  Phase diagrams of charged semi-hard-core bosons are studied in the mean field
approximation. An increase in the parameter of local correlations is shown to
lead to the transformation of the phase diagram of the system from the form
characteristic of hard-core bosons to the limiting form with a parabolic
dependence of the critical temperature of charge ordering on the boson
concentration. The evolution between these limiting cases is dependent on the
ratio between the model parameters and is accompanied by various effects, such
as the change in the phase transition type, the appearance of new order-order
transition, and the appearance of new critical points.
