IRMDSS1 Datasheet, PDF (1/23 Pages) International Rectifier – IR1110 Soft Start IC Reference Design Kit For AC Motor Drives, UPS, Welders, and other applications

IRMDSS1
IR1110 Soft Start IC Reference Design Kit
For AC Motor Drives, UPS, Welders, and other applications
• Complete stand alone
converter system
• IR1110 advanced monolithic
soft start IC
• IRKH SCR/Diode Modules
• Up to 20HP drive capability
and expansion option of 60HP
with added busbars
• Easily detachable SCR/Diode
modules
• 230/460/575V AC input
voltage with 320V-550V
factory setting
• On-board snubber derived
+15V, +5V, and –5V power
Figure 1 IRMDSS1 IR1110 Reference Design Kit
supply
• Automatic soft charging of DC bus capacitor with adjustable ramp rate
• Controllable DC bus voltage output
• Isolated control inputs for DC bus reference command and override reset function
• Isolated diagnostics outputs for line status
• Protection against DC bus short condition and AC line loss condition
• Fast automatic ramp-back of the DC bus voltage after transient loss of line
• Terminal blocks for 3-phase AC input and DC bus output, up to 40A.
Opto-Isolation Interface
Fault Status Output
Bus Voltage Reference
IR1110 Reference
Design PCB
DCBUS+
AC
3-Phase
or 1-phase
Input
Figure 2 Block Diagram
DCBUS-
1