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关键词： AC/DC开关电源   控制集成电路   谐振式   CC型   MOSFET   输出脉冲   驱动控制器   驱动信号源   RS触发器  

摘要： AN8026为松下公司开发的它激式单端输出开关驱动控制器，其内部采用RC充放电控制的RS触发器作为驱动信号源，其输出脉冲可直接驱动MOSFET开关管，而不必外设灌流电路。该集成电路为SIP9脚封装，其特点如下：

关键词： 反馈放大器   反馈类型   三步法   应用   基本放大电路   电子线路   反馈网络   工作性能   连接方式  

摘要： 在电子线路中，为了改善线路的工作性能以及稳定性，经常采用反馈放大器，一个反馈放大器是由基本放大电路和反馈网络所组成，由于反馈网络与基本放大器在输入、输出端的连接方式不同，反馈的类型也各不相同。在这里，我为大家介绍一种反馈类型的判断方法——“三步法”。供初学人员在学习中参考。

关键词： 环境   定义   防护等级   设计   测定   文献   电器   电气的   电气元件   电气工程   电气安全   电驱动装置   外壳   设备   防爆   爆炸性环境   可燃性环境   熔断器   检验   绝缘件   作标记   插头和插座连接   防护电气设备   防电击   保护设备   合格试验   安全装置   规范(验收)   测试   n型防护电气设备   保护形式   类型  

标准号: BS EN 60079-15-2005

摘要： BS EN 60079-15:2005

关键词： 开关能力   制动器   建筑物   分类   分类系统   接触安全装置   控制装置   定义   介电强度   调光开关   家用的   民用工程   接地导线   电气工程   电气装置   电气安全   电磁兼容性   电子工程   电子设备   电子设备及元件   电子仪器   EMC   熔断器   家用(安装)设备   家用   作标记   装置开关   装置   绝缘电阻   干扰抑制   安装材料   网络接口   额定电流   安全工程   安全要求   测头   传感器   建筑物服务设施   规范(验收)   固定的   材料强度   开关   开关装置   系统工程   温升   测试  

标准号: BS EN 50428-2005+A1-2007

摘要： This clause of Part 2-1 is replaced by the following:This collateral standard applies to HBES switches with a working voltage not exceeding 250 V *** a rated current up to and including 16 A. for household and similar fixed electrical installationseither indoors or outdoors and to associated electronic extension *** appliesto HBES switches for the operation of lamp circuits and the control of the brightness of lamps(dimmers) as well as the control of the speed of motors (e.g. those used in ventilating fans) andfor other purposes (e.g. heating installations ),to sensors, actuators, switched-socket-outlets, associated electronic extension units, etcIn the following document the word " HBES switch " is applied to describe all kind of HBES devicese.g. switches, sensors, actuators, switched-socket-outlets, associated electronic extension units,*** operation and control are performedintentionally by a person via an actuating member, a key, a card, etc., via a sensing surface ora sensing unit, by means of touch, proximity, turn, optical, acoustic, thermal,by physical means, e.g. light, temperature, humidity, time, wind velocity, presence of people,by any other influence;and transmittedby an electronic signal via several media, e.g. powerline (mains), twisted pair, optical fibre,radio frequency, infra-red, etc?HBES Switches complying with this standard are suitable for use at ambient temperatures notnormally exceeding 25 °C, but occasionally reaching 35 °*** safety aspects of HBES switches are not covered by this standard. Functional safetyrequirements shall be covered by the standards of the devices which are controlled by the *** locations where special conditions prevail, e.g. higher temperature, special constructions may *** 1 This annex is not intended to cover devices falling within the scope of IEC *** 2 Electronic switches without a mechanical switch in the main circuit do not provide a "full off-state". Therefore, thecir

关键词： 开关能力   传动装置   分类   分类系统   接触安全装置   控制装置   定义   介电强度   调光开关   家用的   民用工程   接地导线   电气工程   电力设备   电气安全   电磁兼容性   电子工程   电子设备   电子设备及元件   电子仪器   EMC   熔断器   家用(安装)设备   家用   功能   装置   绝缘电阻   干扰抑制   作标记   网络干扰   额定电流   安全工程   安全要求   传感器   测头   建筑物服务设施   规范(验收)   材料强度   开关   开关设备   系统工程   温升   试验  

标准号: BS EN 50428-2005

摘要： This clause of Part 2-1 is replaced by the following:This collateral standard applies to HBES switches with a working voltage not exceeding 250 V *** a rated current up to and including 16 A. for household and similar fixed electrical installationseither indoors or outdoors and to associated electronic extension *** applies? to HBES switches for the operation of lamp circuits and the control of the brightness of lamps(dimmers) as well as the control of the speed of motors (e.g. those used in ventilating fans) andfor other purposes (e.g. heating installations ),? to sensors, actuators, switched-socket-outlets, associated electronic extension units, etcIn the following document the word " HBES switch " is applied to describe all kind of HBES devicese.g. switches, sensors, actuators, switched-socket-outlets, associated electronic extension units,*** operation and control are performed? intentionally by a person via an actuating member, a key, a card, etc., via a sensing surface ora sensing unit, by means of touch, proximity, turn, optical, acoustic, thermal,? by physical means, e.g. light, temperature, humidity, time, wind velocity, presence of people,? by any other influence;and transmitted? by an electronic signal via several media, e.g. powerline (mains), twisted pair, optical fibre,radio frequency, infra-red, etc?HBES Switches complying with this standard are suitable for use at ambient temperatures notnormally exceeding 25 °C, but occasionally reaching 35 °*** is no need for functional safety requirements in this standard. Functional safety requirementsshall be covered by the standards of the devices which are controlled by the *** locations where special conditions prevail, such as higher temperature special constructions maybe *** 1 This annex is not intended to cover devices falling within the scope of IEC *** 2 Electronic switches without a mechanical switch in the main circuit do not provide a "full off-state". Therefore,

