Low frequency wobble generator consists of saw-tooth generator linked to analogue-digital convertor and relay

摘要

The low frequency wobble generator has a saw-tooth generator (1), an analogue-digital convertor (2), a N-identical relay (3) with two breaking contacts on each. It also has a specific Vienna-Robinson bridge (4) and a differential amplifier (11) as well as tri-polar (12) with tension-controlled output resistance. The Vienna-Robinson bridge comprises two identical first (5) and second (6) capacitor current branches and two identical first (7) and second (8) paired variable resistances as well as two resistors (9) and (10) with resistances (R1 and R2). The output of the saw-tooth generator is connected with the input of the analogue-digital convertor.