EATON 15-000967-1116
EATON 15-000967-1116
電路設(shè)計(jì)
為完成探測(cè)器輸出電流向電壓的精確轉(zhuǎn)化,所設(shè)計(jì)的電路由CTIA 和相關(guān)雙采樣(CDS)組成,CTIA 由反向放大器和反饋積分電容構(gòu)成的一種復(fù)位積分器。其增益大小由積分電容確定。圖1 為典型CTIA 電路結(jié)構(gòu)。
圖1 典型CTIA 結(jié)構(gòu)
當(dāng)Reset 信號(hào)為高時(shí),MOS 開關(guān)開通,由運(yùn)算放大器的虛短特性可知,輸入端的電壓與Vref相等,此時(shí)積分電容兩端電壓相等, 都為Vref。當(dāng)Reset 信號(hào)變?yōu)榈碗娖綍r(shí),MOS 開關(guān)關(guān)斷,由于輸入端的電壓由Vref控制,因此在積分電容Cf右極板上產(chǎn)生感應(yīng)電荷并慢慢積累,右極板電壓逐漸增大,積分過程開始。zui后電壓通過相關(guān)雙采樣電路讀出。
EATON 15-000967-1116
Landis Tool A85025 INT PC Board - Used
Landis Tool MTC 55 MTC55 PC Board C92664 - Used
Landis Tool MTC 31 MTC31 PC Board C92626 - Used
Landis Tool A-81040 A81040 PC Board XTL I - Used
Landis Tool A-86503 A86503 RMP 2 PC Board - Used
LANDIS & GYR PTM6.2I420 NSPP PTM62I420
Landis Tool A-86503 A86503 RMP 2 PC Board - Used
Landis Tool MTC 3 MTC3 PC Board C85086 - Used
Landis Tool MTC 13 MTC13 PC Board C92315 - Used
Landis Tool MTC 33 MTC33 PC Board C92628 - Used
Landis Tool Co K683 Relay Driver Module - Used
LANDIS & GYR 549-506 NSFP 549506
LANDIS & GYR TXM1.6R USPP TXM16R
Controller System 600 Landis & Gyr BCS R536-228 TCU Unit
Landis Tool A86486 CTR Board
Landis Tool Co SDM 1 SDM1 Drive Module - Used
LANDIS & GYR UNDERGROUND FEED METER CAN