美國HONEYWELL開關(guān)定義，故名思議，就是這里有一扇門，一開門電源就通過，一關(guān)門電源就停止通過，那么什么是門呢，開關(guān)電源里有的采用可控硅，有的采用開關(guān)管，這兩個元器件性能差不多，都是靠基極、(開關(guān)管)控制極(可控硅)上加上脈沖信號來完成導(dǎo)通和截止的，脈沖信號正半周到來，控制極上電壓升高，開關(guān)管或可控硅就導(dǎo)通，由220V整流、濾波后輸出的300V電壓就導(dǎo)通，通過開關(guān)變壓器傳到次級，再通過變壓比將電壓升高或降低，供各個電路工作。
振蕩脈沖負(fù)半周到來，電源調(diào)整管的基極、或可控硅的控制極電壓低于原來的設(shè)置電壓，電源調(diào)整管截止，300V電源被關(guān)斷，開關(guān)變壓器次級沒電壓，這時各電路所需的工作電壓，就靠次級本路整流后的濾波電容放電來維持。
待到下一個脈沖的周期正半周信號到來時，重復(fù)上一個過程。
這個開關(guān)變壓器就叫高頻變壓器，因為他的工作頻率高于50HZ低頻。
美國HONEYWELL開關(guān) HONEYWELL接近開關(guān)，HONEYWELL行程開關(guān) 那么推動開關(guān)管或可控硅的脈沖如何獲得呢，這就需要有個振蕩電路產(chǎn)生，我們知道，晶體三極管有個特性，就是基極對發(fā)射極電壓是0.65-0.7V是放大狀態(tài)，0.7V以上就是飽和導(dǎo)通狀態(tài)， -0.1V- -0.3V就工作在振蕩狀態(tài)，那么其工作點調(diào)好后，就靠較深的負(fù)反饋來產(chǎn)生負(fù)壓，使振蕩管起振，振蕩管的頻率由基極上的電容充放電的時間長短來決定，振蕩頻率高輸出脈沖幅度就大，反之就小，這就決定了電源調(diào)整管的輸出電壓的大小。
那么變壓器次級輸出的工作電壓如何穩(wěn)壓呢，一般是在開關(guān)變壓器上，單繞一組線圈，在其上端獲得的電壓經(jīng)過整流濾波后，作為基準(zhǔn)電壓，然后通過光電耦合器，將這個基準(zhǔn)電壓返回振蕩管的基極，來調(diào)整震蕩頻率的高低，如果變壓器次級電壓升高，本取樣線圈輸出的電壓也升高，通過光電耦合器獲得的正反饋電壓也升高，這個電壓加到振蕩管基極上，就使振蕩頻率降低，起到了穩(wěn)定次級輸出電壓的穩(wěn)定，太細的工作情況就不必細講了，也沒必要了解的那么細的，這樣大功率的電壓由開關(guān)變壓器傳遞，并與后級隔開，返回的取樣電壓由光耦傳遞也與后級隔開，所以前級的市電電壓，是與后級分離的，這就叫冷板，是安全的，變壓器前的電源是獨立的，這就叫開關(guān)電源。
說到這里吧。
美國HONEYWELL開關(guān) 美國霍尼韋爾HONEYWELL重載限位開關(guān)LSM6D重載行程開關(guān) LSA1A????? LSA1A1????? LSA1A1-1A??? LSA1A1-1B LSA1A1-2J? LSA1A13???? LSA1A14????? LSA1A15 LSA1A-1A?? LSA1A-1B??? LSA1A-1C???? LSA1A-1D LSA1A-1M?? LSA1A2????? LSA1A2-2J??? LSA1A-2A LSA1A-2B?? LSA1A-2C??? LSA1A-2D???? LSA1A-2J LSA1A-2K?? LSA1A3????? LSA1A4?????? LSA1A-4N? LSA1A-9B?? LSA1AB????? LSA1AC?????? LSA1AC-1B??? LSA1AH12?? LSA1E?????? LSA1E-1B???? LSA1E-2D LSA1F????? LSA1J?????? LSA2B??????? LSA2B15-5D LSA2B-1A?? LSA2B-1B??? LSA2B-1D???? LSA2B25-5D??? LSA2B-2B?? LSA2B-2C??? LSA2B3-5C??? LSA2B4???? LSA2B5???? LSA2R?????? LSA2S??????? LSA3K????? LSA3K1???? LSA3K1-1A?? LSA3K1-1B??? LSA3K-1A?? LSA3K-1B?? LSA3K-1D??? LSA3K-2A???? LSA3K-2B?? LSA3K-2C?? LSA3K-2D??? LSA3K-2J???? LSA3K3???? LSA3K4???? LSA3K-4M??? LSA3K-4N???? LSA3K-5C?? LSA3KC???? LSA3N?????? LSA3N14-2J?? LSA4L????? LSA4L1???? LSA4L-1A??? LSA4L-1B???? LSA4L-1D?? LSA4L3-1D? LSA4L4-1D?? LSA5A??????? LSA5A15??? LSA5A-1A?? LSA5A-1B??? LSA5A-1D???? LSA5A7B??? LSA6B????? LSA6B1????? LSA6B1-4N??? LSA6B-1A?? LSA6B-1B?? LSA6B-1D?? LSA6B-1F?? LSA6B-2B?? LSA6B-2C?? LSA6B-2D?? LSA6B-3D?? LSA6B4-2C??? LSA7L????? LSA7L-1A?? LSA7L-1B?? LSA7L-1C?? LSA7L-1D?? LSA7L-2J?? LSA7L3-1B? LSA8A????? LSA9A????? LSA9A-1B?? LSA9A-2L?? LSA9ADD LSB1A????? LSB1A-4N?? LSB1J????? LSB2B????? LSB3K????? LSB3K-1B?? LSB3K-2C?? LSB4L????? LSB5A????? LSB6B????? LSB7L????? LSB7L-1B?? LSB9A????? LSC1A????? LSC1E????? LSC1F????? LSC1J????? LSC2B????? LSC2R????? LSC3K????? LSC4L????? LSC5A????? LSC6B????? LSC7L????? LSC8A????? 1A????? 1A6???? 