PS22053

Intellimod™ Module

Dual-In-Line Intelligent Power Module

10 Amperes/1200 Volts

Powerex, Inc., 200 E. Hillis Street, Youngwood, Pennsylvania 15697-1800 (724) 925-7272

6

Rev. 10/05

Protection Function Timing Diagrams

A1

A4

A5

A2

SC

A7

A3

SET

RESET

RC FILTER TIME

CONSISTANT DELAY

SC REFERENCE VOLTAGE

A6

A8

LOWER-SIDE

CONTROL INPUT

PROTECTION

CIRCUIT STATE

INTERNAL IGBT GATE

OUTPUT CURRENT IC

SENSE VOLTAGE ON

THE SHUNT RESISTOR

FAULT OUTPUT FO

Short-Circuit Protection (N-side only, with external shunt resistor and CR filter)

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 (determined by the external capacitance CFO).

A6: Input “L” – IGBT off.

A7: Input “H” – IGBT on is blocked during the FO output period.

A8: IGBT stays in off state.

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 (N-side, UVD)

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 asserted during the period from minimum pulse width or until control supply recover to UVDr.

B6: Under-voltage reset (UVDr).

B7: Normal operation – IGBT turn on and conducting current.