U2010B

U2010B Phase Control Circuit for Current Feedback Description The U2010B is designed as a phase-control circuit in bipolar technology. It enables load-current detection and has a soft-start function as well as reference voltage output. Motor control with load-current feedback and overload protection are preferred applications. Features D Full wave current sensing D Mains supply variation compensated D Programmable load-current limitation with over- and high-load output D Internal supply voltage monitoring D Current requirement 3 mA D Temperature compensated reference voltage v D Variable soft-start D Voltage and current synchronization D Automatic retriggering switchable D Triggering pulse typical 125 mA Package: DIP16, SO16 Applications D Advanced motor control D Grinder D Drilling machine Block Diagram 96 11646 15 Limiting detector Voltage detector 14 Overload Mains voltage compensation 13 12 11 Supply voltage 10 GND High load Automatic retriggering Output Current detector 16 Pulse output 1 Load current detector 100% 70% amax A 9 Phase control unit ö = f (V4) – 1 2 + Full wave rectifier B Programmable Auto– start overload protection C Imax Voltage monitoring Level shift Soft start 4 5 Figure 1. Block diagram 6 7 Reference voltage 8 2 3 TELEFUNKEN Semiconductors Rev. A1, 28-May-96 1 (12) Mains Supply U2010B General Description The U2010B contains voltage limiting and can be connected with the mains supply via D1 and R1. Supply voltage betwe...