[原创] Powerint LinkSwitch－TN2 900 V1．44W转换器参考设计DER－737
https://t.cn/Aid2P4ae
Power Integrations公司的LinkSwitch™-TN2系列产品是高效率离线开关集成电路,和传统的线性和电容降压器(Capdropper)型解决方案相比,极大地提高了性能.采用高度集成的LinkSwitch-TN2集成电路进行设计,具有更多的灵活性和特性,增加了效率,几乎无所不包的系统级保护和更高的可靠性.器件支持降压,降压-升压和反激转换器拓扑结构.每个器件包括了725V功率MOSFET,振荡器,开/关控制以获得轻负载时的最高效率,用于自偏压的高压开关电流源,频率抖动(降低EMI滤波器复杂性),快速限流,滞后热关断以及输出和输入电压保护电路.工作频率66kHz,待机电流<100 μA,无负载损耗小于30mW,容易满足全球所有能源效率规范要求.主要用在仪表计量,电器,智能LED驱动器和工业控制,以及IOT,家庭和建筑物自动化.本文介绍了LinkSwitch™-TN2系列产品亮点,功能框图和应用电路,以及采用LinkSwitch-TN2 900 V的1.44W非隔离降压转换器参考设计DER-737主要特性和优势,电路图,材料清单和PCB设计图.
The LinkSwitch™-TN2 family of ICs for non-isolated off-line powersupplies provide dramatically improved performance compared totraditional linear or cap-dropper solutions. Designs using the highlyintegrated LinkSwitch-TN2 ICs are more flexible and feature increasedefficiency, comprehensive system level protection and higher reliability.
The device family supports buck, buck-boost and flyback convertertopologies. Each device incorporates a 725 V power MOSFET, oscillator,On/Off control for highest efficiency at light load, a high-voltageswitched current source for self-biasing, frequency jittering, fast(cycle-by-cycle) current limit, hysteretic thermal shutdown, and outputand input overvoltage protection circuitry onto a monolithic IC.
LinkSwitch-TN2 ICs consume very little current in standby resulting inpower supply designs that meet all no-load and standby specificationsworldwide. MOSFET current limit modes can be selected through theBYPASS pin capacitor value. The high current limit level providesmaximum continuous output current while the low level permits usingvery low cost and small surface mount inductors. A full suite ofprotection features enable safe and reliable power supplies protectingthe device and the system against input and output overvoltage faults,device over-temperature faults, lost regulation, and power supply outputoverload or short-circuit faults.
https://t.cn/Aid2P4ae
Power Integrations公司的LinkSwitch™-TN2系列产品是高效率离线开关集成电路,和传统的线性和电容降压器(Capdropper)型解决方案相比,极大地提高了性能.采用高度集成的LinkSwitch-TN2集成电路进行设计,具有更多的灵活性和特性,增加了效率,几乎无所不包的系统级保护和更高的可靠性.器件支持降压,降压-升压和反激转换器拓扑结构.每个器件包括了725V功率MOSFET,振荡器,开/关控制以获得轻负载时的最高效率,用于自偏压的高压开关电流源,频率抖动(降低EMI滤波器复杂性),快速限流,滞后热关断以及输出和输入电压保护电路.工作频率66kHz,待机电流<100 μA,无负载损耗小于30mW,容易满足全球所有能源效率规范要求.主要用在仪表计量,电器,智能LED驱动器和工业控制,以及IOT,家庭和建筑物自动化.本文介绍了LinkSwitch™-TN2系列产品亮点,功能框图和应用电路,以及采用LinkSwitch-TN2 900 V的1.44W非隔离降压转换器参考设计DER-737主要特性和优势,电路图,材料清单和PCB设计图.
The LinkSwitch™-TN2 family of ICs for non-isolated off-line powersupplies provide dramatically improved performance compared totraditional linear or cap-dropper solutions. Designs using the highlyintegrated LinkSwitch-TN2 ICs are more flexible and feature increasedefficiency, comprehensive system level protection and higher reliability.
The device family supports buck, buck-boost and flyback convertertopologies. Each device incorporates a 725 V power MOSFET, oscillator,On/Off control for highest efficiency at light load, a high-voltageswitched current source for self-biasing, frequency jittering, fast(cycle-by-cycle) current limit, hysteretic thermal shutdown, and outputand input overvoltage protection circuitry onto a monolithic IC.
LinkSwitch-TN2 ICs consume very little current in standby resulting inpower supply designs that meet all no-load and standby specificationsworldwide. MOSFET current limit modes can be selected through theBYPASS pin capacitor value. The high current limit level providesmaximum continuous output current while the low level permits usingvery low cost and small surface mount inductors. A full suite ofprotection features enable safe and reliable power supplies protectingthe device and the system against input and output overvoltage faults,device over-temperature faults, lost regulation, and power supply outputoverload or short-circuit faults.
最近半年一直在听buck tick的ミウ，这是1999年的一首单曲，已经二十年了，但迷人的劲头现在还在。年轻时听视觉系就没太听buck tick，觉得太形而上了。基本就听过几首热门歌，没什么太多感觉。但这首歌ミウ反复听了几百遍还是觉得太动听了。这首歌里樱井敦司用和以往演唱方式不同的一种十分慵懒而平静的声音，那种仿佛午睡刚刚醒来的鼻音性感极了。没有视觉系那种狠命使劲咬牙切齿的唱腔，就像一个无力而阴郁的衰败的贵族后裔。我觉得最好听的是结尾那两句，吉他的旋律回转叠复后，以问句留下余韵。歌词是“編み上げブツ履く，少女が歩いて。悪くない目さめに，空を飛んでみようか” 脑海中浮现的是夏日白色阳光直射下的午后，穿着编织长靴的少女，轻快自由地走在仿佛晒化的路上的情景。不知为何，我从心里深深着迷这样的感觉，好像这种光影就像自己少年时的某个片段，那种从内到外全身上下的自由又冷漠之感。特别敬佩那些带着满身伤痕和痛苦却依然能拥有精神上纯粹的自由的人，在采访里樱井敦司并不避讳年轻时父亲带来的那些黑暗，但随着时间和音乐，似乎就都在那少女的脚踝里被轻轻掩盖了。每个人都会衰老，即使樱井已经现在老成妖怪了，但年轻时那头秀发真是美死了。我觉得平庸而没有故事的人是做不了好音乐和好作家的，这是铁一样的事实。最近常在想，人的一生可能随时都会不堪地结束，但未知的那一刻来临之前，我们为什么不能尽情地飞向天空呢？
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图源转自官方推特
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飞鸟卡进飞机引擎?! [doge] 还是人卡进去?! [二哈]
巴克正式出外勤了喔~~ [鼓掌][鼓掌][鼓掌]
图源转自官方推特
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