Nachev

Blagovest Georgiev Nachev, Varna BG

Patent application number	Description	Published
20100201297	METHOD FOR CONTROL OF SYNCHRONOUS ELECTRICAL MOTORS - Method for control of synchronous electrical motors that enables determining continuously in time the motor load angle and speed of rotation without using additional rotor position sensors. The method is realized with solving the set of differential equations that govern the currents and the voltages in the stator windings of the motor for the time intervals between each two consecutive reachings of the currents in the windings to their set values and deriving relationships between the induced in the windings back-electromotive force voltages and the parameters of the Pulse Width Modulation. The parameters of the Pulse Width Modulation are measured and stored in memory and based on the derived relationships the values of the back-electromotive force voltages are calculated at every moment in time and from these values subsequently the values of the load angle and the angular rotor speed of the motor are calculated.	08-12-2010

Patent application number	Description	Published
20100265458	CONTACT LENS FOR TREATING BINOCULAR DIPLOPIA - A contact lens for treating binocular diplopia, the contact lens comprising: a central region adapted to degrade light passing therethrough, so as to create a central scotoma in a patient's eye in which the contact lens is placed in use; and a peripheral region adapted to degrade light passing therethrough to a lesser extent than in the central region, or not at all; such that, in use, an image in the field of view of the said eye is degraded only in the centre or to a greater extent in the centre than in the periphery. Also provided is a method of manufacturing such a lens, and a method of treating binocular diplopia comprising applying such a lens to a patient's eye.	10-21-2010

Patent application number	Description	Published
20100201297	METHOD FOR CONTROL OF SYNCHRONOUS ELECTRICAL MOTORS - Method for control of synchronous electrical motors that enables determining continuously in time the motor load angle and speed of rotation without using additional rotor position sensors. The method is realized with solving the set of differential equations that govern the currents and the voltages in the stator windings of the motor for the time intervals between each two consecutive reachings of the currents in the windings to their set values and deriving relationships between the induced in the windings back-electromotive force voltages and the parameters of the Pulse Width Modulation. The parameters of the Pulse Width Modulation are measured and stored in memory and based on the derived relationships the values of the back-electromotive force voltages are calculated at every moment in time and from these values subsequently the values of the load angle and the angular rotor speed of the motor are calculated.	08-12-2010