Differences between revisions 40 and 41

Analog Electronics

Members	Meetings	Logs	Documents	Projects
Members of AEL	AEL meeting	AEL Blog	AEL related documents	DC power supply
KAGRA subgroup members	KAGRA calendar	KAGRA blog	KAGRA Acronyms	D-SUB cable
		KAGRA wiki	JGWdoc	RF cable
			JGW document search by google

Circuits
VIS	IOO	MIF	AOS	DGS
LVDT driver	TTFSS	RF PD	Optical lever	AA/AI filter
Coil driver	PMC servo	I&Q demodulator		whitening filter
GEO phone interface
stepping motor

Circuits for subsystem

Common Circuits or related things

DC Power Supply

Bipolar 24 Volt power supply
- 24V power supplier / selection report
Connector and cable
- Cables for DC24V selection report
+15V regulator (ultra low noise)
High voltages
- QPD vias voltage (In TAMA case, 180V)
- Coil driver (LIGO High-Voltage type: >140V)
- PZT driver (DC >100V or AC power supply)

RF electronics

Oscillator
RF Photo detector
- N. Mio JPCS, 122, (2008) 012014
- H. Grote RSI, 78, (2007), 054704
RF QPD detector
Demodulator
EOM driver

Audio Frequency electronics

As a general rule, differential signal transfer should be applied.
Dsub 9-pin connector and cable
Digital front-end circuits
- Anti-Alias / Anti-Imaging filter
- Differential signal buffer Amp.
- Whitening / De-whitening filter
Coil driver
AF photo detector for DC readout
Optical lever sensor
Ultra-Low-Noise Amp.
- NF SA-200F3

Safety Control

Mechanical shutter for photo detector protection
Interlock switch

-  ⇤ ← Revision 40 as of 2013-09-30 12:45:29 → 
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+   ← Revision 41 as of 2013-09-30 12:46:00 → ⇥
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  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 21:
-== VIS ==
<<Anchor(VIS)>>
=== LVDT driver ===
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1253|D1201253]] Test Circuit of Voice Coil Driver
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1253|D1201251]] Presentation for MIF meeting
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=1255|D1201255]] LVDT-Actuator Driver Electronics
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=1467|JGW-D1201467]]: LVDT and Voice Coil Drivers Electric Circuits (1/5/2013

 * [[attachment:KAGRA/Subgroup/AEL/VIS/LVDT.zip|LVDT pictures]]

==== 2013/2/15 meeting (高橋、宮川、上泉) ====
 *何ch必要か -> 100ch -> 基板24枚
  * 8ch単位で一箱 -> 計12箱
 * 基板はニケフから購入することを考える
  * 基板の箱詰めを考える
   * 安定化電源内臓のため、外部から18Vを直結
   * インターフェース -> 要検討
    * 位相ねじにフロントパネルからアクセス(穴をあける)
    * テストピンが必要かどうか確認
 * 変調信号出力を箱の中に内臓
  * 変調周波数は固定（TAMAの回路図参考)
  * 外部から変調周波数を入れるのも作っておく
 * 箱詰めした回路の完成8月完成を目処