关键词： 开关能力   制动器   建筑物   分类   分类系统   接触安全装置   控制装置   定义   介电强度   调光开关   家用的   民用工程   接地导线   电气工程   电气装置   电气安全性   电磁兼容性   电子工程   电子设备   电子设备及元件   电子仪器   EMC   熔断器   家用(安装)设备   家用   批注   装置开关   安装   绝缘电阻   干扰抑制能力   干扰抑制   作标记   安装材料   网络接口   额定电流   安全工程   安全性要求   传感器   建筑物服务设施   规范(验收)   固定的   材料强度   开关   开关设备   系统工程   温升   试验  

标准号: BS EN 50428-2005+A2-2009

摘要： This clause of Part 2-1 is replaced by the following:This collateral standard applies to HBES switches with a working voltage not exceeding 250 V *** a rated current up to and including 16 A. for household and similar fixed electrical installationseither indoors or outdoors and to associated electronic extension *** applies? to HBES switches for the operation of lamp circuits and the control of the brightness of lamps(dimmers) as well as the control of the speed of motors (e.g. those used in ventilating fans) andfor other purposes (e.g. heating installations ),? to sensors, actuators, switched-socket-outlets, associated electronic extension units, etcIn the following document the word " HBES switch " is applied to describe all kind of HBES devicese.g. switches, sensors, actuators, switched-socket-outlets, associated electronic extension units,*** operation and control are performed? intentionally by a person via an actuating member, a key, a card, etc., via a sensing surface ora sensing unit, by means of touch, proximity, turn, optical, acoustic, thermal,? by physical means, e.g. light, temperature, humidity, time, wind velocity, presence of people,? by any other influence;and transmitted? by an electronic signal via several media, e.g. powerline (mains), twisted pair, optical fibre,radio frequency, infra-red, etc?HBES Switches complying with this standard are suitable for use at ambient temperatures notnormally exceeding 25 °C, but occasionally reaching 35°C.

关键词： 基底材料   壳体   控制图   定义   设计   尺寸选定   尺寸   电气设备   电气工程   电气安全   电子设备   熔断体   熔断器   户内   小型熔断器   模数   非互换性   过电压   印制电路   合格试验   规范(验收)   活页标准   表面安装   电涌放电器   试验   通用型  

标准号: BS EN 60127-4-2005

摘要： This part of IEC 60127 relates to universal modular fuse-links (UMF) for printed circuits andother substrate systems, used for the protection of electric appliances, electronic equipment,and component parts thereof, normally intended to be used *** does not apply to fuse-links for appliances intended to be used under special conditions,such as in a corrosive or explosive *** fuses are normally intended to be mounted or replaced only by appropriately skilledpersons using specialized ***-links for use in fuse-holders are under *** standard applies in addition to the requirements of IEC 60127-1.

关键词： 基底材料   壳体   控制图   定义   设计   尺寸选定   尺寸规格   电气设备   电气工程   电气安全性   电子设备   熔断体   熔断器   室内   作标记   小型熔断器   模数   非互换性   过电压   印制电路   合格试验   软钎焊性   规范(验收)   活页标准   表面安装   电涌放电器   试验   型式   通用的  

标准号: BS EN 60127-4-2005+A1-2009

摘要： This part of IEC 60127 relates to universal modular fuse-links (UMF) for printed circuits andother substrate systems, used for the protection of electric appliances, electronic equipment,and component parts thereof, normally intended to be used *** does not apply to fuse-links for appliances intended to be used under special conditions,such as in a corrosive or explosive *** fuses are normally intended to be mounted or replaced only by appropriately skilledpersons using specialized ***-links for use in fuse-holders are under *** standard applies in addition to the requirements of IEC *** objectives of this part of IEC 60127 are as given in IEC 60127-1, with the additionalrequirement of a degree of non-interchangeability.

关键词： 通过鉴定   产品   德力西集团公司   新品   交流接触器   研究开发   鉴定会  

摘要： 近日，“德力西新产品成果鉴定会”在温州召开，德力西集团公司研究开发的CDC17交流接触器等8类产品通过了有关部门鉴定。

关键词： 老化稳定性   频带   电缆通道   夹件   分离器   退耦   定义   介电强度   尺寸   接地导线   接地线端子   接线端   电力设备   电绝缘材料   电气安全   电驱动装置   过滤器   频率范围   熔断器   耐水解性   Incription   绝缘电阻   低压电源   低压设备   抗湿   过电压保护装置   相位耦合器   防电击   合格试验   耐力   耐锈质量   安全要求   螺钉   短路保护   信号传输   规范(验收)   结构体系   试验   热稳定性   跟踪   外观检查(试验)  

标准号: NF C90-201-4-2/A2-2005