C&H Technology PS21963-4CE - Manual (Page 7)

PS21963-4E, PS21963-4AE, PS21963-4CE
Intellimod™ Module
Dual-In-Line Intelligent Power Module
8 Amperes/600 Volts
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697-1800 (724) 925-7272
6 Rev. 12/09
Protection Function Timing Diagrams
A1
A4
A5
A2
SC
A7
A3
SET RESET
CR CIRCUIT TIME CONTAINS
DELAY (NOTE)
SC REFERENCE VOLTAGE
A6
A8
LOWER-ARMS
CONTROL INPUT
PROTECTION
CIRCUIT STATE
INTERNAL IGBT GATE
OUTPUT CURRENT IC
SENSE VOLTAGE OF
THE SHUNT RESISTOR
FAULT OUTPUT FO
Short-Circuit Protection (Lower-arms only with the external shunt resistor and RC filter)
B1
B4
B5
B2
UVDt
B7
B3
SET
RESET RESET
UVDr
B6
CONTROL INPUT
PROTECTION
CIRCUIT STATE
CONTROL SUPPLY
VOLTAGE VD
OUTPUT CURRENT IC
FAULT OUTPUT FO
Under-Voltage Protection (Lower-side, UVD)
A1: Normal operation – IGBT turn on and conducting current.
A2: Short-circuit current detected (SC trigger).
A3: IGBT gate hard interrupted.
A4: IGBT turn off.
A5: FO output with a fixed pulse width of tFO(min) = 20µs.
A6: Input “L” – IGBT off.
A7: Input “H” – IGBT on is blocked during the FO output period.
A8: IGBT stays in off state.
B1: Control supply voltage rise – After the voltage level reaches UVDr, the drive circuit begins to work
at the rising edge of the next input signal.
B2 : Normal operation – IGBT turn on and conducting current.
B3: Under-voltage trip (UVDt).
B4: IGBT turn off regardless of the control input level.
B5: FO output during under-voltage period, however, the minimum pulse width is 20µs.
B6: Under-voltage reset (UVDr).
B7: Normal operation – IGBT turn on and conducting current.