1E????? 1F????? 1J????? 2B????? 2F????? 3K????? 3K6???? 4L????? 5A????? 5A7???? 6B????? 7L????? 8A????? 9A????? LSE1A????? LSE1A3???? LSE1A5???? LSE1E????? LSE1J????? LSE1J4???? LSE2B????? LSE3K????? LSE4L????? LSE5A????? LSE6B????? LSE6B5???? LSE6C????? LSE6C5???? LSE7L?? 美國HONEYWELL開關(guān) HONEYWELL接近開關(guān)，HONEYWELL行程開關(guān) ??? LSE7L3???? LSF1A????? LSF1A3???? LSF1A4???? LSF1A5???? LSF1A8???? LSF1E????? LSF1F????? LSF2B????? LSF2C????? LSF3K????? LSF3K3???? LSF3K4???? LSF3K5???? LSF3K8???? LSF4L????? LSF5A????? LSF6B????? LSF7L????? LSF7L3???? LSF7L4???? LSF7L5???? LSF9A????? LSG1A????? LSG1E????? LSG2B????? LSG3K????? LSG4L????? LSG5A????? LSG6B????? LSG7L????? LSH1A????? LSH1A-1B?? LSH1A-2D?? LSH1AB???? LSH1E????? LSH1E-1A?? LSH2B????? LSH2B-2D?? LSH3K????? LSH4L????? LSH4L13??? LSH4L-1B?? LSH5A????? LSH5A-1L?? LSH5A-4N?? LSH6B????? LSH6B-1B?? LSH7L????? LSH9A????? LSJ1A????? LSJ1A-1N?? LSJ1A-7A?? LSJ1A-7M?? LSJ1A-7N?? LSJ1AC-7M??? LSJ1AC-7N? LSJ1ADD-7A LSJ1E-7A?? LSJ1E-7M?? LSJ1J-7A?? LSJ1J-7M?? LSJ2B-7A?? LSJ2B-7M?? LSJ2B-7N?? LSJ3K????? LSJ3K-7A?? LSJ3K-7M?? LSJ3K-7N?? LSJ5A-7A?? LSJ5A-7M?? LSJ5A-7N?? LSJ6B????? LSJ6B-7A?? LSJ6B-7M?? LSJ6B-7N?? LSJ7L-7A?? LSJ7L-7M?? LSJ7L-7N?? LSJ8A-7A?? LSK1A????? LSK1A-8A?? LSK1A-8B?? LSK1A-8C?? LSK1E-8C?? LSK1J-8C?? LSK2B-8A?? LSK2B-8C?? LSK2R-8A?? LSK3K-8A?? LSK3K-8B?? LSK3K-8C?? LSK4L????? LSK4L-8B?? LSK4L-8C?? LSK5A-8A?? LSK5A-8B?? LSK5A-8C?? LSK6B????? LSK6B-8A?? LSK6B-8B?? LSK6B-8C?? LSK7L-8A?? LSK7L-8C?? LSK8A-8A?? LSK8A-8B?? LSK8A-8C?? LSL2C????? LSL4M????? LSL6C????? LSL6C-4N?? LSL7M????? LSM2D????? LSM2D-1B?? LSM2D-1D?? LSM2D-2D?? LSM2DM???? LSM4N????? LSM4N-1A?? LSM4N-1B?? LSM6D????? LSM6D-1B?? LSM6D-1D?? LSM6D-1P?? LSM6D-2A?? LSM6D3???? LSM6D-3D?? LSM6D4???? LSM6D4-5D? LSM7N????? LSM7N-1A?? LSN1A????? LSN1A-3A?? LSN1A-3D?? LSN1A-3P?? LSN1A3P??? LSN1A-3S?? LSN1E????? LSN1E3P??? LSN2B????? LSN3K????? LSN3N????? LSN4L????? LSN4L-3D?? LSN5A????? LSN6B????? LSN6B-3B?? LSN6B-3D?? LSN7L????? LSN8A37??? LSP1A????? LSP1A-1B?? LSP1A-1C?? LSP1A-1D?? LSP1A2???? LSP1A-2A?? LSP1A-2D?? LSP1A4???? LSP1A4B??? LSP1A-4M?? LSP1A5-1C? LSP1AB???? LSP1E????? LSP1E-1A?? LSP1F????? LSP2B????? LSP2B-1B?? LSP2R????? LSP3K????? LSP3K-1B?? LSP3K-1D?? LSP3K3???? LSP4L????? LSP4L3???? LSP4L-4N?? LSP5A????? LSP6B????? LSP7L????? LSP7L3???? LS-PA5A4?? LS-PA5D4?? LSQ037???? LSQ038???? LSQ051???? LSQ052???? LSQ053???? LSQ054???? LSQ081???? LSQ117-QC???? 聯(lián) 系 人 夏先生 公司電話 021-31206719 公司傳真 021-31391742? 手機號碼 13918147997? Q????? Q 325112678 標(biāo)簽： ? ? 上海市美國霍尼韋爾開關(guān) ? 上海市美國霍尼韋爾開關(guān)廠家

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供應(yīng)美國HONEYWELL霍尼韋爾開關(guān) 行程開關(guān) 接近開關(guān) 限位開關(guān)