电器驱动电路40、一触发器50、一时序控制电路60及一电源输出接口70。
所述电源输入接口10用于连接外部电源(如220V交流电源),并通过所述电源输出接口70将所述外部电源提供给一电源供应器80,所述电源供应器80内的电源转换电路将接收到的外部电源信号转换成一电脑主机板90所需的电源信号(如5V系统电源5V_sys、5V备用电源5Vsb等)提供给电脑主机板90。所述交/直流转换器20通过所述电源输入接口10接收所述外部电源的交流电压并将其转换成直流电压(如5V),以提供给所述继电器30、继电器驱动电路40及触发器50工作。所述继电器30的开关K连接在所述电源输入接口10上的火线L上,所述时序控制电路60用于连接所述电脑主机板90的电源开机信号引脚Power-on、电源关机信号引脚Power-off、系统电源引脚5V_sys。
当所述时序控制电路60接收到所述电脑主机板90的电源关机信号引脚Power-off发出关机信号,此时所述主机板90的系统电源引脚5V_sys有5V电压输出,所述时序控制电路60将触发所述触发器50来控制所述继电器驱动电路40驱动所述继电器30以断开所述开关K,从而断开外部电源与所述电源供应器80之间的连接,故所述电脑主机板90的系统电源引脚5V_sys及其备用电源(未示出)均没有电压输出。
当所述时序控制电路60接收到所述电脑主机板90的电源开机信号Power-on发出开机信号,此时所述电脑主机板90的系统电源引脚5V_sys没有5V电压输出,所述时序控制电路60将触发所述触发器50来控制所述继电器驱动电路40驱动所述继电器30以闭合所述开关K,从而所述外部电源通过所述电源输入接口10及所述电源输出接口70给所述电源供应器80供电。
请继续参考图2,所述继电器驱动电路40包括一晶体管Q1及一比较器芯片42(本实施方式中型号为LM358)。所述时序控制电路60包括一场效应管Q2、一场效应管Q3及两个起保护功能的二极管D1及D2,所述二极管D1及D2也可以删除,以进一步降低成本。
所述交/直流转换器20及触发器50为现有技术中较成熟的技术,故这里不再详细描述,具体可根据实际情况加以选择,在本实施方式中所述触发器50为一D型正反器。所述电源输入接口10的零线N及地线G均连接到所述电源输出接口70对应的引脚上。
所述继电器30的线圈J一端连接所述交/直流转换器20产生的一5V直流电压,另一端连接到所述晶体管Q1的集电极及所述场效应管Q3的栅极。所述晶体管Q1的发射极接地,基极连接到所述比较器42的一输出引脚OUT。所述比较器42的一输入引脚IN-通过所述触发器50连接到所述场效应管Q2及Q3的漏极。所述场效应管Q2的栅极连接到所述二极管D1的阳极及所述电脑主机板90的5V系统电源引脚5V_sys,所述场效应管Q2的源极接地,所述二极管D1的阴极连接到所述电脑主机板90的电源关机信号引脚Power-off。所述场效应管Q3的源极连接到所述二极管D2的阳极,所述二极管D2的阴极连接到所述电脑主机板90的电源开机信号引脚Power-on。
当对电脑进行节能控制时,将所述节能器100的电源输入接口10与外部电源相连,将所述节能器100的电源输出接口70与所述电源供应器80的对应的电源接口82相连,开启所述电脑主机板90电源开关时,此时所述触发器50处于高电平状态,所述电脑主机板90的电源开机信号引脚Power-on将发出一低电平开机信号给所述场效应管Q3的源极,所述场效应管Q3导通并输出一低电平至所述触发器50,使所述触发器50改变其高电平状态为低电平状态,并输出至所述比较器42的反相输入端IN-,所述比较器42输出端OUT输出高电平至所述晶体管Q1,使所述晶体管Q1导通,所述继电器30接收到一低电平信号,从而其内部的开关K闭合,此时所述外部电源通过所述电源输入接口10及所述电源输出接口70给所述电源供应器供电。
当使用者对所述电脑主机板90进行软件关机时,所述电脑主机板90的电源关机信号引脚Power-off发出一高电平关机信号给所述场效应管Q2,使所述场效应管Q2导通,并输出一低电平至所述触发器50,所述触发器50改变其低电平状态为高电平状态,并输出至所述比较器42的反相输入端IN-,所述比较器42输出端OUT输出低电平至所述晶体管Q1,所述晶体管Q1截止,所述继电器接收到一高电平信号,从而其内部的开关K断开,此时所述外部电路与所述电源供应器80的连接被中断,即无任何电压提供给所述电脑主机板90,由于备用电压也被中断,故在一定程度上节约了电能,降低了成本。
在本实施方式中,所述触发器50的触发条件是接收到低电平,在其它实施方式中,触发器也可选用触发条件为高电平的,从而改变所述时序控制电路60使其在接收到开机信号和关机信号后均会输出高电平来触发所述触发器。

