U2008b Schaltung. After i added capacitor 47µ 25v i see this version in the web. U2008b price and availability by electronic component distributors and suppliers.
After i added capacitor 47µ 25v i see this version in the web. Supply voltage between pin 4 pos and pin 5 is smoothed by c1. The integrated circuit u2008b which also contains voltage limiting can be connected via d1 and r1 via the mains supply.
R1max m0 85 x v vsmax 2 xitot whereas vm mains voltage vsmax maximum supply voltage.
The u2008b is designed as a phase control circuit in bipolar technology. Temic alldatasheet datasheet datasheet search site for electronic components and semiconductors integrated circuits diodes triacs and other semiconductors. Supply voltage between pin 4 pos and pin 5 is smoothed by c1. The u2008b is a popular phase controller intended to drive a triac in dimmers and single phase ac motor speed controllers.
