List of Common Mode Servo Boards

This is a list of Common Mode Servo Boards (JGW-D1503567). Here, several different variants of CMSB are summarized.

Board S/N

Chassis S/N

CMS Board JGW

Assembled Chassis JGW

Use

Version

Additional Changes

Current Place

Confirmed Date

Remarks

001

S1503859

MZI

Default?

unknown

PSL room

003

002

JGW-S1605803

S1605810

IMC

Default

no changes made in signal path

IOO rack

2018.08.21(Nakano, Enomoto)
2021.04.15(YamaT)

004

003

JGW-S1605803

S1605811

CARM (tentative)

CARM ver1

Circuit Room (Mozumi)

2018.08.16 (Enomoto)

005

004

JGW-S1605804

S1605812

PLL X (tentative)

PLL ver1

ALS0 rack

2018.09.28 (Enomoto)

006

005

JGW-S1605805

S1605813

Gr PDH X (tentative)

Gr PDH ver1

LSC0 rack

2018.09.28 (Enomoto)

Block Diagram

CMSB Block Diagram

List of Variants

Red highlighted part: Exceptional Changes

Default

Common Compensation

Common Boost 1

Common Boost 2

Common Boost 3

pole/zero

40Hz/4kHz

1kHz/20kHz

1kHz/20kHz

300Hz/4.5kHz

Parts

R70:1.2k

C121:33n

R72:1.5k

R77:82

C118:100n

R74:1.5k

R78:82

C119:100n

R76:4.99k

R79:374

C120:100n

Slow Boost

Slow Compensation

Slow Generic

LPF at the last stage

pole/zero

4Hz/400Hz

4Hz pole

gain as -0.1 (klog#11454)

100kHz pole --> 500kHz pole in ver2 --> 30kHz pole (klog#11454)

Parts

C225:330n

C220:330n

R134:0, R138:NL, R141:1k (klog#11454)

C261: 470p --> 100p in ver2 --> C261:1.5n (klog#11454)

Fast HPF 1

Fast HPF 2

pole/zero

5Hz High pass --> 2kHz High pass (klog#11454)

5Hz High pass --> 36kHz Low pass (klog#11454)

Parts

C275:20u --> C275:NL, C279:0.047u (klog#11454)

C276:20u --> R179:0, R184: 0, R187:2k, R188: 2k, C290: 2.2n (klog#11454)

MZI

Common Compensation

Common Boost 1

Common Boost 2

Common Boost 3

pole/zero

40Hz/4kHz

10Hz/400Hz

10Hz/400Hz

1Hz/100Hz

Parts

R70:1.2k

C121:33n

R72:15k

R77:390

C118:1000n

R74:15k

R78:390

C119:1000n

R76:150k

R79:1.5k

C120:1000n

Slow Boost

Slow Compensation

pole/zero

4Hz/400Hz

4Hz pole

Parts

C225:330n

C220:330n

Fast HPF 1

Fast HPF 2

pole/zero

5Hz High pass

5Hz High pass

Parts

C275:20u

C276:20u

CARM (ver1)

Common Compensation

Common Boost 1

Common Boost 2

Common Boost 3

pole/zero

40Hz/4kHz

10Hz/1kHz

10Hz/1kHz

300Hz/4.5kHz

Parts

R70:1.2k

C121:33n

R72:15k

R77:165

C118:1000n

R74:15k

R78:165

C119:1000n

R76:4.99k

R79:374

C120:100n

Slow Boost

Slow Compensation

pole/zero

4Hz/400Hz

4Hz pole

Parts

C225:330n

C220:330n

Fast HPF 1

Fast HPF 2

pole/zero

5Hz High pass

5Hz High pass

Parts

C275:20u

C276:20u

PLL (ver1)

Common Compensation

Common Boost 1

Common Boost 2

Common Boost 3

pole/zero

40Hz/4kHz

0Hz/10Hz

20Hz/2kHz

20Hz/2kHz

Parts

R70:1.2k

C121:33n

R72:omit

R77:15k

C118:1000n

R74:8.06K

R78:82

C119:1000n

R76:8.06K

R79:82

C120:1000n

Slow Boost

Slow Compensation

LPF at the last stage

pole/zero

4Hz/400Hz

4Hz pole

100kHz pole --> 500kHz in ver2

Parts

C225:330n

C220:330n

C261: 470p --> 100p in ver2

Fast HPF 1

Fast HPF 2

pole/zero

5Hz High pass

5Hz High pass

Parts

C275:20u

C276:20u

Gr PDH (ver1)

Common Compensation

Common Boost 1

Common Boost 2

Common Boost 3

pole/zero

40Hz/400Hz

10Hz/1kHz

100Hz/1kHz

300Hz/4.5kHz

Parts

R70:12k

C121:33n

R72:15k

R77:165

C118:1000n

R74:1.5k

R78:165

C119:1000n

R76:4.99k

R79:374

C120:100n

Slow Boost

Slow Compensation

LPF at the last stage

pole/zero

4Hz/400Hz

4Hz pole

100kHz pole --> 500kHz in ver2

Parts

C225:330n

C220:330n

C261: 470p --> 100p in ver2

Fast HPF 1

Fast HPF 2

pole/zero

5Hz High pass

5Hz High pass

Parts

C275:20u

C276:20u

Summing Node (ver1)

Common Compensation

Common Boost 1

Common Boost 2

Common Boost 3

pole/zero

40Hz/48kHz

10Hz/1kHz

10Hz/1kHz

300Hz/4.5kHz

Parts

R68:120k

R70:100

C121:33n

R72:15k

R77:165

C118:1000n

R74:15k

R78:165

C119:1000n

R76:4.99k

R79:374

C120:100n

Slow Boost

Slow Compensation

pole/zero

4Hz/400Hz

4Hz pole

Parts

C225:330n

C220:330n

Fast HPF 1

Fast HPF 2

pole/zero

5Hz High pass

5Hz High pass

Parts

C275:20u

C276:20u

Common Excitation

pole/zero

Differential Amp

Parts

R82:10k

R91:10k

Summing Node (ver2)

Common Compensation

Common Boost 1

Common Boost 2

Common Boost 3

pole/zero

40Hz/48kHz

10Hz/1kHz

10Hz/1kHz

300Hz/4.5kHz

Parts

R68:12k

R70:100

C121:33n

R72:15k

R77:165

C118:1000n

R74:15k

R78:165

C119:1000n

R76:4.99k

R79:374

C120:100n

Slow Boost

Slow Compensation

pole/zero

4Hz/400Hz

4Hz pole

Parts

C225:330n

C220:330n

Fast HPF 1

Fast HPF 2

pole/zero

5Hz High pass

5Hz High pass

Parts

C275:20u

C276:20u

Common Excitation

pole/zero

Differential Amp

Parts

R82:10k

R91:10k

KAGRA/Subgroups/MIF/AEL/CMSB (last edited 2021-04-15 17:15:32 by TakahiroYamamoto)