SCR gate driver BAP-3012

BAP-3012 Twelve Pulse SCR Driver FEATURES INCLUDE - Provides complete control of 12 Pulse AC-DC Converters and AC Phase Controllers - Matches bridge currents to within +/-2% - Reduces output voltage ripple and input harmonics - On board Current Limit pot allows current mode operation - Provides Overtemperature protection of semiconductor devices - Provides hard DC gate firing, suitable for firing large area devices - Includes on-board diagnostic LED indicators The BAP-3012 is the latest generation of twelve pulse gate firing board for SCR control. Standard BAP-3012 features provide robust and reliable operation driving parallel or series connected SCR bridges. BAP-3012 standard features include: instant inhibit phase loss inhibit soft start & soft stop functions controls AC main voltages up to 600 VAC on-board diagnostic LED indicators on-board current limit control active balancing of parallel bridge currents to +/-2% The BAP-3012 provides complete SCR firing control for industrial/commercial power supplies of any power level, delivering hard firing gate drive power to control larger SCRs from 16mm to 100mm. The BAP3012 allows the user to take advantage of the benefits inherent to 12 pulse converters. These topologies provide very low output voltage ripple and minimize input harmonic distortion. However, to fully take advantage of dual bridge topologies, the current outputs of each bridge must be properly balanced. Without the BAP-3012, slight mismatches (.5%) in transformer secondary voltages may result in current imbalances between paralleled bridges as high as 20%.