High Power Free Floating Phase Control Thyristor

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Phase Control Thyristor (Free Floating Type)

Description:

With the development of increasing power and capacity of converter equipment, especially HVDC transmission, the output power capacity of unit thyristor?is request to increase accordingly, such will reduce the installation quantity of thyristor in series and parallel connection circuit. The device size and weight will be reduced, lower investment, even current and even voltage will be realized easily, the reliable operation and commercial value will be increased significantly.

The free floating silicon technology employed to manufacture high power high current thyristor will satisfy the high standard application requirement. And in 2019 July, RUNAU Electronics had developed 5200V thyristor with 5”?chip successfully and supplied to customer?which applied in China HVDC project.?

Introduction:

1. Chip

The high standard thyristor chip manufactured by RUNAU Electronics is free floating technology applied. It’s the well acknowledged?as the latest and mature technology for manufacturing the high power high voltage thyristor. It’s widely applied by the most world class manufactures.

The diffusion process was optimized in density and width to increase the voltage resistance, decrease the on-state voltage drop, and improve?the trigger & dynamic?characteristics. New photolithography?pattern was designed to enhance the di/dt and dv/dt feature. Contact structure of chip was re-constructed to protect the edge of silicon wafer and cathode?surface, the reverse voltage performance will be improved greatly. ??

2. Encapsulation

The advantage of free floating silicon technology is the deformation between silicon and molybdenum wafer restrained greatly and molybdenum wafer consumption?reduced. While the flatness of silicon wafer and copper block of package are highly required as well the parallelism?and roughness?requirement are higher than alloying chip technology. By the continuous improving and innovation, RUNAU Electronic had overcome all the technical difficulties and barriers. The free floating technology, high power high voltage thyristor with reliable performance and commercial efficient solution was developed and provided to clients. Most of them are installed in the high?power controllable rectifier, high voltage soft starter, HVDC power transmission, locomotive traction,?dynamic reactive power compensation?and pulse power application system.

Technical specification

  1. Phase controlled thyristor with alloy type chip manufactured by RUNAU Electronics, range of ITAV?from 350A to 5580A and VDRM/VRRM?from 3400V to 8500V.
  2. IGT, VGT?and IH?are the test values at 25℃, unless otherwise stated, all the other parameters are the test values under Tjm;
  3. I2t=I2F SM×tw/2,?tw= Sinusoidal half wave current base width.?At 50Hz, I2t=0.005I2FSM(A2S);
  4. At?60Hz: IFSM(8.3ms)=IFSM(10ms)×1.066,Tj=Tj; I2t(8.3ms)=I2t(10ms)×0.943,Tj=Tjm

Parameter:

TYPE IT(AV)
A
TC
VDRRM/VRRM
V
ITSM
@TVJIM&10msA
I2t
A2s
VTM
@IT&TJ=25℃
V / A
Tjm
Rjc
℃/W
Rc-s
℃/W
F
KN
m
Kg
CODE
Voltage up to 4200V
KP3170-** 3170 70 3400~4200 52000 1.3×107 1.40 3000 125 0.008 0.002 70 1.45 T15C
KP4310-** 4310 70 3400~4200 60000 1.8×107 1.30 3000 125 0.006 0.002 90 2.90 T17D
KP5580-** 5580 70 3400~4200 90000 4.0×107 1.40 5000 125 0.004 0.001 120 3.60 T18D
Voltage up to 5200V
KP970-** 970 70 4400~5200 13500 9.1×105 2.70 2000 125 0.022 0.005 22 0.60 T8C
KP2080-** 2080 70 4400~5200 29200 4.2×106 1.60 2000 125 0.010 0.003 60 1.10 T13C
KP2780-** 2780 70 4400~5200 42000 8.8×106 1.70 3000 125 0.008 0.002 70 1.45 T15C
KP3910-** 3910 65 4400~5200 55000 1.5×107 1.50 3000 125 0.006 0.002 90 2.90 T17D
KP4750-** 4750 70 4400~5200 8700 3.7×107 1.50 5000 110 0.004 0.001 120 3.60 T18D
Voltage up to 6600V
KP350-** 350 70 5800~6600 4500 1.0×105 2.20 500 125 0.039 0.008 10 0.33 T5C
KP730-** 730 70 5800~6600 11800 6.9×105 2.20 1000 125 0.022 0.005 22 0.60 T8C
KP1420-** 1420 70 5800~6600 22400 2.5×106 2.10 1500 125 0.010 0.003 60 1.10 T13C
KP1800-** 1800 70 5400~6600 32000 5.1×106 1.90 1600 125 0.008 0.002 70 1.45 T15C
KP2810-** 2810 70 5800~6600 45000 1.0×107 2.00 3000 125 0.006 0.002 90 2.90 T17D
KP4250-** 4250 70 5800~6600 71400 2.5×107 1.70 3000 110 0.004 0.001 120 3.60 T18D
Voltage up to 7200V
KP300-** 300 70 6800~7200 3400 5.8×104 2.40 500 115 0.039 0.008 10 0.40 T5D
KP640-** 640 70 6800~7200 9000 4.0×105 2.30 1000 115 0.022 0.005 22 0.65 T8D
KP1150-** 1150 70 6800~7200 18300 1.6×106 2.40 1500 115 0.010 0.003 60 1.30 T13D
KP1510-** 1510 70 6800~7200 26000 3.3×106 2.00 1600 115 0.008 0.002 70 1.85 T15D
KP2640-** 2640 70 6800~7200 40000 8.0×106 1.50 1500 115 0.006 0.002 90 2.90 T17D
Voltage up to 8500V
KP270-** 270 70 7400~8500 2900 4.2×104 2.80 500 115 0.045 0.008 10 0.40 T5D
KP580-** 580 70 7400~8500 6000 1.8×105 2.60 1000 115 0.022 0.005 22 0.65 T8D
KP1080-** 1080 70 7400~8500 11300 6.3×105 2.80 1500 115 0.010 0.003 60 1.30 T13D
KP1480-** 1480 70 7400~8500 17000 1.4×106 2.10 1600 115 0.009 0.002 70 1.85 T15D

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