Txoj kev thiab cov kauj ruam rau kev sim hloov lub hwj chim mov siv lub oscilloscope digital
Oscilloscope thiab kev ntsuas hluav taws xob
Rau cov neeg siv lub oscilloscope rau high-bandwidth ntsuas, lub zog ntsuas yuav yooj yim vim nws qhov zaus kuj tsawg. Qhov tseeb, kuj tseem muaj ntau qhov kev sib tw uas cov neeg tsim hluav taws xob high-speed circuit tsis tau ntsib hauv kev ntsuas hluav taws xob.
Qhov voltage ntawm tag nrho cov switchgear yuav siab thiab ntab, txhais tau tias nws tsis yog av. Cov mem tes dav, lub sij hawm, zaus, thiab lub voj voog ua haujlwm ntawm lub teeb liab yuav sib txawv. Nws yog ib qho tsim nyog yuav tsum tau ntes thiab txheeb xyuas lub waveform kom tseeb thiab kuaj xyuas txhua qhov txawv txav hauv lub waveform. Cov kev cai rau oscilloscopes yog xav tau. Ntau qhov kev sojntsuam - ib txhij xav tau ib qho kev sojntsuam xaus, kev sojntsuam sib txawv, thiab kev sojntsuam tam sim no. Cov cuab yeej yuav tsum muaj lub cim xeeb loj los muab qhov chaw kaw cia rau cov txiaj ntsig tau ntev-ntev tsawg zaus. Thiab nws yuav xav tau kev ntes cov cim sib txawv nrog qhov sib txawv loj ntawm qhov sib txawv hauv ib qho kev tau txais.
Lub hauv paus ntawm Switching Power Supply
Lub mainstream DC fais fab mov architecture nyob rau hauv feem ntau niaj hnub systems yog ib tug switching fais fab mov (SMPS), uas yog paub zoo tias nws muaj peev xwm los daws tau cov kev hloov loads. Cov hluav taws xob teeb liab txoj kev ntawm ib qho kev hloov pauv hluav taws xob muaj xws li cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab cov khoom sib nqus. Hloov cov khoom siv hluav taws xob yuav tsum txo qis kev siv cov khoom poob xws li cov resistors thiab linear transistors, thiab feem ntau yog siv cov khoom tsis zoo xws li hloov cov transistors, capacitors, thiab cov khoom sib nqus.
Lub tshuab hluav taws xob hloov hluav taws xob kuj tseem muaj qhov tswj hwm, uas suav nrog cov khoom siv xws li pulse width modulation regulator, pulse zaus modulation regulator, thiab tawm tswv yim voj 1. Cov seem tswj yuav muaj nws lub hwj chim mov. Daim duab 1 yog daim duab qhia yooj yim ntawm cov khoom siv hluav taws xob hloov pauv, uas qhia txog lub zog hloov pauv, suav nrog cov khoom siv nquag, cov khoom siv tsis zoo, thiab cov khoom sib nqus.
Kev siv hluav taws xob hloov hluav taws xob siv hluav taws xob semiconductor hloov khoom siv xws li hlau oxide field-effect transistors (MOSFETs) thiab insulated gate bipolar transistors (IGBTs). Cov khoom siv no muaj lub sijhawm hloov pauv luv luv thiab tuaj yeem tiv taus qhov hluav taws xob tsis ruaj khov. Qhov tseem ceeb sib npaug, lawv siv lub zog me me hauv ob qho tib si qhib thiab kaw, nrog kev ua haujlwm siab thiab tsim hluav taws xob tsawg. Hloov cov khoom siv feem ntau txiav txim siab tag nrho kev ua haujlwm ntawm kev hloov cov khoom siv hluav taws xob. Cov kev ntsuas tseem ceeb ntawm cov khoom siv hloov pauv muaj xws li: hloov pauv, qhov nruab nrab lub zog poob, thaj chaw ua haujlwm nyab xeeb, thiab lwm yam.
