Solid State Induction Modulator Solid State Induction Modulator replacement for replacement for

SLAC Klystron ModulatorsSLAC Klystron ModulatorsR.L. CASSEL, J.E.DeLAMARE, M.N. NGUYEN, G.C. PAPPAS, SLAC*

Stanford Linear Accelerator Center, LLNL , Bechtel Nevada

*Work supported Department of Energy contract DE-AC03-76SF515

R.L. Cassel

24th International Power Modulator SymposiumJune 2000

NLC SOLID STATE INDUCTIONNLC SOLID STATE INDUCTIONMODULATOR PROGRM MODULATOR PROGRM

� Model program using 10 cores with standard pulse transformer to drive 5045 klystrons.

� Full modulator core stacks of 76 cores with one turn secondary to drive water load to one-third full voltage

� Full core stack with three turns to drive full 500 kV into water load

� Then full current at 400 kV into 4 each 5045 klystrons at full repetition rate for a full load testing.

NLC Dual 10 Stack Klystron TestsNLC Dual 10 Stack Klystron Tests

5045 klystron &Pulse transformer

NLC Dual 10 Stack TestsNLC Dual 10 Stack Tests

Dual 10 Stack 5045 Klystron TestDual 10 Stack 5045 Klystron Test

C11100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV1

IGBT DRIVER

23 kV, 6.0 kA

3 usec

Q11

2 ea 3.3Kv 800A

0.007 V-Sec

23 kV

C12

50ufd 400v

D11 8kv T11

1/1

C21100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV21

IGBT DRIVER Q21

2 ea 3.3Kv 800A

C22

50ufd 400v

D21 8kv T21

1/1

C31100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV31

IGBT DRIVER Q31

2 ea 3.3Kv 800A

C32

50ufd 400v

D31 8kv T31

1/1

C10100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRVn1

IGBT DRIVER Qn1

2 ea 3.3Kv 800A

Cn2

50ufd 400v

Dn1 8kv T10

1/1

+

+

+

+

6000 A

5045 KLYSTRON340 kV 396 A

Pulse Transformer

1/15

3 uS

10 CORE sections20 IGBT drivers

5045 model test waveforms 5045 model test waveforms

� 1 each 5045 klystrons� 250kV, 250 A

5045 model Table Top modulator5045 model Table Top modulator

IGBT & Driver Board

Induction modulator PC boardsInduction modulator PC boards

Core reset board

Trigger distribution board

IGBT & Driver Board

IGBT driver and heat sink assemblyIGBT driver and heat sink assembly

Heat sink & driver board

Waveforms

Complete Driver Board

Driver PC Board AssemblyDriver PC Board Assembly

Installation of driver board

Bottom Ground side

Modulator circuit diagramsModulator circuit diagrams

Full Modulator 8 klystrons Model 5045 with pulse transformer

C11100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV1

IGBT DRIVER

23 kV, 6.0 kA

3 usec

Q11

2 ea 3.3Kv 800A

0.007 V-Sec

23 kV

C12

50ufd 400v

D11 8kv T11

1/1

C21100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV21

IGBT DRIVER Q21

2 ea 3.3Kv 800A

C22

50ufd 400v

D21 8kv T21

1/1

C31100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV31

IGBT DRIVER Q31

2 ea 3.3Kv 800A

C32

50ufd 400v

D31 8kv T31

1/1

C10100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRVn1

IGBT DRIVER Qn1

2 ea 3.3Kv 800A

Cn2

50ufd 400v

Dn1 8kv T10

1/1

+

+

+

+

6000 A

5045 KLYSTRON340 kV 396 A

Pulse Transformer

1/15

3 uS

10 CORE sections20 IGBT drivers

C11 2x100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV1

IGBT DRIVER

2.3 KV, 6000A

3 usec

Q11

2x3.3Kv 800A

0.007 V-Sec

500 kV

C12

50ufd 400v

D11 8kv T11

1/3

C212x100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV21

IGBT DRIVER Q21

2x3.3Kv 800A

C22

50ufd 400v

D21 8kv T21

1/3

C312x100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRV31

IGBT DRIVER Q31

2x3.3Kv 800A

C32

50ufd 400v

D31 8kv T31

1/3

Cn1 2x100ufd 3kv

Grid

Emitter

GRN+15V

Collector

DRVn1

IGBT DRIVER Qn1

2x3.3Kv 800A

Cn2

50ufd 400v

Dn1 8kv Tn1

1/3

++

++

2080 A

8 each KLYSTRON500 kV 260 kA3 uSec

76 CORE SECTIONS