INTEGRATED FUNCTIONS AND FEATURES

? Converter bridge for 3 phase AC-to-DC power conversion.

? Circuit for dynamic braking of motor regenerative energy.

? 3-phase IGBT inverter bridge configured by the latest 3rd. generation IGBT and diode technology.

INTEGRATED DRIVE, PROTECTION AND SYSTEM CONTROL FUNCTIONS:

? For inverter side upper-leg IGBTs : Drive circuit, High voltage isolated high-speed level shifting, Short circuit protection (SC).

Bootstrap circuit supply scheme (single drive power supply) and Under voltage protection (UV).

? For inverter side lower-leg IGBTs : Drive circuit, Short circuit protection (SC).

Control supply circuit under- & over- voltage protection (OV/UV).

System over temperature protection (OT). Fault output signaling circuit (FO) and Current limit warning signal output (CL).

? For Brake circuit IGBT : Drive circuit

? Warning and Fault signaling :

FO1 : Short circuit protection for lower-leg IGBTs and Input interlocking against spurious arm shoot-through.

FO2 : N-side control supply abnormality locking (OV/UV).

FO3 : System over-temperature protection (OT).

CL : Warning for inverter current overload condition

? For system feedback control : Analogue signal feedback reproducing actual inverter output phase currents (3φ).

? Input Interface : 5V CMOS/TTL compatible, Schmitt trigger input, and Arm-Shoot-Through interlock protection.

APPLICATION

Acoustic noise-less 0.4kW/AC200V class 3 phase inverter and other motor control applications