T2117
Description
The integrated circuit, T2117, is designed as a zerovoltage switch in bipolar technology. It is used to control resistive loads at mains by a triac in zero-crossing mode. A ramp generator allows power control function by period group control, whereas full-wave logic guarantees that full mains cycles are used for load switching.
Features
D Direct supply from the mains D Current consumption ≤ 0.5 m A D Very few external ponents D Full-wave drive
- no DC current ponent in the load circuit D Negative output current pulse typ. 100 m A
- short-circuit protected D Simple power control D Ramp generator D Reference voltage
Applications
D Full-wave power control D Temperature regulation D Power blinking switch
Block Diagram
D1 220 k W (250 V~) R2 (Rsync) R1 BYT41M 18 k W/ 2W
- VS 2 1 R5 12 k W max 100 k W min R6 18 k W 3 4 + +
- parator 6 Full-wave logic Pulse amplifier R3 Ramp generator 8 Synchronization 5 7 Supply GND C1 100 m F/ 16 V TIC 236N 100 W VM = 230 V~ MT2 MT1 Load 1000 W...
