Daim ntawv thov thiab kev tsim cov thev naus laus zis tshiab ntawm DC switching fais fab mov
Daim ntawv thov thiab kev tsim cov thev naus laus zis tshiab ntawm DC switching fais fab mov
Nrog rau txoj kev loj hlob sai ntawm kev siv tshuab hluav taws xob thiab kev lag luam kev sib txuas lus, kev siv cov khoom siv hluav taws xob hloov hluav taws xob ntau thiab ntau dua. Nrog rau kev txhim kho txuas ntxiv ntawm kev hloov pauv ntau zaus, kev ua haujlwm ntawm kev hloov hluav taws xob hloov pauv tau zoo dua, nrog kev sib koom ua ke ntau dua, kev siv hluav taws xob qis dua, kev ua haujlwm yooj yim dua thiab txhim khu kev qha, uas yog txoj kev loj hlob ntawm kev hloov hluav taws xob. Tam sim no, high-frequency switching fais fab mov tau dav siv nyob rau hauv microwave chaw nres tsheb ntawm xov tooj cua thiab TV nyob rau hauv peb lub xeev. Raws li qhov no, cov thev naus laus zis tshiab thiab qhov zoo ntawm cov khoom siv hluav taws xob ntau zaus hloov pauv tau qhia los ntawm kev sib piv cov khoom siv hluav taws xob ib txwm muaj nrog niaj hnub high-frequency switching fais fab mov.
1 muaj pes tsawg leeg hauv paus ntsiab lus ntawm high zaus switching fais fab mov
Feem ntau, lub high-frequency switching rectifier ua ntej rectifies thiab lim cov alternating tam sim no ncaj qha los ntawm diodes rau hauv ncaj qha tam sim no, ces converts nws mus rau high-frequency alternating tam sim no los ntawm switching fais fab mov, thiab outputs nws tom qab raug rho tawm los ntawm high-frequency transformer, high- zaus rectified los ntawm ceev rov qab diodes thiab lim los ntawm inductors thiab capacitors, raws li qhia nyob rau hauv daim duab 1.
1.1 main circuit
Tag nrho cov txheej txheem ntawm kev tawm tswv yim thiab tso tawm los ntawm AC lub zog hluav taws xob muaj xws li:
(1) Cov khoom siv lim: Nws txoj haujlwm yog los lim cov clutter uas twb muaj lawm nyob rau hauv daim phiaj fais fab, thiab tib lub sijhawm, nws kuj tiv thaiv cov clutter tsim los ntawm lub tshuab no los ntawm kev pub rov qab rau hauv daim phiaj hluav taws xob pej xeem.
(2) Rectification thiab filtering: AC fais fab mov ntawm daim phiaj hluav taws xob yog ncaj qha mus rau hauv ib qho smoother DC fais fab mov, thiab ib tug ruaj khov DC fais fab mov yog muab rau lub hwj chim kho Circuit Court.
(3) Kev kho lub zog zoo: nyob nruab nrab ntawm kev lim dej lim dej thiab lub tshuab hluav taws xob, txhawm rau txhawm rau tshem tawm cov pa phem tam sim no los ntawm rectification circuit thiab txo cov hluav taws xob tsis zoo los txhim kho lub zog.
(4) Inverter: rectified direct tam sim no hloov mus rau high-frequency alternating tam sim no, uas yog ib feem ntawm high-frequency switching fais fab mov. Qhov ntau zaus, qhov me me ntawm qhov ntim thiab qhov hnyav rau cov zis hluav taws xob.
(5) Tso zis rectification thiab filtering: muab ib tug ruaj khov thiab txhim khu kev qha DC fais fab mov raws li qhov xav tau ntawm cov load.
1.2 tswj Circuit Court
Ntawm qhov tod tes, kev ua piv txwv los ntawm qhov kawg tso zis yog piv nrog cov txheej txheem teeb tsa, thiab tom qab ntawd lub inverter yog tswj los hloov nws cov zaus lossis mem tes dav kom ua tiav cov zis ruaj khov. Ntawm qhov tod tes, raws li cov ntaub ntawv muab los ntawm kev ntsuas Circuit Court, kev tswj xyuas Circuit Court yog muab los ua kom tiav ntau yam kev tiv thaiv kev ntsuas rau tag nrho lub tshuab tom qab kev txheeb xyuas los ntawm kev tiv thaiv Circuit Court.
1.3 nrhiav pom Circuit Court
Ntxiv nrog rau kev muab ntau yam tsis sib xws hauv kev ua haujlwm hauv kev tiv thaiv Circuit Court, nws kuj tseem muab ntau yam kev ntsuas cov ntaub ntawv rau cov neeg ua haujlwm saib xyuas thiab sau tseg.
1.4 auxiliary fais fab mov
Muab ntau yam khoom siv hluav taws xob (AC thiab DC voltage khoom siv ntawm ntau qib) xav tau los ntawm tag nrho cov circuits ntawm switching rectifier nws tus kheej.
Ua hauj lwm hauv paus ntsiab lus ntawm QPS11/10 system
Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog tias lub rectifier module hloov AC input rau hauv DC tso zis, thiab tom qab ntawd xa mus rau DC fais fab faib module thiab lub roj teeb fuse module txuas nrog tib lub sijhawm los ntawm lub tsheb npav, thiab tso tawm los ntawm kev hloov pauv lossis fuse hauv lub zog faib module muab lub zog rau lub nra thiab them lub roj teeb. Thaum lub zog ua lag luam cuam tshuam, lub roj teeb muab lub zog rau lub nra. Tus tswj module sib txuas lus nrog lub tswb module thiab lub rectifier module los ntawm RS485. Lub tswb module yog lub luag haujlwm rau kev ntsuas cov ntaub ntawv thiab sau, thiab nws cov khoom muaj xws li kev lag luam fais fab, DC faib module, roj teeb fuse module thiab roj teeb. Thaum lub kaw lus ua haujlwm, tus tswj module saib xyuas ntau lub xeev ntawm lub kaw lus, kho nws cov kev txwv, thiab ua tiav cov haujlwm ua ntej. Thaum lub kaw lus yog txawv txav, nws xa tawm lub tswb teeb liab, uas yog tso tawm los ntawm lub tswb module thiab tso tawm rau ntawm lub module tswj.