Claims (6)

1.一种节能器,包括一用于连接外部电源的电源输入接口、一用于连接一电源供应器的电源输出接口、一交/直流转换器、一继电器、一继电器驱动电路、一触发器及一时序控制电路,所述交/直流转换器用于将来自所述电源输入接口的交流电压转换为直流电压并提供给所述继电器、继电器驱动电路及触发器,所述继电器的内部开关连接在所述电源输入接口与所述电源输出接口之间,当所述时序控制电路接收到电脑主机板的关机信号或开机信号时,所述时序控制电路输出一控制信号触发所述触发器改变其原有的电平状态并将改变后的电平状态传送至所述继电器驱动电路,所述继电器驱动电路根据接收到的电平状态输出另一控制信号给所述继电器以控制所述继电器的内部开关的启闭。
2.如权利要求1所述的节能器,其特征在于:所述继电器驱动电路包括一晶体管及一比较器,所述继电器的内部线圈一端连接所述交/直流转换器以接收所述直流电压,另一端连接到所述晶体管的集电极,所述晶体管的发射极接地,基极连接到所述比较器的输出引脚,所述比较器的一输入引脚通过所述触发器连接到所述时序控制电路。
3.如权利要求2所述的节能器,其特征在于:所述时序控制电路包括一第一场效应管及一第二场效应管,所述继电器驱动电路的晶体管的集电极连接所述第二场效应管的栅极,所述触发器连接到所述第一及第二场效应管的漏极,所述第一场效应管的栅极连接所述电脑主机板的系统电源引脚及电源关机信号引脚,所述第一场效应管的源极接地,所述第二场效应管的源极连接到所述电脑主机板的电源开机信号引脚。
4.如权利要求3所述的节能器,其特征在于:所述第一场效应管的栅极与所述电脑主机板的电源关机信号引脚之间还连接一第一二极管,所述第一场效应管的栅极与所述第一二极管的阳极相连,所述第一二极管的阴极连接所述电脑主机板的电源关机信号引脚。
5.如权利要求3所述的节能器,其特征在于:所述第二场效应管的源极与所述电脑主机板的电源开机信号引脚之间还连接一第二二极管,所述第二场效应管的源极与所述第二二极管的阳极相连,所述第二二极管的阴极连接所述电脑主机板的电源开机信号引脚。
6.如权利要求3所述的节能器,其特征在于:所述触发器为一D型正反器。
CN2008103052680A 2008-10-29 2008-10-29 节能器 Expired - Fee Related CN101727173B (zh)

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US12/331,415 US7990744B2 (en) 2008-10-29 2008-12-09 Power supply saving system for an electronic device

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CN102456992A (zh) * 2010-10-25 2012-05-16 博计电子股份有限公司 智能型电连接装置
CN101963792B (zh) * 2010-10-29 2012-08-22 珠海市鑫和电器有限公司 一种时序控制电路及其控制方法
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