PID CONTROL REGULATOR WITH CONSTRAINED OUTPUT SIGNALS Russian patent published in 1998 - IPC

FIELD: automatic control of manufacturing processes. SUBSTANCE: device has parallel circuit of amplifier and integrator, which outputs are connected to inputs of adder which output is connected to non-linear clipper and input of first non-linear element. In addition device has two setters of inner clipping levels, two switching relays, two OR gates and second non-linear element, which input is connected to output of integrator, which control input is connected to outputs of first and second switching relays, which normally-off contacts are connected to outputs of first and second setters of inner clipping levels. Control inputs of relays are connected to outputs of first and second OR gates respectively. First inputs of first and second OR gates are connected to first and second outputs of first non-linear element respectively. Second inputs of first and second OR gates are connected to first and second outputs of second non-linear elements respectively. EFFECT: increased dynamic characteristics, increased precision of regulation. 2 dwg