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