A two-state object control system comprises a comparator unit (1), a master analogue signal generator unit (7), a proportional and floating controller (16), and an analogue to pulse train converter (19) whose output is connected to the input of a controlled object (5). Two outputs of controlled object (5) drive corresponding inputs (11, 12) of master analogue signal generator unit (7) with one input (11) being interconnected with one input (2) of comparator unit (1). The other input (3) of comparator unit (1) is connected to the output (6) of signal generator unit (7). A reference signal unit (9) is also connected to the signal generator unit (7). <IMAGE>
Two-state object control system